Hits
Longwave Station
The 136kHz signal is filtered by a very narrow 2-stage FET preselector using Q-multiplication feedback to increase the Q factor, its bandwidth is less than 200Hz
post 14 Apr 2026
Antenna 136KHz Links →
LF station info
Transmitter 400W from 2xIRFP250 with LF DDS VFO, Receiver Icom IC-761 with 2x500Hz and 2x250Hz CW filters, TX antenna 135m long wire
Longwave equipment
Old Longwave equipment for 136kHz
Longwave my 136 kHz station
Primary 3.4 mH loading coild 1/3 way up the antenna,this coil improved my ERP signal about 4-5 dB
Longwave Station
The 136kHz signal is filtered by a very narrow 2-stage FET preselector using Q-multiplication feedback to increase the Q factor, its bandwidth is less than 200Hz
LF-Station
69
Transmitter 400W from 2xIRFP250 with LF DDS VFO, Receiver Icom IC-761 with 2x500Hz and 2x250Hz CW filters, TX antenna 135m long wire
Old Longwave equipment for 136kHz
Primary 3.4 mH loading coild 1/3 way up the antenna,this coil improved my ERP signal about 4-5 dB
The 136kHz signal is filtered by a very narrow 2-stage FET preselector using Q-multiplication feedback to increase the Q factor, its bandwidth is less than 200Hz
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
Enigma Component Shop Cable & wire,capacitors, connectors, crystals/oscillators, filters, hardware,kits/modules,test & measurement