HFD Radio Station JG2XA, a 200 watt transmitter used by Sugadaira Space Radio Observatory for HF-Doppler observation of ionospheric disturbances, in
Tokyo-Chofu, Japan was heard on 1 June 2011. Although this station broadcasts 24 hours daily, it was monitored from 18.45 to 19.30 UTC
on the frequencies of 5.006 kHz
and 8.006 kHz.
Signal on 5.006 kHz was set in USB mode and received with an overall (SINPO) rating of 14221. Signal strength was poor with transmitter modulation, slight interference from WWVH in Hawaii, moderate fading and QRN. Signal on 8.006 kHz was set in USB mode and received with an overall (SINPO) rating of 25552. Transmission was stronger on this frequency but reception was fair at best with transmitter modulation and QRN.
Station ID was transmitted every 5 minutes by amplitude modulation on a carrier in morse code with the call sign JG2XA. The type of radio signal was H2A (amplitude modulation with coded tones by single side-band). At 18.53 UTC, 19.07 UTC and 19.19 UTC the H2A telemetry was received using a Grundig Satellit 500, Grundig Satellit 750 and Sangean ATS-909.
RECORDED AT 19.19 UTC ON 1 JUNE 2011 USING A GRUNDIG SATELLIT 500
A reception report was submitted by post and email. QSL card is pending verification from JG2XA.
c/o Tomizawa Laboratory
Sugadaira Space Radio Observatory
The University of Electro-Communications