We page 17 volunteer fire departments on UHF through four repeaters with 17 different tones, all four repeaters use the same frequency, just different input pl's. The problem comes whenever any two repeaters is keyed at the same time. if they would use two different frequencies, you could easily cross patch the two repeaters on a central console and achieve the desired result without heterodyning. this happens to be how our deputies are operating right now over three repeaters on three different freq's. I'm sure that someone will tell you that the same freq can be used if the transmitters are carefully tuned and such, but realistically how long will they stay that way, anyway maybe you should consider the two freq option, as the sequential page gives a slight delay in someone getting the message. talk toyour frequency coordinator to see if it is a posibility, i got three vhf pairs to do the cross patching a little over a year ago, and it took about six months but it was worth it.
On Tue, Nov 24, 2009 at 7:11 PM, Ian Wells <[email protected]> wrote: > > > Hi guys .We have aprox 8 separate repeaters with links back to a > central site allowing every thing to be broadcasted over all sites at the > same time.When one repeater feeds into another and then onto another then > delay problems come into the picture. > > Thank You ,Ian Wells > Kerinvale Comaudio, > 361 Camboon road, Biloela.4715 > Ph 0749922449 Mb 0409159932 > Hm 0749922574 Fx 0749922767 > www.kerinvalecomaudio.com.au > > *-------Original Message-------* > > *From:* MCH <[email protected]> > *Date:* 11/25/09 10:20:03 > *To:* [email protected] > *Subject:* Re: [Repeater-Builder] Simulcasting of Repeaters > > > > Most likely they dispatch in sequence - over one repeater than over the > other. > > Joe M. > > Kris Kirby wrote: > > On Tue, 24 Nov 2009, Tim Ahrens wrote: > >> But when the dispatcher was sending tones to both repeaters, isn't > >> that simulcasting? That would be the only time that I could see any > >> kind of issue, as the mobile/portable units wouldn't be transmitting > >> on both at the same time. > > > > How is it that the dispatcher -- who is unable to alter the radio's > > settings by law -- is able to send two different PLs at the same time? > > > > -- > > Kris Kirby, KE4AHR > > Disinformation Analyst > > > > > > ------------------------------------ > > > > > > > > Yahoo! Groups Links > > > > > > > > > > ---------------------------------------------------------- > > > > > > No virus found in this incoming message. > > Checked by AVG - www.avg.com > > Version: 9.0.709 / Virus Database: 270.14.81/2524 - Release Date: > 11/24/09 14:37:00 > > > > > > -- Major John Gleaton Escambia County Sheriff's Office [email protected] 251-241-9203
