pic cw keyer

2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.

40 meter delta loop - M0MCX - Pictures and details of a wire delta loop antenna for 40 meters band

70cm yagi antennas - Pictures and plans to build 70 cm yagi antennas

Homebrew Balun Case - Balun case construction, tipically to host toroid cores. Size of case depends on power to handle. By DL5DBM

Small Tuned Loop Antenna - Picture and reference links for STL Small tumed loops antennas by DJ3TZ

Multiband vertical antenna - An article with pictures on a 80-10 mt vertical antenna with an Unbalanced-Unbalanced balun in italian

KO4BB's Tower Building Project - Picture and description of a home made antenna tower

HS0ZEE Antenna Tower Installation - Pictures and history of HS0ZEE 37 meters antenna tower installation with a cubical quad on the top of this tall radio mast.

HF Antenna and Tower Raising - Raising a new tower and a pair of large beam antennas pictures and notes

WB6WUW Amature Radio Tower Installation - Wb6wuw's pictorial guide to the erection of free-standing towers starting with excavation and ending with antenna installation

P40E CQ WW CW - 2002 CQ WW CW antennas and shack

IZ1GJH/B 10 meter beacon - Active on 28.321,47 MHz in CW and Qrss3

JH5LUZ Blog - 1296Mhz EME Station from Japan, includes eme amplifiers pictures

CE2GVM Radio Club Gaviotas Chile - Radio Club Gaviotas, Vina del Mar, Region Valparaiso, Chile, CE2GVM, radioaficionados de Vina del Mar, Diploma RC Gaviotas, telecomunicaciones, licencia, radioaficionados CE, radioaficionados XQ, Novicio, General, Superior, CW, DX, radio clubes

Photos of amplifiers - Dave made pictures of amplifiers

I.N.O.R.C. - Official Site - Official site of the "Italian Naval Old Rhythmers Club", gatehering CW operators from Military Navy and Civil Marine

QSK for the TL-922 and SB-220 mods - Beautifully constructed amplifiers. Unfortunately, are not suited for high speed T-R switching, a necessary attribute for operating AMTOR, QSK-CW, or SSB-VOX modes.

gMFSK - Linux free multimode HF terminal program. Despite the name, gMFSK can send and receive many digital conversational modes typically used by radio amateurs on HF. Supported modes are: MFSK (MFSK16 and MFSK8) RTTY THROB (1, 2 and 4 throbs/sec) PSK31 (BPSK and QPSK) PSK63 MT63 Feldhell

HL1INF RF Amplifiers - Circuits, pictures and data about toroids, tubes and home made power amplifiers

4CX1500 - This is a 4CX1500B grid driven amplifier that is built like a tank. The unit is considerably over designed as can be seen in the pictures documenting the construction

GS35b Amplifier for 50 Mhz - Picturs of my 6 meter Pa with a GS35b

VHF linear amplifier pictures - 4CX250B X2 K2RIW style 2m amplifier

DL5DBM 1KW amplifier for 144 Mhz - Pictures and circuit diagramm to build this power amplifier for 2 meters

Morse Code Beacon Keyer - This circuit stores a single morse code message as bits in an EPROM chip, the message is sent to a relay which can key a CW transmitter.

SP5GJN HF amplifiers & CW Keys - Home made HF power amplifiers and CW Keys & Paddles