Depending on the frequency seperation it sounds like it is in the ball park.
Maybe even not enough loss. Quick in the head math short cut is that 1 db is
about 25%. That would give you 75 watts out of the duplexer for 100 watts in.
If it is 3 db, that is half power or 50 watts out for 100
Guess that I should answer it then. I have had a 4 can Wacom 220 mhz duplexer
in a 6 foot by 6 foot building for around 20 years and it still works. Also in
the same building is a Phelps Dodge 6 can 146 mhz duplexer that has been there
for about 35 years.
This is in the middle of North
Just about anything around $ 100 or less is a 'throw-away' when it quits on you
if you can not fix it yourself. It will often cost that much for any repair.
A
few years back a local called about getting the dial lights replaced on a
transceiver and that was around $ 50 not counting the
Yep, blew the numbers. 97 for hams and 95 for the other services. That is
what
I get for not paying attention.
Around 1972 I took the comercial class exam. I thought I knew enough for the
second class at that time and it cost $ 1.00 more for the first class. Decided
that for only $ 1
How much do you know about electronics and radio in general ? If to some
extent
, the exam is no problem. Even less if you have a good memory. There are 3
classes now. The Technician, General. and Extra. For each one there is a pool
of about 300 questions and answers . That is the exect
You may want to look this over. It only costs $ 25 and may do what you want
and also has a cw identifier in it if needed.
http://www.hamgadgets.com/store/product_info.php?products_id=108
From: manny recede mrj12...@yahoo.com
To:
That is the way I see it most of the time. If I did want to do anything, I
would just change the capacitors.
I have had an Astron 50 amp supply on for probably 15 or more years and an
Elenco 25 amp supply on for about 30 years. The only times they have been off
was when I moved or
I would look for something else. About 30 years ago I used some for a DTMF
decoder for an autopatch on a repeater. They were stable enough for that.
There was a problem with the input amplitude to them. Seems that very small
changes in the input voltage of the tone comming to them would
It was not worth much around 1971 or 72 when I passed the first class. I was
about 21 at the time. I had never seen a TV transmitter and only got to look
into a 1000 watt AM station control room and could see the tubes through a
glass window. Passed it the first time.
I only wanted the
From: Larry Horlick llhorl...@gmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Mon, March 8, 2010 8:49:32 PM
Subject: [Repeater-Builder] RG designations
Anyone want to take a stab at this, or point me to a good primer on this topic?
The datasheet for
--- On Sun, 2/28/10, Larry Horlick llhorl...@gmail.com wrote:
From: Larry Horlick llhorl...@gmail.com
Subject: Re: [Repeater-Builder] Micor Stock Power Supplies
To: Repeater-Builder@yahoogroups.com
Date: Sunday, February 28, 2010, 7:26 PM
What's the rationale behind the LMR ban?
--- On Sun, 2/28/10, Larry Horlick llhorl...@gmail.com wrote:
From: Larry Horlick llhorl...@gmail.com
Subject: Re: [Repeater-Builder] Micor Stock Power Supplies
To: Repeater-Builder@yahoogroups.com
Date: Sunday, February 28, 2010, 9:49 PM
Andrew has a coaxial cable similar
--- On Wed, 11/25/09, W3ML w...@arrl.net wrote:
From: W3ML w...@arrl.net
Subject: [Repeater-Builder] pre-amp placement
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, November 25, 2009, 10:46 PM
Hi,
I have now read two different things about where to put the
pre-amp.
One says
--- On Tue, 11/10/09, ab6li johnever...@sbcglobal.net wrote:
From: ab6li johnever...@sbcglobal.net
Subject: [Repeater-Builder] Coiling excess coax.
To: Repeater-Builder@yahoogroups.com
Date: Tuesday, November 10, 2009, 1:39 AM
Hello to the group.
I would like to gather some opinions on
--- On Thu, 10/15/09, Randy Ross rr...@librtynet.com wrote:
From: Randy Ross rr...@librtynet.com
Subject: [Repeater-Builder] Maybe a strange question...
