Ham1
- Notes on using RG-174 Coaxial Cable at Medium and Lower HF Frequencies :: DXing.info
- Notes on using RG-174 Coaxial Cable at Medium and Lower HF Frequencies, an article by John Bryant and Bill Bowers
- ON4WW 160m Skype receiving beacon
- THE KC5WA WEB SITE 2009 EDITION
- LOW BAND MONITOR
- eHam.net Home
- Alan Yates' Laboratory - Latest Articles
- alan yates vk2zay's ham radio website, homebrew construction, general electronics, high voltage experiments, amateur rocketry, and general geek stuff
- free smd parts
- w7zoi.net
- Thermal noise calculation calculator Johnson noise voltage Nyquist dBu dBV - sengpielaudio
- Thermal noise calculation calculator Johnson noise voltage Nyquist - Eberhard Sengpiel sengpielaudio
Antennas
- CheapYagi4hdtv
- K7MEM - Electrically Shortened Center-Fed Half-Wave Dipole ( 3-30 MHz )
- Random length wire
- Antennas By N6LF
- Antenna design ideas for radio amateurs by Rudy Severns N6LF
Antennas-general
- W4RNL LB Cebik
- VE3SQB Ham radio antenna design software programs and sstv,qha, amateur radio,sstv,antennas,j-pole,quad,dipole,discone,antenna program, super scanner, pdl, omni, rhcp, bazooka, coaxial dipole,skyhopper)
- Mark's RF Circuit Building Blocks Page
- Antenna Links
- FW MX CSS Layer
- Site of Lloyd Butler VK5BR
- antenna2
- Amateur Radio Antenna Projects
- Antenna Design Information and Software
- ANTENAS DE HF
- ARRLWeb: Vertical Antenna
- Antennas - i1wqrlinkradio over 4000 ham radio links
- Hans Remeeus PA1HR - Ham Radio
- Dr.Aces WH2T Antenna Info
- Notable Patents on Antenna Design
- antenneX Guests Rooms
- eHam.net Reviews - Antennas: HF Mobile & Accessories
- eHam.net Antennas: HF Directional (Yagi, quad, log periodic, etc)
ant-basics
- K7MEM - Inverted V Antenna Design
- Vert. Ant design.pdf
- vert ant hype.pdf
- Mobile antennas, short verticals, loading coil loss,and loading coil current
- Small antennas and radiation resistance
- phased short vert arrays.pdf
- Short Vertical Antennas and Ground Systems
- Manuals Tech notes, PDF Download
- radiation and fields
- Comparison of Beverage antenna,magnetic loop antenna,and phased vertical receiving antennas
- Fractal Antennas
- EH Antenna Library
- Omega and Gama Matching
- NVIS Amateur Radio Antennas
Moxon
- n0khqmoxon using coax to redice size
CDD
- Little Known CCD
- CCD Antennas
Quad
- Boomless QUAD ANTENNA AT WA6CDO
- Quad Antenna JavaScript Calculator for CB and Amateur Radio Communications
- Calculate up to a seven element Quad antenna
- Cebik "Quad vs. Yagi" Question
- Cebik New Quad Studies
moble-research
- HF Mobile Antenna HB9ABX
- Texas Bug Catcher info by Gary N5ANF
- Magnetic Loop Antennas, Magnetic Loop Info, How to Build A Magnetic Loop, W2BRI Loops
- Mark's RF Circuit Building Blocks Page
- W6UP - HS-120 capacitance hat
- New-Tronics Antenna Home Page
- GLA INDEX Page
- Mobile antennas, short verticals, loading coil loss,and loading coil current
short-vertical grd-losses
- Short, Coil-Loaded, Ground-Mounted, Vertical or Slanting Antennas
- Download free software to model the performance of short, coil-loaded, ground-mounted, vertical or slanting antennas.
- Short Vertical Antennas and Ground Systems
Butternut Ground Tech notes
- Dirty Little Secrets #1
- Dirty Little Secrets #2
- Ground/Radial Systems
- Why Radials
40m-research
- FlashWebHost.com - Shorty Forty Antenna.
- When is a Compact Antenna Compact?
- Evolving Research
Screwdrivers
- Hi-Q-Antennas W6HIQ, HA5CMG, VE7BOC
- Hi-Q-Antennas™ by W6HIQ / VE7BOC / HA5CMG are state-of-the-art, SIXTH generation, stealth design. Hi-Q, Hi-Radiation efficiency is provided by the computer design and the Mil-Spec materials used in its manufacturing.
- High Sierra Antennas
- cq73, screwdriver, screwdriver antenna, high sierra antennas, ez-tune, hi q, tarheel, high q, UHF, VHF,
- Screwdriver Antennas
- Screwdriver Antenna K5YNR
- THE * Screwdriver Antenna KE4VSK
- VE3GK homebrew screwdriver
- tarheelantennas
- Starfire Product 3
- Products Larry's Antennas LLC
- the Carolina Cyclone mobile antennas
- eHam.net Reviews - Antennas: HF Mobile & Accessories
Kite
- Balloon and Kite Antennas
- Balloon or kite ant...n hard-core-dx.com
vhf-uhf
- K5OE, Texas Potato Masher Antenna
- K5OE, Amateur Radio Antennas
ant-software
- Antenna Design Information and Software
- SOFTWARE ANTENNAS - XE1BEF PAGE
- MMANA Antenna Modeling Program
- Dr Bingo's KM5KG Pages
- Short, Coil-Loaded, Ground-Mounted, Vertical or Slanting Antennas
- Nec2Go
VLF-LF
- VLF-LF And the Loop Aerial
- RECEIVING LOOP AERIALS FOR 1.8 MHz
- Active Loop Converter for LF
- Antenna Noise and Signal Cancelling at LF
- Active Loop Converter at VLF
- X-Beam
Loops
- ciromazzoni.com Loop Antenna
- Alan Yates' Laboratory - Bicycle Rim Antenna for 20 Metres
- alan yates vk2zay's ham radio website, homebrew construction, general electronics, high voltage experiments, amateur rocketry, and general geek stuff
- AM-DX.COM - Copper Tube Loop
- AM-DX.COM Copper Tube Loop
- Loop Page
- Balanced Loop Preamp
- An Unusual Magnetic Antenna
- AM Loop Antennas
- LOOP Antennas
- A Ten-Foot Receiving Loop for Low-Frequency
DX Work
- A BROADBAND SHIELDED RECEIVING LOOP FOR LOW FREQUENCY DX WORK
- A Shielded Loop For L.F. Work
- A Portable Multi-Band Magnetic Loop Antenna
- A Portable Multi-Band Magnetic Loop Antenna Version Two
- MOXON Antenna Project
- My Magnetic Loop Antenna
- A Magnetic Loop Antenna for SWL by KR1ST
- Mag. Loop antenna links PY1AHD
- kd5udb's loop Projects
- Small Loop Antennas - AA5TB
- G4KKI Bill - Loops
- PA3CQR Magnetic loop antenna homepage
- W2BRI Loops - Magnetic Loop Antennas, Magnetic Loop Info, How to Build A Magnetic Loop
- http://www.laud.no/la6nca/loop/
- http://www.ve3gk.com/newmagnetic.htm
- My 80 Meter Magnetic Loop
- The K9FD Receiving Loop
- KD5UDB loop
- DJ1QQ loop w/glass cap
- Variations on a Pstlowany
- Petlowany Antenna
- wd8puoloop.pdf
- Dave's Loop Antenna Page
- Magnetic Loop FAQ
- skywire loop.pdf
- Skywire Loop Antenna - full wave loop radio antenna
- Horizontal Wire Loops
- HO-HO-HOHPLS
- Notes on Cloud Burners
- NVIS: From the Backyard to Professional Installations
- Horizontal Heights and Sound Bites
- Loop Antennas and Calculator
- DF5KF loop
- DXpedition Antennas for Salt Water Locations: A focus on 20m antennas
- AntennaTop e-magazine
- W4RNL - cebik
TAK Petlowany Principle
- ZMV Spiral Antenna
- The TAK-tenna Review -Restricted and Limited Space HF Antennas - A Review of the New TAK-tenna - WA2TAK
- http://hometown.aol.com/n0lx/spirals.html
- Welcome to Worldradio Online!
