Monitor the frequency on your department's radios to see if you hear anyone else on it (like the users of the '451.725' repeater).
Second, you can monitor the power of the '451.725' repeater and see if it keys up when you key up on your radios. If it does, it is mismarked or the frequency was changed (very common if interference showed up on the original frequency). You didn't say who the user was supposed to be of the '451.725' repeater. If yours is not at the site (and another test you can do is unplug the '451.725' repeater and see if your radios 'go dead' - again indicating that the labelled frequency is wrong), then you will have to try to find someone to DF your repeater's location. It's easy to do if you have the right equipment. Joe M. Christopher Hodgdon wrote: > I wish I had a picture of the repeater house. The frequency listed on the > MTR2000 is that of the schools maint. department. The other MTR2000, hook to > the other antenna, is the Schools PD. I know those for a fact. Now its time > to locate the other repeater system. > > The only odd ball thing I do know is that every once in a while, when a bus > is talking to another bus or dispatch, you get a high squeal walk on over > them, but its most likely another drive not paying attention and trying to > key their radio. But I wonder if it might be the maint. since their > frequency is so close to ours. > > --- In Repeater-Builder@yahoogroups.com, "Gary" <n6...@...> wrote: >> The UHF repeater is likely mismarked or the frequency info you obtained for >> your school's license is inaccurate. The UHF repeater is likely the school's >> repeater. As mentioned earlier the MTR2000 is a multi-channel radio but can >> only repeat on the channel it is left on. Recommend you find a dealer or >> tech experienced with the MTR and who has the software necessary to >> configure it. Have them download its codeplug. Recommend you do the same >> with your school radios. A comparison of the data will likely answer a lot. >> Gary >> >> -----Original Message----- >> From: Repeater-Builder@yahoogroups.com >> [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Christopher Hodgdon >> Sent: Thursday, August 13, 2009 4:29 PM >> To: Repeater-Builder@yahoogroups.com >> Subject: [Repeater-Builder] Re: Motorola MTR2000 Question >> >> Here's the deal, I work for a local school district, I have been kind of >> thrust into a temp. communications specialist position while we obtain some >> new buses and working with the company that will be adding the new radios to >> them. >> >> Over the last few weeks, we have been trying to determine the location of >> our repeater. The place were it is listed on the FCC license paperwork does >> not exist. I know, I am pushing them to get it updated. But that is >> another story all together. >> >> I do have access to a "radio house" located at our high school football >> field and it has two MTR2000 in it, plus two different antennas. One >> connected to one radio and one connected to the other. >> >> One radio is marked with the description of KISD PD, which is our police >> department for the district and has the following frequency pair listed on >> it: >> >> VHF: RX 173.325 DPL 331 and TX 158.385 DPL 331 >> >> The other radio is marked the following: >> >> UHF: 451.725 / 456.725 >> >> There is no documentation with this equipment, the person incharge of them >> originally left the district some years ago and no one knows anything about >> them, expect where they are located, as far as these two boxes go and what >> frequencies that have listed. >> >> >> Which brings me back to our department, we can find out repeater located >> anywhere physcially. Our repeater pair is listed as: >> >> UHF: 451.750 / 456.750 >> >> That is according to FCC, repeater listing and other information I have been >> able to obtain and by listening to it on a UHF amateur radio to see which >> frequency they were on. >> >> That being said, it is possible that the MTR2000 that is marked with the one >> UHF frequency, might actually have both pairs programmed into it, but only >> one can run at a time, right? >> >> Is there a way to find out if there is more than one frequency is programmed >> into the unit and if so, how might we go about that? Another reason I am >> asking is that we might be upgrading our system in the very near future and >> I might be able to get my hands on these repeaters. >> >> Thanks in advance. >> >> --- In Repeater-Builder@yahoogroups.com, Brian Raker <brian.raker@> >> wrote: >>> The radio can be programmed for multiple frequency pairs. That being >>> said, it cannot operate more than one channel / programmed pair of >>> frequencies at one time. >>> >>> -Brian / KF4ZWZ >>> >>> On Thu, Aug 13, 2009 at 3:23 PM, Christopher >>> Hodgdon<chris.hodgdon@> wrote: >>>> This is a question I have been asked and don't have an answer for. This >> could be for either amateur operation or commercial operation, but it >> relates to the repeater itself. >>>> Can a Motorola MTR2000 setup on UHF be setup to function as a repeater >> on more than one pair of frequencies? I know looking at the brochure on the >> website, it says that the NO. of Frequencies are upto 32. >>>> Does that mean it can handle two different sets of repeater pairs at the >> same time in the same radio? >>>> These are commercial frequencies I am listed at commercial, but they are >> for example purposes: >>>> Can the following setup work with the MTR2000? >>>> >>>> Frequency Pair 1: 451.725/456.725 >>>> Frequency Pair 2: 451.750/456.750 >>>> >>>> Can one MTR2000 handle both of these at the same time? >>>> >>>> Thank in advance. >>>> >>>> >>>> >>>> ------------------------------------ >>>> >>>> >>>> >>>> Yahoo! Groups Links >>>> >>>> >>>> >>>> >> >> >> >> ------------------------------------ >> >> >> >> Yahoo! Groups Links >> > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > > > ------------------------------------------------------------------------ > > > Internal Virus Database is out of date. > Checked by AVG - www.avg.com > Version: 8.5.387 / Virus Database: 270.13.38/2274 - Release Date: 07/31/09 > 05:58:00 >
