[MilCom] NASA 809

[Michael W Scheel]

Years ago I caught a ER-2 over Michigan's Upper Peninsula. They were 
using a normal ARTCC channel. It happen to match the same frequency used 
by the Kansas City ARTCC in southern Illinois.

On 2020-02-06 12:21 PM, Bryan Herbert wrote:
> 373.1500 MHz is considered their primary freq. If you havent already, youll
> want to add it to your list of NASA freqs.
>
> However, much like the U-2, ER-2s also maintain radio silence during
> missions except to coordinate with ATC. Every ARTCC has a 'TacSpec Use'
> freq for ultra-high altitude aircraft like the ER-2, U-2, and WB-57, down
> your way I believe its 296.7000 MHz.
>
> Not long ago, Larry Van Horn published a list of known 'TacSpec Use' freqs,
> its worth programming them all in. At 60,000 feet, it gives an aircraft a
> radio footprint of over 300 miles.
>
> A couple days ago, I tracked a U-2 flight on 369.9000 MHz as it flew over
> the Grand Canyon, Las Vegas, and Death Valley. It then headed north,
> switched to 296.7000 MHz, and continued on to Northern California. I lost
> it somewhere west of South Lake Tahoe. I can only imagine what all Id hear
> if I had an outdoor antenna.
>
>
-- 
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Michael W Scheel
Davenport Iowa, USA

K0QCS
ARRL - www.arrl.org
Davenport (IA) ARC
Quad-City Scale Modeler Society
D.A.G.O.B.A.H.
USMC Corporal 2531 1972-1976
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