On Aug 9, 2009, at 9:07 PM, skipp025 wrote:
re: An advocate for a little audio compression.
Yeah, I know a decent number of you are in-stone
same-in to same-out repeater audio levels types.
However, I've changed my opinion.
You're a brave man to say it, Skipp.
Here's my problem with it.
Did you put a pull-up resistor on the collector of the transistor?
Chuck
WB2EDV
- Original Message -
From: Nick w7...@sbcglobal.net
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 10, 2009 1:32 AM
Subject: [Repeater-Builder] Micor cos question
I have a micor Station , I
CDE Capacitors: http://www.cde.com/
All major distributors (Mouser, DigiKey, Allied, Newark, Future, Arrow) carry
these USA made products --
BUT no specific distributor based in Hawaii.
Need mounting hardware for the new capacitor styles?
http://www.cde.com/catalogs/hardware.pdf
Join CDE's
If you want Laird / Antenex does make a 2 and 4 dipole array for the 2 meter
band the part number is YDA1362 for a 2 dipole 136-150 antenna and YDA1364 for
the 4 dipole antenna. They don't come with a mast pipe like the cushcraft
antennas from long ago. They have a YDA2004 for 200-225 MHZ
and
On this same topic of the mast-less Antennex/Laird dipole arrays, has anyone
attempted to top mount these from a fiberglass mast to minimize interaction
with the normal steel pole? I have quite a few surplus fiberglass poles left
that would likely work, even for side mounting on 1/2 wave spacing
Trying to get a UHF SM50 M44DCG20A2AAA down to 440.
Already tried the shift method without success. Searched Google high and low
with little success. There was a few threads on the boards about moving this
down. Dropped and few emails with out a return.
I've read on Batlabs on moving the SM50
Was just curious as to if folks have
gotten Notch cavities to work ok with a 600khz
split. Have 4 in Rx leg 4 in TX leg. According
to the analyzer, each bank has a 90dB notch.
Double shielded cable throughout (RG-9).
Just about pulled all my hair out over the last
couple of weeks, and still
I used the batlabs article:
http://www.batlabs.com/sm50.html
and modified my codeplug file to make mine go down to 438 It works
pretty good down to 440, but it starts dropping off pretty quickly
below that.
On Aug 10, 2009, at 5:47 AM, tonyn2mft wrote:
Trying to get a UHF SM50
I did only the one mod which was .
9.6v to a 10k resistor to the base, emitter went to ground, collector to the
controller. This mod was on the better duplexing for a micor station on
repeater builder site.
Nick
w7nik
775-626-7605
Web site-- http://geocities.com/w7...@sbcglobal.net/
When
Can you tell us more about the model of your duplexer?
When you say notch is it:
A. Flat pack mobile style notch only duplexer with a 3MHz minimum split.
B. Wacom BpBr cavites such as WP-639.
C. Motorola style notch only small cans.
Also if you have a VHF circulator you can replace the tee
If you mount the array on a non-conductive pole, won't you then have to model
the effects of interaction with the outside of the coax shields of the feedline
harness that would normally be insignificant when attached to the side of a
conductive pole?
- Original Message -
From: AJ
I might have to add 12 volts into a 10k to the collector. Thanks to a friend in
our club , he suggested to use the NHRC cas inverter . I did not want to that
with out direction. I don't smoke anymore ::))
Nick
w7nik
775-626-7605
Web site-- http://geocities.com/w7...@sbcglobal.net/
When all
Nick W7NIK wrote:
I did only the one mod which was .
9.6v to a 10k resistor to the base, emitter went to ground, collector
to the controller. This mod was on the better duplexing for a micor
station on repeater builder site.
That part of the modification is not intended to drive a
Paul Plack wrote:
If you mount the array on a non-conductive pole, won't you then have
to model the effects of interaction with the outside of the coax
shields of the feedline harness that would normally be insignificant
when attached to the side of a conductive pole?
Be careful here
Thanks Kevin , That mobile note threw me off . I did see that mod. I will give
that a try thanks again. Your mods are very helpful.
Nick
w7nik
775-626-7605
Web site-- http://geocities.com/w7...@sbcglobal.net/
When all else fails . Amateur Radio.
Hi Dcflu7x,
It's a DB products SP-1894. Can't get any info on it from
anywhere.
Each of the 8 cans have the approx dimensions of 5 x 21.
