Ryan,
The information you want is at http://www.prestonmoore.com/opc-617.html
JOhn
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com]
On Behalf Of ryan_151
Sent: Tuesday, July 13, 2010 10:26 PM
To: Repeater-Builder@yahoogroups.com
as the
RF picked up by the antenna from nearby transmitters will cause an
error in checking the performance of the antenna under test.
73 - Jim W5ZIT
--- On Sun, 1/31/10, John Transue jtran...@cox.net wrote:
From: John Transue jtran...@cox.net
Subject: [Repeater-Builder] Which Antenna Analyzer
I would like to have an antenna analyzer. The most common with hams
seems to be the MFJ analyzers, but I am not a fan of MFJ. So, what do
you all use? I'd like the analyzer to cover HF through ham UHF. It
would be nice to have it tell me the sign of the reactance, but I
guess this can be easily
I would be interested in the 2-m cans. What are the make and model?
And where are they located?
John AF4PD
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Philip Barnes-Roberts WA6DZS
Sent: Monday, December 07, 2009 12:42
] On Behalf Of John Transue
Sent: Saturday, November 07, 2009 10:14 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] LDG Voter RVS-8 Mystery
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Thomas Oliver
Our club recently added a remote receiver and RF link to our club
repeater. We are using an ACC RC-850 controller at the repeater site.
We added an LDG RVS-8 voter so we would not have to use PL and to make
life easier for mobile users.
Now we have a problem. When I set up the voter, the POTs
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Randy
Sent: Saturday, November 07, 2009 10:59 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: LDG Voter RVS-8 Mystery
John is the inputs Capacitor
-Original Message-
Is there any way something external to the
voter
could cause the voter POTs to behave this way?
DC riding on the audio signal?
Kevin
Kevin,
Each of the eight audio inputs to the voter is protected from DC by a
condenser. The audio out is also protected by a
DCFlux,
Comments are added to your text below. Thanks for the suggestions.
John
-Original Message-***[with portions deleted]
From: On Behalf Of DCFluX
Sent: Saturday, November 07, 2009 5:46 PM
Subject: Re: [Repeater-Builder] LDG Voter RVS-8 Mystery
TP11 - TP19 should show +6
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Thomas Oliver
Sent: Saturday, November 07, 2009 7:45 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] LDG Voter RVS-8 Mystery
I would first try
Skipp,
I appreciate your suggestions. I will follow your advice to see
whether input level is causing the erratic behavior. Many thanks for
your analysis and advice.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of
Martin,
I have some 1-5/8 inch stubs I planned to use for a 6-m repeater.
The Club found a complete repeater available at a good price, so I
aborted my work. You are welcome to what I have if you pick it up. I
am in northern Virginia, near DC.
John
AF4PD
-Original Message-
From:
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Carlos Quinones
Sent: Friday, October 09, 2009 8:15 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] help icom f121s
need help i have icom f121s for
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of wp4mxb
Sent: Friday, October 02, 2009 6:07 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] need help on a set of 2 icom 121s
hello everyone i am trying
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of surf_boy82
Sent: Saturday, August 29, 2009 9:11 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Wanted: IFR FM/AM 1500 Owners Manual
Does anyone have an
-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] 50-Ohm Pads
Not sure what your attachment was, it was all scrambled.
Attenuators:
http://www.minicircuits.com/products/attenuators_coax_fixed.html
Chuck
WB2EDV
- Original Message -
From: John Transue jtran...@cox.net
To: Repeater
Can anyone recommend a good source for 50-ohm pads? Also, 50-ohm
variable attenuators.
John Transue
to reverse the sense of
COS with the RC-850 controller.
John
AF4PD
-Original Message-
From: acc-controll...@yahoogroups.com [mailto:ACC-
controll...@yahoogroups.com] On Behalf Of John Transue
Sent: Saturday, July 11, 2009 1:24 PM
To: acc-controll...@yahoogroups.com
Subject: [ACC-Controllers
Congrats. What did you have to pay?
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Jim WB5OXQ inb
Waco, TX
Sent: Tuesday, July 14, 2009 6:22 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
elementary, but I am
not competent to design these simple circuits. I will gladly build
them. I would appreciate any help you can provide on the design.
Thanks.
John Transue AF4PD
Razvan, Eric, DCFlux, Jim,
Thanks for the great response. I think I can proceed with the info you
have provided. I should be able to build the simple circuits. Thanks.
What a great thing this RB!
