[amsat-bb] HRD, SatPC32, SDRConsole and their satellite tracking

[Michael Carper, Ph.D.]

Thanks, Stefan.

Mike, WA9PIE

On Sat, Feb 2, 2019 at 9:29 AM Stefan Wagener <wageners at gmail.com> wrote:

> Hi folks,
>
> Rather than trying to compare apples and oranges between various satellite
> tracking programs and their perceived satellite tracking inaccuracies, I
> ran SatPC32, HRD V.:6.5.0.184 and SRDConsole V.3.0.4 simultaneously on the
> same machine with the same internal clock and exact matched home location
> incl antenna height, same Kepler data etc.The results can be seen on the
> attached image (for those that receive this email directly). All three
> programs and are matching each other in terms of satellite position
> relative to location. Any significant discrepancies between programs that
> users might experience are most likely attributable to differences in
> program setup and not a result of program bugs as indicated lately in
> messages.
>
> For those reading this message on the BB, I will post the image on the
> AMSAT Facebook page.
>
> Hope this helps,
>
> Stefan, VE4NSA
>
>
>
>
> On Sat, Feb 2, 2019 at 7:02 AM Roy Dean <royldean at gmail.com> wrote:
>
>> Mike, I don't see any times listed for the Amsat tracking.   I think the
>> problem is people are saying that HRD "lags" (ie, the track is correct,
>> but
>> several seconds/minutes behind).   Regardless of if that is true or not,
>> what I would suggest to verify HRD's tracking is to open two windows, one
>> with AO-91 or 92 in HRD (realtime, during an actual pass), and one with
>> Amsat Argentina's website:
>>
>> http://amsat.org.ar/pass.htm
>>
>> Be sure to enter your correct grid square and select the correct
>> satellite,
>> and it will tell you current Az/El and doppler frequencies for Uplink and
>> Downlink.   I've found this site to be very reliable, and no installs are
>> required (it runs in the browser).
>>
>> --Roy
>> K3RLD
>>
>> ------------------------------
>>
>> > Regarding the control of two VFOs simultaneously... we're working on
>> this
>> > next. On another note, I've been comparing satellite passes between HRD
>> > Satellite
>> > Tracking and AMSAT's tracking and I am unable to find any differences.
>> > Here's an example with AO-91:
>> > http://www.hamradiodeluxe.com/AO-91-Pass-min.png
>> >
>> > Mike, WA9PIE
>> _______________________________________________
>> Sent via AMSAT-BB at 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.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>