- Petlowany Three-Band Burner Antenna by dxzone.com
- TAK-tenna
- A Modified Petlowany Antenna
- Petlowany Principle - TAK antenna
Baluns
- BUILD AN AIR WOUND 1:1 CHOKE BALUN FOR HF - THE UGLY BALUN!
- QRP Balun - AA5TB
- Homemade HF Antenna Balun by AA5TB.
- qrp_4-1_guanella-type_balun
- N5ESE's 1:1 Current Balun
- broadband_antenna_matching.pdf
RX-antennas
- G3XGC 160m 6' rx loop schematic.jpg
- 15 Foot Relay Tuned Noise Reducing Vertical Antenna.pdf (application/pdf Object)
- Amplified 1 And 4 Meter Square Untuned Loop Antennas.pdf (application/pdf Object)
lightening-arresters
- Impulse Suppresors | Arrestors
- I.C.E Coaxial Suppressor Product Reviews
- I.C.E Coaxial Suppressor product reviews by real people like you. Only at eHam.net. - eHam.net is a Web site dedicated to ham radio (amateur radio).
- PolyPhaser Corporation - Welcome
Coax
- Coax Calculator
- Coax Calculator
- RF Cafe - Coaxial Cable Specifications Cables Chart
Feedline
- ladderline added sections
ant-vendors
- Davis RF - The Price Leader in Times LMR, Andrews Heliax and other cables
- Davis rf has been supplying coax, cable and
wire for amateur radio applications for decades. All components for
wire antennas and cable for amateur radio available for immediate
shipment.
- Pro Stud Mnts
- ZeroFive Antennas
- T.G.M. Communications - Mini-Quad
- Sommer Antennas
- Radio Works
- Hamstick - Ham Antennas for Amateur Radio
- DX Engineering, your source for complete antennas and professional grade antenna parts!
- GLA INDEX Page
- Terlin OUTbacker Manufactures of High Quality Antennas and Accessories
- Isotron Antennas - Low Profile Limited and Restricted Space Antennas for HF
- Force 12 Sigma Verticals
- Wellbrook Communications Product Data Summary
- The Screwdriver.com
- New-Tronics Antenna Home Page
- Hi-Q Antennas
- ++ DIAMOND ANTENNA CORPORATION ++
- the Carolina Cyclone mobile antennas
- W6UP
- W6UP
- Lakeview Company - hamsticks
- CushCraft
- CB radio antenna brackets and mounts
- LDG Electronics
HexBeam
- An Hexagonal Beam in 3 hours
- Hexagonal beam construction
- Classic Hexbeam
- Describes practical performance measurements on a Hexbeam
- Hexbeam by K4KIO
- Steps for building a directional hexbeam for five amateur radio HF bands.
- HEX-BEAM -- Welcome to Traffie Technology
- The Hex-Beam Antenna - Small, High Performance Beams - Miniaturized Controlled Field Antennas - Fixed and Portable
- W1GQL's Homebrew Hexbeam Do-it-Yourself Page
- General Broadband Hex Beam
- General introduction to guidelines for construction of the G3TXQ broadband hex beam.
- MAX-GAIN SYSTEMS, INC. : Fiberglass Price List
- Fiberglass tube, fiberglass rod, round and square, retail and wholesale, any quantity! Our tubes are designed to 'sleeve' inside adjacent sizes for the ultimate in useful possibilities!
Amplifier
- AN758300Sharp.pdf
- qx9ohsawa.pdf
- Communication Concepts, Inc.
- High Power Solid State Amplifier
- Ameritron
- Worth-More Electronics
- Tuning loading RF amplifiers tune PA tank adjustments
Dentron GLA-1000
- dentron gla-1000 - Google Search
- Dentron GLA-1000 (plain), B & C Amplifiers
- Dentron GLA-1000 C Amplifier
- Dentron GLA-1000 (plain), B & C Amplifiers
ARRL
- QST Binaries
- ARRLWeb: ARRL Home Page
- ARRLWeb: ARRL Audio News
- ARRLWeb: ARRL Ad Hoc HF Digital Committee
- ARRLWeb: Net Directory Search
- ARRLWeb: VE resources
- ARRL Central Division: Director's Page (Main)
- ARRLWeb: ARRL WI Section
- ARRLWeb: W1AW Code Practice Files
- Amateur Extra Class License Practice Exam
- ARRL Homebrew Challenge
- ARRL Technical Information Page Menu
- retrieve.cgi (application/pdf Object)
ARRL-FCC proposals
- ARRL HFDIGITAL Committee Dissenting Recommendation
- The Email robots are coming to RTTY!
Blogs-Forums-Lists
- RFI Info Page
- KE9V.net Blog
- by Jeff Davis, KE9V
- http://frrl.net Blog
- The low band, VHF, UHF and microwave chats (by ON4KST)
- The ON4KST low band, 50 MHz, 144 MHz and microwave chats.
- Amateur (Ham) Radio Chat Rooms on IRC and The Internet
- A comprehensive list of Amateur (Ham) Radio chat rooms on both IRC chat and The Internet.
- EMRFD KA7EXM DOT NET
- Elecraft, Reflections of Reflector Index Page
- The Elecraft Archives
- MARC: Elecraft Mailing list ARChives
- NETXQRP Info Page
- Ham-Linux Info Page
- HBQRP Info Page
- HomeBrew Info Page
- QRP Info Page
- QRP-L Info Page
- qrp-l.org
- QRPLINUX-L Info Page
- SWL Info Page
- mailman.qth.net Mailing Lists
- Debian-HAMs
Callsigns
- ARRLWeb: International Call-Sign Prefix Allocations
- Buckmaster's World Wide HamCall(tm) Server
- Callsign maps
- The QRZ Callsign Database
- WM7D dot Net
- NCVEC - 1x1 Special Event Call Signs
Contests
- Alaska_50th_Award
- ARRLWeb: ARRL Sections
- Third Annual 80m Autumn Sprint
- TARA's PSK Rumble Rumble Page
- Pesky Texan Armadillo Chase - CONTEST DETAILS
- QRP Contest Calendar
- 8-Day Contest Calendar
- http://w2agn.net/
- ZeroBeat Online Calendar: March - 2007
- 2006 ARRL November Sweepstakes (Phone) Line Scores
CW
- 2006 K9YA Telegraph Index
- AA9PW Morse Code Practice
- Abbreviations
- ARRLWeb: W1AW Code Practice Files
- ARRLWeb: W1AW cw practice
- CW / Morse Code World-Wide - NW7US
- CW Links
- ECN Home page
- K3WWP's CW Abbreviations
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW Procedure Signals
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW Q Signals
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW QN Signals
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW RST System
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's Links - CW Information
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K6DBG - CW really is a language!
- KCØMAX Code Practice
- learn morse code
- pa3bwk's ultimate morse code web site
- RadioTelegraphy
- Signal Corps Printing Method
- Telegraphy
- The Koch Method of CW learning - NW7US
- MRP40 Morse Code Decoder
- CWCom
- MRX CW Comm Status
- Koch CW Trainer Version 9
- LEARNING THE CODE
- Morse Code Podcasts
- DOC-269012A1.pdf (application/pdf Object)
- ARRLWeb: Can Computers Copy Code?