To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
Date: Thursday, October 15, 2009, 9:04 PM
Our repeater
--- On Wed, 10/7/09, Juan Tellez xe...@grupocimsa.com wrote:
From: Juan Tellez xe...@grupocimsa.com
Subject: RE: [Repeater-Builder] Question on portable repeaters
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, October 7, 2009, 9:43 PM
Maybe the gentleman wants a VHF
--- On Tue, 10/6/09, W3ML w...@arrl.net wrote:
From: W3ML w...@arrl.net
Subject: [Repeater-Builder] Re: Radio for repeater use Response to Tom's
comments
To: Repeater-Builder@yahoogroups.com
Date: Tuesday, October 6, 2009, 5:36 PM
Well Chuck, there will be no new
As I have said before
--- On Mon, 10/5/09, John johnk.mch...@att.net wrote:
From: John johnk.mch...@att.net
Subject: [Repeater-Builder] Cleaning coax corrosion
To: Repeater-Builder@yahoogroups.com
Date: Monday, October 5, 2009, 3:59 PM
Hi,
I need to replace a PL-259 on the end of a piece of RG-8U
at the
--- On Fri, 9/11/09, Steven Schultz steven.schult...@gmail.com wrote:
From: Steven Schultz steven.schult...@gmail.com
Subject: Re: [Repeater-Builder] Diplex antenna installation using coaxial cable
for 10M and 6 M
To: Repeater-Builder@yahoogroups.com
Date: Friday, September 11, 2009, 5:29 PM
--- On Tue, 9/1/09, tahrens301 tahr...@swtexas.net wrote:
From: tahrens301 tahr...@swtexas.net
Subject: [Repeater-Builder] Re: Antenna SWR = Desense?
To: Repeater-Builder@yahoogroups.com
Date: Tuesday, September 1, 2009, 5:29 PM
Hi Jeff,
I'll try a different antenna... perhaps that's
--- On Sun, 8/30/09, WA3GIN wa3...@comcast.net wrote:
From: WA3GIN wa3...@comcast.net
Subject: Re: [Repeater-Builder] Nearby Repeaters
To: Repeater-Builder@yahoogroups.com
Date: Sunday, August 30, 2009, 10:37 PM
4 miles
***
If I understand it correctly you
--- On Mon, 8/10/09, tahrens301 tahr...@swtexas.net wrote:
From: tahrens301 tahr...@swtexas.net
Subject: [Repeater-Builder] Re: Notch Cavities + 600KHz Repeater = Work?
To: Repeater-Builder@yahoogroups.com
Date: Monday, August 10, 2009, 1:21 PM
Hi Dcflu7x,
It's a DB products SP-1894.
