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Old 16th Jul 2021, 2:46 pm   #1
Tom williams
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Default Unusual "thing" on radio antenna

Hi all,

I recently won a Yupiteru MVT 7000 on eBay bidding, it came with a detachable antenna on a BNC connector. The antenna has this black thing on it and I am unsure as to what it is. See photos below for further details.

Tom
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Old 16th Jul 2021, 2:50 pm   #2
ionburn
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Default Re: unusual "thing" on radio antenna

Loading coil?
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Old 16th Jul 2021, 2:50 pm   #3
Andrew2
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Default Re: unusual "thing" on radio antenna

It may be a loading coil to boost reception of a particular part of the spectrum, Or it could just be a thing to make it look a bit more snazzy!
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Old 16th Jul 2021, 4:52 pm   #4
ex seismic
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Default Re: unusual "thing" on radio antenna

Maybe a centre loaded CB aerial if the original was lost. My similar radio does not have it.
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Old 16th Jul 2021, 5:18 pm   #5
stevehertz
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Default Re: Unusual "thing" on radio antenna

Isn't it just a grip to use when extending or retracting the aerial?
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Old 16th Jul 2021, 5:57 pm   #6
ms660
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Default Re: Unusual "thing" on radio antenna

Not quite the same but...?

https://www.thunderpole.co.uk/handhe...re-loaded.html

EDIT: Apparently Radio Shack sold them:

https://www.nj2x.com/2020/09/transmi...dio-shack.html

Lawrence.

Last edited by ms660; 16th Jul 2021 at 6:03 pm. Reason: extra info and link
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Old 20th Jul 2021, 12:40 pm   #7
SiriusHardware
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Default Re: Unusual "thing" on radio antenna

An aerial with a centre loading coil (which can be shorted out by partly collapsing the middle section) could make sense as these units have coverage going well down into the HF range (I have an MVT-7000 owned from new, but it came with a standard BNC ended telescopic aerial really only suitable for VHF / UHF).

Aerials with centre loading coils like this were common on the non-UK versions of CB radio handhelds but the UK versions lacked them because centre loaded aerials were not allowed under the original UK CB regulations. (They are now).

For any serious attempt at HF reception a long wire and possibly an SWL ATU or preselector would be advisable.

The only thing the MVT-7000 does not have which the 7100 - as originally suggested to Tom - does, is SSB.
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