The digital side is Kenwood Nextedge, is it not? Does this mean that only Kenwood mobiles can be used?
lh On Thu, Mar 25, 2010 at 10:47 AM, Jed Barton <[email protected]> wrote: > > > hmmm, tell me more about that one. Is that the combination analog / > digital? > Did the tkr750 go away? > > -----Original Message----- > From: [email protected]<Repeater-Builder%40yahoogroups.com> > [mailto:[email protected]<Repeater-Builder%40yahoogroups.com>] > On Behalf Of Maire-Radios > Sent: Thursday, March 25, 2010 10:22 AM > To: [email protected] <Repeater-Builder%40yahoogroups.com> > Subject: Re: [Repeater-Builder] Re: opinions for a public safety repeater > > also there is the NXR-710 that replaces the TKR-750 > > > > ----- Original Message ----- > From: Maire-Radios > <mailto:[email protected]<maire-radios%40verizon.net>> > > To: [email protected] <Repeater-Builder%40yahoogroups.com> > <mailto:[email protected]<Repeater-Builder%40yahoogroups.com>> > > Sent: Thursday, March 25, 2010 9:56 AM > Subject: Re: [Repeater-Builder] Re: opinions for a public safety > repeater > > > > > look at the new version of the TKR-740 the NXR-700 repeater it > is the way to go and get the ver 2 software. > > John > 727-441-3250 > > > > > ----- Original Message ----- > From: skipp025 <mailto:[email protected] <skipp025%40yahoo.com>> > To: [email protected] <Repeater-Builder%40yahoogroups.com> > <mailto:[email protected]<Repeater-Builder%40yahoogroups.com>> > > Sent: Thursday, March 25, 2010 8:37 AM > Subject: [Repeater-Builder] Re: opinions for a public safety > repeater > > > > > "Jed Barton" <j...@...> wrote: > > Hey guys, > > Need some input here. I'm putting together a public safety > > > repeater for my local FD. It's going to be really simple. > > Given the reliability factor, we're going with a Kenwood. > > Here's the million dollar question, i need some input. How > > > about a kenwood tkr750 or a tkr740. I've run several 750s > with > > great results. I have not played with the 740, but i know > it > > has an amazing receiver, but yet only pushes a few watts. > > Any suggestions for a good amp, perhaps Cresend i think it > is. > > Thanks, > > Jed > > Hi Jed, > > The Kenwood TKR-750 and TKR-740 are both great Repeaters. > The > TKR-750 also has an amazing receiver. Proper setup of the > receiver > should normally include the front end pre-selector alignment > > using a special coax cable jig assembly and a tracking > generator > properly configured and installed onto the PC-Board matching > > input and RF sample port/jack. > > Most people and Dealers tend to do the more casual "peak for > max > signal" method, which results in very usable but not the > absolute > best sensitivity and performance. I'm very much amazed how > many > repeaters we service with rather odd looking (on the test > equipment) "tweak and peak" front end alignment(s). So be > sure to > ask any Dealer what and how they prepare your equipment > before > they send it to you. > > The TKR-750 is more of a self contained ready to use > repeater > with a lot of built in features. Very popular for operations > > toward the 50 watt power level. > > The TKR-740 is more of "system repeater" meaning... how many > owners > often use them with external Power Amplifiers and > Controllers. The > TKR-740 has much less power output and normal operation > assumed by > most people is to include an external RF Power Amplifier. > > If you need to bark higher than a 50 watt signal onto the > air the > most popular method is to include (and use) an external RF > Amplifier. > > You can save quite a bit of serious money by using the same > external > amplifier configuration with a TKR-750 Repeater and a higher > drive > (input) level External Amplifier. There's nothing in stone > about > driving an external high power RF Amplifier at the 25 to 50 > watt > level compared to spending a lot more money on a low drive > level > amplifier. TPL, Cresend and TE can and will sell you higher > drive > amplifiers for much less money and you end up with pretty > much the > same end product. In the hopefully rare case where an > external > amplifier might fail, continued repeater operation at the > 25-50 > watt power level is quite usable versus the very low power > output > of the 740 repeater. There can be different advantages to > using > the TKR-750 or the TKR-740 Repeater. > > cheers, > skipp > > skipp025 at yahoo.com > www.radiowrench.com > > > > > > >
