From ralph at schmid.xxx  Tue Nov 28 11:07:17 2017
From: ralph at schmid.xxx (Ralph A. Schmid, dk5ras)
Date: Tue, 28 Nov 2017 12:07:17 +0100
Subject: Any work on creating a SDR based TETRA BS?
Message-ID: <001501d36839$0de1c200$29a54600$@schmid.xxx>

Hi,

As we got our first ham radio TETRA BTS in TMO (maybe the first in the
world, who knows?!) I wonder if there is any ongoing work creating a TETRA
BS that is based on some SDR, like USRP or bladeRF? 

Would be a quite interesting playground, and TETRA should be documented
enough...

With best regards

Ralph.



From alexander.huemer at xx.vu  Tue Nov 28 11:53:03 2017
From: alexander.huemer at xx.vu (Alexander Huemer)
Date: Tue, 28 Nov 2017 12:53:03 +0100
Subject: Any work on creating a SDR based TETRA BS?
In-Reply-To: <001501d36839$0de1c200$29a54600$@schmid.xxx>
References: <001501d36839$0de1c200$29a54600$@schmid.xxx>
Message-ID: <20171128115303.GA15813@yade.chaostreff.at>

Hi Ralph!

On Tue, Nov 28, 2017 at 12:07:17PM +0100, Ralph A. Schmid, dk5ras wrote:
> As we got our first ham radio TETRA BTS in TMO (maybe the first in the
> world, who knows?!)

You may want to get in touch with the guys from 'metafunk'[1] . They are 
running a ham radio TETRA BTS from a mountain in Vienna, though I am not 
entirely sure whether it is DMO or TMO.
Is there documentation somewhere that describes what you have done?

Kind regards,
-Alex

[1] https://metalab.at/wiki/MetaFunk
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From ralph at schmid.xxx  Tue Nov 28 12:19:25 2017
From: ralph at schmid.xxx (Ralph A. Schmid, dk5ras)
Date: Tue, 28 Nov 2017 13:19:25 +0100
Subject: Any work on creating a SDR based TETRA BS?
In-Reply-To: <20171128115303.GA15813@yade.chaostreff.at>
References: <001501d36839$0de1c200$29a54600$@schmid.xxx>
 <20171128115303.GA15813@yade.chaostreff.at>
Message-ID: <003101d36843$21a782c0$64f68840$@schmid.xxx>

Hi,

> You may want to get in touch with the guys from 'metafunk'[1] . They are
> running a ham radio TETRA BTS from a mountain in Vienna, though I am not
> entirely sure whether it is DMO or TMO.

Should be DMO, those are quite common. 

> Is there documentation somewhere that describes what you have done?

It wasn't me, the Taunus Relais Gruppe http://www.trg-radio.de/ - they
adopted some commercial BS for TMO. I will log in in two weeks and play with
it a bit, when I get into the Frankfurt area. 

> Kind regards,
> -Alex
> 
> [1] https://metalab.at/wiki/MetaFunk

With best regards

Ralph.