homebrew rf attenuator

900 MHz Helical Antenna - Photos and description of a homebrewed 900 Mhz antenna

PAC-12 Antenna - mobile multiband  ^pop - Here’s an award-winning, easy-to-homebrew, multi-band portable vertical antenna designed by long-time antenna aficionado James Bennett, KA5DVS. He’s documented the design and construction plans for a portable antenna that can be built with relatively ordinary components

Harford County Amateur Radio Emergency Communications - Trained amateur radio communicators under ARES, RACES and Skywarn serving Harford County, Maryland communities

MicroSignals - MicroSignals produces a line of RF and IF signal processing components that offer high performance at an exceptional value. To achieve this MicroSignals began with an engineering team that possessed an excellent background in RF Transformer and Balun design.

Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference

Q15X25 - Q15X25 is a packet modem with a KISS/AX.25 interface designed for HF transmission of AX.25 packets and TCP/IP using Automatic Repeat reQuest (ARQ) and forward error correction (FEC).

Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference

Icom IC-706 mods and manuals - Programming interface schematics for Icom: Programming software for Icom IC-706 (Icom IC 706 IC706) : PDF Service Menu for Icom IC-706 (Icom IC 706 IC706) : PDF Service Manual with schematics for Icom IC-706

W8WWV Icom 706MKIIG simple accessories - Acc1 Breakout Box, Fused Power Cable with Accessory Tap, Microphone Breakout Box, CI-V Interface, Using the Auto Sound System for Receiver Audio

PTT line interface for ICOM IC-706 family - Interfacing tips for ICOM IC-706MKII transceiver with a Collins 30L-1 linear amplifier

QST : Kenwood TS-2000 review - Product review & short takes columns from QST magazine

Yaesu FT-817 / FT-100 CAT interface cable - Connect your FT-100 or FT-817 to your pc with this CAT interface cable

Yaesu FT-857 description - The FT-857, the world's smallest HF/VHF/UHF mobile transceiver, provides base station-type performance from an ultra-compact package that's ideal for mobile or external battery portable work.

Homebrew Your Own Separation Kit (857D) - Article by John C. McGrath W9JCM

Icom V8000 mobile amateur transceiver - Universal radio IC-V8000 page includes accessories and photos

Fox Delta Amateur Radio Projects & Kits by VU2FD - Amateur Radio Projects & Kits for homebrewers, includes DDS,sound card interface,programmers, hamcom, frequency counter, RF Power Meter, modems and more.

Eurocom-pro - High performance Software and Devices

QST signalink review - SL-1 - Designed to handle audio signal interfacing as well as transmit/receive switching Reviewed by Steve Ford, WB8IM

The manhatten style nb6m 10 - An Homebrew 10 Meter transceiver

Computer headset interface for icom ic-718 - KR1ST computer headset interface for Icom IC-718

MicroBeacon - The MicroBeacon is the combination of a memory keyer and controllable RF attenuator.

Tuna Tin - A resurrection of some homebrew projects from our vintage years and the NorCal-sponsored project series in tribute to Doug DeMaw, W1FB

The smk-1 on 20m - Taking the venerable SMK-1 design to 20m and adding an RF amp, audio filter, and a TiCK Keyer ... by Wayne McFee, NB6M

Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings

Rf probe - A sensitive RF probe is very useful in a situation where an oscilloscope is not available