--- On Sun, 7/26/09, Steve petn...@sbcglobal.net wrote:
From: Steve petn...@sbcglobal.net
Subject: [Repeater-Builder] Re: Closed Repeaters
To: Repeater-Builder@yahoogroups.com
Date: Sunday, July 26, 2009, 10:35 PM
This is a bit of another example
where people want to extend their
--- On Mon, 7/27/09, Don Kupferschmidt d...@httpd.org wrote:
From: Don Kupferschmidt d...@httpd.org
Subject: Re: [Repeater-Builder] Re: Closed Repeaters
To: Repeater-Builder@yahoogroups.com
Date: Monday, July 27, 2009, 8:52 PM
I've been watching this post for a
number of days now. Seems
--- On Sun, 5/24/09, agrimm0034 agrimm0...@yahoo.com wrote:
From: agrimm0034 agrimm0...@yahoo.com
Subject: [Repeater-Builder] Re: New Transmitting Antenna SWR Question
To: Repeater-Builder@yahoogroups.com
Date: Sunday, May 24, 2009, 11:36 AM
It came with some cutting charts to
cut the 3
--- On Fri, 5/22/09, Christopher Hodgdon chris.hodg...@kaufman-ares.org wrote:
From: Christopher Hodgdon chris.hodg...@kaufman-ares.org
Subject: [Repeater-Builder] One way transmitting question
To: Repeater-Builder@yahoogroups.com
Date: Friday, May 22, 2009, 6:43 PM
Ok, I have a question
--- On Wed, 5/20/09, Charles Lowery clow...@va.net wrote:
From: Charles Lowery clow...@va.net
Subject: [Repeater-Builder] Help with power supply
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, May 20, 2009, 1:27 PM
I purchased a Uniden 28 volt power
supply today on ebay. It lookes
--- On Sat, 5/2/09, va...@securenet.net va...@securenet.net wrote:
From: va...@securenet.net va...@securenet.net
Subject: [Repeater-Builder] desense question
To: Repeater-Builder@yahoogroups.com
Date: Saturday, May 2, 2009, 7:44 PM
Running the hamtronics REP-200 with the optional 15 watt
You probably overlooked the simple thing. The PTT line is DC and once the SCR
fires it will latch. If you had AC then the voltage goes to zero and the SCR
unlatches.
--- On Fri, 4/17/09, Vernon Densler m...@highwayusa.com wrote:
From: Vernon Densler m...@highwayusa.com
Subject: RE:
--- On Wed, 4/15/09, John Transue jtran...@cox.net wrote:
From: John Transue jtran...@cox.net
Subject: RE: [Repeater-Builder] Remote Receiver
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, April 15, 2009, 1:45 PM
Lance, Mark, Cort, Butch, Bob, Chris, and others,
Thanks for the
--- On Mon, 3/23/09, chris Inos chris_i...@yahoo.com wrote:
From: chris Inos chris_i...@yahoo.com
Subject: [Repeater-Builder] Asntenna Painting
To: Repeater-Builder@yahoogroups.com
Date: Monday, March 23, 2009, 7:59 PM
I am seeking advise ...but if I can be pointed to the right
--- On Thu, 3/12/09, neal Newman cozy...@yahoo.com wrote:
From: neal Newman cozy...@yahoo.com
Subject: Re: [Repeater-Builder] Quieting duplex noise from a tower
To: Repeater-Builder@yahoogroups.com
Date: Thursday, March 12, 2009, 4:55 PM
Samething here in NJ. the Club put all new Db
--- On Sun, 2/8/09, mike m...@verizon.net wrote:
From: mike m...@verizon.net
Subject: [Repeater-Builder] re: Decibel folded dipole
To: Repeater-Builder@yahoogroups.com
Date: Sunday, February 8, 2009, 7:15 AM
Hi
Thanks for the replies on this topic. I measured the
dipole loop and
--- On Wed, 2/4/09, Ralph S. Turk w7...@comcast.net wrote:
From: Ralph S. Turk w7...@comcast.net
Subject: Re: [Repeater-Builder] Re: Hamtronics Helical Resonator Preamp or
Advanced Research Preamp
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, February 4, 2009, 9:11 PM
--- On Sat, 1/31/09, Joe Serocki joesero...@gmail.com wrote:
From: Joe Serocki joesero...@gmail.com
Subject: [Repeater-Builder] CD IDer needed for GR300
To: Repeater-Builder@yahoogroups.com
Date: Saturday, January 31, 2009, 3:36 PM
I have a GR300 with M120/M10 radios. Seems nice, puts
After all that have you sent the FCC a complaint about him ? They should step
in and help you.
--- On Wed, 1/28/09, Mike Besemer (WM4B) mwbese...@cox.net wrote:
From: Mike Besemer (WM4B) mwbese...@cox.net
Subject: RE: [Repeater-Builder] Re: 2 meter noise help!
