[TowerTalk] 40 meters in combination with 30 meters

[N1BUG]

Hi Terry,

I asked this question a couple of months ago. Several people did
some modeling and say it should work fine. I have built a full size
40 meter rotatable dipole and plan to add 30 meters to it before it
goes up.

The 40m is a split dipole fed with a serious common mode choke. 30m
will hang one foot below and will be a coupled resonator made of
somewhat smaller diameter tubing - not fed and not split in the
center. I have high hopes for this arrangement. The weather is just
starting to cool down sufficiently that I can get back to work on it
soon, but I expect it will still be some time before it is ready to
install.

Paul N1BUG


On 08/19/2018 02:49 PM, terry burge wrote:
> Hi folks,
> 
> 
> Has anyone tried putting 30 meters on something like a 40 meter
> rotatable dipole with any luck. Being non-harmonic related I'm
> not sure they would work together. For the first time last night
> I got on 30 meters trying to work the TX5T but despite having a
> decent signal I was unable to make contact or even get any kind
> of 'huh'? This has got me wondering about placing a wire 30 meter
> dipole below my 40 meter rotatable dipole. Should be simple
> enough to do IF they will work together.
> 
> 
> Terry
> 
> KI7M