Tower Identification

[Jphila20]

I listen to trunked simulcast P1 systems. Ohio MARCS-IP: Multi-Agency Radio Communications Site: Cuyahoga Co Simul

Is there software that can identify which tower I'm actually receiving from?

I currently use both Unitrunker and SDRTrunk.

Thanks!

John

 

[RaleighGuy]

I listen to trunked simulcast P1 systems. Ohio MARCS-IP: Multi-Agency Radio Communications Site: Cuyahoga Co Simul

Is there software that can identify which tower I'm actually receiving from?

I currently use both Unitrunker and SDRTrunk.

Unitrunker, SDRTrunk, DSD+, and just about all of them, especially if you load the system into the software. My personal favorite is DSD+ with a premium subscription to RR you can load the list of sites (towers) downloaded from the RR database and it shows you.

 

[nd5y]

I listen to trunked simulcast P1 systems. Ohio MARCS-IP: Multi-Agency Radio Communications Site: Cuyahoga Co Simul

Is there software that can identify which tower I'm actually receiving from?

The link you posted is for a simulcast site. All the tower locations transmit the exact same signal. Modern scanners and software can only tell you the site number. A simulcast site with multiple tower locations all transmit the same site number so there is no way to tell which ones you are receiving.

 

[dave3825]

Those programs can tell you what site your connected to but not the individual subsites within the site itself.

A KrackenRf might be able to..

 

[nd5y]

A KrackenRf might be able to..

How? It's a direction finder. You won't get meaningful readings on simulcast signals coming from different directions.

 

[dave3825]

I don't have one but would think if the CC from a simulcast site was plugged in, wouldn't it show on the screen the transmitters it sees?

 

[nd5y]

I don't have one but would think if the CC from a simulcast site was plugged in, wouldn't it show on the screen the transmitters it sees?

I don't think so. As far as I know that type of diection finder can only measure the time delay and phase difference between its antenna ports. And that's only good if the antennas are identical, spaced properly, and have the same electrical length of coax.

If there are multiple signals that are all in phase to begin with and coming from different directions then I don't see how it would be able to tell the difference or display anything useful. Maybe the same with strong multipath reflections from one transmitter. Maybe it can determine the strongest signal and display that.

 

[nd5y]

On theKrakenRF web site it says:
Having 2-3 or more fixed stations at appropriate geographic locations will allow users to instantly determine the location of a transmitter (assuming no significant multipath effects).

So if it can't handle multipath it would probably be totally useless for finding simulcast transmitters.