To:
--- On Sun, 1/18/09, Ray Brown kb0...@sbcglobal.net wrote:
From: Ray Brown kb0...@sbcglobal.net
Subject: Re: [Repeater-Builder] Off Topic
To: Repeater-Builder@yahoogroups.com
Date: Sunday, January 18, 2009, 6:03 PM
- Original Message -
From: Mark n9...@ameritech.net
The
--- On Sun, 1/18/09, Dennis Wade sacramento.cycl...@gmail.com wrote:
From: Dennis Wade sacramento.cycl...@gmail.com
Subject: Re: [Repeater-Builder] Re: Running or Booting Dos Radio Programs in
- with Windows 98se
To: Repeater-Builder@yahoogroups.com
Date: Sunday, January 18, 2009, 8:29
--- On Sun, 11/23/08, Eric Lemmon [EMAIL PROTECTED] wrote:
From: Eric Lemmon [EMAIL PROTECTED]
Subject: RE: [Repeater-Builder] MFJ Analyzers (was Need SWR meter
recomendation)
To: Repeater-Builder@yahoogroups.com
Date: Sunday, November 23, 2008, 4:54 PM
The file in question likely
--- On Tue, 11/18/08, Robin Midgett K4IDC [EMAIL PROTECTED] wrote:
From: Robin Midgett K4IDC [EMAIL PROTECTED]
Subject: Re: [Repeater-Builder] VHF Engineering
To: Repeater-Builder@yahoogroups.com
Cc: [EMAIL PROTECTED]
Date: Tuesday, November 18, 2008, 10:34 AM
I have a large format
--- On Sat, 11/15/08, G Shaw [EMAIL PROTECTED] wrote:
From: G Shaw [EMAIL PROTECTED]
Subject: RE: [Repeater-Builder] OT: Stationmaster Pd-220
To: Repeater-Builder@yahoogroups.com
Date: Saturday, November 15, 2008, 9:51 AM
Hi Ryan
One other point. You stated that you changed feedline
--- On Wed, 9/24/08, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
From: [EMAIL PROTECTED] [EMAIL PROTECTED]
Subject: Re: [Repeater-Builder] coax length
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, September 24, 2008, 12:14 AM
John,
Very well then, I guess I need to be shopping for
--- On Tue, 9/16/08, Albert [EMAIL PROTECTED] wrote:
From: Albert [EMAIL PROTECTED]
Subject: [Repeater-Builder] Volt-Amp(Re: APC UPS Charging Power)
To: Repeater-Builder@yahoogroups.com
Date: Tuesday, September 16, 2008, 5:12 PM
Hopefully you will forgive me hijacking the post but
--- On Fri, 9/5/08, Ian Miller [EMAIL PROTECTED] wrote:
From: Ian Miller [EMAIL PROTECTED]
Subject: [Repeater-Builder] Antenna question
To: Repeater-Builder@yahoogroups.com
Date: Friday, September 5, 2008, 9:43 AM
Our group has a Sinclair 8 dipole array for UHF.
The repeater was
--- On Sat, 8/23/08, Richard [EMAIL PROTECTED] wrote:
From: Richard [EMAIL PROTECTED]
Subject: RE: [Repeater-Builder] We all Love Super 33+ - Was Antenna connectors
sealing instructions
To: Repeater-Builder@yahoogroups.com
Date: Saturday, August 23, 2008, 8:07 PM
Lowes.com at $3.84 a roll.
Also I remember there is an optimum angle to
droop them to get the
main lobe at the horizon-I want to say between 30 and 45
degrees down
from horizontal. Affects impedance too if I
remember...it's late
The ground plane elements are usually drooped about 45 deg to get the
--- On Tue, 7/29/08, Ray [EMAIL PROTECTED] wrote:
From: Ray [EMAIL PROTECTED]
Subject: [Repeater-Builder] OT maybe info wanted on 220 crystal rigs
To: Repeater-Builder@yahoogroups.com
Date: Tuesday, July 29, 2008, 12:41 PM
Anyone on the list know if its a good idea to purchase a
good
--- On Fri, 7/25/08, garyp609 [EMAIL PROTECTED] wrote:
From: garyp609 [EMAIL PROTECTED]
Subject: [Repeater-Builder] Re: How to figure cable length for duplexer?
