RE: [Repeater-Builder] Remote Receiver site
So far Kevin's idea of GE Master II's is the one I like best. We use Master II's for the repeaters so this makes a lot of sense. Now to scrounge up some equipment to make it all work... _ From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of Kevin Custer Sent: Friday, January 08, 2010 5:39 AM To: Repeater-Builder@yahoogroups.com Subject: Re: [Repeater-Builder] Remote Receiver site John Szwarc wrote: I'm looking for some advice on constructing a remote receiver site. Ideally I'd like to have everything contained in one neat package just like at the repeater site. We'd be receiving on VHF and transmitting the link signal on UHF back to the repeater site.Any thoughts? Here's one... GE MASTR II mobile - VHF Receiver, UHF FM Exciter (and PA if necessary). Modify the audio path for flat audio and use an AP-50 for modulating the exciter. If you want or need a controller, use one of the plug-in NHRC models. Makes a nice little package and the sound will be excellent so the voter can do it's job well. FM exciters on UHF in the MASTR II are a little scarce. Use the following article to change the common phase modulated UHF exciter to FM: http://www.repeater http://www.repeater-builder.com/ge/mastrII/ap-50-fm-mastr2.html -builder.com/ge/mastrII/ap-50-fm-mastr2.html Kevin Custer No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.432 / Virus Database: 270.14.129/2606 - Release Date: 01/07/10 19:35:00
Re: [Repeater-Builder] Remote Receiver site
John Szwarc wrote: I'm looking for some advice on constructing a remote receiver site. Ideally I'd like to have everything contained in one neat package just like at the repeater site. We'd be receiving on VHF and transmitting the link signal on UHF back to the repeater site.Any thoughts? Here's one... GE MASTR II mobile - VHF Receiver, UHF FM Exciter (and PA if necessary). Modify the audio path for flat audio and use an AP-50 for modulating the exciter. If you want or need a controller, use one of the plug-in NHRC models. Makes a nice little package and the sound will be excellent so the voter can do it's job well. FM exciters on UHF in the MASTR II are a little scarce. Use the following article to change the common phase modulated UHF exciter to FM: http://www.repeater-builder.com/ge/mastrII/ap-50-fm-mastr2.html Kevin Custer
RE: [Repeater-Builder] Remote Receiver site
I've used GE mastr 2. swap out UHF receive section with a VHF receiver. Duplex radio and your all set. Lots of guys do this for split site 6 meter repeaters. I think you can find that info on the repeater-builder website some where. Mike KA2NDW -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com]on Behalf Of John Szwarc Sent: Thursday, January 07, 2010 10:26 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Remote Receiver site I'm looking for some advice on constructing a remote receiver site. Ideally I'd like to have everything contained in one neat package just like at the repeater site. We'd be receiving on VHF and transmitting the link signal on UHF back to the repeater site.Any thoughts?
Re: [Repeater-Builder] Remote Receiver site
We are using Motorola CDM-750's for our sites. Mount both radios to a 1U 19 rack shelf, and using a 4 hole saw, cut a hole below the TX radio and mount a 4 Dayton 24vdc fan, they run forever! We simply use the Motorola R.I.C.K. for our controller so to speak. Simple and reliable. With the flexibility of the CDM's, we program them for ignitiion sense on/of switch so they come back on automatically after a power outage. We can also use the controller at the central site to turn off the requirement for PL at all remote sites with one simple command. Simply program one pin for PL CSQ Detect on the receive radio. Program your radio for PL tone receive only, then leave the radio in monitor mode (yes, if you lose power it will come back up in monitor mode). This way the site hears all traffic, PL or no PL. Then, program the TX radio so that a pin controls the PL encode and feed the PL CSQ detect into the PL encode control pin. The link radio will TX a PL if a PL is received, and will not if none is received. Back at the site, program your receive radios the same way as your receive radio at the site. Then you can feed your CSQ PL detects from your sites into an or logic switch so that if it receives a PL from any site, it sends a single PL to the controller. We ended up using the 420.xxx and 425.xxx link frequencies, though, to try to alleviate any interference. The CDM radios (if you get the right one) will do 403-470 MHz without a problem, no mods needed. So far we've been using these for about 4 years with no problems whatsoever. On Fri, Jan 8, 2010 at 6:21 AM, Mike DeWaele mdewa...@seneca24.net wrote: I've used GE mastr 2. swap out UHF receive section with a VHF receiver. Duplex radio and your all set. Lots of guys do this for split site 6 meter repeaters. I think you can find that info on the repeater-builder website some where. Mike KA2NDW -Original Message- *From:* Repeater-Builder@yahoogroups.com [mailto: repeater-buil...@yahoogroups.com]*on Behalf Of *John Szwarc *Sent:* Thursday, January 07, 2010 10:26 PM *To:* Repeater-Builder@yahoogroups.com *Subject:* [Repeater-Builder] Remote Receiver site I’m looking for some advice on constructing a remote receiver site. Ideally I’d like to have everything contained in one neat package just like at the repeater site. We’d be receiving on VHF and transmitting the link signal on UHF back to the repeater site.Any thoughts? -- James Adkins, KB0NHX Vice-President -- Nixa Amateur Radio Club, Inc. (KC0LUN) www.nixahams.net Southern Missouri Assistant Frequency Coordinator - Missouri Repeater Council www.missourirepeater.org The Nixa Amateur Radio Club - There is no charge for awesomeness! (Well, only $1.00 per month)
Re: [Repeater-Builder] Remote Receiver site
GE MVPs are the best answer I've found hands down. Swap a VHF RX in a UHF frame. You can use a MastrII or ExecII for the TX site and it's all very neat. Even cooler - MastrII RX and TX's convert to 220 pretty easily. While the conversion is not for the faint of heart, 220 links are cool. On 1/7/2010 9:26 PM, John Szwarc wrote: I'm looking for some advice on constructing a remote receiver site. Ideally I'd like to have everything contained in one neat package just like at the repeater site. We'd be receiving on VHF and transmitting the link signal on UHF back to the repeater site.Any thoughts? -- mailto:o...@ozindfw.net Oz POB 93167 Southlake, TX 76092 (Near DFW Airport)
