[Lowfer] [EXTERNAL]Re: 22.7 kHz TACAMO

[Howell, Laurence J]

Gary - I switched to narrorband VLF overnight but it will be back on wide later tonight AK time - ill see if I can add another rx and leave both up but the 8Khz instance is good till 14KHz but gets insensitive/filtered above that - 

cheers

> On Aug 8, 2019, at 10:12 AM, Garry <k3siw at sbcglobal.net> wrote:
> 
> Kurt,
> 
> I use USB but CW is fine too. The bandwidth has to accommodate signals somewhat wider than the usual VLF stations like NAA on 24 kHz, NLK on 24.8 kHz, etc. TACAMO often has a narrowband precursor transmission at 50 baud RTTY wherein "TACAMO" is repeatedly decoded. The regular frequency-spread transmissions of course are encrypted but recognizable by their frequencies, bandwidth changes, and intermittent nature. They occasionally show up nicely as "blips" on Laurence's grabber (https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fkl7l.com%2FAlaska.html&amp;data=02%7C01%7Cl.howell%40conocophillips.com%7Cf359b1ddb29044385b3508d71c2bef15%7Cb449db5ea80a48eba4c23c88bb78353b%7C0%7C0%7C637008847333592602&amp;sdata=iJ2yiJDGmYRoi9KEAScCR0KlCMahqIf0hvxhSnwa1iE%3D&amp;reserved=0).
> 
> 73, Garry, K3SIW, EN52ta, Elgin, IL
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