To: Repeater-Builder@yahoogroups.com
Date: Friday, July 25, 2008, 7:09 PM
Jim,
Thanks for the response. The duplexer is a
Get rid of the rg-8x and get some double shielded cable. Even a couple of feet
of single shielded cable can cause much desense.
Depending on the sensitivity and power level, a 4 cavity duplexer is just
barley enough for a 600 KHz spacing on 2 meters.
--- On Fri, 7/18/08, Mike Besemer
--- On Wed, 6/4/08, Willis M. Hagler [EMAIL PROTECTED] wrote:
From: Willis M. Hagler [EMAIL PROTECTED]
Subject: [Repeater-Builder] Re: 455khz filter for Mastr II discriminator audio
To: Repeater-Builder@yahoogroups.com
Date: Wednesday, June 4, 2008, 5:54 PM
Whoa, where did we get off on
--- On Fri, 5/9/08, Laryn Lohman [EMAIL PROTECTED] wrote:
From: Laryn Lohman [EMAIL PROTECTED]
Subject: [Repeater-Builder] Re: antenna question - Dip It and Scotch Kote and
Kry
To: Repeater-Builder@yahoogroups.com
Date: Friday, May 9, 2008, 12:09 AM
--- In
look here:
http://www.wiscointl.com/celwave/antennas/pd220/spec.htm
http://www.lakelandarc.org/downloads/stationmaster.pdf
--- On Mon, 4/21/08, Joe [EMAIL PROTECTED] wrote:
From: Joe [EMAIL PROTECTED]
Subject: [Repeater-Builder] Super Stationmaster™ Omni Fiberglass Antenna,
information
Dexter leave out the WWW.
AS:
http://good-times.webshots.com/album/562985533mLTuoH
--- Dexter McIntyre W4DEX [EMAIL PROTECTED] wrote:
I've tried several ways to put the link together
with no success. These
don't work for me:
http://www.good-times.webshots.com/album/562985533mLTuoH
--- dallasreact112 [EMAIL PROTECTED] wrote:
I have access to a spare run of about 150' 1-1/2
heliax at a repeater
site. It goes from the Radio Room to the roof.
There is no antenna
connected to it. I would like to verify if it still
any good.
Obviously, hooking it up to a TDR would be a
--- Eric Lemmon [EMAIL PROTECTED] wrote:
Stu,
I think 250 watts is far too much power for that
duplexer to properly
isolate. Try running just your exciter, or try no
more than 30 watts or so.
My 220 repeater runs just 18 watts, and it is almost
perfectly balanced. I
am using the same
--- MCH [EMAIL PROTECTED] wrote:
Only if you're using a rig with a skewed S-meter
(and today many are
made that way). There are standards for proper
S-meter calibration.
While most people seem to agree that there is a
standard, almost no receiver is calibrated to the
'standard'. The low
--- Jim [EMAIL PROTECTED] wrote:
Shanon KA8SPW wrote:
So moral of the story, you run the risk of
liability. So just don't do
it. I know we all want the shortest run but those
are the rules. Run
it outside the room to another area or you may
pay. Heck, it might be
you in the
--- [EMAIL PROTECTED] wrote:
I thought LMR400 was supposed to be good on 2m.
That is
what I am using. Maybe that is part of the problem
I am
having. Is LMR600 the same way? I am running that
from
the antenna to the duplexer only. Everything else
is
double shielded.
Vern
--- Nate Duehr [EMAIL PROTECTED] wrote:
I have no other comment on the thread, other than
that... simplex
frequencies in a local bandplan are usually outside
of the bounds of
where repeaters are allowed to operate by law.