John
This message was checked by NOD32 antivirus system.
http://www.eset.com
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of surf_boy82
Sent: Sunday, July 05, 2009 8:35 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] WTT (Potentially): CAT 1000B w/ options
for ACC RC96
Hi
Scott, Nate, Paul,
Written words can seem more harsh than intended.
This group does a great service to repeater builders and owners. I
have benefited from it. And I believe any repeater owner, no matter
how knowledgeable, can benefit. Many problems are solved. Much
assistance is given
.
John Transue AF4PD
703 534 5102
Joe,
Thanks. I have read the Application Notes in the RB files library.
Yes, it is very helpful. I am only guessing, but I think there must
also be a Users Guide or Operator's Manual or something of the
kind. I have received one response indicating there is such a thing,
and I have requested it
Aa4ji,
Are there operation manuals or maintenance manuals for the controller
and voter available on the web?
John
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of aa4ji
Sent: Monday, June 08, 2009 3:16 PM
To:
I need a voter for two receivers. The LDG voter does up to eight
receivers, and I like it, but it costs over $300. Does anyone make a
voter that is less expensive?
I don't have a price for Doug Hill but his equipment looks like major
overkill, and I expect it is even more expensive than the LDG
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Jim Kvochick
Sent: Friday, April 24, 2009 11:42 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Remote Receiver
We've had real good luck
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of wd8chl
Sent: Thursday, May 07, 2009 4:41 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Ham installation quality/non-
quality
John Transue wrote
Well, I wanted to use GM300s until I found out that I can't afford the
software and cable to program these radios. Now it looks like I will
have to settle for new ham gear. With the Motorola radios, I'd have to
take the radios to a shop and pay $45 per radio every time I wanted to
change
But /R is a suffix, not a prefix. So isnt allowed?
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of mwbese...@cox.net
Sent: Monday, May 04, 2009 8:54 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
John,
I agree with Larry that the problem is that you have transmitter and
receiver too close in frequency and in separation distance. I am not an
expert, but I think you might try using a couple notch filters; i.e.
notch the receive frequency out of the transmitter and notch the
transmitter
Thanks to you all for good advice. The project is to have a VHF receiver
(remote receiver), a UHF link transmitter, a UHF link receiver (at the
base repeater site), and probably a voter. All of this is in ham bands.
I am getting the idea that good choices for the radios would be MaxTrac,
Radius,
again. More suggestions are welcome.
John Transue AF4PD
__ NOD32 4010 (20090415) Information __
This message was checked by NOD32 antivirus system.
http://www.eset.com
equipment. We do not have a frequency coordinated for the link,
but will do that when I know what band we want to use.
Thanks in advance for your views.
John Transue
AF4PD
The R-B Yahoo group provides a valuable service. Many thanks to Kevin,
the moderators, the experts who offer their advice, and everyone who
makes this group work.
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com
Here is a source:
http://www.oliner.com/fishpaper.htm
John
AF4PD
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of dallasreact112
Sent: Thursday, March 05, 2009 5:29 PM
To: Repeater-Builder@yahoogroups.com
Subject:
Francois,
Check eBay number 250358623321
John
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of François Bérubé (VA2RC)
Sent: Sunday, January 18, 2009 9:24 AM
To: Repeater-Builder@yahoogroups.com
Subject:
TKR-850 experts,
To save a trip out to the repeater site, could you answer the following
question for me? Thanks.
On the TKR-850, by default one of the PF (programmable function) keys is
set to repeat disable/enable. I am using the 850 as a full time
repeater. If that PF key is pushed, does the
Nate,
Very well done.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Nate Duehr
Sent: Saturday, January 10, 2009 3:28 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Fwd: In Memory
Thank
Kevin,
Is the list off line? I have not received any RB messages all day.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Joe
Sent: Monday, January 05, 2009 5:03 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
Eric,
You're AMAZING!! I'm glad you are watching the list.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Eric Lemmon
Sent: Friday, January 02, 2009 9:02 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE:
Joe,
I get the same message when trying to download the file. I have a hard
copy but no electronic copy. Let me know if you want me to copy it for
you.
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
buil...@yahoogroups.com] On Behalf Of Joe
Sent
using it, but this is not an absolute requirement.
Several people on RB have indicated that the MTR 2000 is far more
expensive than the Kenwood TKR-850. I would like a ball-park cost figure
to see for myself about what the difference would be.
Thanks for your interest and help.
