[pskmail] Re: pskmail at 2000 bps using RFSM 2400
- From: "Per Crusefalk" <per@xxxxxxxxxxxx>
- To: pskmail@xxxxxxxxxxxxx
- Date: Tue, 23 Jan 2007 15:40:13 +0100 (CET)
Hi Karel,
Yes, two soundcards seems to be needed. It appears that wine has a problem
with full duplex in the way that RFSM wants to use it. Also, I have
various levels of success with my PC's. Some work pretty good and others
just crash.
I have made pskmail send connect frames using RFSM but I have only one PC
that likes RFSM and wine so I can't test the entire system.
Lots of interesting info in your email, sound like you are having a lot of
fun there. Regarding the other waveforms I would love to see PSK256 in
fldigi, is that only available in MixW at the moment or is it supported by
other software ?
73 de Per, sm0rwo
> Thanks Per, we will have look into this. I remember that tha last
> time you wrote about it, you mentioned that 2 soundcards were needed.
> Is that so?
> Deed you have any experiment using the RFSM dumpterminal? as you
> mention in your mail.
> Anyway we will give it a try, although we are very busy this year
> starting up business in Ecuador. Connectivity is a hype overhere and
> we are working on severel connectivity proyects in the rural area.
> PSK125 and if possible PSK256 and PSK2400 are exelent candidates for
> emergency communications. We first want to setup a network trying all
> modes and than as second step offer this communications modes to Civil
> defence, Red Cross and others. We have in mind to make one pilot
> emergency vehical to have a show example.
> The amateur radio world overhere is very limmited. Nearly everything
> is related to a 40 meter network in voice mode, each morning and
> evening. There is some experimenting with RTTY, but not comming any
> further than using Mixw, or other windows applications. The rest of
> the frecuencies in use are all 2 meter networks, some quite big. We
> have some very high repeater point in the country at more than 4000
> meter (Atacazo) !, Giving a coveradge of more than 200km radius. 20
> repeaters are interconnected resulting in a nationwide (mobile)
> network.
> We now started with some amateurs on using other digital modes and
> hope that the introduction of PSKmail, will help to improve the use.
> greetings
> karel
> HC1AKP / PE2KFA
>
> 2007/1/23, Per Crusefalk <per@xxxxxxxxxxxx>:
>> Hi,
>>
>> This is in response to Karels question regarding MIL-STD-188-110A using
>> RFSM2400. Its easy to interface RFSM2400 and PSKmail, here is how:
>>
>> 1. Set RFSM2400 to "dumb modem mode - IPC" within options/modulation.
>>
>> This will make RFSM2400 work like fldigi/gmfsk, it will look for a file
>> within the folder "TRANSEIVE" and transmit that. It will log everything
>> received to the file "alldata" within the folder "RECEIVED"
>>
>> 2. Change the paths that pskmail use to send and receive
>>
>> Within pskmailrc.pl change $output and point that to the filename that
>> RFSM should pick up. For instance
>> $output = ">$ENV{HOME}/.wine/drive_c/Program
>> Files/RFSM2400/TRANSEIVE/rawdata.0";
>> The filename rawdata.0 means to send using 2000 bps and short
>> interleave.
>> Short interleave is 1.2 seconds for commercial modems, don't know how
>> long
>> it is in the modified mode.
>>
>> Change $Inputfile to point to the alldata file within RECEIVED, for
>> example:
>> $Inputfile = ">$ENV{HOME}/.wine/drive_c/Program
>> Files/RFSM2400/RECEIVED/alldata";
>>
>> 3. Run and have fun
>>
>> When you start RFSM2400 it will remove the file alldata so perhaps you
>> need to create it, for example with "touch alldata" within that folder.
>> You may have to experiment with interleaver and speed settings, timing
>> in
>> pskmail is not optimised for these speeds.
>>
>> 73 de Per, sm0rwo
>>
>>
>> > Altough we have our PSK125 mail station nearly ready in Ecuador. We
>> > tested very intensly the capability of the RFSM2400 188-110 a modem
>> > software.
>> > We are no very convinced that the protocoll is very persistant and
>> > able to get good troughput under very advers conditions. In QRM
>> > conditions the modem gets file sizes though that are realy remarkable.
>> > 10KB is easy. Especialy because the modem is negociating all the time
>> > keeps throughput good.
>> > Using 7045 USB all day and night gives nearly 24 hour service.
>> > Per and others, especialy for emergency traffic, if there would be any
>> > possibility to integrate such a modem in the PSKmail series it would
>> > be realy great.
