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I had bought a pair of Hustler MRMBNC mag mount mobile scanner antennas months ago for my scanners, but since I was moving soon I never did anything with them. Well, I unpacked them the other day and decided to try hooking them up to my Antenna Analyzer today and see what turned up. They actually did quite amazingly well on GMRS, especially on the repeater transmit frequencies. My SWR readings were in a tight range of 1.06:1 to 1.09:1 and this was without any tuning. The results were a very pleasant surprise because I thought they would have been in the barely acceptable range and would need some serious tuning, but evidently I don't need to do a thing. For those who don't want a permanent install (like me) this may be a very viable and cost effective option. When I bought these, it was a pair in one auction which I won for around $18.00 +5.50 shipping. I see they are going for about $22 each on various sites around the internet, and the ones on ebay are sky-high at the moment. You will probably need an adapter from a BNC connector to whatever type connector is on your radio. I have a Radio Shack scanner antenna around here somewhere and will have to check that one out next when I find it.

Anyone remember these from the late 1960's ? Tompkins Radio Products - Tuneaverter - Made any AM car radio into a VHF monitor radio. Car radio antenna plugged in to the back of the converter and a jumper from the converter plugged into the antenna jack on the AM car radio. Ran off one 9 volt battery, has tune range of 150 to 170 mhz and one crystal position. If using the crystal, the tuning dial then became a peaking control. Mine still works on the test bench... however, since this was mainly a tuneable wideband device, MANY different signals are all received at once because it was not very selective.