Uh, that's toroids. I guess the voice activated email doesn't know that one.
Steve Glover
Sent from my iPhone
> On Sep 8, 2014, at 14:31, "Steve G. via KRnet"
> wrote:
>
> Somebody left their antenna in the hanger. Whoever it was did not do the
> other and where the tour Roy's are installed
Somebody left their antenna in the hanger. Whoever it was did not do the other
and where the tour Roy's are installed. Please let me know who it so I can get
it to you. If you like I can finish setting it up.
Steve Glover
Sent from my iPhone
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
You might want to Google EMP or Electro Magnetic Pulse to get more detail on
Mr. Decker's "Keep in mind" comment.
-Original Message-
From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf
Of Wolfgang Decker
Sent: Friday, March 02, 2007 8:38 PM
To: KRnet
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
Hi guys
Thanks to those that replied to my query regarding the Microair radio--much
appreciated.
my next question is about the antennae. I will be using a dipole as
described in my last post but was wondering what effect mounting the leg
that the screen of the co-ax is soldered to horizontally will
A dipole antenna is most efficient when the ends are at 180 degrees from one
another. Hams use an antenna called an inverted V to get the antenna to fit in
their backyards.
Folding the antenna this way will affect its perfoamance some but not a lot.
The closer you bring the ends together the m
Jim Weir of RST engineering has written a booklet that he sells for $5 USD. In
it he discussed everything you need to make antenna for aircraft. The articles
are not published on the web. His web site, where you can order the booklet is
www.rst-engr.com
As far as I know all VOR antenna are
There is quite abit of stuff on the web. Search Ham sites, they are loaded with
pertinent information. Aviation antennas aren't any differnt than any other com
antenna.
Denny ...
orma wrote:
Jim Weir of RST engineering has written a booklet that he sells for $5 USD. In
it he discussed every
> Thanks to those that replied to my query regarding the Microair
> radio--much
> appreciated.
>
> The dimensions for the Microair M760 are on the Spruce websight but
> I can't
> seem to find dimensions for the transponder(depth behind panel),
Dean,
Transponder is 2 1/2" x 2 1/2" x 6" plus at le
And for $29, you can get the booklet and all the material for more antennae
than you'll ever need in an airplane.
Ken
- Original Message -
From: "orma"
To: "KRnet"
Sent: Thursday, April 29, 2004 10:14 PM
Subject: Re: KR> antennae +Microair
>
>
Correct Orma the balun doesn't care about orientation. The mildly folded dipole
that we are discussing here will work fine. The folding affects the radiation
pattern, impedance and therefore the effeciency of the antenna, but a 90 degree
fold is not a real big deal.
Set the antenna up outside t
> "orma" writes:
> As far as I know all VOR antenna are V pole antenna. I think that
> the V is significant, though I'm not qualified in Radio electronics.
> All of the antenna sold by the verious aviation suppliers seem to
> be of that shape.
The V shape of the nav dipole antenna is one
, May 03, 2004 9:18 AM
To: kr...@mylist.net
Subject: Re: KR> antennae +Microair
When selecting sites inside the airframe for buried antennas, keep the
polarization correct: comm radios are Vertical, and nav radios use
Horizontal.
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