At 06:50 UTC on November 23, 2017, AMSAT Engineering officially commissioned AO-91 (RadFxSat/Fox-1B). AMSAT Vice-President Engineering Jerry Buxton, N0JY, turned over operation to AMSAT Operations in a QSO on the AO-91 transponder with Mark Hammond, N8MH, of the AMSAT Operations team during the pass over the Eastern United States.
N8MH responded and declared AO-91 open for amateur use!
AO-91 was built as a partnership with Vanderbilt University ISDE and hosts four payloads for the study of radiation effects on commercial off the shelf components. The satellite was launched on November 18, 2017 as part of the ELaNa XIV mission, secondary payloads aboard the Delta II rocket that carried the Joint Polar Satellite System (JPSS-1) satellite to orbit. AO-91 also features the Fox-1 style FM U/v repeater with an uplink on 435.250 MHz (67.0 Hz CTCSS) and a downlink on 145.960 MHz. Satellite and experiment telemetry are downlinked via the “DUV” subaudible telemetry stream and can be decoded with the FoxTelem software.
It’s been a tradition for the WPA Chapter to do a subpedition to the Requin on the day before Thanksgiving each year. However it must be a bit different this year because the sub won’t be available then.
So this year it will be the day AFTER Thanksgiving (Friday November 24).
Mike (KC2EGL) and I(K3WWP) and perhaps a couple other chapter members will arrive at the sub a little before 1500Z and start operating as soon as we get set up – hopefully at 1500Z or a few minutes after at the latest.
The Requin has only one antenna and hence only one band at a time can be used. We’ll use the following schedule for the first 90 minutes:
After that we’ll go with the band(s) that seem the most active. We’ll stay there until activity dies out or the sub closes, whichever comes first. We’ll use the sub call of NY3EC (NAQCC # 8483). QSL via the info on QRZ for NY3EC. We’ll try to keep the QSOs short so everyone who wants to work the sub gets a chance.
I hope that covers it all. If not, email naqcc33 -at- windstream -dot- net with the
subject “USS Requin Question”.
Make your own transceiver with a Dorji DRA818U or DRA818V
These modules have been around for a while, but they fascinate me. For only US $9.46 you get a fully functional 1 Watt transceiver working on either VHF or UHF. The last letter in the model number tells you which version it is. The modules are available on eBay see link below.
In 1944, this short subject film was produced by the Jam Handy Organization and sponsored by the Hallicrafters Company. It shows the construction of the SCR-299 and dramatizes its use during World War II. This is a B&W documentary presenting a look at the manufacturing and use of the (now defunct) Hallicrafters Company’s SCR-299 “mobile communications unit.”