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VOA Radiogram, 29-30 August 2015: MFSK image at 1500 Hz, then 2000 Hz

VOA Radiogram, 29-30 August 2015: MFSK image at 1500 Hz, then 2000 Hz
This weekend’s VOA Radiogram will include an experiment suggested by Mark in the UK.  Mark notices that interference to MFSK images comes from RF noise that is concentrated in the lower audio frequencies. He wants to know if images might be clearer if they are transmitted at a higher audio frequency.

Because of a few extra minutes in this weekend’s program, the third image will be transmitted a second time, at a center frequency of 2000 Hz.

Here is the lineup for VOA Radiogram, program 126, 29-30 August 2015, all in MFSK32 except where noted:

1:30  Program preview
2:45  Strife reduces pollution in parts of Middle East*
9:03  Diminished marine biodiversity*
16:10  Plastic debris in the Pacific Ocean*
24:18  MFSK32 at 2000 Hz: Same image*
26:37  MFSK32 at 1500 Hz: Closing announcements*
28:23  Olivia 64-2000: Transmission schedule

* with image

Please send reception reports to radiogram@voanews.com.

VOA Radiogram transmission schedule
(all days and times UTC):
Sat 0930-1000 5745 kHz
Sat 1600-1630 17870 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina.

The Mighty KBC will transmit a minute of MFSK64 Sunday at 0230 UTC (Saturday 10:30 pm EDT) on 9925 kHz, via Germany. Reports for the KBC transmission to Eric: themightykbc (at) gmail.com .

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