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Proscan dynamic with 'virtual' sites

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mitaux8030

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I'm trying to get my head around how Proscan (with dynamic neighbour scan list) is going to work with an adjacent 'virtual' site - that is, a frequency-translating repeater, sucking in the signal from a donor EDACS site, then retransmitting it (same site ID) on a new frequency set.
As you move from the 'donor' site to the 'virtual' site - how will proscan dynamic list handle that transition?
 
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Providing that BOTH the "real" site and the "virtual" site are in the personality (using the same site ID) it'll work just fine. You'd be better off using fixed ProScan however, because you can be explicit about which sites the radio should look at.

If the "virtual" site is not defined as a system in the radio's personality it'll never look at it, because the over-the-air information simply gives adjacent site channel number and site ID. There is no frequency information, unlike in P25.
 

mitaux8030

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You've raised an interesting point - I've not placed much faith in the dynamic proscan list. Sometimes it works as intended, other times it gets hung up on CCscan. I think I might return to the fixed scan list actually. The only problem is that for what ever reason if I want to stay 'camped' on a particular site, disabling system scan NEVER works with a fixed list, but SOMETIMES worked with a dynamic scan list.

I was just wondering how the dynamic list would handle an adjacent 'virtual' site - would the site 'broadcast' itself as a neighbour? Seems a bit counter-intuitive, but since the virtual site is just the same as the donor, except frequency - then I guess that's what would be happening?
 
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You've raised an interesting point - I've not placed much faith in the dynamic proscan list. Sometimes it works as intended, other times it gets hung up on CCscan. I think I might return to the fixed scan list actually. The only problem is that for what ever reason if I want to stay 'camped' on a particular site, disabling system scan NEVER works with a fixed list, but SOMETIMES worked with a dynamic scan list.

I was just wondering how the dynamic list would handle an adjacent 'virtual' site - would the site 'broadcast' itself as a neighbour? Seems a bit counter-intuitive, but since the virtual site is just the same as the donor, except frequency - then I guess that's what would be happening?

The adjacent site list is sent to the site from the IMC - I can't remember whether you can use IMC manager to send adjacency updates for itself to a site, but if you can that'd be how to make it work.

If a radio CC SCANs then all bets are off, ProScanwise anyway. You might want to adjust the parameters in the personality of the radio, specifically the transition level, and make it a much smaller number - the default values turn ProScan on at around -95dBm, where it actually works rather better if you make that somewhere more like -70dBm.

Hope that helps,
Enid.
 
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