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.
Radio Programming Chart
|AO-91 Doppler Shift Correction|
|Memory||Your Transmit Frequency(With 67 Hz Tone)||Your Receive Frequency|
|Acquisition of Signal (AOS)||435.240 MHz||145.960 MHz|
|Approaching||435.245 MHz||145.960 MHz|
|Time of Closest Approach (TCA)||435.250 MHz||145.960 MHz|
|Departing||435.255 MHz||145.960 MHz|
|Loss of Signal (LOS)||435.260 MHz||145.960 MHz|
Here is a video on my latest device which I use daily. The RFinder K1 UHF DMR Smartphone. A completely new design, new motherboard, great look and fee... Read more
The Connect Systems CS800/801 (UHF/VHF) is a new value priced DMR mobile radio being offered by Connect Systems, as part of its line-up of budget DMR... Read more
An Isotron Antenna Solves Virtually Any Restricted Space Problem – For example, a 40 Meter Isotron measures only 22 inches x 16 inches x 15 inch... Read more
ncrease your station’s receive performance with new book Receiving Antennas for the Radio Amateur by ARRL author Eric P. Nichols, KL7AJ. Althou... Read more
David Clark DC PRO-X Hybrid ENC Technology in a Supra Aural (Rest-on-Ear) Headset Design Leading edge technology and sleek, supra aural design put t... Read more