Re: [Repeater-Builder] Too fast squelch on GE Master

[Sean Fitzharris]

There is an article on the Repeater Builder web site about improving the
stock Mastr II squelch.

http://www.repeater-builder.com/ge/mastrIIsquelchmod.html

-Sean

> We are using a GE Mastr II with an RLC Club controller for our 444.600
> repeater. On weak signals the repeater chops words. I have determined
> this is due to very fast action of the CAS turning the controller audio
> off and on. Looking at the schematic, U603 has internal fast and slow
> modes. There is an adjustment, R622 that I can't find in the book. Does
> anyone know how to slow down or improve the squelch action?
>
>
>

[Repeater-Builder] Re: Too fast squelch on GE Master

[wa5luy]

-
Thanks Nate. That was exactly the info I was looking for. 

Wayne 
-- In Repeater-Builder@yahoogroups.com, "Nate Duehr" <[EMAIL PROTECTED]> wrote:
>
> On 1/23/07, wa5luy <[EMAIL PROTECTED]> wrote:
> > We are using a GE Master II with an RLC Club controller for our 
444.600
> > repeater. On weak signals the repeater chops words. I have 
determined
> > this is due to very fast action of the CAS turning the controller 
audio
> > off and on. Looking at the schematic, U603 has internal fast and 
slow
> > modes. There is an adjustment, R622 that I can't find in the 
book. Does
> > anyone know how to slow down or improve the squelch action?
> 
> How did you set the squelch?  Is it set to a known signal level?  
When
> I've seen this happen the squelch is usually set too tight on the
> Stations.
> 
> If you're talking about a converted mobile... well, read on...
> 
> This article may be a lot more useful to you than finding R622:
> http://www.repeater-builder.com/ge/mastrIIsquelchmod.html
> 
> Nate WY0X
>

Re: [Repeater-Builder] Too fast squelch on GE Master

[Nate Duehr]

On 1/23/07, Kevin Custer <[EMAIL PROTECTED]> wrote:

> > anyone know how to slow down or improve the squelch action?
>
> http://www.repeater-builder.com/ge/mastrIIsquelchmod.html
>
> After you get frustrated with trying the above   do this:
> 

Kevin,

Any good notes on how to specifically install one of these into a GE
MASTR II floating around anywhere or any data on just how much it
"helps"?

>From what we've seen here, if the squelch on the MASTR II is set right
on the station, using "AND" squelch  (logically AND'ing the CAS and
CTCSS in the controller itself) works VERY well, timing-wise, and also
keeps virtually all noise/interference out of the system.

I know that comment doesn't help those who want to run
carrier-squelch, but it really does work well on our systems here.

Nate WY0X

RE: [Repeater-Builder] Kenwood TKR750v2

[Yahoo]

Yes, the TA remains "hot" but I need flat audio. I can call Kenwood tomorrow
but was hoping to finish this tonight. It could be a firmware problem. I
can't imagine why they would purposely mute the line when QT encode is
programmed.

Jeff

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Ken Arck
Sent: Tuesday, January 23, 2007 6:17 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Kenwood TKR750v2

At 06:05 PM 1/23/2007, you wrote:

>I have a TKR-750v2 base/repeater and attempting to connect it to a
>DSP223 control panel. The problem I am having is if the base is 
>programmed with encode QT/DQT it mutes the (TD) TX data input line when 
>the (EPTT) External PTT is used. Hoping someone has run into this.

<---Are you wanting to use flat audio in and that's why you're using the TD
for audio instead of TA?

Ken

--
President and CTO - Arcom Communications Makers of the world famous RC210
Repeater Controller and accessories.
http://www.ah6le.net/arcom/index.html
Authorized Dealers for Kenwood and Telewave and we offer complete repeater
packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net


 

Re: [Repeater-Builder] Kenwood TKR750v2

[Ken Arck]

At 06:05 PM 1/23/2007, you wrote:

>I have a TKR-750v2 base/repeater and attempting to connect it to a
>DSP223 control panel. The problem I am having is if the base is
>programmed with encode QT/DQT it mutes the (TD) TX data input line
>when the (EPTT) External PTT is used. Hoping someone has run into this.

