[Milsurplus] RAK AND RAL RAB landed at SMECC anyone got a good link list?

[Richard]

Yes, 472 to 479 kc - my typo.

400 cycle ac isn't a big problem.  400 cycle inverters are commonly 
available for small money because no-one wants them.

My TBW runs on 120 volts 800 cycles, and I use an 800-1 aircraft 
inverter, 28 volts dc to 120 ac at 800 cycles.  It's also known as a 
Screaming-Mimi due to core magneto-striction.  I measured 90dB at three 
feet, about the same as a subway train running through the shack, so I 
built a noise-reducing box which drops it to 50 dB, conversation level.  
Depending where you stand you hear nothing, or a distant whine, which 
adds ambiance to the shack and impresses visitors.

I too greatly miss maritime MF Morse, rotten fists, MCW, and all.  A guy 
in Stoneham MA is licensed as WNE for 500 and 472 kc, and was running 
the North Atlantic weather forecast all Winter at 8 pm at about 30 wpm, 
which I enjoyed.  Usually it was 40 foot seas, gale winds with freezing 
spray, and I'm glad I never went to sea.  He's off for the Summer, or 
maybe burned-out.

Richard, AA1P

On 07/21/2016 06:31 PM, Mike Morrow wrote:
> Richard wrote:
>
>> ...we are momentarily expecting a new ham band 402 to 409 kc.
> That will be 472 to 479 kHz, 630 meters.
>
>> (I have a TBW ready to go)
> My best VLF/LF/MF receiver is a R-1134B/WRR-3 (14 to 600 kHz, all vacuum tubes).  That's the same model that was on almost all USN surface vessels in the 1960s to 1980s that was used for, among other things, keeping watch on 500 kHz.  We had one on board SSBN-629, although submarines were not required to watch 500 kHz...and it was not used for the normal submarine VLF reception.
>
> I have a T-588/ART-33 that was used on some USCG aircraft to provide MF Morse maritime band transmission.  It is crystal-controlled for all the standard merchant vessel MF Morse channels from 410 to 535 kHz.  It is local control only, probably about 40 watts output, 400 Hz AC power (unfortunately).  It uses a remote-operated trailing-wire antenna.  I don't know what receiver the USCG used with the AN/ART-33.  They could have done reasonably well with a R-23A/ARC-5.  Before I found the AN/ART-33, I was unaware that any USCG aircraft had MF Morse capability.
>
> I preferred listening to the maritime MF Morse band more than to any other frequency segment.  I miss it greatly...especially 500 kHz at night.
>
> Mike / KK5F
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