- English styled straight key usage
- Staight key styles The Art & Skill of Radio-Telegraphy - Ch 9 Part I: Sending
CW-Keys
- Adjusting Morse Keys and Paddles
- Instructions for setting up keys and paddles
- Ameco Products
- American Morse Equipment
- AZSorpion Paddle Information Page
- Begali Keys/Paddles
- Bencher Inc.
- Bencher offers the best in Amateur Radio & Photographic Supplies.
- Hi-Mound Morse Keys and Paddles
- KENT Morse Telegraph Keys And Paddles
- Milestone Technologies and Morse Express
- Home page for Milestone Technologies, Inc., and Morse Express
- Telegraph Keys Iambic Keyer Paddles Morse Code Keys
- Manufacturer of small portable telegraph keys, keyer paddles, and electronic keyer products.
- Vibroplex
Digital
- DigitalModes
- The Complete Bozo's Guide to HF JT65A
- WSJT - How to use the JT65A mode on HF - The complete Bozo's Guide
- pskmail » home
- Digital Frequences
- ARRLWeb: ARRL Band Plans
computer interfaces
- The DigiPan Interface
- SignaLink USB Interface
- ea3blq/k2d Digital Interface PCB
- Switchbox for Soundcard Digital Modes
- Serial to USB
- CTR-BlueLync
- Sound Card interface for digital modes
- Sect. 3 - Sound Card Interface Manual
- Dr. Oliver Welp: Amateur Radio Soundblaster Software Collection
- WM2U's Soundcard Interfacing Schemes
- Interfaces.pdf ham-radio.ch
- PSK31 Interface
- lpt_keying_adapter.pdf
psk31
-
- PSK signal modeling
- The Official PSK31 WWW Homepage
- A "PSK31 PRIMER" FOR THE NEW PSK USER, homepage
- WM2U's PSK31 Page
- ERNIE'S PSK31 PAGE- AMATEUR RADIO AND MORE.
- Hook it Up
- DigiPan - Digital Panoramic Tuning for PSK31
- PSKMeter Page
- LinPsk a PSK31 Program for Linux
- SWL psk31
- PSK-20 Hands-On
Software Defined Radio
- SDR-IQ Receiver
- PERSEUS SDR US DISTRIBUTOR SSB ELECTRONIC USA
- Perseus SDR Home Page
- N9VV Amateur Radio Website
- N9VV Amateur Radio Website
- QuickSilver
- Free Css Template
- Tips on eliminating pops/crackles while recording/playing back using your E-MU card
- Sound Card Tests
- yu1lm.qrpradio.com sdr
- yu1lm.qrpradio.com
- ERLINK-SR HOME
SDR-Software
- powersdr-sr40
- SDR Software
- SDRadio, a Software Defined Radio
- WU2X PowerSDR
- Linrad home page
- Software defined radio : Software: Software Defined Radio
- SDR, Software defined radios products
- JavAPRS:Live TNC Data
- About Digital Ham Radio:main:Frame
- KD4GOK's MEMPHIS Live SSTV Cam
- wulfden::APRSQuery
- NB6Z's "digital ham radio"
Digital Radio Mondiale
- DRM: Digital Radio Mondiale
- DRM Software Radio Project - Home Page
- DRM: Digital Radio Mondiale
Whisper
- WSPR_mode.pdf (application/pdf Object)
- K3UK's Quick Guide to WSPR Revised July 26 2008. - Ham Radio Deluxe Support Forums
- K3UK's Quick Guide to WSPR Revised July 26 2008. The Lounge
- WSJT_User_600.pdf (application/pdf Object)
- WSPRnet.org | Weak Signal Propagation Reporter Network
- http://physics.princeton.edu/pulsar/K1JT/WSPR_Announcement.TXT
- WSJT Home Page
- [digitalradio] Quick tips for using MEPT/WSPR
- Sounds of the HF Digital Radio Modes - mpg
- WB8NUT's Amateur Radio Digital Modes Information and Download Page
- Information on Amateur Radio New Digital Modes like PSK31, Hellschreiber, RTTY, MFSK, MT63, Packet, Pactor and Amtor
DX
- BCDX Club Home Page
- The LOW BAND chat (by ON4KST) Web 2.0 version
- QRPSPPOTS
- SIXTY METER INFORMATION WEBSITE!
- DX Summit QRP
- DX Summit
- The DXSpider User Manual v1.51
- The DXSpider User Filtering Primer v1.0
- DXATLAS - DXINFOS
- Site d'info 11M
- 425DXNews - The Italian weekly bulletin for serious DXers
- AB5K Cluster AR-Technology - Home
- AR-Cluster Filters
- ARRLWeb: W1AW DX Bulletins for 2006
- DX Clusters online
- DXers.Info by Epiphany Zone LLC - Home
- DX Northwest
- DXPORTAL. HAM Radio Search Engine. Usefull web sites for amateur radio
- DXWatch - amateur radio dx webcluster - dx spots filter service
- Hard-Core-DX.com - Probably the best DX site in the world
- Internet Ham Atlas by dxzone.com
- IRC #CQDX Chat Channel
- Islands on the Air - Latest References
- NØHR - DXpedition Map
- The DXZone.com - Ham Radio guide
- The OPDX Bulletin - Internet Edition
Elecraft
- Elecraft, Reflections of Reflector Index Page
- The Elecraft Archives
- ECN Home page
K2-psk31
- PSK31_2.PDF (application/pdf Object)
- Modifications to the KSB2 to Improve IMD in PSK31 Transmissions
- Setting the K2 Filters for PSK31
- K2 and PKS31 Questions and Answers
- W3FPR Switchbox for Soundcard Digital Modes
- Digital Interface PCB
- K3 Build 12/1/2008
Emer. Comm.
- ARRLWeb: Public Service Communications Manual
- Student Logon
- IS195 Basic Incident Command System - EMI Independent Study Program
- http://training.fema.gov/EMIWeb/is195.htm
- hurricanefrequencies.com
- The Hurricane Watch Net
Equiptment
- MFJ 259 antenna analyzer calibration, problems, and service warnings
- Technical resource and information on MFJ 259 antenna analyzer
- Modifications for the Kenwood TS-450
- A page with Mods for various Kenwood amatuer radios
- PD5DP's Manuals Website
- PD5DP
- mods.dk – manuals
- Modify your amateur radio to get better performance, or more functions. This site is for HAMs there want all the best from his radioamateur equipment. Visit you will not be disappointed.
- KENWOOD TS-940 PAGE
- Equipment Mods
- http://bama.edebris.com/manuals/
- books
- Modifications for the Kenwood TS-430
- TS-430
- Trojan Battery Company - Marine
- RigPix Database - Main
- QTH.COM Ham Radio Classified Ads - Swap amateur radio HF VHF equipment buy sell trade on line
- Free Ham Radio Classified Ads from QTH.COM. The biggest and best ham radio classifieds on the web! Buy, sell, trade HF and VHF equipment, towers, antennas, rotators and more!
FCC
- FCC Support: Submit a Help Request Online
- FCC: Amateur Radio Service
General
- Memorial to G3YCC - QRP SITE
- QRP Low Power Amateur Radio Information
- Your Remote S-Meter, Amateur Radio Information, and Design Software
- Ham-Shack.com : Table Of Contents
- Random Access Labs Web Site
- DXing.com Web Resource for shortwave, scanner and ham radio hobbyists.
- Bookmarks for kl7r
- Ham Radio Home Page - QTH.COM by KA9FOX! Classified swap ads for amateur radio, ham radio and more
- The Zerobeat QRP Page
Ground
- Amateur Radio Underground Radials
- WC7I provides basic and intermediate information about Amateur Radio buried radials.
