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"Frank" wrote in message news:01c3af08$bd0f46c0$0125250a@wpyhrsvbedcscngy ...
FAE LLV#11 .. . ^ I'm a little confused here.....there are at maximum 10 ^ freqs per group. What's a group? I'll assume it is a group of frequencies assigned to a communications subsystem. ^ However there are approx. 40 channels listed. What is a channel? Normally "channel" refers to a communications path. Historically a channel was either a single frequency for either simplex or half-duplex communications, or two frequencies for full-duplex communications. Today there are several other types of channels. In a trunking system the talk group is the channel. The radio operator selects the talk group with a channel selector and the computer system spreads those communications over one or more frequencies. Those frequencies are the "group" referred to above. The frequencies are entered into the computer, and the scanner, in a certain order and are assigned numbers indicating that order. These are then referred to as "logical channels". ^ What is my best approach for identifying all 40 channels? What do you mean by "identify"? Identify the function of the talk group (channel) or identify the talk group code? You can find all the talk groups that are being used by leaving the scan bank in the open mode (FUNC 5). This will scan all channels (talk groups). When the radio stops on a channel in use the talk group code will appear on the display. If you press TRUNK while it is being displayed the radio will enter that talk group into its list of talk groups. Then if you set the bank to the closed mode (FUNC 5 again), only those talk groups in the list will be listened for (unless they are locked out). When a bank is "open" a + (plus) is displayed below the bank number in scan mode. When the bank is "closed" a - (minus) will be displayed instead. When a bank is set to ED (EDACS) mode you can still enter other non-trunking (conventional) frequencies in that same bank following the trunking frequencies and those conventional frequencies will be scanned normally. Open and closed do not affect conventional frequencies in the bank, it only affects the trunking talk groups. If you have trunking frequencies (marked as mode ED or not) and the bank is not set to mode ED, those frequencies will be treated as if they were conventional and the trunking system will not follow channels (talk groups). For trunking to work the bank must be set to ED (PROGRAM, TRUNK, MODE). If by "identify" you meant the function of a talk group (channel) then that is done either by listening to the channels and figuring it out on your own or by getting a list from some one who knows. I hope I've answered your question in there somewhere. Frank Ok let me try this again.....there are 6 groups of freqs. for the riverside county sheriffs dept. these are apparently broken down by repeater sites. each has a channel "1" in them. If I wanted to monitor more than 1 group of freqs. for a different geographical area. Would i need to put them in a different bank to keep with the channel 1 being first in the bank? I found the information for the DEC display for the edacs on another website, at least I have an idea of whos talking now. |
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