John Transue
be used with or without a power amplifier (5W in, 90W
out). I would like the power out to be near the 90W. The frequency pair
has 5MHz separation. TX is on 448.375MHz; RX on 443.375MHz. The duplexer
is a Motorola T1504A
I would appreciate the benefit of your experience. Thanks.
John Transue
: Friday, November 21, 2008 10:27 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Good Repeaters for UHF Ham Band
Good Repeaters for UHF Ham BandJust curious... what do you have now
and why
are you replacing it?
Chuck
WB2EDV
- Original Message -
From: John Transue
To help me determine whether the Motorola MTR 2000 is our of my club's
funding range, would someone tell me approximately what a ham radio club
would have to pay for such a repeater?
John
I see several Vertex Standard VXR-7000 repeaters and one or two Kenwood
TKR-851 repeaters for sale on eBay. Are these good repeaters for a ham
repeater? Do they have known weaknesses or defects?
John Transue
I'm embarrassed to ask but, what the heck, what is a RICK?
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of skipp025
Sent: Wednesday, October 15, 2008 2:01 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder
Thanks, Bill. I think I could use such a box. Where are they available?
Are they a current Motorola product?
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, October 15, 2008 2:40 PM
Ken Arck and dcflux and others,
Thanks for the info.
John Transue
At 11:12 AM 10/15/2008, John Transue wrote:
I see several Vertex Standard VXR-7000 repeaters and one or two Kenwood
TKR-851 repeaters for sale on eBay. Are these good repeaters for a ham
repeater? Do they have known
Mark,
What is the offset? Where is it located?
JohnT
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of n9wys
Sent: Monday, October 06, 2008 11:56 AM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED];
Repeater-Builder@yahoogroups.com; [EMAIL
and fix it.
I removed the back trim. Should the front face and innards slide
forward out of the case?
Any help would be greatly appreciated. Thanks.
John Transue
AF4PD
Fred,
Thanks. I will look for that transistor if I get in. I appreciate the
advice.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Fred Townsend
Sent: Thursday, September 25, 2008 3:49 PM
To: Repeater-Builder@yahoogroups.com
the logic at x-location change state with an active receiver.
cheers,
s.
John Transue [EMAIL PROTECTED] wrote:
After reading and re-reading the manuals, I am still not 100 percent
certain what COS high and COS low mean. Please straighten me out.
When the signal is strong, greater than
Kevin,
Way to go!!
JohnT
P.S. You might have added that since you are not a teacher, you don't
have to deal with the parents and don't have to pamper the little
darlings.
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Kevin Custer
[mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com] On Behalf Of John Transue
Sent: Thursday, 4 September 2008 9:25 AM
To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com
Cc: [EMAIL PROTECTED] mailto:repeater%40viennawireless.org less.org
Well, I don't understand it, but yesterday afternoon the repeater seemed
to revert to a bad case of desense. Today I will try to determine why
this happened. Such is life!
JohnT
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John
Chuck,
Yes, I have looked at the spectrum and I don't see any spurs.
JohnT
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Wednesday, September 03, 2008 11:43 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re:
will probably vary.
One other item... pay attention to the actual RG-214 description
aka mfgrs label as there seem to be a larger number of clone
cables, which is not actually the mil-spec RG-214 cable real
deal.
cheers,
skipp
John Transue [EMAIL PROTECTED] wrote:
Well, I don't understand
RichardC, MikeM, and others,
Now that I see what a feed through cap is, I can recognize that the
feed throughs already go through these devices.
I will make up a probe today and see what I can find.
Thanks to all for the very helpful suggestions.
JohnT
-Original Message-
... I'll try this.
73, Eric Lemmon WB6FLY
Thanks, Eric.
JohnT
-Original Message-
From: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com
[mailto:Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com] On Behalf Of John Transue
Sent: Sunday
Eric, Bob, and many other good folks,
Success This being a holiday, I could not get RG400 to replace
the cable from the TX to the connector on the back of the repeater, so I
built a shield to completely enclose the cable. I also wrapped aluminum
tape around the receive cable in the
I've tried everything, it seems, and I still have desense!!
Even when I connect only the repeater (Yaesu Musen FTR-1510) and a
controller (needed to make the repeater transmit) and put a dummy load
on the TX out, I get desense.
Following up on Eric's suggestion about holes leaking RF, I sealed
-Builder%40yahoogroups.com
yahoogroups.com] On Behalf Of John Transue
Sent: Sunday, August 31, 2008 8:42 AM
To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com
Cc: [EMAIL PROTECTED] mailto:repeater%40viennawireless.org less.org
Subject: [Repeater-Builder] Wits End
Chuck, John Bob, Derek, Eric, Mike, JohnB, and Tom,
Thank you all for the helpful suggestions.
