Get one of Sinclair's offerings similar to this model. It will take care of the the broad frequency range problem. http://www.sinclairtechnologies.com/catalog/series.aspx?id=280 Sometimes the obvious problem isn't a problem at all. Dan N8DJP 4c. Re: GMRS & UHF Ham Repeaters Sharing an Antenna Posted by: "Eric Lemmon" [EMAIL PROTECTED] wb6fly Date: Mon Nov 13, 2006 7:01 pm ((PST))
Bob, Most of the posted replies seem to ignore the obvious incompatibility issue: GMRS and 70cm Amateur transmitters operate in different bands! Generally, a repeater antenna should be resonant at the transmitter frequency, since the receiver is usually much less picky. So, the issue is really one of finding an antenna that is equally efficient at a GMRS frequency of 462.575 MHz as it is at 444.200 MHz, and THEN finding a way to properly match the antenna for two disparate services. I am not aware of any antenna that will work efficiently on two such widely-spaced frequencies. Even though it may be possible to jury-rig two repeaters so that they can share an antenna that is a poor match to either, is this a good idea? A properly-engineered system would likely use two antennas, one for each system. My concern is that the respective duplexers will not be driving similar or even properly-matched loads. I guess I'm just not used to solving complex design issues with a "cheap 'n' dirty" solution... But hey, it's worth a try, right? Please report the results. 73, Eric Lemmon WB6FLY --------------------------------- Everyone is raving about the all-new Yahoo! Mail beta.
