Utility Planet

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, May 28, 2015

Very Interesting VOA Radiogram for 30-31 May

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From Kim Andrew Elliott: Hello friends, It has been several months since we last transmitted slow scan television (SSTV) on VOA Rad...
Friday, May 15, 2015

VOA Radiogram for 16-17 May Includes MT63-2000L

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From Kim Andrew Elliott: Hello friends, After the MT63-2000L bonus mode of program 108, Walt in the UK suggested that we transmit an...
Thursday, May 14, 2015

U.S. Navy-Marine Corps MARS to Phase Out

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The US Navy-Marine Corps branch of the Military Auxiliary Radio System is closing down. This quasi-amateur radio service supported the Navy...

UVB-76/ MDZhB/ S28 Is Back Full Strength

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The question is, "Did it ever really go away?"  Can't answer that.  Band conditions can be pretty wretched this close to the N...

UVB-76/ MDZhB/ S28 Back with Very Low Audio

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On the usual 4625 kHz, the WebSDR does pick up a very weak and raspy audio tone at 250 Hz with a possible harmonic at 500 Hz.  This tone is ...

UVB-76/ MDZhB/ S28 Silent After 2 Voice Messages

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At some point this morning (US Pacific time), perhaps around 1500 UTC, the notorious buzzer station on 4625.0 kHz broadcast two voice messag...
Thursday, April 30, 2015

ShipCom Emergency Net Corrects All Frequencies

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The new U.S. nationwide emergency ALE net has recently corrected all frequencies to conform with international practice. Everything has been...

No News on HFDL System Table

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As of yesterday, ground stations heard by this author were all using System Table 49. However, some are reporting 48 still in use at Guam an...

New VOA Radiogram Frequency for May 2-3

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From Kim Andrew Elliott: Hello friends, This weekend the VOA Radiogram broadcast Saturday at 1600-1630 UTC moves to the new frequency of...
Thursday, April 23, 2015

Santa Cruz Using Database #48

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At 2100 UTC on 23 April, the Santa Cruz HFDL ground station in Bolivia is still using system table #48. Meanwhile, Riverside is working some...

Canarias Still Using HFDL Database #48

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At 2020 UTC in 23 April, the HFDL ground station named Canarias, in the Canary Islands, was still using system table #48.  However, when PC-...

Albrook Still Using System Table #48

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This is getting confusing. HFDL listeners are reporting that the Albrook/Panama City ground station is still on system table #48. This has b...

HFDL System Table #49 Is Current

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For about 24 hours now, Molokai has been pushing out these frequencies: Version 49 Ground Station ID 1 SAN FRANCISCO - CALIFORNIA UTC UNLO...
Wednesday, April 22, 2015

HFDL Database 49 Now Current

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Molokai just switched to #49 and pushed it to an aircraft.  Will post the new PCHFDL file when things settle down.

New HFDL System Table

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Yesterday the HFDL system went to table 48, then to table 49, now possibly back to 48.  More when it settles down.
Friday, April 03, 2015

Frequency Change for VOA Radiogram April 4-5

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From Kim Andrew Elliott: Hello friends, The Saturday 0930-1000 broadcast of VOA Radiogram returns to 5745 kHz as of this weekend (4 ...
Friday, March 27, 2015

ALE Included in 2015 US Armed Forces Day Tests

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Every year, various US military auxiliary (MARS) stations conduct an activity in which they listen for stations on amateur frequencies and t...

Important Experimental 5-mode VOA Radiogram for March 28-29

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VOA Radiogram is having an important test session this week.  Please read these essential instructions if you wish to participate in this te...
Wednesday, March 18, 2015

Vanuatu Cyclone Relief on HF

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From Dallas McKenzie on UDXF : 8.992 (RNZAF) and 8.867 (Auckland Radio)
Tuesday, March 17, 2015

Severe (Kp=8) Geomagnetic Storm in Progress

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From Solarham : March 17th, 2015 is turning out to be a very lucky day for sky watchers. A Severe G4 Level (KP=8) Geomagnetic Storm wa...
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