[CQ-Contest] Multi 2 locking device?

Jukka Klemola jpklemola at gmail.com
Thu Jan 5 13:31:35 EST 2017

For M2, you do not need a PTT interlocking device if you use two radios.

If you use two radios per band, then you need a PTT interlock for those two
radios on each band.
If you use a third radio for 3rd band multipliers, you need an interlock.
This 3rd band interlock can be complex, depending on how you want to

But, for a M2 station with just two radios, one for a band at a time, you
do not need an interlock.

Jukka OH6LI

2017-01-05 20:03 GMT+02:00 Fco. Luis Delgadillo <xe2b at outlook.com>:

> Hola,
> I'm planning to operate M2 LP, the oncoming contest season.
> I do have two WX0B passbands filters from my previous SO2R setup.
> -Only two radios will be used.
> and
> - Very simple antennas setup on a city lot:
> Log periodic Cushcraft ASL-2020
> Vertical tribander Force13 VR-3
> Twin Slopper Alpha-delta DX-A
> Is there any summary related to options available for locking devices to
> prevent two radios to operate in the same band?  I do not want to have
> burned front ends.
> Preferably,  I would like to build it.
> I appreciate the feedback
> 73
> Luis XE2B
> Enviado desde mi Huawei de Telcel
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