It should work with the cap in series with the antenna, plus a good amount of inductance.
Failing that, try increasing/decreasing the wire length.
Also, if you are going for the short wire antenna, do not use any coax in the mix-just wire.

On Monday, June 2, 2025 at 12:53:29 PM EDT, Mark K3MSB <[email protected]> wrote:


Forwarding to this group......

Hi Guys

The estimated length for the Command Set antenna on a B-24 is about 45 feet taking into account the length inside the fuselage.

I cannot get this work with my command set on 3885.   No antenna current at all.   Dosen't matter if I use the 200 pF cap on the antenna relay unit.

I can use my 9:1 Balun and series capacitor, the output of which goes to an MFJ tuner connected to the 45 foot wire.  I'm getting about 30W out with low Ip.

Don't understand what I'm doing wrong with only the 45 foot wire.

I can certainly do it this way at the airwhow this week, but I'd rather not have the MFJ box in line.

73 Mark K3MSB

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