--
Nate Duehr, WY0X
[EMAIL PROTECTED]
Most simplex
--- Joel [EMAIL PROTECTED] wrote:
Ok Skipp, and Jesse,
So, I supposed that the specification of such,
should be presented by the manufacturers of the
said, and with the said, right! Or there is a
general concept for duplexers, as in both examples,
.1 to 3dB Jesse, and Skipp input loss
--- Ron Wright [EMAIL PROTECTED] wrote:
On Aug 30, 2007, at 12:35 AM, ldgelectronics wrote:
As a quick and dirty method, the radio horizon
is:
Distance (in miles) = Square Root of (2 * height
in feet).
This equation is ok, but for a perfect spheer. Is a
--- Ron Wright [EMAIL PROTECTED] wrote:
Ralph,
I am sure the equation is
Distance (in miles) = Square Root of (2 * height
in feet)
not
Distance (in miles) = Square Root (height in feet).
Then my refferance (ARRL Antenna Book 1974 version
page 11) must be wrong. They give
--- DCFluX [EMAIL PROTECTED] wrote:
Perhaps they should mark the jacket with 'Contains
no copper' to
deture cell site theft as well.
I think the price of aluminum is up enough also to
make it worth while to scrap. I have heard of reports
of aluminum siding being ripped off.
--- Ron Wright [EMAIL PROTECTED] wrote:
Jesse,
Then why do twin feeders have much less loss than
coax??? Skin affect is even more of a factor there
due to the differences in the area of the outer
shield in coax vs the twin feeders wire.
Maybe it is because of the larger C coupling in
--- Jeff DePolo [EMAIL PROTECTED] wrote:
When you put the Bird between the TX and the
duplexer, you
have changed the
length of the jumper cable, which upset the
tuning.
Adding a wattmeter or any other length of cable
between the transmitter and
the duplexer Tx input port has no
--- Eric Lemmon [EMAIL PROTECTED] wrote:
Bernie,
When you put the Bird between the TX and the
duplexer, you have changed the
length of the jumper cable, which upset the tuning.
But, really, you need
not worry about what the SWR is, if the forward
power to the antenna is
appropriate.
--- Don Kupferschmidt [EMAIL PROTECTED] wrote:
Hi all,
Recently I posted a question on renewing my Dad's
license. I received a lot of response from you, and
I was successful in renewing his license.
Now, I'm noticing something different, though. From
1997 to 2007, he was listed as a
--- Jack Taylor [EMAIL PROTECTED] wrote:
I get a HTTP 404 Not Found response for
www.bosshardradio.com
Jack
- Original Message -
From: Steve Bosshard (NU5D)
To: Repeater-Builder@yahoogroups.com
Sent: Wednesday, February 21, 2007 7:03 AM
Subject: Re:
--- Brian Rau [EMAIL PROTECTED] wrote:
Thanks for your input, I was hoping to hear from
someone who had
experience with this kind of rig. I've been trying
the vertical
antenna separation tactic, which *in theory* puts
the antennas in each
others' nulls, but I think the reality is that
--- wa5luy [EMAIL PROTECTED] wrote:
Thanks to all that replied about the part number of
the GaSa transistor.
Wow!
I learned about Chip Angles Porsche 911 preamps,
ARR's Cadillac repair
service,golden screwdrivers, platinum screwdrivers,
and all kinds of
information on tuning up preamps
--- dan ryant [EMAIL PROTECTED] wrote:
the problem with moving the repeater is that there
isn't any buildings near the mast, and building one
would pretty much be out of the question due to the
cost involved and the slope of the hill that the
tower is on. Not to mention the trees that
Not sure if anyone wants this, but I did see where on
the repeater builders page some of the files may be
needed. A few are from the Repeater Builders page,
but I do have the COR and Repeater manual files.