- StrikeStarUS
- WWLL Network Global Lightning Locations
- Vaisala Thunderstorm Online Application Portal
- Common misconceptions about lightning and grounding
- Basics of lightning, explaining voltage gradients, common v. normal mode
- Aspects, components, and damages from lightning
- What keeps lightning from destroying stuff?
- External Grounds, a better place for lightning
- Inductance: why grounding (alone) is never good enough
- Schematics of USCG Auxiliary Station Oceana Radio
- Final conclusions, samples, links, and credits
- Installing Ground Rods the Easy Way.
- Station Lightning Protection
- Ground Problems
- Amateur Radio Grounding
- tech-notes-ground-radials.pdf
- tech-notes-ground-radials-2.pdf
Ham-Link Pages
- Amateur Radio Internet Page
- Best Ham Radio Links - NØHR.com
- wt6g - Ham Radio Links
- SM6UQP - HAM links
- AC6V's Master Index To DX & Ham Radio
- Amateur Radio World-Wide - NW7US
- KC5WA Links
HomeBrew
General HB sites
- Ashhar Farhan's Home Page
- MJRainey - Amateur Radio
- leon heller
- Harry's Homebrew Homepages
- AC6V - Ham Radio Homebrew
- AC6V - Ham Radio QRP
- AmQRP "Homebrewer" Magazine
- QRP & Homebrewing Links
- QRP & SWL Homebuilder
- QRP and homebrew by DL2YEO
- N0SS homebrew info
- QRP and homebrew by DL2YEO
- QRP & SWL Homebuilder
- HOMEBREW CORNER
- K0JD's Ham Homebrew Site!
- Hans' Radios - G0UPL
- 7N3WVM's Home Page for Homebrewers
- Site of Lloyd Butler VK5BR
- K7QO's Home Page
- YU1LM-homebrew
- HBR Receiver Web Site
- Prtactical Circuit Analysis
- G3SEK's Amateur Radio Technical Notebook - Best of 'In Practice'
- W7ZOI tech notes
- Circuit Sage: Analog/RF Design Resources
- bboard
- K8IQY Manhattan Madness
- WA7MLH Page 1
- JH5ESM Contents
- Index of /brew_text
- K1KPR preselectors
- RASON Projects Page
- kc5wa's pdf files page
- Chris Trask, Analog/RF/Microwave Design Consultant
- Designer of analog, RF, and
microwave circuitry, including receivers, transmitters, transceivers,
amplifiers, oscillators, mixers, filters, antennas, and other circuitry
associated with radio and wireless communications.
- Measuring Capacitance: Methods (fwd)
amps-hf
- 10W Linear HF Amplifier
- PLB-15.pdf (application/pdf Object)
- 20W HF Linear Power Amplifier
- HPSDR - PennyWhistle
- High Performance Software Defined Radio design group, open source design, uses FPGA
- Classes of Amplifier Operation
- Describes characteristics of Class A, B, AB and C amplifier operation.
- Amplifier biasing
- What makes a good solid-state HF amp?
- communication-concepts HF Amplifiers
- HFProjects.com Store (Powered by CubeCart)
- HFProjects.com - K5OOR Projects
- TEN WATT LINEAR AMPLIFIER by SM0VPO
- Ramsey Electronics
- QRP Amplifier by dxzone.com
ANT-Tuners
- T-Network Tuner Simulation
- A Simple and Flexible Tuner for QRP
- This article describes a simple antenna tuner designed for QRP use.
- Portable ATU
- ZMatch Tuners
audio
- DIY AUDIO PROJECTS - Do-It-Yourself Hi-Fi for Audiophiles
- DIY Audio Projects documents several DIY HiFi audio projects for Audiophiles. Projects include vacuum tube amplifiers, gainclones (chip amps), mosfet amps, preamplifiers, loudspeakers and cables.
- Designing Bipolar Transistor Audio PreAmps
- Steve's Radio Page Audio Break Out Box
- Willamette AF Filter Mod - Ripples in the Ether
circuits
- Reverse polarity protection
- Electronics Circuits
- S Meter Circuit
coils
- 8809017.pdf (application/pdf Object)
- Balun and Transformer Core Selection
- Inductors
- L/C Resonance Calculator
- Inductance Calculator
- Approximate Air Coil Inductance Calculator
- Coil Designer
Data
- reactance-notes.pdf
- GR Reactance Chart.pdf
- Reactance_paper.pdf (application/pdf Object)
- Amidon Associates Inc. - Ferrite cores
- toroids.info/
- T25-2,T25-2,T25-6,T30-2,T30-6,T37-2,T37-6,T37-7,T44-2,T44-6,T50-1,T50-2,T50-6,T50-7,T50-10 ,T68-1,T68-2,T68-6,T68-7,T68-10,T80-2,T80-6,T106-2,T106-6,T130-0,T130-2,T130-6,T130-17,T200-2,T200-6 ,FT23-43,FT37-43,FT37-61,FT50-43,FT50-61,FT82-43,FT114-43,FT140-43,FT240-43,FT240-61 ,BN-43-2402,BN-43-302,BN-43-202,BN-61-202,BN-43-3312
- mini Ring Core Calculator
- Software for amateur radio English
- AlliedData.pdf (application/pdf Object)
- Attenuator Calculator - Microwave Encyclopedia - MicroWaves101.com
- CONVCHARTdBm.pdf
- dbm-volts-watts.pdf
- Toroid Calculator
- GQRP Club - Technical Pages
- Utilities : V<sub>RMS</sub> / dBm / dBu / dBV calculator
- vk2zay's Calculators
Filters
- DSP Filters software
- RF Avenue - Passive Filter Design, Circuits, & Tools -- LC Filter Design Software, Books, Book Reviews, ...
- Directory of RF & microwave resources for designers of digital wireless communication systems. Includes tutorials, theory, circuit design, products, software, books, book reviews, and more.
- WB6DHW - BPF's
Mixers
Mixers diode H-mode
- Ham Radio Online -
- SA612AN as DC Receiver front-end
- H-Mode mixer
Op-Amps
- Opamp Design
- The Douglas Self Site, audio, opamps.
Parts
- Current limiting Resistor calculator for leds
- Current limiting Resistor calculator for leds
- DataSheet Archives
- tailoringpotentionometers.pdf
- Crystal oscillator - Wikipedia, the free encyclopedia
- The Secret Life of Pots
- Toroid Cross Reference
Capacitors
- BEAM Pieces -- Capacitor part codes
- TF Capacitors Part Numbering System
- Capacitors
- The Electronics Club
- Capacitors Tutorial
- Capacitors Tutorial, capacitance, Electronic Tutorials, projects you can build including High Voltage.
Mini-Circuits-SBL-1
- SM 5 BSZ - Very low cost radio using two standard mixers.
- ADE-1.pdf (application/pdf Object)
- Parts Search Supplyframe.com
NE602
- 602 mixer
- The NE602 is a low-power VHF monolithic double-balanced mixer
with input amplifier, on-board oscillator, and voltage regulator. It is
intended for high performance, low power communication systems. The
guaranteed parameters of the SA602A make this device particularly well
suited for cellular radio applications. The mixer is a Gilbert cell
multiplier configuration which typically provides 18dB of gain at
45MHz. The oscillator will operate to 200MHz. It can be configured as a
crystal oscillator, a tuned tank oscillator, or a buffer for an
external LO. For higher frequencies the LO input may be externally
driven. The noise figure at 45MHz is typically less than 5dB. The gain,
intercept performance, low-power and noise characteristics make the
SA602A a superior choice for high-performance battery operated
- 602 mixer data sheet
Tubes
- Jeff Duntemann's Homebrew Radio Gallery
- A photo gallery of home-built radio gear by Jeff Duntemann K7JPD. Most gear shown uses tubes, though some is solid state.
