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, 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...
Saturday, March 14, 2015

Screen Shot of VOA Radiogram on Android Tablet

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17860 kHz ~1610 UTC Mar 14 2015: (disregard time shown on screen)
Friday, March 13, 2015

Interesting VOA Radiogram for March 14-15

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From Kim Andrew Elliott: Hello friends, Last weekend's tests with audio levels and the "wandering RSIDs" were not es...
Saturday, February 28, 2015

Congratulations to VOA Radiogram on Program #100!

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The VOA Radiogram which airs this weekend is number 100. I have been in a crazy work period and not posting as much stuff to the blog as I s...
Tuesday, February 17, 2015

30 MHz Mystery Deepens

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A few days ago, a very strong beeping noise appeared around 30000.99 kHz.  A previous post to this blog and a YouTube video mentioned this b...
Saturday, February 14, 2015

ALE above 30 MHz?

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Multiple listeners have copied USB ALE on 30000.03 kHz USB (dial/window frequency).  It's always soundings by EN10, a known military cal...
Friday, February 06, 2015

VOA Radiogram for 7-8 Feb 2015

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Hello friends, On last weekend’s program, many attempts by listeners to use Fldigi to decode the CW bonus mode were not successful. I...
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