[amsat-bb] Uplink Calibration in SatPC32

[Alan]

Have you checked your system clock?  Try https://time.is which is very
accurate.  Some computer clocks can drift badly, and this can cause the need
for constant tweaking, even with very stable satellites.

73,

Alan
WA4SCA


<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of k6vug-
<-- via AMSAT-BB
<Sent: Friday, April 24, 2020 9:53 AM
<To: AMSAT-BB <amsat-bb at amsat.org>; VA3ASE <va3ase at gmail.com>
<Subject: Re: [amsat-bb] Uplink Calibration in SatPC32
<
<
<It happens with both Sat{C32 as well as HRD Satellite and gets really bad
<on higher passes.
<
<73!Umesh, k6vug
<
<
<
<    On Thursday, April 23, 2020, 7:30:27 PM PDT, VA3ASE via AMSAT-BB
<amsat-
<bb at amsat.org> wrote:
<
< I've been learning to operate my station using SatPC32. I'm finding I need
<to constantly adjust my uplink calibration in the CAT Tuning menu or I
<start to lose myself. On the most recent pass of XW-2A it required
<adjustment of about 150 Hz over the duration. This seems like a lot to me -
<I know its normal to make fine adjustments at the beginning of a pass but
<thought I could then leave it. Is this normal or is something amiss?
<
<If anything I suspect it is related to keps - I update these manually by
<going to Satellites and clicking Update Keps. Then selecting the nasa.all
<file and Download. Have I missed something?
<
<Station details: Icom IC-9700 transceiver (firmware 1.21), SatPC32 version
<12.8d, Windows 10. Crossed yagis on a G-5500 rotator, K3NG based interface.
<
<Thanks in advance and 73,
<Alex VA3ASE
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