Re: Low Band Antenna for both 6 & 10 meters. > Scott Zimmerman <n3...@...> wrote: > Skipp, > How did you work the antenna scheme for this radio?
Hi Scott, There are a number of available options. First, I've seen but do not own one of the Comet/Diamond multi-band antennas that does cover both bands plus. I saw one on the back of a guys car at a local flea market and he said it covers multi-bands including both 10 and 6 meters. Don't remember if it was a Comet of Diamond but it was one of those two brands. Another method is to diplex two antennas for each band if you only want to operate within the range of the antennas. There is another trick to cut the antenna long and use a band-width expansion box as previously sold by Antenna Specialists. Probably discontinued by this time... A method to obtain bandwidth at the cost of performance is to use a shortened vertical with a fairly lossy matching network. It's a big time trade and well out of the scope of an easy explanation here on the group. And in a no good deed goes unpunished application I have something similar to an improved Maxcon Antenna Matching unit talking to a number of vertical whips I can swap in and out. An acceptable very wide bandwidth SWR talking to a very lossy antenna matching system & antenna is better than no antenna a'tall. > Did you use the Motorola docs, or some other method? The Catholic Church says only the rhythm method is allowed. http://en.wikipedia.org/wiki/Calendar-based_contraceptive_methods > In my app, I am going to be using a Syntor X on 6 and > 10. I was going to use a controller UF output to control > a RF relay for the correct antenna based upon what > channel the remote base was set for. This leaves room > for error both on the part of the controller and idiot > doing the programming. (Me) It sure would be nice to > have an RF solution (the Motorola cut length cable method) > or an internal radio logic way of doing this. You can band detect the RF and coax tr-relay hot switch in the other ranges if you wanted to be that creative. Another option I just thought about is asking a Company like LDG if they make a tuner covering VHF through 6 meters. > P.S. I do have a copy of Motorola 68-80100W86 - Diplex > Antenna Manual. This document is written for use with > "standard base-loaded mobile antennas only." Is it scanned into or available in a PDF file format? I'd really like to see a copy if it's available and easily Emailed. Always nice to see how others do things... > Scott cheers, s. aka Rubber Chicken... > > skipp025 wrote: > > However, you can get a tk-6110 to do both 10 and 6 meters in > > the same radio. I personally have done the mod a few times, > > it's not super easy but it can be done. >