<---Are you wanting to use flat audio in and that's why you're using 
the TD for audio instead of TA?

Ken
--
President and CTO - Arcom Communications
Makers of the world famous RC210 Repeater Controller and accessories.
http://www.ah6le.net/arcom/index.html
Authorized Dealers for Kenwood and Telewave and
we offer complete repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net

[Repeater-Builder] Kenwood TKR750v2

[randidog2002]

I have a TKR-750v2 base/repeater and attempting to connect it to a 
DSP223 control panel. The problem I am having is if the base is 
programmed with encode QT/DQT it mutes the (TD) TX data input line 
when the (EPTT) External PTT is used. Hoping someone has run into this.

Thanks, Jeff

[Repeater-Builder] Kenwood TKR750v2

[randidog2002]

I have a TKR-750v2 base/repeater and attempting to connect it to a 
DSP223 control panel. The problem I am having is if the base is 
programmed with encode QT/DQT it mutes the (TD) TX data input line 
when the (EPTT) External PTT is used. Hoping someone has run into this.

Thanks, Jeff

Re: [Repeater-Builder] Too fast squelch on GE Master

[Kevin Custer]

wa5luy wrote:
> We are using a GE Master II with an RLC Club controller for our 444.600 
> repeater. On weak signals the repeater chops words. I have determined 
> this is due to very fast action of the CAS turning the controller audio 
> off and on. Looking at the schematic, U603 has internal fast and slow 
> modes. There is an adjustment, R622 that I can't find in the book. Does 
> anyone know how to slow down or improve the squelch action? 

http://www.repeater-builder.com/ge/mastrIIsquelchmod.html

After you get frustrated with trying the above   do this:


Kevin

[Repeater-Builder] Re: Too fast squelch on GE Master

[fineshot1]

--- In Repeater-Builder@yahoogroups.com, "wa5luy" <[EMAIL PROTECTED]> wrote:
>
> We are using a GE Master II with an RLC Club controller for our 444.600 
> repeater. On weak signals the repeater chops words. I have determined 
> this is due to very fast action of the CAS turning the controller audio 
> off and on. Looking at the schematic, U603 has internal fast and slow 
> modes. There is an adjustment, R622 that I can't find in the book. Does 
> anyone know how to slow down or improve the squelch action?
>

I have been using the RUS rather than CAS signal and have never had a
problem with that(never needed adjustment).dan n2aym

Re: [Repeater-Builder] Too fast squelch on GE Master

[Nate Duehr]

On 1/23/07, wa5luy <[EMAIL PROTECTED]> wrote:
> We are using a GE Master II with an RLC Club controller for our 444.600
> repeater. On weak signals the repeater chops words. I have determined
> this is due to very fast action of the CAS turning the controller audio
> off and on. Looking at the schematic, U603 has internal fast and slow
> modes. There is an adjustment, R622 that I can't find in the book. Does
> anyone know how to slow down or improve the squelch action?

How did you set the squelch?  Is it set to a known signal level?  When
I've seen this happen the squelch is usually set too tight on the
Stations.

If you're talking about a converted mobile... well, read on...

This article may be a lot more useful to you than finding R622:
http://www.repeater-builder.com/ge/mastrIIsquelchmod.html

Nate WY0X

[Repeater-Builder] FS: Motorola Micor VHF highband repeater

[Erik Finskas]

Hi

I acquired a Motorola Micor VHF repeater, currently on 167/172MHz.

It should be a 50W radio with carrier squelch and a line interface.
I don't have any use for this, and I'm willing to splice this down to 
some reasonable level. So if you're interrested in some parts, please 
contact me directly via PM or email.

Have a look:

http://gallery.lakki.iki.fi/Micor_VHF

Note that this thing is in Finland, so shipping to US can be expensive 
if you are in a horry.

I can ship the whole thing if someone wants it.