http://home.earthlink.net/~ku4pt/data/
I will probably leave this up tuil I need the
--- Gary [EMAIL PROTECTED] wrote:
Yeah, the RS and RM series are electrically the same
however, the schematics
vary depending upon the year of print. I have the
RS-50M schematic from 2000
off the RB website. I requested a schematic from the
rocket scientists at
Astron. What they sent is
--- Steve Bosshard (NU5D) [EMAIL PROTECTED]
wrote:
There is a formula in most hand books where the
characteristic impedance can
be determined from the inner diameter of the shield
and the outer diameter
of the center conductor. I have built many
makeshift connectors using an
UHF barrel,
--- Lee Williams [EMAIL PROTECTED] wrote:
I on the other hand run my fans 24/7,why switch them
at all? 28 years
with the same PA transistors,I guess GE had the
right idea! 73,Lee
Chuck Kelsey wrote:
Maybe I'm missing something here, but I've never
subscribed to the theory of
--- Thomas Flint [EMAIL PROTECTED] wrote:
I have a dual band magent mount antenna, the other
day during high
winds I lost the antenna part. Do to financial
issues I am unable to
buy another at this time. Does anyone know of away
I can make it work
using something else in its place.
--- Jeff DePolo [EMAIL PROTECTED] wrote:
Trying to find a datasheet for an RF power
transistor - SD1499-1. These
were made by Thomson/ST Micro. Can't seem to find
anything on-line, not
even a cross-reference. Any help would be
appreciated. Thanks.
Maybe a 2sd1499 ?
--- Jamey Wright [EMAIL PROTECTED] wrote:
I just got through tuning up a Phelps Dodge VHF
bandpass cavity. The
measured loss through this thing is 3.2 db. I am
generating at -10 dbm.
The level measured on the output is -13.2 dbm. It
is a Phelps Dodge VHF
bandpass cavity but I can't
--- Dennis Wade [EMAIL PROTECTED] wrote:
Good morning all,
I am looking for a UHF element for the
above wattmeter.
There were various power and specific frequency
ranges made...I need
one that will cover the 440 amateur band at minimum.
The element that
went to 1 Ghz would
--- Don [EMAIL PROTECTED] wrote:
Hello all I am looking to buy A Bird Model 43
Element 150-250 Mhz
2.5 Watts 150-250 MHz
What I would like to know is there a way to
Calculate the accuracy in
using this Slug on 2 Meters 144-148, As everyone
knows Elements are
expensive and I would like
--- [EMAIL PROTECTED] wrote:
I would also be interested in this.
Over the weekend, I picked up a VHF Engineering
repeater that had the
CWID board removed to be used on the repeater that
replaced it.
David
KD4NUE
So you need the VHF Engineering CW ID board ?
Here is the
--- Eric Lemmon [EMAIL PROTECTED] wrote:
Neil,
No correction needed- you're absolutely correct.
Furthermore, the telephone
line protector, the cable TV coaxial shield, and the
lightning protection
system (if used) must ALL be bonded to the same
grounding system as the
electrical
Is there a place that I can find a schematic for an
ARR gasfet preamp ? I need the one with the switching
relays. The two meter version, but they are probably
all the same.
__
Yahoo! Mail for Mobile
Take Yahoo! Mail with you! Check email
Has anyone ran into RF being induced in the antenna of
a tower enough to cause a shock ?
The setup is a tower 100 feet tall. On top is a
Station master cut for the two meter band. There are
a couple of smaller antennas on the tower. About 25
feet away is a 150 foot tower. On it are several
Ok Chuk start hoisting. The I measured the resistance
with a low current Fluke meter and got 3.46 K ohms and
put some current to the meter movement and got 100
microamps for the full scale. This was with the meter
wires disconnected from the circuit.
Sorry to take so long to do it.
73 de
OTOH, if you can put your receiver and transmitter
any appreciable distance
apart, and use two antennas and feedline, then you
just need to wireline the
audio signals between them.
Wireline from about 1000 feet to a couple of miles ?
I don't think so. Sepreation of this distance for
Thanks to :
Marvin Hoffman [EMAIL PROTECTED]
I have a very nice PDF file of the Sinadder I was
looking for .
