Tom, You must be talking about really old MOT radios as all the recent stuff use N connectors on the repeaters/base stations and mini-UHF on mobiles. The HT1250 our company bought had mini-phone to female BNC adapters for connection of external antennas (HT1250 is a VHF HT). You may be able to specify UHF when ordering new base/repeaters but not standard these days.
Ed - KL7UW 30-years as radio tech 15-years mw engineer ------------------------------ Message: 22 Date: Thu, 22 Jul 2010 15:21:20 -0400 From: "Tom W8JI" <[email protected]> Subject: Re: [Elecraft] So-called "UHF" connectors... To: <[email protected]>, "elecraft" <[email protected]> Message-ID: <c410489ab851471eb4f5f1399be0e...@tom0c1d32a93f0> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original > inside....but I do think that the issue with standard "mud" type UHFs is > with the durability of the dielectric, not with the impedance bump, at > HF and even low VHF frequencies. That's an accurate statement John. The largest bump I've even measured with a SO239 PL259 pair was about 1.05:1 at 147 MHz. The highest SWR with two in tandem, with optimum spacing between bumps to enhance SWR error, was around 1.1 :1. Like Motorola and other have done in the past, I think nothing of a few UHF connectors on 2 meters. Barrel connectors can be a problem at VHF, because they can have a long mismatch area, but not properly installed UHF pairs or good short barrels. That goodness length matters, because look at the horrible mismatches in wiring inside our radios and tuners. 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-QRT*, 432-100w, 1296-QRT*, 3400-fall 2010 DUBUS Magazine USA Rep [email protected] ====================================== *temp ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
