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Antenna Connectors and 6 meters


 

I have a dipole for 6 meters with a so239 connector. I have attached
to both the rear and front (via a 239/bnc adapter) and have noticed
very different SWR characteristics depending where I have it plugged
in. When plugging into the rear, the SWR seems to be where I would
expect it to be, so I am assuming that the bnc adapter on the front
is the issue. Has anyone else experienced this?

Also, I would appreciate hearing any comments/suggestions on
successful antennas for low power 6 meter operation (horizontal vs.
vertical, height above ground, holding my mouth right ;) etc. I have
been hearing alot of good openings on 6, but I don't seem to be
getting out there very well.

Thanks
Alan
KD5CNI


 

Alan --

I have tried a dipole on Six before, and was not very satisfied with
the performance. I don't know why it didn't work better. My current
antenna is a Cushcraft 6m Ringo, which is 5/8 wavelength veritcal.
It
works well, takes up minimal space, and requires little in the way of
a support. (BTW, I run a maximum of 10w on Six.) I used to use a
Cushcraft 3 element Yagi, which I thought worked well, but I don't
have a place to put it right now, since my only rotatable support is
occupied with satellite antennas. I also have an old Saturn Six
Mobileer halo which I use mobile (with my FT-817 and Icom IC-502) and
like very much.

If you wanted to homebrew something, you might try a J-pole, or even
a
halo. W6OAL used to make a "knock-off" of the Saturn Six design, but
I don't know if he is in the antenna business anymore or not.
Haven't
heard from him for a couple of years.

Hope to work you on Six,

-- 73 de Bill, KR8L/7, SMIRK #4310


--- In FT817@y..., alan@m... wrote:
I have a dipole for 6 meters with a so239 connector. I have
attached
to both the rear and front (via a 239/bnc adapter) and have noticed
very different SWR characteristics depending where I have it
plugged
in. When plugging into the rear, the SWR seems to be where I would
expect it to be, so I am assuming that the bnc adapter on the front
is the issue. Has anyone else experienced this?

Also, I would appreciate hearing any comments/suggestions on
successful antennas for low power 6 meter operation (horizontal vs.
vertical, height above ground, holding my mouth right ;) etc. I
have
been hearing alot of good openings on 6, but I don't seem to be
getting out there very well.

Thanks
Alan
KD5CNI


 

I'm using a Par OA-50 Omniangle with my 817 on six meters. It is a
triangle shaped horizontal antenna. I've got it mounted inside my
attic. Had an opening between here (Milwaukee) and Nova Scotia a few
weeks ago. Worked everything I heard.

Dave WA8RFH

--- In FT817@y..., alan@m... wrote:
I have a dipole for 6 meters with a so239 connector. I have
attached
to both the rear and front (via a 239/bnc adapter) and have noticed
very different SWR characteristics depending where I have it
plugged
in. When plugging into the rear, the SWR seems to be where I would
expect it to be, so I am assuming that the bnc adapter on the front
is the issue. Has anyone else experienced this?

Also, I would appreciate hearing any comments/suggestions on
successful antennas for low power 6 meter operation (horizontal vs.
vertical, height above ground, holding my mouth right ;) etc. I
have
been hearing alot of good openings on 6, but I don't seem to be
getting out there very well.

Thanks
Alan
KD5CNI


Cortland
 

The SWR should not change between the connectors, nor should one
BNC-to-UHF adapter make a noticable difference even at TWO meters.
Check the shield termination on the PL-259 on your antenna coax; these
are often loose inside the PL-259 barrel, so that bending the coax one
way or the other can change the SWR.

Cortland

--- In FT817@e..., alan@m... wrote:
I have a dipole for 6 meters with a so239 connector. I have
attached
to both the rear and front (via a 239/bnc adapter) and have noticed
very different SWR characteristics depending where I have it plugged
in. When plugging into the rear, the SWR seems to be where I would
expect it to be, so I am assuming that the bnc adapter on the front
is the issue. Has anyone else experienced this?

Also, I would appreciate hearing any comments/suggestions on
successful antennas for low power 6 meter operation (horizontal vs.
vertical, height above ground, holding my mouth right ;) etc. I
have
been hearing alot of good openings on 6, but I don't seem to be
getting out there very well.

Thanks
Alan
KD5CNI


 

Excellent suggestion. It made me realize that I was going straight
into the back and bending around to the front. I will check it out
and let you know. Also, thanks to everyone for the antenna comments.

Alan de KD5CNI

--- In FT817@y..., "Cortland" <ka5s@e...> wrote:
The SWR should not change between the connectors, nor should one
BNC-to-UHF adapter make a noticable difference even at TWO meters.
Check the shield termination on the PL-259 on your antenna coax;
these
are often loose inside the PL-259 barrel, so that bending the coax
one
way or the other can change the SWR.

Cortland

--- In FT817@e..., alan@m... wrote:
I have a dipole for 6 meters with a so239 connector. I have
attached
to both the rear and front (via a 239/bnc adapter) and have
noticed
very different SWR characteristics depending where I have it
plugged
in. When plugging into the rear, the SWR seems to be where I
would
expect it to be, so I am assuming that the bnc adapter on the
front
is the issue. Has anyone else experienced this?

Also, I would appreciate hearing any comments/suggestions on
successful antennas for low power 6 meter operation (horizontal
vs.
vertical, height above ground, holding my mouth right ;) etc. I
have
been hearing alot of good openings on 6, but I don't seem to be
getting out there very well.

Thanks
Alan
KD5CNI


 

--- In FT817@y..., alan@m... wrote:

Also, I would appreciate hearing any comments/suggestions on
successful antennas for low power 6 meter operation (horizontal vs.
vertical, height above ground, holding my mouth right ;) etc. I
have
been hearing alot of good openings on 6, but I don't seem to be
getting out there very well.

Thanks
Alan
KD5CNI
Yesterday, we had a fine Es-opening from DL to southern Europe.
Sitting on my third floor balcony in JN48, I was able to work the
following squares with 5W output from my trusty FT-817: KN12 (2x),
JN61 (3x), JN84 and JN85, all within about 40 minutes. The antenna is
a M2 HO-Loop for 6m, mounted on an old camera tripod, about 4 ft over
ground. I used the front BNC connector and had no problems. Some days
ago, I worked Sweden (abt. 1000km from here) with the same setup! To
sum up: QRP, 6m and the 817 guarantee some fun!

Greetings,

Rainer DG1SMD from Adelberg JN48TS DOK P01