Date: Mon, 18 Mar 2019 14:52:36 +0100 (CET)
From: Jacek Lipkowski <sq5bpf@lipkowski.org>
To: rsgb_lf_group@blacksheep.org
In-Reply-To: <3610593157.20190318123953@gmail.com>
Message-ID: <alpine.DEB.2.11.1903181431590.22616@mailn.lipkowski.org>
References: <3610593157.20190318123953@gmail.com>
User-Agent: Alpine 2.11 (DEB 23 2013-08-11)
MIME-Version: 1.0
Subject: LF: Re: Polish MF ship back up trasmitter
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

Hello


### There is also some information in a post from Dave G3YXM here 
(uncluding photos):
https://klubnl.pl/rsgb_lf_group-archives/html/rsgb_lf_group/2018-10/msg00087.html
He says it's 50W.


###  I see it mentioned here:
http://sp7pki.iq24.pl/default.asp?grupa=165822&temat=441483

Someone was looking for documentation. The response from SP9IKF is:

i don't remember the exact model, but most of these devices from RADMOR 
and later UNIMOR were installed in Polish shipyards, and they must obey 
the parameters in the SOLAS convention:

50W output
410-512kHz
A1A and A2A modes
-24V DC power supply

The TX is driven from a crystal, maybe the later versions were synthesized 
but i don't think so. Generally it's a device designed in the '70s, the 
device is completely transistorized. This is all that i remember.

The reply from SP3HSZ:

Thanks for the info. I could use some technical documentation. It is based 
on a crystal, and works very close to our band. Looking at the PA i think 
it might be capable of more than 50W, but i don't want to run it without 
the docs.


You could try on elektroda.pl (general electronics site) and 
sp7pki.iq24.pl (but this was already mentioned and not much information 
was given).

VY 73

Jacek / SQ5BPF


On Mon, 18 Mar 2019, Chris Wilson wrote:

> Date: Mon, 18 Mar 2019 12:39:53 +0000
> From: Chris Wilson <dead.fets@gmail.com>
> Reply-To: rsgb_lf_group@blacksheep.org
> To: Jacek Lipkowski <sq5bpf@lipkowski.org>
> Subject: Polish MF ship back up trasmitter
> 
>
>
>
> Hello  Jacek,
>
>  Chris, 2E0ILY here. I hope you do not mind the direct e-mail?
>
>  I just got hold of an MF transmitter made in Poland by Unimor. It's
>  possibly an NR-2502 model, Type 2511/2, all transistor, probably
>  about 50W output crystal controlled switchable frequencies with auto
>  emergency distress keying on the emergency channel. I have found
>  very little info on it, and would especially like a schematic. I
>  wonder if there are any speciality Polish groups that might have
>  someone present who has such information? Thanks Jacek.
>
> -- 
> Best regards,
> Chris                          mailto:dead.fets@gmail.com
>