[amsat-bb] September 7 Western USA High Altitude Balloon Flight Includes Repeater Package

Jim White jim at coloradosatellite.com
Mon Sep 7 17:22:20 UTC 2015

This launched and there was some chatter I could hear through its 
repeater initially. But in spite of hearing it 40db over on a sat Yagi, 
and using 300W into an EME array on the 2 meter uplink, I have not been 
able to get into it.  It is now (1700Z) hearing a constant stream of 
1200 AFSK packet traffic from somewhere and I no longer hear any voice 

I wonder if this is the correct uplink frequency.


On 9/6/2015 3:20 PM, JoAnne Maenpaa wrote:
> September 7 Western USA High Altitude Balloon Flight Includes Repeater
> Package
> The LSU HASP (High Altitude Student Platform) project expects to make a
> launch attempt in the early morning on Monday September 7 around 7:30 AM MDT
> (UTC - 6).
> This amateur radio payload, featuring a crossband repeater, will be riding a
> 12 million cubic foot zero pressure balloon lifting about 2000 pounds to an
> altitude of about 125,000 ft.
> Jack (W7JLC) and Bryan (W7BNW) from Embry-Riddle Aeronautical University
> have installed a cross-band repeater along with the assortment of science
> payloads.
> Uplink:   145.560 MHZ, 162.2 tone access
> Downlink: 445.525 MHz
> When crossband is not active, APRS on 445.925 MHz
> Launch is from Ft. Sumner NM, and the balloon will drift generally westward.
> When it reaches its float alitude of 125,000 ft the radio footprint will be
> almost 1000 miles in diameter, reaching roughly from Dallas and San Antonio
> to Phoenix and up past Denver to Ft. Collins, and down to Chihuahua in
> Mexico. The flight duration is expected to be 15 to 20 hours.
> The LSU HASP team and W7JLC and W7BNW invite hams to try the repeater. If
> you succeed, please send a report to and want to report back to Jim, N5IB
> via n5ib at juno.com
> See http://laspace.lsu.edu/hasp/ for additional details.
> [ANS thanks Jim, N5IB for the above information]

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