Tom, The last TKR-750 repeater I worked on was about three years ago. Since then, there have been some changes in the design of the unit, and others may be able to describe those changes.
Although I advised a local radio club to purchase the K2 version, which tunes 136-150 MHz, the buyer ordered the K version, which tunes 146-174 MHz. It was a moot point, because the club's coordinated frequency was a 147 MHz pair. If you are going to use a 145 MHz pair, this would be important. The front end bandpass filters of the repeater's receiver must be manually tuned before placing the repeater in service. You wouldn't know this if you didn't have a copy of the service manual, because the installation/operation manual that comes with the radio doesn't mention that fact. This is easy to do with a service monitor. The TKR-750 can put out 50 watts, but it is rated at 25 watts for continuous duty. The internal fan controller should be set to run the fan only when it gets hot, and not continuously. The fan will die sooner that you expect if run continuously, and it will pull a lot of gunk and dirt into the radio. An external power supply is required. The repeater has a very capable built-in controller, with all of the bells and whistles. However, if you are going to use an external controller, be certain to disable several dozen default "features" of the built-in controller, or it will interfere with the external controller. The KPG-66D programming software is not very user-friendly, and some of the important functions are hidden so well on obscure menus that you might never find them except by accident. On the plus side, I will say that all of the TKR-750 repeaters I have set up for Amateur Radio use are still on the air and free of any major problems. That's pretty good for a low-cost repeater. 73, Eric Lemmon WB6FLY -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Wood Sent: Wednesday, September 12, 2007 4:42 AM To: [EMAIL PROTECTED] Subject: [Repeaters] VHF Repeater Hi all. I am looking for some information on the Kenwood TKR-750 repeater. Is there anyone who has experience with this unit? Right now I know nothing about it firsthand. I think it will run 50 watts into the duplexer and I assume it requires an external power supply. Our old GE MasterII was destroyed by fire yesterday...........The building it was in burned to the ground! Any info would be appreciated. 73, Tom Wood, n4cid Dunn, NC ______________________________________________________________ Repeaters mailing list Home: http://mailman.qth.net/mailman/listinfo/repeaters Help: http://mailman.qth.net/faq.htm Post: mailto:[EMAIL PROTECTED]