>> > greetings
>> > Karel Fassotte
>> > HC1AKP
>> >
>> >
>> >
>> > 2007/1/22, Rich Hudgins <rhudgins@xxxxxxxxx>:
>> >> This has raised a point that I have thought about some and would like
>> to
>> >> comment on. First during Hurricane Rita it would have been of first
>> >> importance to be able to send either email or simple text messages
>> >> between clients. This would allow some sort of message form to be
>> >> followed. Second store and forward should be implemented between
>> >> clients in the same sort of autonegotioate mode that mesh networking
>> >> uses. That is if one of the clients on the air in the self forming
>> net
>> >> has a connection to an internet server then all mail is forwarded to
>> >> that station. To do this first all stations on the common frequency
>> >> would have to recognize each other and also who everyone can talk to
>> as
>> >> well as build a simple path [route] to each client. Something like
>> that
>> >> would be of great usefulness in an emergency. If each station builds
>> a
>> >> route list for the stations it hears and assigns a route index based
>> on
>> >> the amount of retries and broadcasts this list periodicaly then the
>> >> rest would be straight forward.
>> >> Rich Hudgins N5ale
>> >> Ps I know its not as easy as I make it sound but it would be the
>> first
>> >> dynamic network on HF that I know about.
>> >>
>> >> -----Original Message-----
>> >> From: pskmail-bounce@xxxxxxxxxxxxx
>> [mailto:pskmail-bounce@xxxxxxxxxxxxx]
>> >> On Behalf Of Rein Couperus
>> >> Sent: Monday, January 22, 2007 2:06 PM
>> >> To: pskmail@xxxxxxxxxxxxx
>> >> Subject: [pskmail] BBS for emergency communications
>> >>
>> >>
>> >> I have been looking into a BBS for adding to pskmail, to help those
>> who
>> >>
>> >> * have no internet connection for the server
>> >> * are forbidden to connect a radio to the internet (France)
>> >> * are setting up emergency comms for cases when a large slice of the
>> >> internet is down and there is no possibility to reach an HF gateway
>> with
>> >> running internet.
>> >>
>> >> Of course I have been shopping for something useable which is
>> existing
>> >> and alive. I have found only 2 cases of BBSes which are still in
>> >> development/maintenance, and they are both german. The rest is either
>> >> dead or DOS. (The last update of F6FBB BBS was in Jan, 2003).
>> >>
>> >> The best is probably the one from the Baycom group in Munich, called
>> >> OpenBCM.
>> >>
>> >> But all these are cosmic solutions covering everything, the universe
>> and
>> >> the neighbours'cat. These BBSes are a nightmare to configure, and you
>> >> need 2 people to run one. Moreover, the whole infrastructure these
>> BBSes
>> >> use is dying quickly. In PA0 land the packet backbone has died,
>> >> the local city node in Eindhoven has 1 packet link and 7 internet
>> >> tunnels. And the group of AX25 users has gone down from 85 to 4.
>> >>
>> >> The main concern I have is that it is all based on a fixed
>> >> infrastructure, and I am sure what is needed in an emergency
>> situation
>> >> is ad hoc. The number of volunteers maintaining these systems is
>> getting
>> >> less in numbers, and the freaks running the infrastructure only talk
>> >> amongst themselves.... Technical development has stopped. We are
>> still
>> >> looking at 9600 bd ax25 links. An on 30m you can hear the wonders of
>> a
>> >> full-fledged HF APRS network running with 300 Bd AFSK digipeaters!!!
>> >>
>> >> If we are then talking about voluntary resources, I think we need
>> much
>> >> more basic stuff which is very much automatic and can be set up in an
>> >> easy but flexible way depending on circumstances.
>> >>
>> >> I had sworn I would not get involved in all this, but maybe it is
>> worth
>> >> getting started up. I have a nice test bed at the university of
>> >> Eindhoven, who host a pskmail server AND a packet BBS (F6FBB).
>> >>
>> >> One of the first things we need to know is, what is the minimum
>> >> functionality of such a BBS?
>> >>
>> >> To kick the ball off, I would say:
>> >> * Storage of mail not deliverable via internet (immediate delivery in
>> >> case of internet connection)
>> >> * Store/forward of mail to a destination BBS via a HF link
>> >> * User interface via Kmail or Evolution (POP3 interface)
>> >> * Capability to send scheduled bulletins
>> >> * Built in web server so people can also look at the mail locally (at
>> >> the server location, which may be a command post of some sorts) via a
>> >> connected LAN with a laptop
>> >>
>> >> This must be especially targeted at the emergency comms, as we have a
>> >> satisfying working solution for normal situations.
>> >>
>> >> Ideas are welcome.
>> >> Scenarios are welcome.
>> >> Resources are even more welcome.
>> >>
>> >> 73,
>> >>
>> >> Rein PA0R
>> >>
>> >>
>> >> --
>> >> http://pa0r.blogspirit.com
>> >>
>> >> --
>> >> No virus found in this incoming message.
>> >> Checked by AVG Free Edition.
>> >> Version: 7.5.432 / Virus Database: 268.17.4/643 - Release Date:
>> >> 1/21/2007 5:12 PM
>> >>
>> >>
>> >> --
>> >> No virus found in this outgoing message.
>> >> Checked by AVG Free Edition.
>> >> Version: 7.5.432 / Virus Database: 268.17.5/645 - Release Date:
>> >> 1/22/2007 4:10 PM
>> >>
>> >>
>> >>
>> >>
>> >
>> >
>>
>>
>>
>
>
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