[Allstar Digital] MMDVM and Home Brew Repeater

[Steve Zingman]

Looks nice Jon.

Receiver:
<https://drive.google.com/file/d/0ByDmt8HV_FwMSmhrSUNFbkxVTGc/view?usp=sharing>

Transmitter:
<https://drive.google.com/file/d/0ByDmt8HV_FwMSTFXRE1FX0FpZ0E/view?usp=sharing>

Service manual:
<https://drive.google.com/file/d/0ByDmt8HV_FwMWjRUOXNfTVN5ckE/view?usp=sharing>

Software:
<https://drive.google.com/file/d/0ByDmt8HV_FwMN1hORWg4ZGRzdnM/view?usp=sharing>

I was not able to get a good picture of the TCXO board. The test point 
is TSP901 shown on the board layout from the service manual
I needed to add a 10K resistor to ground for the receiver and the MMDVM.

Steve


On 1/19/2016 11:15 AM, Jon Rorke wrote:
> Steve can you shoot me the info on connections to the Tait T2000s. I 
> know you can put a db 9 on the back and wire in the connections.
>
> I just need to see where you wired in on the controller bd.
>
> I have a couple of these radios and would like to interface them for 
> Allstar or DMR.
>
> By the way I have made a repeater out of Tait TM8110s.
>
> the nice thing about these radios is there is a db 15 on the back and 
> you can program the the audio out to give you discriminator and direct 
> mod.
>
> Its all done in the Tait SW. A simple harness to be built and it works 
> great.
>
> I believe these radios are the same guts as the TB7100 repeater 1 u 
> racks.
>
> see attached.
>
> Thanks,
>
> Jon RQ
>
> On 1/19/2016 6:37 AM, Steve Zingman wrote:
>> The current version of MMDVM modem firmware and the MMDVMHost program 
>> are functioning well as a Home Brew DMR Repeater.
>>
>> I'm using a pair of Tait T20xx mobiles, the receiver connected to the 
>> discriminator and the transmitter connected to the TCXO audio board. 
>> The modem is a Arduino Due with the prototype audio board. The 
>> MMDVMHost program is running on a Raspberry PI2. I'm using the 
>> Raspberry Pi2 version of DIAL. It's Debian Jessie. (it just works) 
>> CPU utilization is very low. Audio is good, little or no dropouts.
>>
>> MMDVMHost provides network connectivity to BrandMeister, So I'm able 
>> to carry on QSO with remote users. Since ASL 2100 is connected to 
>> BrandMeister, My audio is being repeateted out on ASL.
>>
>> I do plan to try out other RF equipment, including Motorola, Kenwood 
>> and a Tait T800 repeater.
>>
>> 73, Steve N4IRS
>>
>
>
>
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