Utility Planet is the official blog for the column of the same name in The Spectrum Monitor. It replaces Utility World in the discontinued Monitoring Times magazine. Utilities are all VLF/LF/MF/HF (and sometimes low-band VHF) radio communications except broadcasting, CB, and non-emergency amateur. If you understood the last sentence, you know enough to read this blog.
Thursday, June 11, 2015
Space and Turkey for VOA Radiogram, June 13-14
From Kim Andrew Elliott:
In last weekend’s
experiment comparing Scottie DX SSTV and MFSK32 images, the MFSK32
images generally were clearer, but the Scottie DX images usually had
less slant, probably because of the slant-correction
capabilities of the decoding software. I will, eventually, compile a
gallery showing several comparisons.
[That was the experience here. MMSSTV did correct a slight slant, but it had more noise in the image. -Hugh]
There will be no
SSTV in this weekend’s program, but if you are interested in more SSTV
tests, let me know, and we can include them in future shows.
program will include one item in Olivia 32-2000. This will be
interesting if you experience poor reception conditions because of
propagation, local noise, or a less-than-top-quality radio.
In Fldigi, Olivia 32-2000 requires a custom mode selection: Op Mode
> Olivia > Custom: Tones: 32, Bandwidth: 2000. I provide 20
seconds for you to make this change. However, Olivia 32-2000
does have an RSID, so it will probably do all the work for you.
Here is the lineup for VOA Radiogram, program 115, 13-14 June 2015, all in MFSK32 except where noted:
1:36 Program preview
2:47 New NASA photos of dwarf planet*
7:22 Mars landing device parachute test fails*
14:14 Olivia 32-2000: Glitch causes ISS to change orbit
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 (EDT Saturday 10:30
pm) on 9925 kHz, via Germany. (Decode this, then retune quickly to VOA
on 5745 kHz.) Reports for KBC to Eric: firstname.lastname@example.org .
AndFlmsg. If you have an Android device, this reminder that the beta version of AndFlmsg, Fldigi for Android, is available here: