[Repeater-Builder] Re: Motorola Maratrac...
One of my UHF repeaters functioned with a Maratrac transmitter for over a year, very light duty cycle and the wattage was turned down. Well, it eventually went out so I installed a second, the output was set as it came in at about 100 watts, didn't last 3 days. The UHF Maratracs were cooled by three large fans, doesn't matter, they are designed for a light duty cycle. Unless you are sure about the duty cycle and lower wattage output, using a Maratrac wouldn't be recommended. I tried both the RICK and a standard controller, didn't like the rick unit for the interface or the audio. My preference is a small controller like the RC1000 by MCC. The Maratrac is easy to interface as a repeater transmitter if you have the A7 control head. Travis AA9NV --- In Repeater-Builder@yahoogroups.com, Mike Morris WA6ILQ wa6...@... wrote: At 03:11 PM 06/19/09, you wrote: I have a VHF Moto Maratrac and was thinking about using it for a mobile repeater since it is programable. Can I change the relayed SO-239 to a regular SO-239 for recieve and add another SO-239 in the side for Transmit and it work like that. If this will work I am looking at purching several more VHF and UHF Maratrac for a EMCOMM Trailer. Thanks, Grady Evans When you get down to the basics a Maratrac is a Maxtrac with a power amp and a fancy control head. As such it is a single synthesizer radio and will never duplex. It is also a limited duty cycle radio - the heat sink is too small for continuous duty. I suggest you review the basic Maratrac info at http://www.repeater-builder.com/motorola/maratrac/maratrac.html and then (since the receiver and exciter in a Maratrac is a Maxtrac) look at the Maxtrac info at http://www.repeater-builder.com/maxtrac/maxtrac-index.html The Maratrac will function as a repeater transmitter but only in a LOW duty cycle environment (in fact, the manual for the RICK repeater controller box specifically mentions that - but as the M400, which is a Maratrac in Radius drag). Mike WA6ILQ
Re: [Repeater-Builder] Re: Motorola Maratrac
After turning the power down, make sure you press F8 to save that value to the radio; otherwise when you exit RSS, the radio will revert to the power level that it knew about, not the value you just thought you set it to. Bob M. == --- dy3mnk [EMAIL PROTECTED] wrote: Thanks Gary for replying so soon on my post. Ive done what u say on the RSS and yes the power turns down while the its connected to RSS. The problem is when u disconnect the maratrac from RSS and check the power output on power it goes back to the original 100w. IM i Missing something or is there something to do on the RSS? thnaks Lowell -- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: It's been a while since I've done this Lowell but check the SERVICE menu for an output power adjustment. I think it's F2 from the RSS main menu. I used to turn down my Maratracs alot to increase duty cycle so I know it's there. Gary dy3mnk [EMAIL PROTECTED] wrote: Hello, I have 2 VHF motorola maratrac units and wants to put them as a repeater. I manage to program the unit to HAM Bands. but I can't turn down the power output. Its a 100w output on both unit, Iwant tpo turn them down up to 30w. How can I trim down the power? Is It done in programming? How is it done? Any one out there who can teach me how to do it and help will be appreciated very muchThanks Lowell Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping
RE: [Repeater-Builder] Re: Motorola Maratrac
In addition to the software, the UHF has two power control pots inside the radio. I'm not sure about the VHF. I have one but, it's been mounted and operational for years. I will go look this afternoon if you need me to. Jimmy, KS4KX _
[Repeater-Builder] Re: Motorola Maratrac
Thanks Gary for replying so soon on my post. Ive done what u say on the RSS and yes the power turns down while the its connected to RSS. The problem is when u disconnect the maratrac from RSS and check the power output on power it goes back to the original 100w. IM i Missing something or is there something to do on the RSS? thnaks Lowell -- In Repeater-Builder@yahoogroups.com, [EMAIL PROTECTED] wrote: It's been a while since I've done this Lowell but check the SERVICE menu for an output power adjustment. I think it's F2 from the RSS main menu. I used to turn down my Maratracs alot to increase duty cycle so I know it's there. Gary dy3mnk [EMAIL PROTECTED] wrote: Hello, I have 2 VHF motorola maratrac units and wants to put them as a repeater. I manage to program the unit to HAM Bands. but I can't turn down the power output. Its a 100w output on both unit, Iwant tpo turn them down up to 30w. How can I trim down the power? Is It done in programming? How is it done? Any one out there who can teach me how to do it and help will be appreciated very muchThanks Lowell Yahoo! Groups Links
