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Well, I went from 10 wraps, to about 40 wraps (of the same 22 gauge
insulated wire), directly around the antenna. I extended the bottom (thick) part of the antenna, just enough to fit the wraps (-the wraps are NOT spaced out). I then attached antenna and ground wires of the loop to the ends of the wire wrapped around the antenna. Well, off of the rod by itself, I can hear CHU Canada, but it's below 1 on the S-Meter. Using the inductive connection (40 wraps), it gives a signal of 4 -- but it's VERY noisy. (I tried reversing the antenna/ground to no avail). With the antenna clip directly to the top (thin part) of the rod antenna (rest of rod not extended), I get signal of 6 but very noisy. When I connect the ground clip to the battery, it get's MUCH quieter (than without ground, or with inductive connection) and it stays at a signal of 6. Direct connection of the antenna to a radio with an antenna jack is still much better! (I did a test with the clips to that radio - in order to make sure it's an antenna connection issue). So, as of now, the inductive connection isn't helping. Suggestions or recommendations? I emailed Universal about the AA-1, to ask if it's ok to use with active antennas (it's also $60...which is a bit much, considering). Thanks RHF wrote: wrote: Thanks. I was asking if the tubing made a difference, so that I could TEST using insulated wire directly on the antenna... and then get some tubing once I see that the wrapping works and how many wraps are needed. 1 - If you Wrap the Insulated Wire Directly on-to the Whip Antenna : Then you have a Fixed {Permenant} Installation on the one Radio. DANR - Yes - The Tubing will make a difference. Since the Insulated Wire will be closer to the Metal of the Whip Antenna and therefore coupling to it more effectively. You will find that few turns are required with the Direct-Wrap. More Turns when the Tubing is used 'in-between' the Wire and the Whip Antenna. TIP # 1 - Instead of Tubing for your first attempt. Try a few wraps of Paper taped around the Whip Antenna as a Thin Core to make the Coupling Coil more easier to Put-On or Take-Off as needed. TIP # 2 - With the Tubing the Coil Assembly can be positioned {move} In-and-Out on the Whip Antenna so that the Coupling Effect between the Whip and Coil can be varried {adjusted} for the best reception. hope this helps - iane ~ RHF . . . . |
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