HFU HF Underground
Loggings => Utility => Topic started by: R4002 on September 07, 2017, 0302 UTC
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SHARES HF SSB radio system Hurricane Net - SHARES Region 4.
Log start: 0255 UTC - 7 SEPT 2017
Frequency: 4458 kHz 4.458 MHz
Mode: USB - SSB voice with tone bursts followed by data transmissions
Possible nighttime frequency for SHARES? I know they have several 5 and 6 MHz frequencies but this is the first time I've heard them on 4MHz. 4458 kHz USB is also apparently a USAF frequency per Internet searches. Its also in the same area as several Civil Air Patrol 4 MHz band frequencies used by their regional HF nets.
AFA4LR (net control) NCS962 and several other stations passing traffic and checking in to SHARES Region 4 Hurricane Net at 0255 UTC Sept 7th, 2017.
Tone + data burst at 0258 UTC, followed by another (different) tone burst and data transmission. Net control station appears to be sending digital traffic with some sort of selective calling prefix?
AFA4LR calling for additional stations at 0259 UTC. Nothing heard afterwords. CODAR or another sort of "swoop swoop swoop" QRM is pretty annoying, peaking at S5.
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AFA4LR back on the air at 0303 UTC, same transmissions as before (requesting local/regional check ins, then requesting any station wishing to check in).
Another frequency to keep an eye on with another hurricane heading towards the USA.
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Now (2239-2240 UTC on Sept 13th, 2017) hearing similar traffic on 4636 kHz USB. References to "SHARES" and "free net" with next control having similar format alphanumeric callsign / ID.
CORRECTION: 4636 USB is a Civil Air Patrol frequency, it appears that one of the SHARES network stations went up to 4636 kHz to do a radio check with the CAP net control station (White Peak 4).