..
Erik OH2LAK
[EMAIL PROTECTED]

[Repeater-Builder] Too fast squelch on GE Master

[wa5luy]

We are using a GE Master II with an RLC Club controller for our 444.600 
repeater. On weak signals the repeater chops words. I have determined 
this is due to very fast action of the CAS turning the controller audio 
off and on. Looking at the schematic, U603 has internal fast and slow 
modes. There is an adjustment, R622 that I can't find in the book. Does 
anyone know how to slow down or improve the squelch action? 

RE: [Repeater-Builder] R56

[Eric Lemmon]

The R56 Manual is an excellent guide to planning and installing a two-way
radio site, although its primary purpose is for planning cellular and PCS
sites.  The sections on permitting and getting along with neighbors is very
useful.  The table of contents can be viewed here:



One area that I object to is the section on electrical system grounding, and
I have filed a formal complaint with the authors to have it changed to
comply with the National Electrical Code, NFPA 70.  The R56 Manual proposes
that the equipment grounding conductor be run to a "single-point ground"
plate over a different path than that followed by the hot and neutral
conductors.  Unfortunately, that practice clearly violates Article 250 of
the NEC that requires the equipment grounding conductor (the green or bare
wire) to run in the same raceway or cable that contains the hot and neutral
wires.

As an electrical inspector and a designer of radio systems, I can see many
different views of the "proper" way to ground sensitive electronic
equipment.  I also see some really creative but dangerous methods of
floating the ground on equipment, supposedly to prevent noise.  More often
than not, these methods increase noise and make the equipment much more
vulnerable to damage from lightning strikes.  The bottom line is that the
insurance carrier may not cover any losses if an investigation reveals that
the electrical grounding system was not in full compliance with the NEC.

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of radiomog
Sent: Tuesday, January 23, 2007 12:06 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] R56

Just wondering how many of you know about R56 and actually try to 
follow it as a guide?

we've had a run-in with a motorola ss owner who wasn't too 
knowledgeable. Well, maybe he is, but the work he does doesn't even 
come close to good business practices.

[Repeater-Builder] PL BOARD

[Don]

Just wanted to say a Big Thanks to everyone for all the Great info I
got here and Direct E-Mail about installing a ComSpec PL Board on the
old Cobra/Midland/Clegg 220 Mobile

Thanks Don KA9QJG 

[Repeater-Builder] DB 4032 Table of Coaxes Lenghts

[Luc Pernot]

Resending this, there must be a chart or table that exist... somewhere.

Hi,anybody has the calculated length of  coaxes (Table) needed for going
from the T jonctions to the helical Resonnator of a DB-4032

6 resonnator Unit...for high and low notch displacement  for 1 mhz
separation ... Original has 500khz  ... Thank's Luc VE3JGL.

 

[Repeater-Builder] R56

[radiomog]

Just wondering how many of you know about R56 and actually try to 
follow it as a guide?

we've had a run-in with a motorola ss owner who wasn't to 
knowledgeable.  Well, maybe he is, but the work he does doesn't even 
come close to good business practices.

[Repeater-Builder] Re: coordination question for the seasoned owners

[Al Wolfe]

Re: coordination question for the seasoned owners
Posted by: "Coy Hilton" [EMAIL PROTECTED] ac0y8
Date: Tue Jan 23, 2007 2:57 am ((PST))

Contrary to some beliefs, putting CTCSS on a repeater DOES NOT MAKE
IT "A CLOSED" mschine!


Group,
As Coy said, CTCSS does not make a repeater closed! In fact ALL 
repeaters in Illinois must pretty much use other than carrier squelch to be 
coordinated or retain their coordination.

Actually, it's up to each repeater system operator here to use carrier, 
CTCSS, DTMF, Captain Crunch, or whatever access, but in cases of 
interference, preference will be given to the system not using carrier 
squelch.

73,
Al, K9SI 

Re: [Repeater-Builder] LMR-1200

[Dan Blasberg]

Steve,

Thanks, I probably should have been a little more specific. Our county 
OEM will be donating (giving) it to us once they get their 15' 
replacement piece, so that they do not 100" laying on the roof of their 
building.

