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The LF activity and experimentations

The LF activity and experimentations
    I have re-erected the mast at the house end and reinstalled my inverted-L Marconi, so am back on the air again
post 21 Apr 2025



Antenna 136KHz Links

70



Power Amplifier for 136kHz 1kW
The design is somehow up-side-down. It is because the power FETs are mounted on the heat-sink which is on the top of the box

TX 136.000 Khz QRSS
Antenna ombrello per 136/475 khz

136 kHz Transmitter JUMA TX 136
JUMA TX136 is a digitally controlled CW transmitter for 136 kHz (2200 meter) amateur radio band. The transmitter is available as a component kit which inludes all the electrical and mechanical componets

136 kHz
UK Radio Amateurs received permission to operate on the new 136kHz band (135.7-137.8kHz) in February 1998

136kHz Activity
Canadian amateurs have full access to the 2200m and the to 630m bands without the need for special operating permission


Psion ham software

PSION Greyline Clock PSION Greyline Clock v. 1.0 is a UTC/Local clock showing sunlight/darkness area on the world map

Radioassistance

Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica

SunCalc

SunCalc SunCalc - sunrise, sunset, shadow length, solar eclipse, sun position, sun phase, sun height, sun calculator, sun movement, map, sunlight phases, elevation, Photovoltaic