- Video Library The New Jersey Antique Radio Club - NJARC.ORG
- tube_links.pdf
- Fun With Tubes
- This is a site for anyone interested in antique electronics.
- Space Charge Tubes: Tube Projects Without Lethal Voltage!
- Frank's electron Tube Data sheets
- NJ7P Tube Database Search
- Tube Manual
- 555 timer
- The 555 timer is one of the most remarkable integrated
circuits ever developed. It comes in a single or dual package and even
low power cmos versions exist - ICM7555. Common part numbers are LM555,
NE555, LM556, NE556. The 555 timer consists of two voltage comparators,
a bi-stable flip flop, a discharge transistor, and a resistor divider
network. The 555 timer is ideal for astable free running oscillators as
- FindChips.com Search
- Cross Reference-NTE Electronics
- NXP Semiconductors - Standard ICs
- datasheets.org.uk - Electronic Component Datasheets
- Datasheet catalog for integrated circuits, diodes, triacs, and other semiconductors, view
- electronic data-sheets
- This is a linking list to some of the most common electonic
data sheets I use. It includes data sheets and application notes for
examples of single channel VHF FM narrowband receiver, ten channel
frequency synthesized cordless telephone receiver, 256 channel
frequency synthesized two meter amateur band receiver, single chip
weatherband receiver and MC3362 application as a tunable weather band
- http://www.bgs.nu/sdw/
- HFE4000 family Datasheets
- Basic Electronic Tutorials On AC, DC, Semiconductor, and Digital Theory. Also Including Message Boards, Electronic Projects, Component Datasheets, Electronic Puzzles and Experiments.
- 74HC/HCT4538 data sheet
- 74HC/HCT4046 data sheet
- TDA2003 data sheet
- diodes
- Diodes are semiconductor devices which might be described as
passing current in one direction only. The latter part of that
statement applies equally to vacuum tube diodes. Diodes however are far
- ZL2PD Hunts for Varicap Diodes
- Varicap diodes (varactors)
- DBL Balanced H-mode Mixer for HF
- PLL Frequency Synthesiser family MC145152 to MC145158
- Embedded Processor Control
- The SMD Code Book
- SMD marking codes
- The Solid-State Components Online Database - SMD-Code-Index - SMD Code Reference
pcboards
Eagle PCB info
- Eagle creating a new part
- Eagle Schematics howto
- Eagle PCB layout tutorial
- Extreme Manhattan by K3PEG
- Using LTSpice With FreePCB
- Easy PCB (Printed Circuit Board) Fabrication, Using Laser Printer Toner Transfer, with a Household Clothes Iron and Glossy Paper; DIY at Home; Making, Homemade, Copper, Etch, Etching, Pattern, Electronic
- Printed Circuit Fabrication Manual
- PCB Processing Manual - pcb prototyping, pcb fabrication, printed circuit board prototyping, printed circuit board fabrication, pcb drilling, pcb routing, pcb milling, pcb etching, mechanical etching, dry-film lamination, through hole plating
- A Trio of Software Programs for the Intrepid Tubephile: GlassWare's Tube CAD, SE Amp, and Tube manual By Dick Olsher
- Saltwater etch process
pics
- Ham-Pic Resource Page
- Elmer 160 - "PIC-EL" Project Board
projects
- Xtal sets to Sideband
- Lossless Feedback Amplifiers.pdf
- electronic projects and electronics tutorials
- An electronics tutorial radio design site, to learn about electronics discussing the basics and principles of design then the construction of electronic projects.
Attenuators
- STEP_ATTEN_1.pdf
- -20dbcoupler
- attenuator
- NT7S - 80db step attenuator
- Tap_Attenuator_Simulation_20051107.pdf (application/pdf Object)
- N5ESE's 40 dB Tap Attenuator (20060812)
Audio
- NEScaf_200803.pdf
- Inexpensive Audio Diversity Spatial Reception
- EASY Q-MULTIPLIER
- Designing JFET Transistor Audio PreAmps
- Designing Op Amp IC Audio PreAmps
Cases
- Copper Plating and Etching Altoids Tins
- Electrolytically Etching and Copper Plating Altoid Tins
- Homebrew2005-06.pdf (application/pdf Object)
IF
- hycas-apps
- hycas-pcb
- hycasIFamp_200712_qst.pdf
keyer-kits
- N0XAS Ham Gadgets
- Morse Code Keyer (2)
Q-multiplier
- EASY Q-MULTIPLIER
- Q-MULTIPLIER by SM0VPO
RCVRs
- http://indianakits.com/csrx01/
-
- A High-Performance, Single Signal, Direct Conversion Receiver with DSP Filtering
- GCR2 Pro
- Simple Direct Conversion Receiver
- QRP, Homebrew amateur radio receivers, transmitters & transceivers. QRP related
ElectroLuminessence RX
- BBQ0206.PDF (application/pdf Object)
- Duncan Watson's SWL Receiver
- Electroluminescent Receiver
- Amateur Radio Receivers
- Gary Rondeau's SWL Receiver
Regenerative rcvr
- NJQRP Regen Schematic
- regenerative radio receivers
- WN5Y's Amateur Radio Receivers
- Listen to AMATEUR RADIO Signals
- SO Radio System
- Beginner and Experimenter's Receiver Kit-WN5Y
- Amateur Radio Receivers -WN5Y
- Ham Radio Online -
- 020910qex036.pdf (application/pdf Object)
- LED Mosfet Receiver
- VE7CA HBR200
- HDR-2005 Receiver Workbench (Home)
- mark2
- 10 MHz WWV Receiver 2005
- Simple Direct Conversion Receiver
- QRP, Homebrew amateur radio receivers, transmitters & transceivers. QRP related
RegenRX
- Reg SWL RX
- regen
- Projects of W5JH
RF
- ZL2PD Simple HF RF Signal Generator
- SWR Indicator/Bridge Builders Manual (ver 1)
- Amateur Radio Station NT7S -
- EASY Field Strength Meter
- digital swr meter
- N5ESE's Classic RF Probe
SDR-IQ
- Z10000 Buffer Amp
- Z10010 Bandpass Filter
- 9MHz_IF.pdf (application/pdf Object)
Spectrum Analyser
- spectrum_an
- 9809037.pdf (application/pdf Object)
- 9808035.pdf (application/pdf Object)
- Spectrum Analyzer project. (W6/PA0ZN )
- Homebrew Amateur Radio Spectrum Analyzer
- Spectrum Analyser based on W7ZOI design
- Homebrew spectrum analyser
SoftRock
- SoftRock Doc
- SoftRock Lite
- RXTXv61_Platine_oben_1.jpg (JPEG Image, 1600x1200 pixels) - Scaled (54%)
- RXTXv61_Platine_unten_1.jpg (JPEG Image, 1600x1200 pixels) - Scaled (54%)
- RXTXv61_Testaufbau_01.gif (GIF Image, 1000x750 pixels) - Scaled (86%)
- RXTXv61_Testaufbau_02.gif (GIF Image, 1000x750 pixels) - Scaled (86%)
TennaDipper
- TennaDipper-pt1.pdf
- Tenna Dipper Kit
- TennaDipper-pt2.pdf
TR Switch
- T/R Switch