Dan
KA8YPY


On Jan 23, 2007, at 1:45 PM, Steven Samuel Bosshard ((NU5D)) wrote:

> As for using this line I would have no qualms whatsoever.  As for 
> buying
> this new, I think other corrugated lines may offer a better cost / loss
> return.  Of course prices may be more favorable now, but several years 
> ago,
> solid corrugation type cable at 7/8" diamater had an advantage.
>
> Steve NU5D
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>

Re: [Repeater-Builder] LMR-1200

[Phil]

we deal mostly with LMR400/600 and LDF.   The numbers look good for LMR1200 up 
into 70cm.  If the price is right, why not? 
   
  Reminds me of the free roll of 1/2" heliax (new) at one of the previous 
places of employment (yes it was free, not "free" because I made it that way) :)

Dan Blasberg <[EMAIL PROTECTED]> wrote:
  Anybody have any opinions on LMR-1200 as feedline?

I have access to about 100' with N connectors at both ends, that I am 
thinking of using for feedline.

Thanks,

Dan
KA8YPY



 

 
-
The fish are biting.
 Get more visitors on your site using Yahoo! Search Marketing.

Re: [Repeater-Builder] LMR-1200

[Steven Samuel Bosshard \(NU5D\)]

As for using this line I would have no qualms whatsoever.  As for buying
this new, I think other corrugated lines may offer a better cost / loss
return.  Of course prices may be more favorable now, but several years ago,
solid corrugation type cable at 7/8" diamater had an advantage.

Steve NU5D

[Repeater-Builder] Anyone have a UHF Circulator/Isolator for Sale?

[Paul Metzger]

I'm looking for a UHF circulator/isolator for 440-450.

Please e-mail me at [EMAIL PROTECTED]

Thanks !

Paul Metzger
KQ6EH

[Repeater-Builder] LMR-1200

[Dan Blasberg]

Anybody have any opinions on LMR-1200 as feedline?

I have access to about 100' with N connectors at both ends, that I am 
thinking of using for feedline.

Thanks,

Dan
KA8YPY

Re: [Repeater-Builder] Micor Repeater Parts needed

[Scott Zimmerman]

The only portions of what you have that WILL NOT move to 2M easily are the 
receiver and the PA. The exciter that you have is a 150.8-174Mhz one. Most of 
them will tune to 2M without any changes. If changes are needed, it's only to 
make the last two slugs tune correctly. (Change 2 caps)

The receiver's local oscillator chain will work OK on 2M (it's identical in 
component values.) You *will* need to change the helical resonators and the 
mixer coil, to work on 2M.

The PA you have is useless on 2M. you need to find a 150.8-162 Mhz PA and 
transplant it. The PA's in the mobiles are VERY similar and can be transplanted 
easily. Keep the high split PA though, it will work good for spare transistors.

Although often not a necessity, you should drill and adjust the Exciter 
band-pass filter for the least amount of loss.

Converting your station is your best bet. Trying to find genuine 2M parts is 
VERY difficult if not impossible. That is why there is a great amount of 
conversion information on the repeater-builder site dealing with moving from 
one band to another.

If you need help or need someone to do the conversions for you, Please feel 
free to contact us:

http://www.repeater-builder.com/custombuilt/index.html
http://www.repeater-builder.com/rbtip/customrepair.html

Scott

Scott Zimmerman
Amateur Radio Call N3XCC
612 Barnett Rd
Boswell, PA 15531

  - Original Message - 
  From: k4ldi_756 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Tuesday, January 23, 2007 1:08 AM
  Subject: [Repeater-Builder] Micor Repeater Parts needed


  Our club needs MICOR components for the 138-158 VHF range.
  We currently have a DVP unified chassis and have modified it to work as 
  a repeater using the associated SCM card. It works fine with the 
  commercial crystals, exciter and receiver it came with but it is in the 
  Highest portion of the VHF band.

  We need to be able to tune down to 145.170 transmit, 144.570 receive.
  So we need the exciter, receiver and the PA for that range. We have 
  the cabinet, power supply and the other cards we need.

