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Unfortunately, you didn't specify if you needed assistance with programming digital or conventional radio systems.. but here is the info for conventional systems. Since a conventional system is really a collection of frequencies, the
first thing you need to know is the frequency for each channel you want
Yes, it seems to me that the GM300 radios did have tones as programming options. They were programmed by the dealer using radio service software (RSS) when the frequencies and other channel information were entered. Of course, Motorola discontinued the GM300 a long time ago, and they were wide-band radios, so you could not legally transmit with them anymore. However, you could find someone on eBay to program them receive-only with or without CTCSS (PL) tones and then you could simply listen to them.
Have you put in more than one control channel for your area.
I always put as many of the red or blue Control channels in my area. I counted 23 Control Channels for the whole system. I would put everyone in if it were me.
I set the system up as "Control Channel Only".
In a metroploitan area you should be able to pick up another control channel on the system.
I use the Arc396Pro Software ato program my scanner. (available at ScannerMaster) I know in the Pro version you can download the information directly into your scanner. You can try this to be sure your settings are going in correctly.
The only legal way you can get the software is to buy the software from Kenwood or one of its dealers. Since the radio is old and not longer supported Kenwood no longer sells the software and no agent is going to have legal copies of software to sell. So from a legal standpoint you can not program the radio. If however your willing to be a software pirate and ignore a corporate copyrighted piece of software, you can find software on the net and sometimes on ebay. nuff said on that.
Forth: the tk-840 is a nice radio, can be found pretty cheap, will do trunks or conventional groups. The only big problem with the 840 is scanning. It scans "ODD" instead of scanning a range of channels, it scans a single channel in a group. You can have only 1 channel is a group scanned. Kind of like scanning columns instead of rows. If you only need 32 channels you put 1 channel per group and you will not get confused.
Its so easy to use you really don't need a manual for the Uniden BC 142XL scanner.
Turn it on. Push the MANUAL button to stop it from scanning.
Push number 1, then push MANUAL again. This should leave you on
Using the keypad enter the frequency you want to monitor, then push
E. Press REVIEW at anytime to see what frequency is programmed
there. If the review button flashes 000.0000 on the display, you might be entering an invalid frequency. Refer to the frequency coverage list below.
Push MANUAL to step to channel number two. Enter the frequency. Push E. Push MANUAL to step to channel three. Repeat this process until
all ten channels are programmed, or you've run out of frequencies to
Push "SCAN" to start automatically scanning the frequencies. The
radio will stop when it hears someone talking, and resume scanning two
seconds after the conversation has stopped.
20 to 29.7 MHz (10 Meter "Ham" Band)
29.7 to 50 MHz (VHF Low Band)
50 to 54 MHz (6 Meter Amateur Band)
136 to 144 MHz (Military Land Mobile)
144 to 148 MHz (2 Meter "Ham" Band)
406 to 420 MHz (Federal Government Land Mobile)
420 to 450 MHz (70cm "Ham" Band)
450 to 470 MHz (UHF Standard Band)
470 to 512 MHz (UHF "T" Band)
For a comprehensive database of active frequencies in your area, visit
first press man, then the channel number you want to fill, then man again, then pgm or program, type in the frequency, and hit enter ( could E or ent). next repeat this process for the next channel you want to program.