Offhand, I would say 50% to 75% of what new sections would cost.
I am hoping to get something at little or no cost myself, like a tower that
had been used for a TV antenna. A number of those around no longer being
used. Just a matter of finding one. The last tower I was offers was an old
cracnkup
Jeff,
I find this interesting, especially with regard to the db408.
Did you test the db408 with both db404's harnessed and working together?
Brian, k5in
- Original Message -
From: Jeff DePolo
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 22, 2009 1:17 PM
K5IN,
From the yardstick dimensions of the dipole shown in your photo's it appears
to me that your antenna was designed with a center freq. of 485 MHz, but that
does not necessarily mean this or other such antennas are unusable, as a Smith
Chart design of a suitable simple impedance matching
Hi,
Now that I have clearly demonstrated my ignorance about multi bay dipole
antennas: Which one to buy for the following system.
441.950 output, 2,700ft on a mountain with a 160ft tower. Antenna will live at
the 140ft level fed by 78th inch hardline.
I need coverage that will include
Did you test the db408 with both db404's harnessed and
working together?
No, I tested the upper and lower halves seprately. I have some used DB408's
(not the dual version) that I'll try to sweep later.
Does anyone have an old PCRC II Personal Computer Repeater Controller board
they are willing to part with? I need to replace an existing PCRC II
installation hit by lightning. Software not required, but I am willing to
provide a copy(along with a scanned PDF copy of the manual) to anyone that
I just received a bunch of loose items ( some would call junk) and I found a
couple of these modules in some ht's. The marking on the edge of the pc board
reads (MAXON CA-111C). The marking in the ic chip is MX-COM MX335J.
I know this could be an encoder/ decoder, just wondering how to use it
Try this web site for a radio propagation plot or map. I f you have any
problems using it email me direct - de_n3...@tds.net - and i'll try to help you
out.
Doug N3DAB
- In Repeater-Builder@yahoogroups.com, k5in k...@... wrote:
Hi,
Now that I have clearly demonstrated my ignorance
Ooops, forgot to put the website in the last message.
http://lrcov.crc.ca/cov.php?lang=en
It is free and allows you to play with your parameters.
Doug N3DAB
--- In Repeater-Builder@yahoogroups.com, k5in k...@... wrote:
Hi,
Now that I have clearly demonstrated my ignorance about multi
I have a similar DB six element folded dipole antenna that I trying to
resurrect.
I think it is in the 440-465 range, the flat elements had been relocated
around the mast, instead of one above the other, from the original long before
I got it. I put the elements back in line as best as I could
At 3/29/2009 14:09, you wrote:
Ok, so I've got a nice looking db-4030 duplexer.
Little 6m repeater project cooking.
Now, I've got the tuning sheet and also the scan of a fax of a
modification sheet for 6m.
I also understand it's a reject only setup.
My question is, what are the unterminated T
I have a Sinclair 2H-30-4R6B and it is different than the mods that are on the
Repeater Builder sit.These are 1970's Units and the plunger assembly bolts to
the top and has no worm clamp but has a 10-32 hex nut
the bottom of the cavity has bolts and no rivets and is a 8 cavity unit. Has
anyone
Hi All
We are duplexing using a UHF 11 element yagi (Cruscraft) in a hostile
environment. Last weekend there were a number of 110 MPH gusts. The
problem is wind noise. I have tightened the element hardware with
some success. Spray it with water and it is quiet while tapping the
boom with
--- In Repeater-Builder@yahoogroups.com, Michael J.Talkington kc8...@...
wrote:
I have a Sinclair 2H-30-4R6B and it is different than the mods that are on
the Repeater Builder sit.These are 1970's Units and the plunger assembly
bolts to the top and has no worm clamp but has a 10-32 hex nut
Gran, you might want to consider a Sinclair yagi...they are built like a
battleship !
...not cheap...but they work well.
73 John VE3AMZ
- Original Message -
From: Gran Clark
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 29, 2009 8:55 PM
Subject:
Hello Gran,
I have had good luck with Antennex welded yagi ant.
Tim W7TRH Wa.
- Original Message -
From: Gran Clark k6...@cox.net
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 29, 2009 5:55:41 PM GMT -08:00 US/Canada Pacific
Subject: [Repeater-Builder] Need
I'll second that.
Chuck
WB2EDV
- Original Message -
From: John J. Riddell
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 29, 2009 9:12 PM
Subject: Re: [Repeater-Builder] Need supplier for UHF welded yagi
Gran, you might want to consider a Sinclair
Hi
well i has been many years since reproducing the Shuttle audio from my Master
2 repeater but i think my PA is dead now,,,
no more output,i just transmit by the exiter )))
i am looking for just the boards of the pa,i dont need the heat
sink,less heavy in mail cost.
if you have one
This is going to sound (read) crazy... but you might try
wrapping the antenna with a decent quality electrical tape.
s.
Gran Clark k6...@... wrote:
Hi All
We are duplexing using a UHF 11 element yagi (Cruscraft) in a hostile
environment. Last weekend there were a number of 110 MPH
These also have red plastic caps on some of the cavity's where the stub should
go.
Later Mike KC8FWD
My guess from looking at the schematic is that the tee's are for the grounded
and ungrounded coaxial cable tuning stubs that were cut for the original
freqency and have been apparently removed. Some one else will have to fill
you in on how to calculate the length, etc for making replacements.
Ok, thanks to ALL the replies.
Yes, the split the duplexer was using IS greater than a 1.5 megs.
Therefore, there are no stubs present, shorted or open.
So, just little caps over where they would have been.
I'll be using a 1.7 meg split so I'm good.
From the 6m conversion fax document, the
Tessco/Larson sells this one:
http://www.tessco.com/products/displayProductInfo.do?sku=57015eventPage=1
Scala is a favorite among broadcasters, and sells this one with a radome:
http://www.kathrein-scala.com/catalog/RA5-400B.pdf
BTW, Google is amazing. I plugged in welded yagi and at the top
Forgot to add that Sinclair makes one for the amateur portion of the band. You
can order direct - they have a ham discount.
Chuck
WB2EDV
- Original Message -
From: Chuck Kelsey
To: Repeater-Builder@yahoogroups.com
Sent: Sunday, March 29, 2009 9:24 PM
Subject: Re:
Chuck
I will call Sinclair. They don't list a welded antenna. On the
beam I have the elements are mounted on the outside of the boom
which I would think would be hard to make a good weld if I went that way.
Gran
At 07:34 PM 3/29/2009, you wrote:
Forgot to add that Sinclair makes one
n...@no6b.com wrote:
At 3/29/2009 14:09, you wrote:
Ok, so I've got a nice looking db-4030 duplexer.
Little 6m repeater project cooking.
Now, I've got the tuning sheet and also the scan of a fax of a
modification sheet for 6m.
I also understand it's a reject only setup.
My question is,
Thirded on the Sinclair yagi's... they take a ton of years of abuse,
and don't die.
Nate WY0X
On Mar 29, 2009, at 9:50 PM, Gran Clark wrote:
Chuck
I will call Sinclair. They don't list a welded antenna. On the
beam I have the elements are mounted on the outside of the boom
which
Sinclair makes decent antennas, but if you really want something to survive in
a harsh environment, check out Comprod Communications.
http://www.comprodcom.com/en/antennas/base/pdf/480-70.pdf
They make antennas that survive nearly anything. Out here on the West Coast we
routinely get lots of
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