  As far as we can determine, we need the DVP receiver board TLD8272B, 
  exciter TLD5802A and the 138-150 MHz PA.

  In lieu of that, we would be interested in a unified chassis and PA for 
  the 138 - 150 VHF range or the next VHF frequency range up (150-175) in 
  hopes we can retune it to work for us.

  Any info or advice would be helpful and appreciated.
  Thanks
  K4LDI Yahoo email [EMAIL PROTECTED]



   


--


  No virus found in this incoming message.
  Checked by AVG Free Edition.
  Version: 7.5.432 / Virus Database: 268.17.8/648 - Release Date: 1/23/2007 
11:04 AM

RE: [Repeater-Builder] Isolator

[Jeff DePolo]

Sorry, that last message was supposed to be direct...

[Repeater-Builder] Isolator

[Jeff DePolo]

 
Ed,
 
I have a new Telewave single-stage high-power (300 watt I believe) isolator.
What frequency do you need?  I can put it on the network analyzer to make
sure it meets spec at your frequency.  I'd sell it for half of whatever
Telewave list price is, and again, it's brand new, still in the original
box.
 
I have a couple of VHF duplexers, but they're overkill for a 2.3 MHz split.
Both are 6-cavity Decibel Products; one is bandpass-only the other
pass/reject.  You can probably find something a lot cheaper than what I'd
need to get out of either of these.
 
--- Jeff
 


  _  

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Com/Rad Inc
Sent: Monday, January 22, 2007 6:15 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re:VHF Duplexer Needed


22 Jan 2007
 
Hello Group
 
We are looking for a VHF Duplexer and isolator ( if available ) to do 
150 W and a split of 2.3 Mhz
 
Advise on condition, price and delivery time
 
Thanks
 
Ed Folta
Com/Rad Inc.
Des Plaines, IL
 


--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.410 / Virus Database: 268.17.4/644 - Release Date: 1/22/2007

[Repeater-Builder] Re: ACC-850 Controller V 3.6 FIRMWARE GONE!

[MR. B]

Just a short note - the ACC - 850 are
spoken for and on their way to TEXAS.

Thanks to all,

Ron

[Repeater-Builder] Micor Repeater Parts needed

[k4ldi_756]

Our club needs MICOR components for the 138-158 VHF range.
We currently have a DVP unified chassis and have modified it to work as 
a repeater using the associated SCM card.  It works fine with the 
commercial crystals, exciter and receiver it came with but it is in the 
Highest portion of the VHF band.

We need to be able to tune down to 145.170 transmit, 144.570 receive.
So we need the exciter, receiver and the PA for that range.  We have 
the cabinet, power supply and the other cards we need.

As far as we can determine, we need the DVP receiver board TLD8272B, 
exciter TLD5802A and the 138-150 MHz PA.

In lieu of that, we would be interested in a unified chassis and PA for 
the 138 - 150 VHF range or the next VHF frequency range up (150-175) in 
hopes we can retune it to work for us.

Any info or advice would be helpful and appreciated.
Thanks
K4LDI Yahoo email [EMAIL PROTECTED]

RE: [Repeater-Builder] IFR 1500 Power Supply

[Fred Flowers]

That would be Bowling Green Road.

 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Robin Midgett
Sent: Monday, January 22, 2007 9:01 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] IFR 1500 Power Supply

 

If "fix it yourself" proves less than fruitful, I can recommend Ken Knowels
of Auburn Electronic Labs 
Work:   270-542-6000
Fax:502-542-7706
Address:
12345 Bowling Rd  (Highway 68/80
Auburn, KY   42206

I have the service manual; would be willing to help over the phone if you
want to try.




At 02:49 PM 1/22/2007, you wrote:



Does anybody have a spare power supply that they may want to part with. I
have a unit that needs the power supply replaced.
 
Mike  K7PFJ

Thanks,
Robin Midgett K4IDC
VHF+ Glutton EM66se  

[Repeater-Builder] Re: Backing down power on Micor

[Ron Wright, Skywarn Coodinator]

Chris,

Normally, and I say normally for Mot made a number of unified chassis 
versions, the Power Control module is in the upper right next to the 
exceiter board.