- A KEY OPERATED T/R CIRCUIT
- http://www.zerobeat.net/g3ycc/mute.htm
- N5ESE's Outboard T/R Switch (20070118)
XCVRs
- QRP Kits
- Outdoor QRP Adventure
- The 7-11: A QRP 17-Meter Transceiver
- Ongoing construction details for a QRP transceiver
Pixie II
- RixPix -- Rick's Pixie Transceiver
- GCR2 TX
- K8IQY 2N2/30 Transceiver
- 20m-xcvr-NT7S 2007 FDIM Potluck Contest.pdf
SW40+ elmer101
- http://epic.mcmaster.ca/~elmer101/
- Elmer 101: The SW+40
- Elmer 101 FAQ
- Lessons
- http://epic.mcmaster.ca/~elmer101/
- MegaPig - MultiPig+
- 2N2-40 K8IQY
elecraft
KX1
- Assembly of KX1 #1727
K1
K2
- K2 - SWL out of band RX performance
- Elecraft Innovative Electronic Kits
- K2 manual rev F.pdf (application/pdf Object)
- LA3ZA Unofficial Guide to K2 Modifications
- Elecraft Spare Parts and Mod Kits
- W3FPR WebPage
- W3FPR Switchbox for Soundcard Digital Modes
- ea3blq/k2d Digital Interface PCB
Alignment
- STEP 3 Run CAL FIL
- N6KR Method for setting the 4 MHz reference oscillator
- k2_filters_using_gram_v5r17.pdf (application/pdf Object)
- Setting the K2 Filters for PSK31
- W3PFR Setting the K2 dial calibration
- Setting the K2 dial calibration
- K2 RX Filter adjustment/Mod Articles Mod
- Suggested method for aligning CW Filters in K2
- STEP 1 Setting K2 Ref Osc
- Elecraft e-mail Reflector Searchable
- Mod_To_Improve_K2_CW_Filter_Rejection.pdf (application/pdf Object)
- Alternative Wiring for the K2's AF GAIN Control
- K2Cheat Sheet
- K2 Refererence Card
KNB2
- E740003 KNB2 Rev D.pdf (application/pdf Object)
- E740003E_KNB2_Errata_Rev_D-1.pdf (application/pdf Object)
K2-psk-mod
- Modifications to the KSB2 to Improve IMD in PSK31 Transmissions
- Improving The Elecraft K2
- K2 RX Sensitivity
- K2 Cheap 'n Dirty Signal Tracing.pdf (application/pdf Object)
- Elecraft Kit PCB Scans
- sidetone-mod_tf3ma.html
- Measuring The Elecraft K2 SSB TX/RX Audio Response
K3
- Elecraft K3 FAQ (temporary site)
norcal
- AustinNC2030Presentation.pdf (application/pdf Object)
wilderness-sierra-102
- Elmer 102: The Wilderness Sierra
- N5ESE-built TenTec 1315 / 1330 / 1340 Mods [20050820]
BITX
- BITX
- JUMA-TX1 DDS controlled CW transmitter
MMR-40
- MMR40 CW/SSB Transceiver - QRPKits
- QRP Kits.
- ARRL_MMR40.html
G-Project
- Diamond Drill Bits For Stone And Glass Drilling
- Quality discount diamond cylinder, twisted and core drill bits.
- NT7S_TEST_PROCEDURES.pdf
- NT7S_TestSchematic.pdf
- Amateur Radio Station NT7S -
- Flickr: The qrp-l.org Pool
- qrp-l Group Project BOM.pdf (application/pdf Object)
- qrp-l Group Project Mainboard Layout.pdf (application/pdf Object)
- qrp-l Group Project VFO Layout.pdf (application/pdf Object)
- EVLA.html
- Toroids, Parts, Kits, Toroid King, QRP Erector Set
- N0XAS Ham Gadgets
- Dan's Small Parts and Kits
- HomeBrewers Hobby Page
- Ham Radio Kits W5USJ jackson harbor
- Crystal ladder filters
- digital dial freq counter
- N5ESE Ham Radio (20051202)
- Visit N5ESE's virtual shack and see what's being homebrewed (ex-N5FC)
- VE7CA -> Homebrew
- 12VDC power supply
- N1HFX RASON Projects Page
- How to make a Lipoly battery pack
- HomeBrewed Test Equiptment (measurement)
- DFD2 instruction manual
SDR
- SoftRock 40
- A Blazing Fast Intro to Software Defined Radio
- SDR-Power.pdf
- SDR-Kits
- SDR - Software Defined Radio - SWR - Software Radio
- The I2PHD weaksignals pages
- weaksignals.com
- HamSDR - Amateur Radio & Software Defined Radio
- Exchange information among ham radio & amateur radio operators interested in Software Defined Radio & Equipment
- WB5RVZ Softrock SDR Homepage
- Softrock SR Lite RX V6.2 40/30m Builders' Notes
- SoftRock and other SDR Radios SoftRockRadio.org - DSPRadio.org - | "Elegance through simplicity of design ".
- ARRLWeb: Software Defined Radio
- FlexRadio Systems - Software Defined Radios: Home
- SoftRock-40 Kit Resource Page
- KØAWU Software Defined Receiver
- http://www.hpsdr.com/
- scope pics - Soft Rock 40
- M0KGK SDR soundcards page
- Improving the noise floor of a Delta44 A/D converter
- JA7TDO
- Sound Test
- PHOENIX - Hi Performance SDR Wiki
- cliftonlaboratories - Softrock Lite 6.2
surfacemount
- Curious Inventor - Surface Mount Soldering
- HowTo Guides, Tools, Parts, Kits for DIY'ers - Make your own technology.
- Surface Mount Soldering Techniques
- Using surface mount parts
- Building with Surface Mount Technology (SMT)
- 1: Hot-Air Pencil
- /SDR/SMT/SMT.html
- Soldering Tools and Techniques
- Homebrew SMT Soldering Electric Skillet Method
SWR-meter
- http://www.jasonhsu.com/swrwatt.html
- Understanding Sensitivity
- ARRL Homebrew Challenge
- drmxtals.html - SW stations
VFO's - VXO - DDS
- WA6OTP vfo/pto
- PTO_Simplified_Mechanicals
DDS
- QEX DDS VFO
- pa2ohh-EXPERIMENTAL DDS BASED ON A MICROCONTROLLER
- IQPro DDS IQ VFO Craig Johnson/AA0ZZ
- Analog Devices: Design Tools: Direct Digital Synthesis Web
- DL5MGD-AD9951
- I0CG - AD9951 DDS PAGE
- dds_eng.pdf (application/pdf Object)
- DDS-60 Kit from the AmQRP
- AD9912 SFDR tests.pdf
VFO
- Huff & Puff Oscillator Stabilisers
- HF VFO
- FLL VFO
- Solid-Stating a Classic VFO
VXO
- pvxopage
- iOskk 3xtal 10mhz vxo
- Pulling Crystals - VXO
out of production DDS vfo projects
- Micro908 "DDS Amp"
- DDS Daughtercard
- Serial DDS Controller
- "Melt-Solder" DDS Controller
- qexvfo.pdf (application/pdf Object)
- Oscillators
Linux-ham
- The W9YA Ham POE>
- SDR-Shell for IF Applications
- Geek Garage
- W1HKJ Software
- baudline signal analyzer - FFT spectrogram
Live CD Linux/BSD
- The W9YA shackstick Ham POE
HamfreeBSD
- Ham Radio on FreeBSD
- FreshPorts -- hamradio
- freshports - new ports, applications
- Index of /hamfreesbie
- http://people.freebsd.org/~db/freesbie_notes.txt
- AI9NL HamShack CD
- AFU Knoppix / AR Knoppix / afu-knoppix.de / ar-knoppix.de
- flpuppy
- Linux.com | Digipup: A Linux live CD for amateur radio
Mobile
- Welcome to KØBG's Web Site
- Everything you need to know about amateur radio mobile operation
News
- Planet Ham Radio Amateur Blogs
- Planet Ham is a website designed to aggregate blogs produced by Amateur Radio enthusiasts.
