2m antenna identity

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Sam P
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2m antenna identity

Post by Sam P » 29 May 2017, 09:47

Can anyone ID this for me please?

The bottom ground planes are my addition (I assume it had some originally).

The length from the bottom to the spiral coil is about 1m but longer than that above... Ihave it tuned to an SWR 1:1 on 145MHz at 50ohms.

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Ubique Loquimur

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kilimax
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Re: 2m antenna identity

Post by kilimax » 29 May 2017, 10:26

It looks similar to a Ringo Ranger although it's slightly different.
Where at the antenna is the coax feed?
Kilimax - Drew
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Sam P
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Re: 2m antenna identity

Post by Sam P » 29 May 2017, 11:24

kilimax wrote:It looks similar to a Ringo Ranger although it's slightly different.
Where at the antenna is the coax feed?
It's fed straight up the bottom ---- Oooer :oops:

I assume the top element is 5/8 or 3/4 for 2m????
Ubique Loquimur

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kilimax
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Re: 2m antenna identity

Post by kilimax » 29 May 2017, 14:42

The Ringo appears to be fed mid point so end fed rules that out. The phasing coil mid way up suggests perhaps a double 5/8
Certainly familiar looking but haven't found anything in the short look I've had on the usual websites.
Kilimax - Drew
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Tango Mike Callsign 108TM144

I've changed radios so many times, I've forgotten what I have

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Sam P
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Re: 2m antenna identity

Post by Sam P » 29 May 2017, 16:34

kilimax wrote:The Ringo appears to be fed mid point so end fed rules that out. The phasing coil mid way up suggests perhaps a double 5/8
Certainly familiar looking but haven't found anything in the short look I've had on the usual websites.

Well thanks for having a go... it certainly seems to work well but my analyser doesn't cover UHF so I'm a bit stumped on that side of thing.
Ubique Loquimur

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