SW Radiogram, August 26, 2017

After two weeks of no propagation, today at 16:00 UTC I received, once again, this weekend's Shortwave Radiogram on 9400 kHz AM. The transmission by Radio Miami International used the transmitters of Space Line in Bulgaria.

The digital modes transmitted in the TX audio were MFSK32 and included no less than 10 images showing aircraft of defunct US airlines. 

I used my Icom IC-706 MkII with a dipole antenna tuned for 3.5 and 7.0 MHz and a MFJ-969 antenna tuner. Decoding software is FL-digi under Windows XP. 
Text reception was good, but not 100%, with occasional garbled charaters especially in the first 10 minutes of the transmission due to QRM.

The images were also received successfully with some deterioration due to co-channel voice interference in the case of the PanAm and TWA photos.

I sent an email with my reception reports to radiogram@verizon.net  right after the transmission.

No comments:

Post a Comment