- RSGB - News - Extra
- Amateur Radio Newsline ™ News Desk
- Amateur Radio Newsline™ Home Page
- R.A.I.N. Report / Rain Report about Amateur / Ham Radio with Hap Holly, KC9RP
nets
- HF NET FREQUENCYS
- Ham Radio HF Nets
- Amateur Radio
- NETS TO YOU
- The 3905 Century Club Worked All States and Awards Net
- 3905 Century Club, Inc.
- Printable CW Nets | KI8DU CW Homepage
- This site is dedicated to the Preservation of Morse Code.
Here you will find information on CW Net schedules,CW Nets,
Operations and other misc.
- SKCC Operating Frequencies
- Mailing Lists @ QTH.Net
- http://www.qsl.net/adventistara/nets.html
- KV5R's Traffic Handler Training
- 7290 Amateur Radio Traffic Net
- Texas Traffic Net Schedule
operating
- K3UK Sked Page
- Radio Sounds by dxzone.com
- City Distance Tool - Find the distance between 2 cities
- Distance Lookup
- Distance Lookup Page
- EI8IC's Contesting Information, Amateur Radio Prefix Maps, Flags, IOTA Island Lists.
- EI8IC - The Home of Amateur Radio Maps, the Global Overlay Mapper, the North American Overlay Mapper, a variety of Free Ham Maps for Dxers and DXing, plus many other Ham Radio Contesting, IOTA, Newbie, and Ham Operator Resources.
- WASmap_Color.pdf
- Amateur radio satellites
- This page is listing the Amateur radio satellites. Select any Amateur radio satellite listed to learn additional details, perform live tracking or see satellite's passes visible from your location
- yahoo-PropNET-Online : PropNET-Online
- PropNET-Online: PropNET-Online
- yahoo-30meterPSKGroup : 30 meter PSK (10 mhz digital)
- 30meterPSKGroup: 30 meter PSK (10 mhz digital)
- Amateur Radio 30m Digital Spots
- Propnet 1hr 30m map
- CATCHes : PropNET CATCHes
- CATCHes: PropNET CATCHes
- PropNET
- Amateur Radio Frequency Allocations
- ARRLWeb: ARRL Band Plans
- http://www.bandplans.com/index.php?band=All
- New_HF_Band_Plan.pdf
- Hambands_color.pdf (application/pdf Object)
- The U.S.A ATV Stations/Repeaters Listing
- The World ATV Stations/Repeaters Listing.
- QRP Frequencies of Interest
- HF Digital Frequencies
- Considerate Operator's Frequency Guide
- NCDXF/IARU International Beacon Project
- Islands on the Air - Latest References
- Amateur Radio Repeater database - Updated daily
- CB CHANNEL TO FREQUENCY GUIDE
- n3epa - QRP Contest Calendar
- 8-Day Contest Calendar
- The QRZ Callsign Database
- W5 Incoming QSL Bureau
- Q-Signals
- QRP(Low Power Amateur Radio)
- K3WWP's CW RST System
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW Abbreviations
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW Q Signals
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW QN Signals
- K3WWP's activities in ham radio, including CW, QRP, contesting, homebrewing, award hunting, and DXing
- K3WWP's CW Procedure Signals
- GridSquare Conversion
- Miles per Watt Copasetic Flow: The New QSL Mapper
- Conversion of Power Watts to dBm - Range 1 microwatt to 100 Watts or -30 dBm to +50 dBm - Filtronetics
- Conversion of Power Watts to dBm - Range 1 microwatt to 100 Watts or -30 dBm to +50 dBm. Filtronetics Electrical Frequency Components Kansas City, Missouri MO.
- N9SSA MPW Calculator V1.3
- Dxers.Info does Google Earth!
- W8IRC - The QRZ Bot
- No More Splatter!
- Login - Google Maps APRS
- OpenAPRS - Google Maps APRS
- OpenAPRS is a site dedicated to bringing you APRS tracking data, weather and USGS earthquake information.
Online-listening
- S-Meter Site Receivers
- Contains information about communications receivers you can listen to at the S-Meter site.
- 3819 Homepage
- WebSDR on 40m and 80m in JO32KF
Power Supplys
- LM317 / LM338 / LM350 Voltage and Current Regulator Calculators
- A Java based voltage calculator for the LM317 / LM338 / LM350 3 Terminal Adjustable Regulators.
- Motel Power Supply
Battery Power
- ElectriFly TRITON PRODUCT REVIEW
- R/C Battery Clinic
- Batteries and QRP - Intro
- Welcome to Battery University
- 12V Sealed lead Acid Battery Calculator
- Hydrocaps - Battery gas recombiners
- http://www.ibiblio.org/pub/academic/environment/alternative-energy/energy-resources/homepower-magazine/archives/11/11pg37.txt
- Parallel or Serial for your Battery Bank?
Solar Power
- FC's Solar Circuits
- This page has schematics for
a number of solar powered electronic circuits.
- DAS1 - 12 Volt 10 Amp Dark Activated Switch
- CirKits Main Page
- CirKits Links to Alternative Energy Web Sites
- 200W ATX PC POWER SUPPLY
- AN120.pdf (application/pdf Object)
- an overview of switched mode power supplies or SMPS
- The switched mode power supplies or SMPS owes its origins back
to the days when valve or tube car radios needed the large HT supply,
e.g. 150V DC to be generated from an automobile power system of
nominally 12V DC. In those days the switched mode power supply took the
- power supply design
- A tutorial on power supply design for amateur radio and hobbyists.
- Power supply Design - part 2
- Power supply Design - part 3
- A tutorial on power supply design using dedicated I.C. regulation. High current variable power supplies are discussed.
- Power supply Design - part 4
- A tutorial on a variable power supply for use as a bench power supply.
- Basic UPS Power Supply
- Homebrew2005-06.pdf (application/pdf Object)
- Welcome to Powerwerx Super Powergate 40S Backup Power Switching and Charging System
- DC Power System for the Amateur Radio Station
- Switching Regulator Basics
Propagation
- KN4LF Solar Space Weather And Geomagnetic Data In Graphic And Image Format
- This site is dedicated to providing timely daily solar space weather and geomagnetic data in graphic and image format.
- KB7TBT Space Weather and Ham Radio Propagation Page
- The KB7TBT Space WeatherPage, Space Weather Page, Used for propagation, ham radio
- SOLARCYCLE 24.com / Solar Cycle 24 / Spaceweather / Amateur Radio VHF Aurora Website.
General-Propagation sites
- DXer.Com - Propagation & Solar Flux
Understanding Propagation
- VE7SL PROPAGATION HINTS
- Radio Propagation Indicators
- KN4LF 160 Meter Radio Propagation Theory Notes
- This site is dedicated to providing layman level explanations of seemingly mysterious 160 meter propagation occurrences.
- Propagation
- Propagation
- Propagation Primer 101
- Pedersen Ray Doppler Plots
- Solar info on hard-core-dx.com -- probably the best DX site in the world
- http://fpqrp.com/flux.htm
- Propagation for Newbies
- HF Propagation tutorial
- ARRLWeb: Propagation
Propagation Software
- Review of Propagation prediction programs
- VOACAP-based amateur radio propagation programs
- VOACAP Quick Guide: HF Propagation Prediction and Ionospheric Communications Analysis
- This site is dedicated to VOACAP (Voice of America Coverage Analysis Program for HF Propagation Prediction and Ionospheric Communications Analysis), an improved and corrected version of IONCAP, retaining all of the theory as put forth by John Lloyd, George Haydon, Donald Lucas and Larry Teters in the 1975-1985 time-frame with modifications which were suggested/approved by George Lane, Donald Lucas, George Haydon and A. D. Spaulding (a world authority on HF radio noise predictions).