The connectors appear to be perfect, and they check out with DC.
The cable on the RX side is double shielded RG142B/U. The cable on
the TX side is not marked with a complete designation. It
Mark,
I'll try that. Thanks.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Mark Harrison
Sent: Sunday, August 31, 2008 8:49 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense
For a
it tightly with a nut.
Then attach the incoming wires to the outside of the cap.
Check Maggiore's web site...you might see a picture of them there as
they use them on their
Tx and Rx assemblies.
John VE3AMZ
- Original Message -
From: John Transue mailto:[EMAIL PROTECTED
@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John Transue
Sent: Wednesday, August 20, 2008 11:37 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] De-Sense and Circulator Question
First a big thank you to Eric, David, Rodney, and Robert. It seems clear
now that a circulator
change just
turning the transmitter on and offyou must work against a modulated
weak signal either into the antenna or via an iso-T.
- Original Message -
- Original Message -
From: John Transue mailto:[EMAIL PROTECTED]
To: Repeater-Builder
-Builder%40yahoogroups.com
yahoogroups.com] On Behalf Of John Transue
Sent: Tuesday, August 19, 2008 1:09 PM
To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com
Subject: [Repeater-Builder] De-Sense and Circulator Question
Members of Repeater Builder have been very helpful
within 100 feet.
The repeater is a Yaesu Musen FTR-5410. It drives a Mirage PA to about
90 watts.
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of KD4PBC
Sent: Wednesday, August 20, 2008 7:50 AM
To: Repeater-Builder
the foil and braid?
On Tue, Aug 19, 2008 at 5:15 PM, John Transue [EMAIL PROTECTED]
wrote:
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of DCFluX
Sent: Tuesday, August 19, 2008 4:13 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re
MHz apart.
On Wed, Aug 20, 2008 at 8:49 AM, John Transue [EMAIL PROTECTED]
mailto:jtransue%40cox.net net wrote:
The RG-214 is new. The cable was built by The RF Connection. I didn't
see the shield, but RG-214 is supposed to have two silver-plated
copper
shields according to everything I have read
Eric and others,
I have re-tuned the cavity to pass the TX frequency. However, it has
about 1.0 dB insertion loss at the TX frequency of 448.375. It had about
0.6 dB loss at 443.375. This was of little concern on the RX side.
However, on the TX side a 1 dB loss is 18 watts for a PA putting out 90
and further decrease the de-sense problem. Your advice would
be much appreciated.
I have no idea where to get a circulator or what to expect it to cost.
If you think a circulator would help, perhaps you can suggest sources
and prices.
Thanks.
John Transue
P.S. Additional info: The repeater runs about
9913 for a feedline?
No, I have RG-400 in the cabinet and RG-214 leading to the Heliax feed
line.
On Tue, Aug 19, 2008 at 1:08 PM, John Transue [EMAIL PROTECTED]
mailto:jtransue%40cox.net net wrote:
Members of Repeater Builder have been very helpful .snip Now I am
wondering whether
Kevin,
Thanks.
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Kevin Custer
Sent: Saturday, August 16, 2008 7:35 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Back up..
The list is back
Paul Holm,
Did you ever get the info you needed on the Yaesu FTR-2410 repeater?
John T.
-Original Message-
From: John Transue [mailto:[EMAIL PROTECTED]
Sent: Friday, June 06, 2008 7:46 PM
To: 'Paul Holm'
Subject: RE: [Repeater-Builder] need info on Yaesu FTR-2410A
Igor,
Yaesu did not reply to my question regarding availability and copyright
of the Yaesu repeater manual. I have not found anyone who can provide
this manual. Are you still in need of this manual, or did you find it
somewhere? Are you operating an FTR-2410A repeater?
John
Mike,
I had read this article but I have not followed the procedure to get a
measure of the RF noise floor. This would be worth while. I believe I
can and will do this. I had suspected inadequate duplexer operation, and
this still seems likely, and the article you suggested does not include
giving about
100 dB of separation?
