Guys,
Today I spoke to an old radio technician (35 years experience) about tuning
the antennae in the aircraft. He said that I would definately get false
readings with the SWR meter that I have and that I shouldn't use it as it
was designed for 29mghz. He also said that tunung it in my workshop wit
Yes, it will be interesting to see. Just remember, it is possible your
antena match was as close to perfect when you started as you can get
but unless you test it you'll never know how bad it could be. The Bird
will show you.
-dave
AVLEC wrote:
>Guys,
>Today I spoke to an old radio tech
Hi KR radio heads
This one is for the radio literate. I have just installed an antennae into
an aircraft made from coax only. I left the radiator and counterpoise too
long on purpose so that I could tune it to length in the aircraft using a
SWR meter and a handheld radio. Here is where my confusion
The CB freq is 27 Meg. Airband is108 to137 Meg.
A BIG difference. HF VS VHF, Tune for max signal on receive, Virg
On Mon, 26 Feb 2007 23:34:39 +0200 "AVLEC" writes:
> Hi KR radio heads
> This one is for the radio literate. I have just installed an
> antennae into
> an aircraft made from
al Message -
From: "VIRGIL N SALISBURY"
To:
Sent: Tuesday, February 27, 2007 5:48 AM
Subject: Re: KR> antennae tuning
> The CB freq is 27 Meg. Airband is108 to137 Meg.
> A BIG difference. HF VS VHF, Tune for max signal on receive, Virg
Dene Collett wrote:
> My question was whether the SWR meter that I have used on CB freq was
>able to do airband freq as I was always under the impression that it
>didn't care
> what freq passed through it.
SWR meters *do* care about the freq. The Bird Watt meter has many
inserts
for different
-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
Behalf Of AVLEC
Sent: Monday, February 26, 2007 4:35 PM
To: KRnet
Subject: KR> antennae tuning
Hi KR radio heads
This one is for the radio literate. I have just installed an antennae into
an aircraft made from coax only. I left
net
> - Original Message -
> From: "VIRGIL N SALISBURY"
> To:
> Sent: Tuesday, February 27, 2007 5:48 AM
> Subject: Re: KR> antennae tuning
>
>
> > The CB freq is 27 Meg. Airband is108 to137 Meg.
> > A BIG difference. HF VS VHF, Tune f
Louis Staalberg wrote:
>Dene Collett wrote:
>
>
>
>>My question was whether the SWR meter that I have used on CB freq was
>>able to do airband freq as I was always under the impression that it
>>didn't care
>>what freq passed through it.
>>
>>
>
>SWR meters *do* care about the freq. The
eetings from the still cold Western Pennsylvania,
>
>Wolfgang
>N1YM
>
>-Original Message-
>From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On
>Behalf Of AVLEC
>Sent: Monday, February 26, 2007 4:35 PM
>To: KRnet
>Subject: KR> antennae tuning
>
could you show the details of your construction of your antennae? I just
bought a radio and don't have an antennae yet.
- Original Message -
From: "AVLEC"
To: "KRnet"
Sent: Monday, February 26, 2007 3:34 PM
Subject: KR> antennae tuning
> Hi KR radio he
Wolfgang, YOU DA MAN!!
You sound like you know what you are talking about. I will go ahead and tune
with what looks like the best meter of the two I have. Thanks
Regards
Dene Collett
KR2SRT builder
South africa
Whisper assembler
See: www.whisperaircraft.com
mailto: av...@telkomsa.net
- Original
Message -
From: "VIRGIL N SALISBURY"
To:
Sent: Tuesday, February 27, 2007 11:00 PM
Subject: Re: KR> antennae tuning
>
Guys,
I have three articles here written by one Jim Vance. They handle building
antennae for aircraft (his own KR2) from co axial cable only. He also
explains how to use an SWR meter to tune the antennae. There is no mention
of using a specific SWR meter for the freq. I have sent them to Jim Raleig
Louis Wrote:
"SWR meters *do* care about the freq. The Bird Watt meter has many
> inserts
> for different frequency ranges.If your SWR meter is a commercially
> available
> meter it should specify the frequency range.
Hi Louis
Yes I have used a bird wattmeter many times. It is a real piece of preci
I know this subject has been going around the net for days and days and
days,,, I have an ICOM handheld, with a cable I bought from Radio Shack,
with an antena from a swap mart (aircraft swap mart) $5.00. 1 piece of
alum foil around the mount area and I have a 150-200 mile range. Do not
an Dyke"
To: "KRnet"
Sent: Wednesday, February 28, 2007 10:54 PM
Subject: Re: KR> antennae tuning
>I know this subject has been going around the net for days and days and
> days,,, I have an ICOM handheld, with a cable I bought from Radio Shack,
> with an antena from a swap
"1 piece of alum foil around the mount area and I have a 150-200 mile range.
Do not
over think this thing, build it install it and fly it."
Tuning an antenna is not only about increasing range or receiving
sensitivity, it actually increases the lifetime of your radio, or at least
of the RF t
I have an avionics expert buddy who reminded me that turning on a
transponder with no antenna connected can fry the thing in a matter of
seconds. 250 watts with no where to go, or something like that. I suspect
he knows what he's talking about, so keep that in mind when installing a
transpond
Subject: RE: KR> antennae tuning
"1 piece of alum foil around the mount area and I have a 150-200 mile range.
Do not
over think this thing, build it install it and fly it."
Tuning an antenna is not only about increasing range or receiving
sensitivity, it actually increases the l
I have almost 200 hours on the Radio now, seems to be just fine.
Lee
- Original Message -
From: "Mark Wegmet"
To: "'KRnet'"
Sent: Friday, March 02, 2007 8:01 PM
Subject: RE: KR> antennae tuning
> You might want to Google EMP or Electro Magnetic
To save all the stuffing around, have a look at the Antennae I got from
Microair.
Airkit GI. to suit glass , timber airframe.
http://www.microair.com.au/index.aspx?page=186&productcat=4&cat1Name=Accessories
or
http://www.microair.com.au
and look under the Accessories link on the left side.
It
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