Here you select which group id(s), or, even more selective, which radio unit(s) within the group will be tracked at a 'Go To Traffic Channel' (GTC).
Default, all fields are blank, so in that case every GTC will result in tuning the scanner to the traffic channel.
If only a prefix is entered, and the other fields left blank, all radio units within that prefix will be tracked.

E.g.: GTC  | Go To Channel - Voice      | (021)  Org: 1420  Tar: 1462
021 is the group id (aka prefix). 1420 (originator) and 1462 (target) are the radio units.


At a GTC, the radio units will switch to the assigned traffic channel. If the scanner also tunes to the traffic channel, this can be notified by a beep from the PC speaker, and/or a balloon popup from the system tray icon. The balloon only shows when using Windows XP or later. Windows 98 users will see a (little) popup near the tray icon.

Optionally, voice conversations can be recorded to a WAV file for later playback.

The naming of the WAV files is as follows: <sysid>_<prefix>_<date>_<time>_<org>_<tar>.wav

So the above mentioned GTC would be saved as: 5229_021_060219_193712_1420_1462.wav  if this was a conversation at 19:37 of the company with prefix 21 on the 19th of February, 2006.


When the minimize button is clicked, TrunkView will minimize to the system tray.
You can choose to have the Close button ([X]) behave likewise, to prevent accidentally closing the program.


By ticking this option, an incomimg ASCII formatted Short Data Message will not only be written to the logfile, but will also be shown in a popup from the tray icon.
Handy if you run TrunkView minimized: you will be notified of an incoming (ASCII) SDM.


Only tick this option, if monitoring a network that doesn't use the standard control channel codeword synchronisation sequence.


For Icom PCR-100/1000/1500/2500 users there are some manual settings that can be made:
1. Volume
2. Squelch
3. Filter bandwidth

If you want to set volume, squelch or filter bandwidth, add the following settings to the [RS232] section of trunkview.ini:

[RS232]
...
PcrVolume=<setting>
PcrSquelch=<setting>
PcrFilter=<setting>
...

Volume range: 0..255 (default: 100)
Squelch range: 0..255 (default: 127)
Filter bandwidth: valid settings are 00, 01, 02, 03, 04, 05 (default: 01 , 6kHz)
The defaults will do for most people.

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For Uniden users with a Dynamic Memory radio there is one manual setting:
Step size

The step size is needed when the radio is tuned to a frequency via RS232. The default value is 12.5 kHz and will do in most situations.
If you want to change the step size, add the following setting to the [RS232] section of trunkview.ini:

[RS232]
...
UnidenStep=<setting>
...

<setting> can have the following values: 625, 1000, 1250, 2000, 5000  (equals 6.25, 10.0, 12.5, 20.0 and 50.0 kHz).

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If you want to have your radio follow the frequencies that come with the MAINT messages, you have to add the following setting to the [Site] section of trunkview.ini:

[Site]
...
FollowMaint=1
...

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If you want to set a maximum voice channel that will be tracked (i.e. to avoid tracking dummy GTC messages), add the following setting to the [Site] section of trunkview.ini:

[Site]
...
MaxVoiceChannel=250
...

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To have a binary (i.e. hex) dump of HEAD messages, you have to add the following to the [General] section of trunkview.ini:

[General]
...
HeadBinDump=1
...

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If you have a problem muting the selected sound card you may have to specify the mixer to mute.
To do so add the following to the [Advanced] section of trunkview.ini:

[Advanced]
MixerId=0

(or a higher number)