[App_rpt-users] RTCM 2m/6m Split Site

[Mike/W5JR]

If you configure the two AllStar nodes as duplex without local repeat, I believe you can tie the nodes together where one feeds the other and vice versa - a pair of split site repeaters using just 2 nodes and 2 RTCMs. You would also want to disable the local repeat option in the RTCM for Internet failures. And an Internet failure at one site would take down both repeaters. 

tnx
Mike / W5JR
Milton GA

> On Feb 2, 2014, at 1:17 PM, Chris Andrist <chris at yeahmon.net> wrote:
> 
> Steve,
> 
> It depends on how you want to operate your system.
> 
> The RTCM has a single connections for a receiver and transmitter, however they cannot work independently.
> 
> if you have planning on having your 2m and 6m repeater linked full time to each other then you can use 2 RTCM’s.
> 
> When someone keys up the 2m receiver it will also key up the 6m transmitter at that same site. As long as the 2 sites are linked then the audio will be transmit at the 2m and 6m site.
> 
> When someone keys up the 6m receiver it will also key up the 2m transmitter at the same site and the 6m transmitter at the remote site.
> 
> However if you would like to have the 2m and 6m repeater separate from each other you will need 4 RTCM’s. One for each transmitter and one for each receiver at each site.
> 
> Hope that helps.
> 
> Regards,
> 
> Chris Andrist, KC7WSU
> 
> 
> 
>> On Feb 2, 2014, at 11:02 AM, Steve Wright <stevewrightnz at gmail.com> wrote:
>> 
>> 
>>> RTCM's don't care what the frequency of operation is... just that one
>>> transmits and one receives.
>>> 
>>> Pretty much like duplexers don't care what radios are connected to
>>> them... nor does Asterisk care what equipment is on the other side of
>>> the URIx ... COR/COS, Audio in, Audio out, PTT and Ground.
>>> 
>>> It's up to you to figure out which radio gets what connection ;-)
>> 
>> I'm pretty sure it doesn't care what antenna is connected either. 
>> 
>> But this doesn't answer my question.  Permit me to rephrase. Again.
>> 
>> Two split-site repeaters.  Each repeater receiver has its' corresponding transmitter on a geographically distant site (that's what a split site repeater is you know! ;)
>> 
>> The sites are linked with outdoor wireless ethernet 802.11an
>> 
>> Site "A"
>> 6m TX
>> 2m RX
>> 
>> Site "B"
>> 6m RX
>> 2m TX
>> 
>> Do I need two RTCMs or four?
>> 
>> 
>> Steve
>> 
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