If you have the external seperate PA a small wire from the side of the 
chassis goes to the PA for the control voltage.

If the PA is mounted in the unified chassis next to the exciter the 
control module is behind the PA.

The power is controlled with a pot on this module.

Some modules had 2 controls, one for setting the limit for SWR shut 
down among other reasons and one for power.

73, ron, n9ee/r



--- In Repeater-Builder@yahoogroups.com, "cpitre_01" <[EMAIL PROTECTED]> 
wrote:
>
> I have a Micor repeater that is now up and running.  The transmitter 
is 
> now running 50 watts.  I need to back it down to 30 watts, how is 
this 
> done?  I do not have a manual for the unified chassis model.  Please 
> any help would be appreciated.
> 
> Chris
> VE3CTP
>

[Repeater-Builder] Re: Adding Remote Base to a Repeater

[Ron Wright, Skywarn Coodinator]

Dwayne,

Gary is correct.  To really comment with good solutions one needs to 
know:

Repeater frequencies (as you've given) 

Remote base frequencies (suspect linking will be upside down from a 
repeater pair so will be txing near repeater input).

What antenna seperation can you work with.  Seems you need height to 
make the remote base work so does this mean the repeater and remote 
base antennas have to be close together???

One problem with cavities and notch filters are the seperation of 
frequencies for with a notch there also has to be a pass.  Cavities 
are used a lot and do work if the frequencies allow it.

73, ron, n9ee/r



--- In Repeater-Builder@yahoogroups.com, "k4fmx" <[EMAIL PROTECTED]> 
wrote:
>
> --- In Repeater-Builder@yahoogroups.com, "skipp025"  
> wrote:
> >
> > > "ldgelectronics"  wrote:
> > > Yes, the tower spacing is vertical (not horizontal), yes the 
> > > tx/rx on the repeater is 443.3 and 448.3 (5 MHz split)
> > 
> > Don't get sideways over the vert/horz terms. We would be 
concerned 
> > with both the vertical and horizontal locations.  Vertical 
distance 
> > is an easy "best bang for the buck" option.  But horizontal 
> distance 
> > and location per side of a tower is also quite handy.  
> > 
> > > Ok, now to fill in some of the blanks I left out. This is why 
the 
> > > group is so cool… things I thought were meaningless turned out 
to 
> be 
> > > important. The repeater power is 20 watts, the remote base is 
10 
> > > watts.
> > 
> > Relative to the grand scheme of things... your power output is 
not 
> > that big of a problem to work with. 
> > 
> > > The repeater is an Exec II. The remote base is a Kenwood TK-805 
> > > (just because I have a stack of them). The broadness of the 
> > > TK-805 is part of the problem and this could all go away by 
> > > switching to another Exec II for the remote base.
> > 
> > I've seen a lot of tk-805d radios used as links... and they are 
> > very popular animals. It would be worth your while to include 
some 
> > band pass selection (cavities typical) in series with the radio.
> > 
> > > For the splits, we have both (high TX and low TX) here in 
> Maryland. 
> > > The overall plan is to connect the new repeater with the remote 
> base 
> > > to an existing hub repeater on 449.225 TX and 444.225 RX. 
> > 
> > Clint Eastwood called it a "cluster $%^&" in one of his movies. 
> > 
> > Keep in mind the closest frequency spacing from any transmitter 
> > to any receiver is your largest gorilla in the room. 
> > 
> > > Skipp, I like the additional notch in the repeater duplexer 
> trick. 
> > > That alone may do it. 
> > 
> > I do a lot of close spaced in-band commercial radio repeating and 
> > the notch in the reciver antenna path "is da dope" to take out 
the 
> > unwanted visitor.   If this is a fixed frequency remote used only 
> > for repeater linking... then you should also include a notch or 
> > "suck out" cavity on the remote radio, tuned to the repeater 
> > transmitter frequency.   We would "assume" the remote radio to 
> > be operated half duplex? 
> > 
> > > I did the T-to-T thing with 2 and 4 band pass cans. The loss 
> > > was in the 5-6 db range with 2 cans on each side. Not 
> > > really worth it. If it were 2db per side, I would live with it.
> > 
> > Something is wrong with your setup... you should be able to do  
> > better than the 5-6 dB loss value.  Since your power levels are 
> > relatively modest (vs what they could be) you could actually 
> > replace the band-pass cavities dual port-hole with simple suck 
> > out notch cavities on the unwanted frequencies as long as 
> > things don't get too crazy with choices of frequencies, power 
> > level and a few other considerations.  
> > 
> > > Thanks again for all of the input. Sometimes just talking it 
> through 
> > > helps a bunch.
> > > Dwayne Kincaid
> > > WD8OYG
> > 
> > Just think of the gas money you'll save by not having to drive to 
> > the repeater site to disable a locked up link/remote base system. 
> > 
> > cheers, 
> > skipp
> >
> 
> Dwayne,
> I am not sure what the actual setup is that you are trying to co-
> locate on the same tower. Maybe you could re list the frequencies?
> 
> Here are a few facts about isolation that may help:
> Vertical separation of antennas on 450 Mhz of 10 feet gives almost 
50 
> db of isolation.
> 20 feet vertical separation gives around 60 db of isolation. The 
> spacing is figured from center to center of each antenna.
> 
> Horizontal separation of 10 feet on 450 Mhz gives about 30 db of 
> isolation.
> Horizontal separation of 100 feet on 450 Mhz gives about 50 db of 
> isolation.
> 
> It is much easier to get more isolation with a notch cavity than it 
> is with a pass cavity.
> 
> Combining with  cavities will usually require an isolator on each 
> transmitter in addition to the cavities.
> 
> A pass cavity or a low pass filter is always required after an 
> isolator to reduce 2nd harmonics generated by the isolator.
> 

