What is the material used to secure the hot end of the folded
dipole to the grounded center support on high and uhf arrays? Could
solid teflon be used? I have several 8-pole arrays and the material
is cracked or broken. Thanks, Bernie
Yahoo! Groups Links
* To visit your group on the
Actually, I found one buried in the junk pile at the EMA service garage,
complete with Line card and 5 Squelch Control Modules (I think that's what
they're called). So, I guess I'm OK there Now, just for a manual.
:-)
I also sent off to my repeater coordinator to see where they would
I think that Delrin is popular.
I have bought it from McMaster-Carr.
www.mcmaster.com
Their website is among the best e-commerce web sites I have ever used.
Jeff
At 08:59 PM 5/24/2004, you wrote:
What is the material used to secure the hot end of the folded
dipole to the grounded center
I have a crazy thought, but I want to get some opinions. Here is
what I am thinking, only becuase I can construct them very cheaply.
As opposed to using a verticle, what would I expect if I used 4 10
element verticle beams, one point to NWSE, coupled with a power
divider. My objective in
Yes, that works well.
Chuck
WB2EDV
- Original Message -
From: wa8ili [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 24, 2004 8:59 PM
Subject: [Repeater-Builder] Folded dipole ant.
What is the material used to secure the hot end of the folded
dipole to
In Hawaii, we did something similar. Our UHF repeater was at the 10,023
foot level (Mt. Haleakala, on Maui). We wanted coverage on the north shore
of the Big Island (Hawaii) and good coverage on the major parts of Maui. As
such, we had one 5 element yagi facing south and one facing north, but
In Hawaii, we did something similar. Our UHF repeater was at the 10,023
foot level (Mt. Haleakala, on Maui). We wanted coverage on the north shore
of the Big Island (Hawaii) and good coverage on the major parts of Maui.
As
such, we had one 5 element yagi facing south and one facing north, but
You can also use Lexan.
Chuck
WB2EDV
- Original Message -
From: Jeff Otterson [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Sent: Monday, May 24, 2004 9:26 PM
Subject: Re: [Repeater-Builder] Folded dipole ant.
I think that Delrin is popular.
I have bought it from
Looking for a manual for the SpectraTAC Signal Quality
Comparitor... I have one of these, and I need a manual to determine
pinouts, etc., for wiring.
Thanks!
Mark - N9WYS
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* To visit your group on the web, go to:
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You still have to do the divide by how many arms to the power divider
cabling, as someone mentioned it weakens the overall rx department,
however I have tryed this with just 3 3 element beams using the tower as
the reflector and it seems to work pretty good, when the weather is a
sure thing we are
There are others on this list who could site engineering theory to prove
your suggestion to be not efficient.
My approach is more basic -- effectiveness and cost.
If your idea would work, the commercial two way world would implement it.
Why? Because tower real estate is expensive. If placing 4
I have seen this done with 8 beams on a 300 ft tower at 450Mhz
-Original Message-
From: w9mwq [mailto:[EMAIL PROTECTED]
Sent: Monday, May 24, 2004 9:28 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Antenna Thoughts
I have a crazy thought, but I want to get some
The top half can be used as-is. I believe the impedance at the
center connector is 50 ohms. The bottom half cannot, because the
harness has the feeder for the top half as part of it. It cannot
just be left hanging.
Laryn K8TVZ
--- In Repeater-Builder@yahoogroups.com, johnmichaelwelton
At 08:47 PM 5/24/2004 -0500, you wrote:
But would not the gain of these antenna's compensate for that, from say a 3
DB to 6 DB gain verticle to a 13 DB foward gain, directed in each direction.
---It's not really that big a deal. I'm sure it will work fine as you
describe. The only caveat I have
H trying to understand exactly what your idea is. Would the
beams be at the same level on the tower,or spaced at about a
wavelength or so apart down the tower? And pointed what directions???
Laryn K8TVZ
--- In Repeater-Builder@yahoogroups.com, w9mwq [EMAIL PROTECTED] wrote:
I have
Mark,
The Spectra-TAC Comparator manual 6881039E50 is still available from
Motorola for just $9.46 a copy.
73, Eric Lemmon WB6FLY
n9wys wrote:
Looking for a manual for the SpectraTAC Signal Quality Comparator... I have
one of these, and I need a manual to determine pinouts, etc., for
Hello,
Thanks for the referral, whoever it was. I can't tell from the headers from
whom the referral came.
I do still have several of the voters for sale, matter of fact I would sell
the whole bunch real cheap and deliver them if fairly close for just the
money it took for gas! Got to get
Got some on the way now, thanks to everyone for their help!
Larry
Original Message:
-
From: skipp025 [EMAIL PROTECTED]
Date: Mon, 24 May 2004 22:53:47 -
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Looking for GE MVP Tone Element - 100.0 Hz
Larry,
H trying to understand exactly what your idea is. Would the
beams be at the same level on the tower,or spaced at about a
wavelength or so apart down the tower? And pointed what directions???
