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

[Scott]

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