@yahoogroups.com
To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
Sent: Sun Jul 12 11:01:30 2009
Subject: RE: [Repeater-Builder] Notch on duplexers... How low should they go???
Norm,
The tuning rods on the TX pair of cavities will be at different heights than
those on the RX pair
: Monday, July 13, 2009 11:09 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Notch on duplexers... How low should they
go???
Hi Eric
Sorry to bother you, but the link for the harness drawings didn't work. Can
you e-mail to me or can I not find this info on the repeater
on duplexers... How low should they
go???
Norm,
That's really odd- the link works fine from both home and work computers.
Nevertheless, I have sent you the file directly.
73, Eric Lemmon WB6FLY
@yahoogroups.com
Sent: Mon Jul 13 21:21:45 2009
Subject: [possible spam] RE: [Repeater-Builder] Notch on duplexers... How low
should they go???
Norm,
That's really odd- the link works fine from both home and work computers.
Nevertheless, I have sent you the file directly.
73, Eric Lemmon WB6FLY
I agree with Eric.
Unfortunately, new repeater owners sometimes can't resist tweaking the
last transmit can for maximum power output. If it is a BP/BR can, there
goes your receiver isolation.
73, Joe, K1ike
Eric Lemmon wrote:
Norm,
If the Q202-G duplexer is tuned exactly to spec, you
-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of AJ
Sent: Saturday, July 11, 2009 10:00 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Notch on duplexers... How low
should they go???
In my instance here...
Factory
-Builder] Notch on duplexers... How low should they go???
I agree with Eric.
Unfortunately, new repeater owners sometimes can't resist tweaking the
last transmit can for maximum power output. If it is a BP/BR can, there
goes your receiver isolation.
73, Joe, K1ike
Eric Lemmon wrote:
Norm
:51 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Notch on duplexers... How low should they
go???
With a preamp, if you're only getting -106 dBm sensitivity, something is
wrong. If memory serves, the spec for 12 dB SINAD without the preamp for a
highband Mastr II is 0.35
@yahoogroups.com Repeater-Builder@yahoogroups.com
To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
Sent: Sun Jul 12 09:50:54 2009
Subject: [possible spam] RE: [Repeater-Builder] Notch on duplexers... How low
should they go???
With a preamp, if you're only getting -106 dBm sensitivity
@yahoogroups.com
mailto:Repeater-Builder%40yahoogroups.com ] On Behalf Of Jeff DePolo
Sent: Sunday, July 12, 2009 7:51 AM
To: Repeater-Builder@yahoogroups.com
mailto:Repeater-Builder%40yahoogroups.com
Subject: RE: [Repeater-Builder] Notch on duplexers... How low should they
go???
With a preamp
-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of NORM KNAPP
Sent: Sunday, July 12, 2009 8:46 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Notch on duplexers... How low should they
go???
Ok Eric,
You just brought up something
-
From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
Sent: Sun Jul 12 11:01:30 2009
Subject: RE: [Repeater-Builder] Notch on duplexers... How low should they go???
Norm,
The tuning rods on the TX pair
: Re: [Repeater-Builder] Notch on duplexers... How low should they
go???
Ok,
It is not the rod lenght sticking up, it is the set screws and adjustment
nuts (bolts?) That are different. One side has 2 on each can and the other
side has 3 on each can.
The RG-142 jumpers are pretty short. I really
I was checking the tuning on my duplexers for the 147.225 repeater after
noticing some desense on with the service monitor. I had something like 99
watts going into the duplexers (sinclair Q-202g) and about 85 coming out. I
thought, WOW! This cannot be right. Sure enough they were aparently
In my instance here...
Factory preamp puts you around -106 dBm sensitivity which at 44 dBm tx works
out to needing about 91 dB of isolation at my 600 KHz split... You, however,
have 50 dBm so you're looking at closer to 96 dB of isolation to sit at
theorhetical zero desense. I'm sure someone on
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of NORM KNAPP
Sent: Saturday, July 11, 2009 6:46 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Notch on duplexers... How low should they go???
I was checking the tuning
-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
To: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
Sent: Sat Jul 11 21:17:55 2009
Subject: RE: [Repeater-Builder] Notch on duplexers... How low should they go???
Norm,
If the Q202-G duplexer is tuned exactly to spec
The factory preamp was never meant to be used in the repeater configuration.
It was primarily for mobiles.
I was checking the tuning on my duplexers for the 147.225 repeater after
noticing some desense on with the service monitor. I had something like 99
watts going into the duplexers
PM
Subject: RE: [Repeater-Builder] Notch on duplexers... How low should they
go???
The factory preamp was never meant to be used in the repeater configuration.
It was primarily for mobiles.
That's odd. You could order a repeater with it installed.
Joe M.
Bill Smith wrote:
The factory preamp was never meant to be used in the repeater
configuration. It was primarily for mobiles.
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