[ARC5] Rollerductor setting

[AKLDGUY .]

Hi Dennis

OK, so the rollerductor and the 150pF series cap interact? Is that it?

So I should set the rollerductor arbitrarily to more than half the
inductance and adjust the cap to suit?

I like your harmonic reduction comment. It makes sense.

73 de Neil ZL1ANM


On Thu, Apr 20, 2017 at 4:10 PM, Dennis Monticelli <
dennis.monticelli at gmail.com> wrote:

> Neil,
>
> Whether 80M or 40M, I like to adjust for at least half the rollerductor.
> Too little inductance will compromise harmonic attenuation.
>
> Dennis AE6C
>
> On Wed, Apr 19, 2017 at 7:12 PM, AKLDGUY . <neilb0627 at gmail.com> wrote:
>
>> To match my T-19/ARC-5 (3-4 Mc/s) to 50 ohm coax, I'll be using a 150pF
>> variable capacitor connected in series with the inner of the coax.
>>
>> This configuration worked very well with my BC-AO-230 with the cap at
>> about half-mesh.
>>
>> What setting should I use for the ANT. INDUCTANCE?
>> Frequency is 3.850 MHz for the ZL AM net.
>>
>> 73 de Neil ZL1ANM
>>
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