[amsat-bb] FW: HRD tracking errors

[Ted Krempa]

Mike, here are a couple of answers that were posted for me a few weeks ago:

Keps are the Keplarian elements that define a satellite's orbit and are used
to predict its location.  You have to update these every few days (daily for
ISS, which reboots its orbit from time to time).  You trigger the update
manually, using the Update Keps button, and specify the update source for
the keps - the NASA.bare keps from AMSAT are a good choice (they include
AO-85).

The sqf file contains information that defines the operational modes of a
satellite (frequencies, tones, modulation, and so on).  This info gets
entered once when the satellite is new.  It might need to change if the
frequency drifts with age or if a new satellite isn't operating as expected,
but generally remains fixed.  You edit this file with a text editor.

Dave, W8AAS

Have the above answered your questions?  Seems to me two different issues
have been mixed here as the Keps and Doppler.sqf are two different items and
updating one does not update the other
1.	The Keps can be updated from a number of sources to be found on the
drop down under the <Satellites> tab
2.	Doppler.sqf is manually updated by you when a new satellite is added
to the family using Notepad or some kind of text editor.  Be sure to follow
the rules embedded in Doppler.sqf when messing with the file.  You can save
a copy that has not been modified the Uplink calibration process as
Doppler.REF or some such thing.  And, yes, each radio has slightly different
calibration offsets in Doppler.SQF.  That is what I use the 4 different
configuration options for <Setup><Configurations>.  I use one config for a
pair of FT-817's another for an IC-910H and a third for Flex 6600.
3.	Don't forget if you are adding a new FM satellite to Doppler.SQF you
also need to go into Subtones.SQF and add the new satellite to that list as
well so the T0 > T1 >T2 toggle works correctly.  Again follow the embedded
instructions carefully.  This is another file that can be manipulated with a
text editor like Notepad.
Hope this helps, John Kludt

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Michael
Carper, Ph.D. via AMSAT-BB
Sent: Tuesday, January 29, 2019 12:23 PM
To: Ted Krempa
Cc: AMSAT BB
Subject: Re: [amsat-bb] FW: HRD tracking errors

Well, for the sake of demonstrating my ignorance here...

What's an SQF file?

Mike, WA9PIE

On Tue, Jan 29, 2019 at 2:21 PM Ted Krempa <k7trkradio at charter.net> wrote:

>
> Hi Mike, while you are here, is there a way to access the sqf file in HRD?
>
> Thanks, Ted
> K7TRK
>