Hi all,
I took advantage of the gorgeous weather for the 24th here in Dallas, to drag all my satellite stuff out into the back yard and make contacts on several Linear passes throughout the middle of the day. I have not been on the linear birds since Field Day. Most of my good passes during the middle of the day, were the CAS 4Z and CAS 4B birds. 4B was nice and strong as it ever was, but 4A was weak and impossible for me to find myself. It was 4A that was reported to be shutting down periodically? Or 4B? Both birds never seemed to drop, but for me 4A seemed much lower in output power. Is this what others have noticed, or was it just me?
Just curious. I enjoyed the outing, even with that challenge. Hope to be active on sats for fun on Winter Field Day, even if only ne contact counts toward our score.
I have been on a few CAS-4A passes in the last week. While it had a downlink it was as strong as ever, but it would either drop power or 'turn off' after a bit and then come back after about 10-20 seconds.
--... ...-- Don KB2YSI
On Mon, Dec 27, 2021, 20:20 tjschuessler--- via AMSAT-BB [email protected] wrote:
Hi all,
I took advantage of the gorgeous weather for the 24th here in Dallas, to drag all my satellite stuff out into the back yard and make contacts on several Linear passes throughout the middle of the day. I have not been on the linear birds since Field Day. Most of my good passes during the middle of the day, were the CAS 4Z and CAS 4B birds. 4B was nice and strong as it ever was, but 4A was weak and impossible for me to find myself. It was 4A that was reported to be shutting down periodically? Or 4B? Both birds never seemed to drop, but for me 4A seemed much lower in output power. Is this what others have noticed, or was it just me?
Just curious. I enjoyed the outing, even with that challenge. Hope to be active on sats for fun on Winter Field Day, even if only ne contact counts toward our score.
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At present, the remote sensing payloads on CAS-4A and CAS-4B satellites have been decommissioned, and the on-orbit attitude management of these two satellites on the ground has ended. As the attitude errors of the satellites gradually increase， the solar array panels will not be well aligned with the sun, and the satellite’s power supply will gradually deteriorate, resulting in the amateur radio payload not being able to work continuously without interruption.
73！ Alan, BA1DU
--
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At 2021-12-29 21:48:11, "Don KB2YSI" [email protected] wrote:
I have been on a few CAS-4A passes in the last week. While it had a downlink it was as strong as ever, but it would either drop power or 'turn off' after a bit and then come back after about 10-20 seconds.
--... ...-- Don KB2YSI
On Mon, Dec 27, 2021, 20:20 tjschuessler--- via AMSAT-BB [email protected] wrote:
Hi all,
I took advantage of the gorgeous weather for the 24th here in Dallas, to drag all my satellite stuff out into the back yard and make contacts on several Linear passes throughout the middle of the day. I have not been on the linear birds since Field Day. Most of my good passes during the middle of the day, were the CAS 4Z and CAS 4B birds. 4B was nice and strong as it ever was, but 4A was weak and impossible for me to find myself. It was 4A that was reported to be shutting down periodically? Or 4B? Both birds never seemed to drop, but for me 4A seemed much lower in output power. Is this what others have noticed, or was it just me?
Just curious. I enjoyed the outing, even with that challenge. Hope to be active on sats for fun on Winter Field Day, even if only ne contact counts toward our score.
-----------------------------------------------------------
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/
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Thanks for the information Alan! I am sure it was shared previously and I missed.
--... ...-- Don KB2YSI
On Wed, Dec 29, 2021, 13:30 Alan Kung [email protected] wrote:
At present, the remote sensing payloads on CAS-4A and CAS-4B satellites have been decommissioned, and the on-orbit attitude management of these two satellites on the ground has ended. As the attitude errors of the satellites gradually increase， the solar array panels will not be well aligned with the sun, and the satellite’s power supply will gradually deteriorate, resulting in the amateur radio payload not being able to work continuously without interruption.
73！ Alan, BA1DU
--
网易VIP邮箱提醒：安全收发邮件，务必核实往来邮件地址、银行账号等机密信息，请通过电话或视频等多种方式确认信息真实性，提高警惕，请勿轻易透露个人重要信息。 Alert message of Netease Vipmail：Never provide your password, security questions, verification codes, or any other personal important information details to anyone else. You can identify mail message by telephone,video-chat or other ways.You should make sure that your email address, bank account and other confidential information as secure as possible. Thank you for keeping your email account secure.
At 2021-12-29 21:48:11, "Don KB2YSI" [email protected] wrote:
I have been on a few CAS-4A passes in the last week. While it had a downlink it was as strong as ever, but it would either drop power or 'turn off' after a bit and then come back after about 10-20 seconds.
--... ...-- Don KB2YSI
On Mon, Dec 27, 2021, 20:20 tjschuessler--- via AMSAT-BB < [email protected]> wrote:
Hi all,
I took advantage of the gorgeous weather for the 24th here in Dallas, to drag all my satellite stuff out into the back yard and make contacts on several Linear passes throughout the middle of the day. I have not been on the linear birds since Field Day. Most of my good passes during the middle of the day, were the CAS 4Z and CAS 4B birds. 4B was nice and strong as it ever was, but 4A was weak and impossible for me to find myself. It was 4A that was reported to be shutting down periodically? Or 4B? Both birds never seemed to drop, but for me 4A seemed much lower in output power. Is this what others have noticed, or was it just me?
Just curious. I enjoyed the outing, even with that challenge. Hope to be active on sats for fun on Winter Field Day, even if only ne contact counts toward our score.
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 https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
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Alan Kung -
Don KB2YSI -
tjschuessler＠verizon.net