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- Antennas > 20M
- Technical Reference > 3D Printed Projects
- Ham Radio > Clubs > North America > USA > Alabama
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U.S. Government's military handbook on grounding in pdf format -
The cobweb antenna it is basically a 5 band antenna comprising of 5 full half wave dipoles for each band - between 10 meters and 20 meters, the antenna is also resonant on 6M and can be modeled even for VHF frequencies. -
A simple dual band VHF UHF jpole antenna Projects by Dale Kubichek -
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This improved multiband trap dipole introduces a new trap design and a change in trap location. The antenna features double-coaxial-cable-wound traps having lower reactance and a higher quality factor (Q) than earlier coax-cable traps by W8NX -
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Ham Log book is written in MS Access. A good logging program that is very easy to use by Kevin Rea K6REA -
HF Ham Radio antennas for apartments and methods of shortening antennas -
Schematics, mechanical drawings and picture of a Receiving loop antenna by N5ESE - N5FC -
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Callsign lookup. Late FCC information. Information about the Hamdata callbook/logbook cd -
The Double Bazooka Dipole is a very efficient single band antenna which is very quite, and does not require the use of a balun. This antenna consists of coax (RG58) or other 50 ohm type with the shield split at the center and the feedline attached to the open ends -
Multiband Center-Loaded Off-Center-Fed Dipole (CL-OCFD) antenna that work on 80m 40m 30m 20m 15m 10m. The Center-Loaded Off-Center-Fed Dipole (CL-OCFD) antenna, developed by Serge Stroobandt, offers a versatile solution for amateur radio enthusiasts, covering multiple HF bands (80, 40, 30, 20, 15, and 10 meters) without the need for an antenna tuner. This innovative design utilizes a capacitor for resonance on the 80-meter band and a resistor to manage static charges. The CL-OCFD enhances bandwidth and simplifies operation, making it a significant advancement on OCF Dipole design. -
4CX250B X2 K2RIW style 2m amplifier -
A delta loop wire antenna plan for the 7 MHz band (40 meters) that is quick to setup and work with -
A full line of repeaters, modules to build repeaters, and accessories. -
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Ham Radio Audio Stream: listen live to German amateur radio repeaters. -
Harv's Hamshack Hack. A remaster of the KNOPPIX distro for Amateur Radio Operators (Hams) who have no prior experience with Linux. Provides a complete OS, software for hobby, web, and word tasks. All contained in an .iso file ready to burn to CD. -
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A freeware program to dig out weak signals buried in noise, functionally similar to the excellent FFTDSP of AF9Y, but with the added bonus of real time audio filtering of the incoming signals. Just point and click with the mouse, and the selected signal will stand out from the QRM and noise. -
Suitable antenna for owners of an IC706 or FT817, 857 and other HF portable transceivers. You can an be QRV in a few minutes on all ham-bands from 80m to 6m and even on 2m by PA0FBK -
Reducing noise to your antenna can gain your aerial performance, learn how. -
Info on this discontinued HF Transceiver -
D-RATS is a small application designed to provide data communication capabilities with D-STAR radios. It supports text chatting, file transfers, position reporting and mapping, and much more! It is written in Python using GTK to run on multiple platforms. -
Merging Internet technology with Amateur Radio holds great promise. This article discusses the authors experiences in putting several Internet Remote Base stations on the air. By Stan Schretter, W4MQ, Brad Wyatt, K6WR, and Keith Lamonica, W7DXX -
Freeware amateur radio transceiver control program tested with IC-756 Pro. -
A project by G3SYC of a log periodic antenna for 6 meters band -
Here is a simple and easy to build antenna in a Delta Loop configeration that should make 10 and 12 meters lots more fun if you have a limited space situation o -
Build a 10 Meter Technician Class Dipole antenna. Get on 10 Meters fast with this basic 10 Meter Dipole project by hamuniverse -
A simple dipole built for two-band operation can be used for portable use and operate 20 and 40 meter bands -
Freeware logbook program with many features, includes CAT system and database for yaesu Icom and kenwood rtx. This program is currently discontinued by the author who developed another ham log program for windows. -
Modifications schematics and manuals -
Radio Mods, Technical Data, where to Purchase Equipment Amateur Repeater Coordination. All you need to build a repeater -
Ham Radio Maidenhead Grid Square Locator Geocoding with Google Maps by by HA8TKS -
Repeater system in the New York metro area Service provided by W2LIE.NET -
Perfect ground vs. poor ground. What is the difference? How does the ground influence the DX-gain? -
Design and build your own Hf thru Vhf antennas.Contains pictures, plans, parts list of very popular ham antennas along with experimental types. -
This listing was put together by ve7vdx on the USENET rec.radio.amateur.space, and is updated weekly there -
A half sloper antenna for 160 meter band Italian translation of a WD8DSB article appeared in a QST issue during 1998. This article presents a **Reduced-Size Half Sloper Antenna for 160 Meters**, designed for amateur radio operators with limited space. By utilizing a 40-foot tower or a tree, you can build an efficient antenna that slopes down, achieving a 2:1 SWR bandwidth of 120 kHz. This innovative design allows for effective communication on the "Top Band," making it ideal for winter DXing. -
MMVARI is a multi-Mode SoundCard Ham (Amateur) Radio program for receiving and transmitting the RTTY-PSK-FSK-MFSK modes. The program was written to experiment with the efficiency of transmitting Japanese and East Asian languages (HL/BV/BY) using the VARICODE -
Excellent guide to using ferrite cores for interference suppression. Understanding and Solving RF Interference and Noise Problems by Jim Brown K9YC Audio Systems Group, Inc. PDF File -
This is the antenna for those who want to get on HF effectively, and haven't too much space or cash to throw around -
K0JD's home construction projects, featuring the R2/T2 modules by KK7B -
The G3TPW Cobwebb antenna covers five bands, 14 - 28 mhz, including the WARC bands -
Solar Flux reports, Current Alerts and Warnings from NOAA, 27 day forcast from NOAA, charts reflecting the past 7 years Solar cycle summary charts from NOAA -
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17 Meter 3 element TA33 junior mono band yagi antenna conversion project by K6TC