I wouldn't mind to build this antenna, but the ham universe page doesn't
give any sort of building instructions, just measurement instructions.
For instance, they speak about spacing and a gap, I understand spacing to
mean the distance between the two vertical elements of the antenna, one
being 3/4 wave and the other being 1/2 wave etc...but the gap and using a
sleeve to adjust the gap doesn't make sense to me yet.
I have never brailled a J pole or slim jim etc, so perhaps I am forgetting
or totally missing some aspect of the antenna that would make this gap thing
perfectly obvious lol.
I have made a twin lead J pole before with less than excellent results, but
I can't quite visualize the copper slim jim design.
Maybe a description from someone who has a copper slim jim would help...the
parts are easy and cheap to get, and with the tw2, I can at least get a
general SWR to tune the thing.
73
Colin, V A6BKX
-----Original Message-----
From: Oriano
Sent: Friday, May 01, 2015 12:10 PM
To: [log in to unmask]
Subject: Re: Slim Jim VHF UHF Antenna
Yes, very similar. The radiation pattern is low to the horizon around 8
degrees compared to a j-pole which is probably around 30 degrees. I am not
certain about the j-pole so someone is likely to correct me. Generally, if
one lives on a hill the slim jim works better with lower to the horizon
radiation pattern. A j-pole may do better if one is in a bit of a valley.
Best,
Oriano VE7 D Y Z
-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Gerry Leary
Sent: Friday, May 01, 2015 10:57 AM
To: [log in to unmask]
Subject: Re: Slim Jim VHF UHF Antenna
Or the slim Jim's similar to a J pole?
Sent from my iPhone this time=20
> On May 1, 2015, at 7:23 AM, Adrien Collins
> <[log in to unmask]> w=
rote:
>=20
> Hi=20
>=20
> I used to use a home brew slim jim years ago on 2 meters, it was
>surprising the distances I could get on that aerial.
>=20
> Regards
>=20
> Adrien
>=20
> -----Original Message-----
> From: For blind ham radio operators
> [mailto:[log in to unmask]] On Behalf Of Blake Hailey
> Sent: Thursday, April 30, 2015 1:08 AM
> To: [log in to unmask]
> Subject: Re: Slim Jim VHF UHF Antenna
>=20
> I agree I have used them from N9TAX on 144/220/440 MHz and they all
>work great especially if you live in a apartment or condo. The hang
>on the wall and still work great. =20
> 73 Blake KA5POW
>=20
>=20
> -----Original Message-----
> From: For blind ham radio operators
> [mailto:[log in to unmask]]
> On Behalf Of Oriano
> Sent: Wednesday, April 29, 2015 12:26 AM
> To: [log in to unmask]
> Subject: Slim Jim VHF UHF Antenna
>=20
> I purchased a slim jim antenna from N9TAX for about $23.00 and it is
>a great omni dual bander. No problems with repeaters over 100k away.
>One can build it using the following instructions:
> http://www.hamuniverse.com/slimjim.html
>=20
> or purchase one as I did from:
> http://2wayelectronix.com/Dual-band-2m-70cm-Slim-Jim-Antenna
> -dual-slim.htm
>=20
> I turned it into a base antenna using the following
> instructions:
> http://www.n9tax.com/Slim%20Jim%20Info.html
>=20
> 73s
>=20
> Oriano VE7 D Y Z
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