Thanks, Walter!
I recognize your callsign from the AMSAT Brandmeister DMR node, which
I've recently started monitoring.
73, John Brier KG4AKV
On Fri, Jan 7, 2022 at 11:46 PM <
walterh@k5wh.net> wrote:
Great video John.
Thanks for sharing..
Walter/K5WH
-----Original Message-----
From: John Brier <johnbrier@gmail.com>
Sent: Friday, January 7, 2022 9:29 PM
To: AMSAT BB <amsat-bb@amsat.org>
Subject: [AMSAT-BB] [Video] New linear satellite HO-113 and its issues
Watch me work this 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.
https://youtu.be/NglO_WJ2hhc
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
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/0tsrxs2l2lzr1ix/HO-113_frequency_table.pdf?dl=0
XW-3 user manual:
https://www.amsat.org/wordpress/wp-content/uploads/2021/12/XW-3_Amateur_Radi
o_Satellite_Users_Manual_V1.0.pdf
This video was based on this article:
https://spacecomms.wordpress.com/2022/01/02/new-chinese-linear-satellite-xw-
3-and-its-issues/
73, John Brier KG4AKV
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Sent via AMSAT-BB(a)
amsat.org. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Acceptable Use and Privacy Policies available at
https://www.amsat.org/about-amsat/View archives of this mailing list at
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