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The Receiver

Antenna location

The antenna is located within JO61DE.

The roof ridgeline is at 12m, with the antenna on a 1m extension.


QTH is 130m (426 ft) above the sea level (ASL).

Antennas

Active antenna "Mini-Whip"
based on PA0RDT design,
with preceding resonant
circuit and a vertical ferrite.

Active antenna "mini-whip" based
on PA0RDT design,
with preceding
FM-IF Filter
and 1m wire.

Converter

Based on an idea by Stefan DK7FC.

Veroboard wiring.


136kHz


500kHz

Converter scheme


Scheme written by DL3ARM


Scheme of MF active antenna

Scheme written by DM4TR.

FZ-02 mechanical filter datasheet look here.

Server Room

(must be cleaned up)

Thanks to Graeme, G6CSY for his english-help.