Hey Steve, thanks for all your valuable information. I am still working on my project, I am using a CAT controller to give me the earth for Channel select on the Motorola Radio from a remote DTMF command, I will let you know how it works out. Do you have a private E Mail address or phone number?
Leroy J39AI. -----Original Message----- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of kd8biw Sent: Monday, April 05, 2010 1:47 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Re: Maxtrac Channel Control Leroy, Here is the file I received, and what I plan on doing... Our controller give us a "hex" output via 4 output pins. These 4 pins will be connected to pins 6,8,9, and 12 on the Gm300. This will give us selection of 9 of the 16 channels, enough for our needs! This will allow us to link to the primary 2M repeater in OUR county, plus 1 in each of the 7 surrounding counties, plus 1 simplex channel. Remember, you will need at least 2 pins grounded to make a channel, so some of the hex outputs will not work. When the correct DTMF access code is entered, followed by a number or letter, it translates it into hex and outputs it via the 5 pins, and latches that way. Even if power is lost, it will revert to the last know state. We will be using this to "steer" the GM300 via the drawing in the .pdf file I uploaded in the files section, look for the "ch-sel" file. I will program the GM300 and make a list of how to use it and distribute to the users. For example, entering the correct DTMF acces code, followed by a "3" would give you an output of "0011" in hex. This equates to channel 12 on the GM300. Here is how it all works out. It's not perfect, but I have an older controller that does not support direct control of radios, and it gives me control of 9 channels, more than enough for my needs! DTMF Digit Hex Output GM300 Channel 0 0000 1 (all outputs off, reverts to front panel control, which would be set to Ch1, the "home" channel) 3 0011 12 5 0101 10 6 0110 6 7 0111 14 9 1001 9 A 1010 5 B 1011 13 C 1100 3 Hope this is what you were looking for. Any questions, shoot them my way! Steve KD8BIW --- In Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> , "Leroy A. M. Baptiste" <leroybapti...@...> wrote: > > Hey Steve, what did you find out? I am also > interested in a system like that. > > Leroy. J39AI > > -----Original Message----- > From: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> > [mailto:Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> ] On > Behalf Of kd8biw > Sent: Saturday, March 27, 2010 3:01 PM > To: Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> > Subject: [Repeater-Builder] Re: Maxtrac Channel > Control > > > > Thanks for the informaiton everyone! I think I got > what I needed to make this work. The site is > pretty empty as far a repeaters go, 2 UHF, 1 VHF, > and a 220. Will make sure I don't interfer with > anything, but I only need 2 or 3 channels on the > radio. Thanks everyone for the replies and > information! > > Steve KD8BIW > > KD8BIW/R 224.580 > N8IHI/R 147.105 > W3YXS/R 146.745 > KD8JBF/R 444.325 > > --- In Repeater-Builder@yahoogroups.com <mailto:Repeater-Builder%40yahoogroups.com> > <mailto:Repeater-Builder%40yahoogroups.com> , > "kd8biw" kd8biw@ wrote: > > > > Hello everyone, > > > > Wondering if anyone has been able to implement a > Motorola Maxtrac as a "frequency agile" remote > base on a repeater. What I would like to do is > have a 16 channel VHF mobile hooked to our > repeater, and be able to select a channel at will. > I'm sure it can be done, i'm just overlooking > something here. Our controller has a 4 pin hex > output that I think could do the necessary stuff > to make it work, just not sure about how it needs > hooked to the radio. Has anyone done something > similiar to this? I was looking at NO6B's RBI, and > that would fit the bill, just wondering if I could > make it work with our controller (MCC RC-100) or > would I have to get a different controller (CAT or > LinkCom)? Thanks all! > > > > Steve KD8BIW > > > > KD8BIW/R 224.580 > > N8IHI/R 147.105 > > W3YXS/R 146.745 > > KD8JBF/R 444.325 > > >
