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Skillet
Joined: 14 Oct 2010
Posts: 2
Location: Oregon
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 Posted: Mon Nov 01, 2010 7:26 am Post subject: KR86 42b ADF |
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I have a King KR86 with the 42B antenna. the24' cable has been cut.
Can I splice it back together or cut it to 15'. The manual instructs; Do not change cable length. King offered the cable (at) either 24' or 15'.
Where the 15' and 24' cables identical other than length?
The part #'s for the 15' and 24' differ only by the last letter/digit.
Thank You
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nuckolls.bob(at)aeroelect
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| Posted: Mon Nov 01, 2010 12:44 pm Post subject: KR86 42b ADF |
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At 10:26 AM 11/1/2010, you wrote:
| Quote: |
I have a King KR86 with the 42B antenna. the24' cable has been cut.
Can I splice it back together or cut it to 15'. The manual
instructs; Do not change cable length. King offered the cable (at)
either 24' or 15'.
Where the 15' and 24' cables identical other than length?
The part #'s for the 15' and 24' differ only by the last letter/digit.
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Those fixed length cables were designed
to present a certain capacitance to critically
tuned circuits within the receiver. If I
recall correctly, the "coaxial" cable wasn't
really an impedance-matched material . . . the
center conductor was a very fine wire compared
to the inside diameter of the shield. I suspect
that the material for both cables is the same
and the 15' cable has a capacitor added inside
one of the connector shells to compensate for
the shorter cable's lower capacitance.
Just an educated guess.
Suggest you splice it with a minimum removal
of original cable.
Bob . . .
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Skillet
Joined: 14 Oct 2010
Posts: 2
Location: Oregon
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| Posted: Mon Nov 01, 2010 6:10 pm Post subject: Re: KR86 42b ADF |
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Thanks that was helpful.
Brian
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