[Repeater-Builder] Re: PL BOARD

[Ron Wright, Skywarn Coodinator]

Don,

I have a data sheet on the TS32 and can give info on installing it, but 
no particulars on the 13-509.  Let me know your direct e-mail and I can 
send.

Just a few basic notes you need for install:
TS32 audio input, connect to discreminator audio...do not use speaker 
audio for it often does not have the low freq response for the tone.

Out 1 and 2 are the logic outputs for decode...out 1 low for decode, 
out 2 high. 

Must have HANGUP grounded or will stay in decode continously.

For encode connect to 13-509 encode input.  Often the mike input does 
not have low freq response for tone, not always.  Most FM rigs have a 
special input for the tone.  Of course I am thinking this type of info 
on the 509 is what you are looking for.

73, ron, n9ee/r


--- In Repeater-Builder@yahoogroups.com, "Don" <[EMAIL PROTECTED]> wrote:
>
> I am trying to Donate to a New Blind Ham, a old Cobra 200 Which is the
> same as the Midland 13-509 220 Mobile, The problem is I don't have the
> Schematic and I would like to put a Communications Specialist TS-32 Pl
> Board so he can get into My 220 repeater, I know it is a old radio but
> I am sure someone might have the info I need to install it. Please 
> tell Me in Layman terms. 
> 
> Thanks Don KA9QJG
>

[Repeater-Builder] Re: coordination question for the seasoned owners

[Ron Wright, Skywarn Coodinator]

Coy,

Repeater coordination is important.  However, the ones often doing it 
don't know much...they like the title, but not the work and many do 
not even own or operate a repeater.

Here in Florida we do have a good coordinating council, but they 
often get into the mode of making rules that apply to all.  My only 
real problem is they make decissions among them selves without 
allowing the repeater owners/trustees vote.

I would respond to your council you have and state you have notified 
them on atleast 3 occations the repeater is on the air and that you 
are willing to demostrate it to them...while they are on the phone 
bring it up and if possible make a contact.  If they continue to take 
action to de-coordinate I would threaten with legal action.  I am 
sick of all the suing going on in our country, but sometimes it is 
required.  They coordinated you so they have to live with it.  If 
this had been an issue it should have been addressed initially.