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John Transue
Sent: Saturday, July 19, 2008 4:10 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Measuring Desense
] On Behalf Of John Transue
Sent: Saturday, July 12, 2008 6:51 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: RE: Re: [Repeater-Builder] Measuring Desense
Ron, Don, Joe, Jeff, Nate, and others,
Thanks for all the good ideas. And Ron, thanks for explaining that I
won't be damaging the signal
-Builder] Measuring Desense
John Transue [EMAIL PROTECTED] wrote:
I made the desense measurements, and I can't believe the
results. I get about 12 to 14 dB of desense. Is that possible?
May not all be desense but what the overall effect you experience
is lumped in together in the same
with the other band transmitting.
73, ron, n9ee/r
From: John Transue [EMAIL PROTECTED] mailto:jtransue%40cox.net net
Date: 2008/07/11 Fri PM 07:04:01 EDT
To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com
Subject: RE: Re: [Repeater-Builder] Measuring Desense
I
I made an isotee today by cutting off the central pin in a F-M-F tee. I
measured the attenuation by comparing the power through the tee to the
power that escapes from the isotee port. With the central pin cut off
flush with the dielectric the attenuation is about 38 dB. With the
central pin
So, please, someone tell me, what is an iso tee/sampler slug? How is the
equipment hooked up for the desense test?
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of de W5DK
Sent: Tuesday, July 08, 2008 11:47 PM
To:
, ron, n9ee/r
From: John Transue [EMAIL PROTECTED] mailto:jtransue%40cox.net net
Date: 2008/07/09 Wed AM 10:06:35 EDT
To: Repeater-Builder@ mailto:Repeater-Builder%40yahoogroups.com
yahoogroups.com
Subject: RE: [Repeater-Builder] Re: New Repeater Desense Problems
So,please, someone tell me, what
Perfect! except you want the antenna as high as possible! Hi
73
Don
W5DK
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John Transue
Sent: Wednesday, July 09, 2008 2:18 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Measuring Desense
... Ron
Bob,
Here it is again. Let me know if my message doesn't appear. Thanks.
John
-Original Message-
From: John Transue [mailto:[EMAIL PROTECTED]
Sent: Wednesday, July 02, 2008 1:39 PM
To: 'Repeater-Builder@yahoogroups.com'
Subject: RE: [Repeater-Builder] Cables on Duplexer
Bob,
Thanks. I have someone with good equipment coming Sunday to check it out
and re-tune as needed. I'll let you know what we found.
Re the de-sense, there are two other antennas close by but both are for
much higher frequencies. The three feed lines all go down the same
conduit. We are
Igor,
I have a manual but it is hard bound like a book, and I do not have a
way to copy it. It has fold-out pages that are too big to copy. I have
sent a question to Yaesu/Vertex Standard asking whether they have the
manual. I'll let you know what they reply.
John
-Original
Bob,
Thanks. I have someone with good equipment coming Sunday to check it out
and re-tune as needed. I'll let you know what we found.
Re the de-sense, there are two other antennas close by but both are for
much higher frequencies. The three feed lines all go down the same
conduit. We are
, could someone tell me whether the lengths of cables going
to the tee connector are significant? Any information and suggestions
are appreciated. Thanks.
John Transue
AF4PD
Bob,
I don't have a way to measure this accurately on the receive side, but
just using a signal generator and my ear, there appears to be about a 2
dB loss in the duplexer.
On the transmit side, using a transmitter and Bird power meter, there is
a 2 dB loss in the duplexer. Power in: 94
to scan and make it available to all. I do not
wish to part with it for long though because we are having some trouble
with repeater sensitivity, and it might be necessary to follow the
re-tuning instructions.
John Transue
-Original Message-
From: Repeater-Builder@yahoogroups.com
for the help. I don't think I can solve
this myself.
The radio is a UHF unit, and the audio/squelch board is 19D423789.
John Transue
AF4PD
Alexandre,
I made some cavities for a six-meter duplexer. The cavities are notch
filters. There is a web site on the subject. Just do a Google search on
six meter duplexer.
John
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of
CONCEPTS
Owner 146.64 repeater Tampa Bay, FL
No tone, all are welcome.
On Sun, May 11, 2008 at 10:24 PM, Laryn Lohman wrote:
--- In Repeater-Builder@ mailto:Repeater-Builder@yahoogroups.com
yahoogroups. com, John Transue [EMAIL PROTECTED] .
wrote:
Laryn K8TVZ
I would like to add a control receiver to a UHF (446 MHz) repeater. The
repeater is at a hospital that has allowed us to put up the repeater
antenna but is very hesitant to permit additional antennas. So, is there
a way that I can use the repeater antenna for both the repeater and the
control
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