HF Radio Aerial Question
Submitted: Wednesday, Mar 26, 2008 at 14:53
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Mike
I have a Coadan NGT with Auto tune aerial...... Question you know how
UHF radio aerials have the twirley bit in the middle of the aerial........do they make HF whips similar and if so where can I purchase one? as I would prefer a shorter whip than the 1.6m that I am using and I would be able to use my carport and not having to take the whip off all the time.
Reply By: Member -Signman - Wednesday, Mar 26, 2008 at 15:03
Wednesday, Mar 26, 2008 at 15:03
The centre loading on a UHF is very different to that of HF.
I assume you are using a Codan 9350 Autotune ?? If so- you can get away with using a shorter whip, but this may limit the usage of the very low frequencies in the band. You'll be able to use mid frequencies (eg 5455 & 8022).
I have even used and old 27mHz CB antenna on a 9350- it was about 900mm. Tune up and worked with no probs.
If you are using the 'solid' fibergalss whip - you can get a stainless 'wire' whip- more flexible and works just as good.
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Follow Up By: Member - Phil G (SA) - Wednesday, Mar 26, 2008 at 18:32
Wednesday, Mar 26, 2008 at 18:32
Just to add, that if using the flexible stainless wire whip, its pretty easy to pull it down with a string tied to the roofrack.
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Follow Up By: Stu & "Bob" - Wednesday, Mar 26, 2008 at 22:07
Wednesday, Mar 26, 2008 at 22:07
The secondary s/s whip that used to come with a new 9350 is only 1.2m long. Very flexible, more so than the 1.6m s/s whip.
Down side is that it won't tune 2020.
Maybe an engineering works could make up one? After all, it is only a piece of s/s rod. I don't know if this would work, but it might be worth a try. A few coils in the middle should reduce it's height, just make sure they cannot touch one another.
HTH
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