Most often a good council only wants say your CTCSS tone so another 
repeater on the same pair does not use it.  Here in Florida the 
council has posted standard tones for each region and most follow 
it.  The only real problem one region was given 100 Hz, kinda the 
standard for CTCSSng a repeater without closing it...of course these 
days if you want to close a repeater don't use CTCSS, use non-
standard methode or DCS, but most rigs now come with DCS, but dought 
if most Hams know of it and how to program it in their rigs, hi.

73, ron, n9ee/r



> 
> Coy Hilton wrote:
> > 
> > HI Gang
> >  I have had one of my 2 meter repeaters coordinated as a closed
> > repeater for at least two years. Three times last year I was sent 
a
> > email asking if the repeater was on the air and three times I
> > answered "yes" each time.  I had even had a on going discussion 
about
> > having multiple transmitters on the same pair coordinated. I was 
never
> > asked to prove the repeater existed or even to "prove it" in any 
other
> > way. They are trying to de-coordinate me on this pair using this
> > reason. when it has been coordinated as a CLOSED machine for 2 
years.
> > 
> > My question to you is have any of you guys have ever heard of 
having a
> > repeater coordination recinded because of this. I know that the 
FCC
> > rules say that Closed repeaters are allowed and the coordinators 
will
> > allow coordinating a repeater as closed. I'm looking for further
> > replies or suggestions as how to handle this.
> > 
> > The local director and vice-director are actually the ones behind 
this.
> > 
> > 
> > 
> > 
> > Yahoo! Groups Links
> > 
> > 
> >
>

[Repeater-Builder] Re: coordination question for the seasoned owners

[Ron Wright, Skywarn Coodinator]

hi all,

With about all rigs manufactured in last 10 years or more CTCSS 
encode is standard and finding the tone of the repeater is easy.  If 
the repeater transmits the tone some rigs find it for you.

However, this is only if you know a repeater exist on a frequency.

Here in Florida I have a high repeater that is NOT toned.  With the 
influx of new Hams and ones on vacation about every week someone 
comes on my machine and comments it is the only one they can make.  
The reason is the other repeaters are toned and due to the typical 
Ham Radio not keeping things up to date they cannot get into the 
toned repeaters because the tone has been changed.

Tone has definite advantages and is being required by repeater 
cancels more.  However, the advantages do not alway apply.  Hearing 
DX is not a problem with me for I have always thought DX was part of 
Ham Radio.  Noise is becoming more common these days so tone would 
help this.

Putting tone on a repeater does not bring it into the 21st century.  
It brings it to about 1950s technology, but can be good for many.

73, ron, n9ee/r



--- In Repeater-Builder@yahoogroups.com, "Coy Hilton" <[EMAIL PROTECTED]> 
wrote:
>
> Contrary to some beliefs, putting CTCSS on a repeater DOES NOT MAKE 
> IT "A CLOSED" mschine!
> 
> 
> --- In Repeater-Builder@yahoogroups.com, "Jim B."  wrote:
> >
> > W5KGT wrote:
> > > And make sure that the coordinator has the correct PL
> > > tone in his data base.
> > 
> > The only problem with that is they have a tendency to publish it. 
> Then 
> > suddenly the repeater isn't closed anymore. It's happened here. 
> Access 
> > codes/tones were published in the ARRL directory when they were 
> told NOT to.
> > -- 
> > Jim Barbour
> > WD8CHL
> >
>

[Repeater-Builder] Re: coordination question for the seasoned owners

[Coy Hilton]

Contrary to some beliefs, putting CTCSS on a repeater DOES NOT MAKE 
IT "A CLOSED" mschine!


--- In Repeater-Builder@yahoogroups.com, "Jim B." <[EMAIL PROTECTED]> wrote:
>
> W5KGT wrote:
> > And make sure that the coordinator has the correct PL
> > tone in his data base.
> 
> The only problem with that is they have a tendency to publish it. 
Then 
> suddenly the repeater isn't closed anymore. It's happened here. 
Access 
> codes/tones were published in the ARRL directory when they were 
told NOT to.
> -- 
> Jim Barbour
> WD8CHL
>