[amsat-bb] DSLWP UHF Test Plan on May 31, Jun 1 and Jun 3

[Jean Marc Momple]

Scott,

All corrected this side with the help of Wei & Dimitry (thanks to them), just stupid things like proxy not running, wrong file path in Program Tracking CC etc…

About the JT4: I don’t see it on the GNU drop down it spite it is in the Examples directory.

73

Jean Marc (3B8DU)

> On Jun 6, 2018, at 1:17 AM, Scott <scott23192 at gmail.com> wrote:
> 
> In my case, packet drops are caused by running out of system resources
> (CPU, memory).
> 
> To allow me to run the essential parts of the decoders, I have disabled all
> unnecessary waterfalls, constellation GUI, etc.   I also close any other
> apps running on my computer, including background apps like Dropbox.
> 
> As for "Connection refused", if I am not mistaken that is when a decoder is
> started without the proxy application running.  (You can certainly disable
> "KISS Encode PDU" & "Socket PDU" blocks if you would like to test those
> flowgraphs without a proxy connection!)
> 
> If you would like help with the JT4 aspect, please provide more detail.
> FYI, for me it put too much burden on system resources.  So, I have
> disabled those blocks that make audio-OUT available for use by WSJTx.
> 
> Instead, I use a different SDR / different computer to listen for JT4G.
> 
> 73!
> 
> -Scott,  K4KDR
> 
> 
> ==============================
> 
> 
> On Tue, Jun 5, 2018 at 1:20 AM, Jean Marc Momplé <jean.marc.momple at gmail.com
>> wrote:
> 
>> Dimitry,
>> 
>> I get the same message about packet drop or RuntimeError: Connection
>> refused, have you been able to solve this?
>> 
>> Also the JT4 Flowchart does not seems to work.
>> 
>> Reading the GNU Radio Tutorials to try to understand...
>> 
>> 73
>> 
>> 
>> Jean Marc (3B8DU)
>> 
>> On 2 June 2018 at 21:26, Dimitry Borzenko <4z5cp at bezeqint.net> wrote:
>> 
>>> Hello Wei and group.
>>> Have checked new LiveCD- makes problem, FrontEnd DSLWP RXRTL loads 4 i7
>>> CPUs 90%, so demodulator doesn't works terminal show message about too
>> many
>>> packet drops.....
>>> 
>>> de 4z5cp
>>> 
>>> ------ Original Message ------
>>> From: "韦明川" <wmc_jx at 163.com>
>>> To: "amsat-bb at amsat.org" <amsat-bb at amsat.org>
>>> Sent: 31.05.2018 11:32:18
>>> Subject: [amsat-bb] DSLWP UHF Test Plan on May 31, Jun 1 and Jun 3
>>> 
>>> Hi OMs,
>>>> 
>>>> 
>>>> We are planning two tests for UHF of DSLWP-B, from 31 May 16:00 UTC to
>> 31
>>>> May 18:00 UTC, and from 1 Jun 02:00 UTC to 1 Jun 04:00 UTC.
>>>> 
>>>> 
>>>> We will change the mode of the transmitters to 250 bps GMSK and JT4G on
>>>> 435.4 MHz (GMSK every 5 min, JT4G every 10 min, JT4G has higher
>> priority),
>>>> and 250 bps GMSK on 436.4 MHz (every 5 min). Corresponding demod grcs
>>>> should be used.
>>>> 
>>>> 
>>>> Some more tests are planned on Jun 3, and detailed time TBD.
>>>> 
>>>> 
>>>> The temperature of onboard batteries is a little higher than expected,
>>>> that's why UHF is not always on.
>>>> 
>>>> 
>>>> 
>>>> Tracking file updates can be found on: https://github.com/bg2bhc/dslw
>>>> p_doc or http://lilacsat.hit.edu.cn/tle/program_tracking_dslwp-b.txt
>>>> 
>>>> 
>>>> Updated version of Live CD:
>>>> https://drive.google.com/file/d/1Ptga7XfgQ--qsnD4QhpNiRRUIW3
>>>> c626L/view?usp=sharing
>>>> 
>>>> 
>>>> Best Regards and 73!
>>>> 
>>>> 
>>>> Wei BG2BHC
>>>> 
>>>> --
>>>> 
>>>> WEI Mingchuan
>>>> 
>>>> 
>>>> Research Center of Satellite Technology
>>>> Harbin Institute of Technology
>>>> mobile: +86-189-4501-5242
>>>> e-mail: wmc_jx at 163.com; bg2bhc at gmail.com
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