[amsat-bb] Need help figuring out ISS Packet UPlink stuff

[Jean Marc Momple]

Bob,

I struggled a lot before succeeding due to a very simple issue. to explain:

We don’t have any land APRS in 3B8, thus the only way for me to test was thru the birds or ISS therefore trial and error during short passes. I am using Signalink TNC and TS2000/SDR.

1) I was receiving well all APRS from satellites/ISS but failing all the time on Tx/uplink in spite receiving myself in the shack successfully. Therefore was not sure about the issue and trying all sort of settings, computer sound, UISS, UZ7HO sound modem, etc...
2) After a while fed-up with all that I put everything to default and try again, and just played with the Signallink Tx volume starting at the minimum level and it simply worked out first time. Was just over modulating.
3) I tried for a few passes and now it works out nearly 100% receiving myself.
4) As Dave mentioned, I confirm that he UISS setting is simply TO: CQ and VIA: ARISS or RS0ISS.

Same problem with Falconsat (9k2), I did not had a good pass to check but suspect same issue.

Unfortunately no-one in the region to test 2-way QSO except ZS stations which hopefully will work soon.

Hope this help.

73



Jean Marc (3B8DU)

> On Oct 23, 2018, at 5:50 PM, Dave Webb KB1PVH <kb1pvh at gmail.com> wrote:
> 
> Bob,
> 
> To:CQ
> Via:ARISS
> 
> Dave-KB1PVH
> 
> 
> Sent from my Galaxy S9
> 
> 
> On Tue, Oct 23, 2018, 9:47 AM Bob KD7YZ <kd7yz at denstarfarm.us> wrote:
> 
>> Hi, after I switched to Win 10/64 pro a couple weeks ago, I no longer
>> can make program UISS/AGWPE get a response from the ISS 145.825 AX.25
>> setup.
>> 
>> NOTE: I regularly decode packets from them ... even a few mins ago.
>> 
>> What settings, with respect to uplink, am I missing ?
>> 
>> I use an IC910H for the ISS work and a 2m 5wl beam on Alpha-Spid rotator.
>> 
>> 
>> If I could test the UISS program SENDING a packet locally to some sort
>> of APRS or AX.25, then I could test the setup on the earth path.
>> 
>> I do not know how to do that. As, even though I copy/decode 144.390
>> packets here, and 145.825 packets here, I try sending but do not know
>> what to put in the "TO" and the "VIA" to be able to make that station
>> hear me .. or repeat me .. or send an ACK ... whatever
>> 
>> I am clueless on what form, or PL, I need to use on either the ISS or
>> into the packet system.
>> 
>> someone give a basic format that will allow me to test this station
>> setup earth-wise please ??
>> 
>> thank you very much.
>> 
>> 
>> --
>> 73,
>> Bob KD7YZ LM# 901
>> 
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> _______________________________________________
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