[Elecraft] Magnetic Loop question
Fred Jensen
k6dgw at foothill.net
Wed Oct 19 23:43:42 EDT 2016
On 10/19/2016 6:42 PM, Phillip Lontz wrote:
> Are mag loop antennas very directional?
Yes
> Are mag loop antennas a little directional?
Yes, more than a little
> Are mag loops kinda directional?
The fwd lobe [in the plane of the loop] is very broad, very hard to
discern the peak, so it really doesn't matter. The null [orthogonal to
the plane of the loop] is very sharp, very noticeable. It can be used
to null QRN/QRM, provided of course that the QRN/QRM is located in
exactly that direction. Fortunately, because the fwd lobe is so broad,
this actually does work fairly regularly.
K2-AlexLoop
> So which one?
See above. I think I missed the original post [been really busy for a
retired puke], looks like the thread drifted off the question.
73,
Fred K6DGW
- Sparks NV DM09dn
- Northern California Contest Club
- CU in the Cal QSO Party 7-8 Oct 2017
- www.cqp.org
> Phil
> K5SSR
>
> What me worry?
>
>> On Oct 19, 2016, at 9:42 AM, Richard Fjeld <rpfjeld at outlook.com> wrote:
>>
>> This is a follow up to recent post from someone in California who
>> noticed less output when operating in below freezing temps.
>>
>> In the thread that followed, I mentioned the relationship of cold to
>> gain and biasing to prevent
>> thermal runaway. My last ARRL Handbook is a 2009 edition and 'Thermal
>> Runaway' can be found
>> in the index. You may find it interesting.
>>
>> Dick, n0ce
>>
>> --
>>
>>
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