On Mon, 31 Jan 2005 20:20:39 -0500, wrote:


I did a frequency check to see where this antenna is tuned. It seems to be tuned
for 26.500-26.800 MHz. The SWR is a flat 1.2 across that band. It starts to
when I go below or above that band.

Because of the close proximity of the roof structure inside the attic
you are adding more capacitance to the antenna than what would
normally be there.

In order to bring the antenna back into resonance you'll need to
counteract the increased capacitance by decreasing the inductance.

This is done by shortening the antenna.

I don't believe you'll ever be able to get your match as low as you
could in free air. This is because you'll get more induced antenna
currents whenever the antenna is located inside a house.



I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down to 1.3 on
40, and that is it.

Vinnie S.

"Vinnie S." wrote in message
...
On Mon, 31 Jan 2005 20:20:39 -0500, wrote:


I did a frequency check to see where this antenna is tuned. It seems to
be tuned
for 26.500-26.800 MHz. The SWR is a flat 1.2 across that band. It starts
to
when I go below or above that band.

Because of the close proximity of the roof structure inside the attic
you are adding more capacitance to the antenna than what would
normally be there.

In order to bring the antenna back into resonance you'll need to
counteract the increased capacitance by decreasing the inductance.

This is done by shortening the antenna.

I don't believe you'll ever be able to get your match as low as you
could in free air. This is because you'll get more induced antenna
currents whenever the antenna is located inside a house.



I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down to
1.3 on
40, and that is it.

Vinnie S.

How did you do it? And BTW, that's a wonderful match.

On Tue, 01 Feb 2005 04:57:49 GMT, "U Know Who" wrote:


"Vinnie S." wrote in message
.. .
On Mon, 31 Jan 2005 20:20:39 -0500, wrote:


I did a frequency check to see where this antenna is tuned. It seems to
be tuned
for 26.500-26.800 MHz. The SWR is a flat 1.2 across that band. It starts
to
when I go below or above that band.

Because of the close proximity of the roof structure inside the attic
you are adding more capacitance to the antenna than what would
normally be there.

In order to bring the antenna back into resonance you'll need to
counteract the increased capacitance by decreasing the inductance.

This is done by shortening the antenna.

I don't believe you'll ever be able to get your match as low as you
could in free air. This is because you'll get more induced antenna
currents whenever the antenna is located inside a house.



I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down to
1.3 on
40, and that is it.

Vinnie S.

How did you do it? And BTW, that's a wonderful match.


Cap off like you said, brought id down to about 2. I clipped some wire for the
rest. If I put the cap back on, I have to clip a little more. Firestik says they
cut their antenna extra long, so when it tuned to 26.5-26.8, I figured it might
work.

Vinnie S.

Vinnie S. wrote:
I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down to
1.3 on 40, and that is it.

Vinnie S.

Cool. Made any contacts yet?

On 01 Feb 2005 11:56:27 GMT, Steveo wrote:

Vinnie S. wrote:
I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down to
1.3 on 40, and that is it.

Vinnie S.

Cool. Made any contacts yet?


I few last night, granted I spen the majority of the night on the SWR. I did
make a 15 mile trip to Delaware. No bad for a Firestik in the attic.

Vinnie S.

Vinnie S. wrote:
On 01 Feb 2005 11:56:27 GMT, Steveo wrote:

Vinnie S. wrote:
I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down
to 1.3 on 40, and that is it.

Vinnie S.

Cool. Made any contacts yet?

I few last night, granted I spen the majority of the night on the SWR. I
did make a 15 mile trip to Delaware. No bad for a Firestik in the attic.

Yup, not bad at all.

On 01 Feb 2005 14:04:19 GMT, Steveo wrote:

Vinnie S. wrote:
On 01 Feb 2005 11:56:27 GMT, Steveo wrote:

Vinnie S. wrote:
I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down
to 1.3 on 40, and that is it.

Vinnie S.

Cool. Made any contacts yet?

I few last night, granted I spen the majority of the night on the SWR. I
did make a 15 mile trip to Delaware. No bad for a Firestik in the attic.

Yup, not bad at all.


That Turner +3B I got from the attic seems to work real well. I got glowing
reports. When I first wired it, I put the no-connections wires on pin 5. I
didn't remember that pin 4 and 5 on the HR-2510 are channel up and down. So my
channels were scrolling at light speed ! LOL. Fixed that real fast. I didn't
remember because I never used the original mic.

Vinnie S.

Vinnie S. wrote:
On 01 Feb 2005 14:04:19 GMT, Steveo wrote:

Vinnie S. wrote:
On 01 Feb 2005 11:56:27 GMT, Steveo wrote:

Vinnie S. wrote:
I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it
down to 1.3 on 40, and that is it.

Vinnie S.

Cool. Made any contacts yet?

I few last night, granted I spen the majority of the night on the SWR.
I did make a 15 mile trip to Delaware. No bad for a Firestik in the
attic.

Yup, not bad at all.

That Turner +3B I got from the attic seems to work real well. I got
glowing reports. When I first wired it, I put the no-connections wires on
pin 5. I didn't remember that pin 4 and 5 on the HR-2510 are channel up
and down. So my channels were scrolling at light speed ! LOL. Fixed that
real fast. I didn't remember because I never used the original mic.

Vinnie S.

Yea, you'd end up out of band real quick with that set up. lol

Any TVI problems with your antenna being that close?

On 01 Feb 2005 14:21:02 GMT, Steveo wrote:


Yea, you'd end up out of band real quick with that set up. lol

Any TVI problems with your antenna being that close?


Will update that tonight. So far no. It did set off one of my carbon monoxide
detectors. Though.

Vinnie S.

On 01 Feb 2005 11:56:27 GMT, Steveo wrote:

Vinnie S. wrote:
I got it down to 1.5 on 40, and 1.3 on 1. I can probably get it down to
1.3 on 40, and that is it.

Vinnie S.

Cool. Made any contacts yet?


I few last night, granted I spen the majority of the night on the SWR. I did
make a 15 mile trip to Delaware. No bad for a Firestik in the attic.

Vinnie S.

Of course you are running illegal power with that radio
it is not legal for CB so whatever results you got are
because you cheated, went outside the rules, basically
dishonest, not to be trusted, etc.