- DX Monitor - Map - HamCap Interface
- Software to Monitor DX Summit
- VOACAP Quick Guide: HamCAP User's Guide
- VOACAP, High-Frequency Ionospheric Communications Analysis and Prediction
- VOACAP Quick Guide: Home
- VOACAP, High-Frequency Ionospheric Communications Analysis and Prediction
- VOA cap presentation on Propagation
- Solar Terrestrial Activity Report
- The Solar Terrestrial Activity Report contains
solar and geomagnetic data relevant to the reception of distant radio stations.
Solar flux (10.7 cm radio flux), number of sunspots, planetary A index and
various other solar related parameters are updated daily, as are comments and
forecasts based on the data.
- Space Weather Resources
- http://www.swpc.noaa.gov/ftpdir/latest/wwv.txt
Charts
- SolarSoft Latest Events
- Great Circle - Radio Shortest Path Map at DXers.Info http://maps.dxers.info/?b=&time=
- DXing.info :: Propagation
- WM7D's Solar Resource Page
- http://kl7r.ham-radio.ch/propagation.html
- IPS - HF Systems
- SolarSoft Archives
- Near-Real-Time Maps of Ionospheric X-Ray Absorption
- D-Region Absorption Prediction
- Near-Real-Time MUF Map
- Near-Real-Time E-Layer Critical Frequency Map
- Planetary K Index
- Solar Terrestrial Activity Report
- Great Circle Mapper
- Complete Sun and Moon Data for One Day
VHF
- DF5AI.NET - Amateur Radio Propagation Studies
- NW7US - HAM Radio on LF, MW, HF, VHF, and higher
- http://www.dk0wcy.de/magneto/magnet.htm
- PropNET
QRP
- AE5X
- AmQRP "Homebrewer" Magazine
- Elecraft Innovative Electronic Kits
- K3WWP's Home - QRP - CW
- NAQCC Introduction
- NAQCC Introduction
- QRP & Homebrewing Links
- QRP & SWL Homebuilder
- QRP and homebrew by DL2YEO
- QRPp International Radio Club ( QRPp, QRP, CW, SSB, PSK31, Tiny-Tornado, Pixie, Micro-80 )
- ScQRPion_Home_Page
- Thai QRP HAM Club
- WB6KWT review of QRP kits
- QRPp International Radio Club ( QRPp, QRP, CW, SSB, PSK31, Tiny-Tornado, Pixie, Micro-80 )
QRP-Vendors
- Amateur Radio Receivers - WN5Y
- AmQRP Kits
- ATS3A
- Elecraft Innovative Electronic Kits
- Hendricks QRP Kits - QRPKits
- Kanga US Home Page
- MFJEnterprises.Com
- NorCal-40
- QRPShop-International - Welcome to QRPproject, devoted to QRP and homebrew in Amateur Radio
- Small Wonder Labs
- SoftRock-40 Kit Resource Page
- SWL HiMites
- Ten-Tec
- Wilderness Radio
- MegaPig - MultiPig+
- JacksonHarbor Ham Radio Kits
QSLs
- Frameset
- Rusprint QSL Cards & Ham Shack Accessories
RFI
- RFI/EMI Links Page
-
- VE3HLS RF Noise Home Page
- RFI Services - RFI Noise locating tips
- RFI Services noise locating tips
- Niose BPL Points
- CommonModeChokesW1HIS2006Apr06.pdf (application/pdf Object)
- K9YC Publications
- Ferrites-Ham.pdf (application/pdf Object)
- RFI-Ham.pdf
Software Ham
- Procat Cool for Windows - Zerobeat
- Software Library
- RoMac Software - Sound Card Manager
- Visual Analyser 10.0.5 NE
- A powerful software implementing a Spectrum Analyzer, Oscilloscope, Frequency meter, Distorsiometer, Volt meter and more... plus complete D/A conversion
- Memorial to G4FGQ - QRP SITE Free Radio Computer Programs
- QRP Low Power Amateur Radio Information
- mini Ring Core Calculator
- Software for amateur radio English
ant-software
- Antenna Design Information and Software
- SOFTWARE ANTENNAS - XE1BEF PAGE
- MMANA Antenna Modeling Program
- Dr Bingo's KM5KG Pages
- Short, Coil-Loaded, Ground-Mounted, Vertical or Slanting Antennas
- hfta.pdf (application/pdf Object)
- Modeling Aids
Linux-Ham Software
- CQRLOG
- The world's largest development and download repository of Open Source code and applications
- kf8gr software.html
- KF8GR Ham Radio and Linux Homepage
- AFU Knoppix
- AI9NL - Harv's Hamshack Hack
- Linrad home page
- Linux & Ham Radio: The Not-Very-Technical Linux Ham Radio Page
- Linux Hamradio Application and Utilities Homepage: New/Updated software
- LiNUX.COM - Introduction
- LiNUX.COM - The Packet Radio Protocols and Linux
- gMFSK - A Gnome Multimode HF Terminal
- N0NB's Linux Introduction for Hams
- Welcome to N9NU.NET - Ham Radio, Music, Aviation and Linux 4 Hams
- N9NU - Linux
- LINUX SOFTWARE FOR HAM RADIO
- Qucs project: Quite Universal Circuit Simulator
- Linux.com | Fldigi and amateur radio on Linux
- baudline (spectrogram for linux)
- About Rigserve
- Ham Radio Control Libraries
- list linux ham pkgs
- tlf » home
- YFKlog - a ham radio logbook written in Perl
Circuit Sims
- Multisim SPICE Program Download | Design Tools | Design Center | Analog Devices
- .title {
font-size: 16px;
font-weight: bold;
}
Multisim SPICE Simulation Program Download
NI Multisim™ Analog Devices® Edition
- NI Multisim - Products and Services - National Instruments
- National Instruments Multisim software combines intuitive capture with powerful simulation to quickly, easily, and efficiently design and validate circuits.
- Download SIMetrix and SIMetrix/SIMPLIS Intro
- SIMetrix is an affordable SPICE analog circuit simulation package and schematic editor for Windows. A free version of the software may be downloaded from this site
- Linear - SwitcherCAD / LTSpice Download and Registration
- Qucs project: Quite Universal Circuit Simulator
- DL4YHF's Audio Spectrum Analyser
- Spectrum Laboratory for Soundcard with Waterfall and FFT.
- /kf8gr/
- DXLab Applications
- AppCAD
- ExpressPCB - Free PCB layout software - Low cost circuit boards - Top quality PCB manufacturing
- free downloads of software
- G4ILO's Shack
- SSS Software Menu Page
- The QSSTV Handbook
- Top Level Index For RDFT Information
- VERON: Software sites for the Radio Amateur
- W3KM`s Free 32-bit HF/VHF/UHF/Microwave/Rover Contest Loggers
- AADE Filter Design and Analysis
- G3VFP Software For Amateur Radio
- Koch CW Trainer Version 9
- [[[[[ Tonne Software homepage ]]]]]
- Software for Amateur Radio
- SV1CNS - AMATEUR SOFTWARE
- Software for amateurs
- ham radio software collection:: Fox Delta
- TubePad 5.0
- AE4JY software
- metalab.unc.edu/pub/linux/apps/ham
SWL-Shortwave
- Clear Channel AM Radio
- NASWA WWW Shortwave Listening Guide
- Radio Intelligencer (RadioIntel.com)
- Prime Time Shortwave - Your guide for English shortwave broadcasts
SWL-Stations
- WBCQ The Planet - Worldwide International Shortwave - Home
- WBCQ The Planet - Worldwide International Shortwave - Free speech radio
- K1KPR - swl mods
- Understanding Shortwave