I was asked if this could be put in the files section.
This I don't know if it is legal or if the group
owner would want it there. Kevin migh be able to put
it in the Repeater
Does anyone have a link to an online manual for the
Helper Instruments Sinadder ?
I know how to use one but would like to see what the
book has to say about it, maybe even a schematic
incase I need to repair it at a later date.
__
Do You Yahoo!?
--- DCFluX [EMAIL PROTECTED] wrote:
Anyone have any experience with the TX-220 by VHF
Engineering? I am
debateing building it or just sticking with the
FM-76
I know of a couple of the VHF Engineering repeaters
that have been on the air for many years. Not too
sure how they would be
--- w7aor [EMAIL PROTECTED] wrote:
Eric Lemmon WB6FLY gave the best response to my
question of how
common is it to place a bandpass fillter betweeen
antenna and
duplexer. Most assumed a ham repeater with tx
circulator and high
rejection pass/reject duplexer which is correct.
About
--- Brian [EMAIL PROTECTED] wrote:
Our local club has been running a 10 Yausu 2410 2
meter
repeater for many years. It is run through a Wacom
wp-641 4 can
duplexer. Great results from this unit and it hears
excellentWe
recently aquired a new vertex vxr-7000 do to some
--- Jim Cicirello [EMAIL PROTECTED] wrote:
A question for someone who has working knowledge of
the IFR 1200/A
Service Monitor. Will this monitor act like a
frequency counter and
read frequencies off the air? I have been unable to
find the answer.
Thanks in advance. JIM KA2AJH
No It
--- georgiaskywarn [EMAIL PROTECTED] wrote:
Need to know where to pick off the disc. audio.
Needing to put a TS32
board on it. This will be used for a link radio.
Is also has the
acces. jack on the back...but I don't have a
schematic...and to
reverse engineer it would be a mess with
--- steve [EMAIL PROTECTED] wrote:
Hi
Living in the UK our repeaters are very closley
monitored.
What are the rules in the US for repeaters, do the
FCC tell
you what you can have.
73
Steve M1SWB
You can find the USA rules here for all ham stations.
There is very little about
--- steve [EMAIL PROTECTED] wrote:
Thanks Chris
sounds like the US hams, unless they do silly
things, look
after all the repeater stuff, so, correct me if Iam
wrong, if a ham wants to setup a repeater can he jst
go ahead and do it.
What sort of TX power restrictions are there, here
it
--- Dave VanHorn [EMAIL PROTECTED] wrote:
Does anyone have a pointer to a low level signal
source, VHF/UHF?
I don't have a service monitor, and I can't really
justify one.
I occasionally need to tune up a receiver.
What I don't have, is a signal source at the 10uV
and down level.
--- mch [EMAIL PROTECTED] wrote:
Thanks for the quick reply. I couldn't find that
anywhere on the net.
I have a guy who is telling me that 0.34 dB (at 900
MHz)
is too much loss on a SCANNER antenna run. LOL!
I'm going to ask him if I should use HJ9-50 instead.
;-
While that may be
--- Dave VanHorn [EMAIL PROTECTED] wrote:
Ok, I've been given several frequencies to listen
to, prior to
getting a pair assigned.
What troubles me is that my home setup is never
going to hear what I
would hear at the repeater site.
I could put the receiver at the repeater site, but
--- Mathew Quaife [EMAIL PROTECTED] wrote:
Just for curiosity sake, and please no debates, I'm
only curious at
this point for knowledge, and to satisfy a question
that was asked of
me. Currently I have a 6 cavity TX/RX duplexer
system, which has 2.2
dB of isolation. The system is
--- Mathew Quaife [EMAIL PROTECTED] wrote:
Well the figures I took are from memory, but your
right, it's more likely about 80 watts out, but at
either rate, got the answer that I was looking for.
I'm not changing anything here, as it works, and if
I mess with it, it WON'T, but one of the
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