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Feature Request: Auto site switching, using preprogrammed, and adjacent site data #122

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Nokoa opened this issue Sep 13, 2021 · 1 comment

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@Nokoa
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Nokoa commented Sep 13, 2021

Interested to use OP25 in a car to scan between all or some talkgroups, on a large P25 Phase 2 system. This is a very large system with 200+ sites, while driving it becomes really difficult to operate with a scanner, because the sites don't transmit to long distances, and you constantly have to find a new site.

On the Motorola APX it appears that the radio decodes the adjacent sites details, and switches between them as you move around by checking their signal strength. Motorola also offers preferred site options for talkgroups. It appears to lock onto a site based on its signal strength and some other factors. While a scanner may scan between all sites programmed that meet the squelch level, but not lock to any unless the user holds. This is difficult when I don't have all sites discovered yet, and when there is an enormous amount of sites programmed that the scanner has to go through.

The idea of what I was thinking is something that can operate headless, and autonomously switch between sites based on their signal strength and utilize the adjacent site details to find nearby sites once the currently monitored site becomes weak. Right now I am interested to scan all talkgroups available on all sites. Having a preferred sites options could also be helpful in this case to prevent locking onto sites that only have very few talkgroups active on. This can be helpful when the user knows that a specific site doesn't serve the talkgroups in the whitelist while another one in range might do so.

@boatbod
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boatbod commented Sep 17, 2021

Sounds fancy and certainly has merit, but presently the app can't accurately determine RSSI so building all the rest of the logic would be rather problematic.

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