Batboard

Somewhere I remember that Motorola had an instruction sheet for cutting phasing stubs to enable you to tune 2 different low band ranges on one antenna. Anybody remember such a procedure?

No I do not. But I have had fair sucess with the "Wide Band" low band 34-40mhz mobile antenna from Antenx(CW34). It uses a transformer and a 62 inch whip. Hope this helps.

http://www.antenx.com

I work closley with Comprod out of Canada and they make a wide band low band that does 12 mhz, in a section of your choice, we also have a wideband VHF, 19 MHZ without any trickery, these antenna's really work, we sell them to the federal govt. and they love them, we don't mass produce but go after the niche market that no one else wants to make good stuff for, we also do disguise am/fm look a like that we sell to the feds,, that also really work, not like a S__O. No Nmaes

Let me know if you have need of these products.

Stan

Hello.

The common military radio runs 30MHz to 80MHz.
The antenna clearly NEEDS to cover this range, sometimes more, the trick, the new radios use a tuner that self-resonates, the older stuff, a mechanical tuner.
Think of a long wire, now put a coil and cap on it, like an antenna tuner, taps on the coil, set switching by the VSWR, this is what works.
You can build one with a 12 position, 2 pole rotary switch, and a small gearmoter, this I put in a piece of PVC plumbing, 2 caps on the ends with nuts that thread onto the top of the base mast and bottom of the top section, center loaded antenna, what started as a combo CB and 10 meter works from 26MHz to 76MHz, no problem, the tuner was built for around $50. this thing has worked well for the past 10 years, tune time, autotune .5 sec, manual is an option, but have never needed to.

Thank You.

There are two bulletins from Motorola you might be interested in for broadband antenna use. These are of particular interest to people who use the Low Band Syntor X9000. The first Motorola bulletin shows how to make a phasing harness with two antennas with one radio number 68P80100W86-A. The second bulletin shows Motorolas broadband matching unit. It has schematics and charts, number 68P80100W79-W. For use with a 6 Meter/10 Meter Syntor the first bulletin with 2 antennas is probably your best bet.