[MilCom] NASA 809

[Ken]

Ok those are Air Traffic Control frequencies.  I think when the ER 2 
stages out of a particular military base, likely they are using the Base 
Operations (dispatcher) frequency.  I know when the U2's use to fly 
transit thru Westover KCEF they always used the Base Ops frequency for 
coordination in & out.  The chase vehicle actually was on the tower UHF 
frequency.
Ken


On 2/6/2020 1:21 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.
>
>