New linear satellite HO-113 and its issues

UPDATE! The passband center frequency may actually be higher than what is published in the XW-3 user manual and what is shown at 4:19 in this video. See: https://mailman.amsat.org/hyperkitty/...

Watch me work new linear satellite HO-113 / XW-3 and talk about some of its issues so you can learn how to work it successfully despite those issues.

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On December 25th, while most of the space community was excitedly discussing the James Webb Space Telescope (JWST) launch of that morning, the amateur radio satellite community was also anticipating their own new satellite launching that evening.

On December 26th at 03:11 UTC, XW-3 (CAS-9), was launched on a CZ-4C launch vehicle from the Taiyuan Satellite Launch Center in China, piggybacked with the ZY-1(02E) earth observation satellite.

XW-3 was designated HO-113 by AMSAT a few days after launch.

Transponder passband frequency table for printing:

https://www.dropbox.com/s/0tsrxs2l2lz...

XW-3 user manual:
https://www.amsat.org/wordpress/wp-co...

This video was based on this article:

https://spacecomms.wordpress.com/2022...

00:00 My setup
00:48 Demonstration
03:44 Background on HO-113
04:41 weak downlink, high SWR?
06:03 Real reasons for weak downlink
06:48 Deaf receiver
07:28 Noisy passband

73, John Brier KG4AKV