Hi Saku,
that's no problem, use message_aggregator in the WSJT-X distribution.
There is also a small command line utility udp_daemon. Neither do
anything in particular as they are to demonstrate WSJT-X UDP Message
Protocol facilities. Both support multicast group addressing.
There are only a couple of minor gotchas with multicast. If you wish to
run multiple servers on the same network interface you must set the
SO_REUSEADDR socket option, and if you try and join an IPv4 multicast
group you must bind to your listening socket for IPv4 only, i.e. you
can't bind to the dual-stack ANY address, so usually you bind to
"0.0.0.0" in that case. To join an IPv6 multicast group there is no such
restriction and there you would normally either bind to the dual-stack
ANY address, or for IPv6 only use the IPv6 ANY address "::"
73
Bill
G4WJS.
On 30/07/2020 09:33, Saku wrote:
HI Al and Bill!
I made quick test to enable multicast with cqrlog wsjt-remote. (Ararat
Synapse is used in wsjt-remote)
Now doing multicast initialization if ip address is from cqrlog
preferences is from 239.0.0.0/8 subnet.
Seems to work, but needs further testing that it really does. (I need
some other stuff to listen the address at same time).
If it is ok I will request it to cqrlog after test period. (Source now
in my GitHub https://github.com/OH1KH/cqrlog/tree/multi_wsjtx)
Bill Somerville kirjoitti 26.7.2020 klo 23.40:
Hi Al,
try 239.255.0.0.
73
Bill
G4WJS.
On 26/07/2020 21:34, alaw...@mudhawk.com wrote:
Thanks, Bill - this may be what I needed.
Both wsjtx and cqrlog have a place to specify an address. I'm
currently using 127.0.0.1. I can go see if there is a multicast
specification that I can put in here.
--al
WB1BQE
-------- Original Message --------
Subject: Re: [wsjt-devel] ERE: Feature Request
From: Bill Somerville <g4...@classdesign.com
<mailto:g4...@classdesign.com>>
Date: Sun, July 26, 2020 3:45 pm
To: wsjt-devel@lists.sourceforge.net
<mailto:wsjt-devel@lists.sourceforge.net>
Hi Mike,
applications that interoperate with WSJT-X using the UDP
protocol are supposed to support listening on a UDP multicast
group address, this allows multiple applications to listen on
the same port and each have all messages delivered to them.
Unfortunately several applications have not included multicast
support, either because they use tools that don't easily support
it, or they didn't see the need.
73
Bill
G4WJS.
On 26/07/2020 20:34, alaw...@mudhawk.com wrote:
HI Mike (and everybody else),
I was fascinated by your idea of using the UDP status
messages, but wanted to put together a POC and get past the
initial teething pains before making more noise. Today the
lawnmower broke, providing me such an opportunity... :)
As of now, I have a simple Python script (Borrowed heavily
from an internet tutorial on UDP. It connects to wsjtx 2.2.2,
and outputs blocks of data as exppected. From the ascii
portions, I recognize this as part of the block described in
the communication protocol, so in theory, I should be able to
parse this apart and get what I need.
I did, however, hit a snag. I also use CQRLOG for
automatic logging. Apparently CQRLOG also uses this
integration, because I get an address in use error if Imy
script tries to connect while CQRLOG is running. (it works
fine otherwise, as outlined above.)
Fine points of networking aren't really my thing, but I like
to learn stuff. That said, before I go down a potentially bad
path, at the block diagram "architectural" level, is it
possible for 2 clients to share a UDP port, or is the desire to
also have CQRLOG running a deal breaker?
(I tried the secondary port (2233), but that appears to be
only logged data, not the treasure trove that is on port 2237.)
Thanks for any guidance!
--al
WB1BQE
-------- Original Message --------
Subject: Re: [wsjt-devel] Feature Request
From: Mike Lewis <k7...@hotmail.com <mailto:k7...@hotmail.com>>
Date: Mon, July 20, 2020 4:09 pm
To: WSJT software development
<wsjt-devel@lists.sourceforge.net
<mailto:wsjt-devel@lists.sourceforge.net>>
I use a Python program to monitor the WSJT-X UDP status
message broadcasts. It has radio dial frequency and more.
I use the frequency to load the correct calibration data
for my remote VHF+ wattmeter. It in turn can be used to
drive other things.
The wattmeter is a Arduino or PSoC5 device attached to a rf
log detector and standard dual directional coupler.
It would seem the UDP status message has all you would need?
Mike
K7MDL
Sent from my T-Mobile 4G LTE Device
Get Outlook for Android <https://aka.ms/ghei36>
------------------------------------------------------------------------
*From:* alaw...@mudhawk.com <mailto:alaw...@mudhawk.com>
<alaw...@mudhawk.com <mailto:alaw...@mudhawk.com>>
*Sent:* Monday, July 20, 2020 12:46:50 PM
*To:* WSJT software development
<wsjt-devel@lists.sourceforge.net
<mailto:wsjt-devel@lists.sourceforge.net>>
*Subject:* Re: [wsjt-devel] Feature Request
Thank you Bill (And Bill) - that worked great and does
exactly what I was looking for! (In fact, I can feed it to
Python's simple webserver and watch for DX from anywhere... :)
I'm also going to try WB6DJI (Mike's) suggestion of JTDX.
I would really love it if the user_hardware request saw
the light of day at some point. I currently have 2
Raspberry PI / SDR combos which band hop on wspr all day,
but if I could get some extra data passed in around the
wsjt-x operating mode, and the frequency, I could do a lot
in terms of integrating the FT-8 setup into the rest of my
shack so it can drive my network aware antenna switches etc.
73, and thanks!
--al
WB1BQE
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Saku
OH1KH
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