A single screw-type shaft in the center, and one SO-239
sticking out of the top of the can. No variable caps, or
anything else on the cans. Each can has an
Ok, if they are the type with the variable coupling loop you should
have 2 coupling loop holes per cavity, just one has a round hole
cover. If so take 2 cavities and transplant a coupling loop to one of
them to make 1 band pass cavity. Make another one for the RX side
Place the band pass cavities
Hmm, that would make sense... Back to the drawing board :)
On Mon, Aug 10, 2009 at 11:15 AM, Kevin Custer kug...@kuggie.com wrote:
Paul Plack wrote:
If you mount the array on a non-conductive pole, won't you then have to
model the effects of interaction with the outside of the coax shields
--- 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.
Hi Ralph,
No, they were 10 as came from the factory for 166 mhz,
so it didn't look like they were cut for anything
in particular.
DCflux - I started to do what you suggested... sounded
like something else to try. Took the link out of the
last can the loop wasn't soldered to the PL259
I've actually seen that before on a Wacom. Go with silver bearing
solder if you have it.
On Mon, Aug 10, 2009 at 11:19 AM, tahrens301tahr...@swtexas.net wrote:
Hi Ralph,
No, they were 10 as came from the factory for 166 mhz,
so it didn't look like they were cut for anything
in particular.
Yes they will play nice down there. I have had t many to count as links
Full-Duplex and they will play nice to the 430Mhz without any modification
other than the hacked software.
Mike Mullarkey
- Original Message -
From: tonyn2mft tonyn2...@gmail.com
To:
Hi guys just to finish off .the fault was the 2 amps in the input atten
After these were replaced all tested ok .
Thank You,
Ian Wells,
Kerinvale Comaudio,
361 Camboon Road.Biloela.4715
Phone 0749922574 or 0409159932
www.kerinvalecomaudio.com.au
---Original Message---
From:
Hi guys .thanks for the replys .The fault was I had too much length between
the radio and the ctcss decoder card .I have altered most of my repeaters to
allow the maxons to decode the signal by itself and then it controls the
transmitter by the maxon approved design with a bs170 fet .I have now
That's what I did first but they do at least pretend they have no info left on
this older model duplexer. But the typical Sinclair instruction leaflet (some
are available for other models on repeater-builder and on Sinclair's website)
doesn't reveal such info anyway.
Duplexer manufacturers in
Nate, your comments about compression and bad-sounding audio coming in from
IRLP just goes to show, at least in part, that improperly set-up
compression/AGC sounds bad.
For several years, I ran an Alesis 3630 on the audio coming in from IRLP and
feeding our local repeater transmitter. I
Google Bob Morton .. he is an x Sinclair man .. he knows his stuff ..
he might have the info on paper ,,. if not it might still be in his
head .. as a lot of duplexers where his designs
Rick
On Mon, Aug 10, 2009 at 5:46 PM, cruizzer77atlant...@gmx.ch wrote:
That's what I did first but they
is a desktrac repeater capable of audio compression?
- Original Message -
From: Laryn Lohman lar...@hotmail.com
To: Repeater-Builder@yahoogroups.com
Sent: Monday, August 10, 2009 6:41 PM
Subject: [Repeater-Builder] Re: An advocate for a little audio compression
Nate, your comments
At 8/10/2009 09:07, you wrote:
Was just curious as to if folks have
gotten Notch cavities to work ok with a 600khz
split. Have 4 in Rx leg 4 in TX leg. According
to the analyzer, each bank has a 90dB notch.
The big question is, what is the loss 600 kHz away from the notch?
There are some
At 8/10/2009 10:21, you wrote:
Hi Dcflu7x,
It's a DB products SP-1894. Can't get any info on it from
anywhere.
Each of the 8 cans have the approx dimensions of 5 x 21.
A single screw-type shaft in the center, and one SO-239
sticking out of the top of the can. No variable caps, or
anything else
I talked to the guy that obtained the duplxers for our club and he confirmed my
belief. Those 4 cans began life as 4 separate BpBr filters used on some
offshore communications, possibly mobile telephone or phone patch. He was not
certain. Anyway the high pass side worked great out of the box so
It's funny- on the most-used local 2m repeater, we don't have a problem with
the majority of users, whose voice levels are fine. I think compression is
necessary to cut back on a few users who 1) practically shout into the mike,
or 2) have bumped up the deviation on their radios because they
Norm,
I'm glad that you're getting that duplexer working. But, I am curious about
those parallel capacitors. None of the factory-tuned Sinclair Q-202G
duplexers I've seen had any capacitor in parallel with the Johanson tuning
capacitors- even those made for the 2m band. The loop assemblies for
Hi Bob,
I was pretty curious about it as well, especially in
the 'early days' of this project. Nobody seemed to
know much about the stubs.
If you are looking at the spec. analyzer trk gen,
you see the notch. The left side goes down deep,
then comes up on the right side of the notch. But,
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