Well the initial thought was to have them spaced a wavelenth apart, starting
at the top
Unless you can line up the radiating elements vertically, all your
antennas will be out of phase with other to any other direction.
Some RX signal will go by the first antenna and hit the 2nd 3rd and 4th
antenna out of phase with the 1st antenna. The end result is that the
out of phase signals
My thoughts on this idea was to eliminate the need for the voting system,
save a few bucks, as this thing is coming out of my pocket, sad part is
momma has sewn the pockets shut, hi hi. But I think most of what is
being said is what I figured I would find, just thought maybe someone had a
good
--- In Repeater-Builder@yahoogroups.com, Frank or Barb [EMAIL PROTECTED]
wrote:
Unless you can line up the radiating elements vertically, all your
antennas will be out of phase with other to any other direction.
Some RX signal will go by the first antenna and hit the 2nd 3rd and
4th
We may soon have to move our 2M repeater antenna to a location about
20 feet above the top floor of a hospital. This floor is CCU.
Power level is 200W. Antenna is a DB224. The roof deck/top floor
ceiling is metal. Has anyone had experience with RF interfering with
Med equipment in this
HAL Communications is around (http://www.halcomm.com) but most of their
business is not ham related. Their phone number is 217-367-7373. Ask to talk
with Mark Prather (WB9HFK) about ID-1A info. It is not on their website but
they (Mark in particular) have been very helpful to me in providing
I know this may be a bit out there, but a friend is setting up an R100
for me and can't seem to find the spot to change the PL tone. I've not
used the software, nor do I have the software manual, but I suspect it
is just a function key or something to get to another screen where you
change the
--- In Repeater-Builder@yahoogroups.com, Daron J. Wilson
[EMAIL PROTECTED] wrote:
I know this may be a bit out there, but a friend is setting up an
R100
for me and can't seem to find the spot to change the PL tone.
I've not
used the software, nor do I have the software manual, but I
Hi there!
OK, the R100 is either PL or DPL from the factory, not both, and to field change from DPL to PL it isa very hard event ... you need to change some prom that is nearly impossible to get. I've seen a few of these proms pop up on eBay and sell for $50-$100 each.
If you are lucky and
I'll call them today. Thanks!!
-Original Message-
From: Eric Lemmon [mailto:[EMAIL PROTECTED]
Sent: Monday, May 24, 2004 9:28 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] SpectraTAC Comparator manual
Mark,
The Spectra-TAC Comparator manual 6881039E50 is still
Once you get the software, let me know... I can walk you through it. The
software is kinda kludgy.
Mark - N9WYS
-Original Message-
From: Daron J. Wilson [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 25, 2004 1:19 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder]
A while back, the conversation was about bench sensitivity versus
real world sensitivity. I would like to test the sensitivity of our
repeater rx while hooked up to the duplexer, feedline and antenna.
I think I need some kind of T connector to put between the duplexer
and receiver. I don't
What you need is an Iso-T. These are available with usually at 60dB
isolation. You can also make your own by removing the connection on the
base leg of the T so you are no longer directly connected to the feedline
from the service monitor. This should be placed in the antenna system
between the
At 05:59 PM 5/25/04 +, you wrote:
A while back, the conversation was about bench sensitivity versus
real world sensitivity. I would like to test the sensitivity of our
repeater rx while hooked up to the duplexer, feedline and antenna.
I think I need some kind of T connector to put between
I don't know why you would have trouble, in Cleveburg, Ohio there are 2
or 3 100 watt and one 300 watt 2 mtr machine perched on hospitals just
running fine day and nite. One has a glass antenna cause I am borrowing
the 224, but when this appears I will likely get a phone message to
return the
Has anyone in the world EVER got a Johnson PPL6000 UHF on ham bands?
Jordan
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* Your use of
Yes,
I have a PPL6000 UHF as a link transmitter at my 6 Meter repeater site.
The receiver was in use there as well for a time, but was replaced by a
GE Mastr 2 auxilliary recever for use in voting. No problem getting it
to the low end of 440 MHz band.
Tom Saunders
Comm Tech, City of Seattle
Hi Guys.
Is there a Motorola site that one can find a list of what manuals that they
have for sale. I have tried their support and have gotten no ware. Trying to
get a copy of the service manual for their DPL Generator. ( SLN 6413A ).
Thanks for any help/ Ron WA6UNM
-Original Message-
Does anyone have experience with MoTron's TxID Transmitter FingerPrinter?
http://www.motron.com/TransmitterID.html
I am curious to know how well it does or doesn't work.
Thanks,
Sean
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Try the PPL 6060. its on uhf
-Original Message-
From: two_way_tech [mailto:[EMAIL PROTECTED]
Sent: Monday, May 24, 2004 10:38 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] PPL6000
Has anyone in the world EVER got a Johnson PPL6000 UHF on ham bands?
Jordan
I've had to call Parts ID on the phone. And usually they want the part
number for the manual in question. Sometimes they can locate it by radio
name, though. (I guess it depends on who you get on the phone, and if they
want to try to look it up
Mark - N9WYS
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