[Repeater-Builder] Re: LMR Crimping Tools

[sgreact47]

Looks like a good quality crimper set, and at a good price.

"Adam C. Feuer" ...> wrote:
>
> Looks just like what I was looking for but I don't know of anyone 
> else needing one.  If I don't receive any other replies of something 
> better / different, I'll probably order one.
> 
> Thanks!
> 
> Adam N2ACF
> 
> 

[Repeater-Builder] Re: Wits End -- Desense

[Richard Copithorne]

you need to make up a probe insturment, spectum analizer/rf volt meter/ any 
thing that will read signal strenth and probe all about the area.  you will 
find it!
 
dickc  kr1g


  

RE: [Repeater-Builder] Re: Wits End -- Desense

[John Transue]

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-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Richard
Copithorne
Sent: Monday, September 01, 2008 7:47 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Wits End -- Desense

 


you need to make up a probe insturment, spectum analizer/rf volt meter/
any thing that will read signal strenth and probe all about the area.
you will find it!

 

dickc  kr1g

 

 

__ NOD32 3192 (20080616) Information __

This message was checked by NOD32 antivirus system.
http://www.eset.com

RE: [Repeater-Builder] Wits End -- Desense

[KD4PBC]

John, 

 

You may try and program the repeater to another frequency and see if the
problem still there. 

Some radios will interact with the IF either transmitter  or receiver. 

This may be a long shot but if you are truly at your wits end then give it a
look. 

 

In scanners they would call these  birdies . 

Since it involves the transmitter I would in the transmit IF chain 1st. 

 

Good luck, 

Robert / KD4PBC

 

 

 

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John Transue
Sent: Sunday, August 31, 2008 4:56 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense

 

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 says AWM Style 1354, but
there are many cables that are said to be UL AWM Style 1354. Some of these
are 75 ohm, some are 50 ohm. This cable is only six inches long. I plan to
replace this as soon as I can get RG400 or other suitable cable. BNC
connectors are used on both the RX unit and the TX unit. 

   I don't know what it means to have a feed through capacitor in series
with a control or audio or power cable. However, a capacitor to ground might
be good to get rid of stray RF.

   Pray if you are so inclined. Otherwise, hope we can make the physics
work. 

Thanks again,

JohnT

 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Sunday, August 31, 2008 3:06 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Wits End -- Desense

 

I was wondering the same thing. Has someone added some wiring and
subsequently breached the integrity of the shielding effectiveness
somewhere? First thing to come to mind is controller interfacing and CTCSS
wiring.

 

Chuck

WB2EDV

 

- Original Message - 

From: John J. Riddell   

To: Repeater-Builder@yahoogroups.com 

Sent: Sunday, August 31, 2008 2:43 PM

Subject: Re: [Repeater-Builder] Wits End -- Desense

 

John,  Make sure that every wire going in to the RX and TX box has a feed
thru cap in series

with it.

 

Also you might put a few small ferrite beads on each wire as well.

 

John VE3AMZ

 

 

[Repeater-Builder] Re: MSF5000 Tone Issue, PL 131.8 opens cor, non 131.8 keys repeater but no audio

[n9lv]

That is what I thought was wrong first of all, tried it both ways and 
no change either way.  I thought for sure when I wired up the 
controller that it was fine, but not sure when the other repeater 
came into the picture.  I am going to check the switches today and 
see if there is anything there.

Mathew

--- In Repeater-Builder@yahoogroups.com, Jim Brown <[EMAIL PROTECTED]> wrote:
>
> Check to see if Zone 2 Function 5 is turned on.  If on, it could 
let a COR signal get to your repeater without having the correct 
CTCSS frequency decoded.
> 
> 73 - Jim  W5ZIT
> 
> --- On Sun, 8/31/08, n9lv <[EMAIL PROTECTED]> wrote:
> From: n9lv <[EMAIL PROTECTED]>
> Subject: [Repeater-Builder] MSF5000 Tone Issue, PL 131.8 opens cor, 
non 131.8 keys repeater but no audio
> To: Repeater-Builder@yahoogroups.com
> Date: Sunday, August 31, 2008, 10:44 AM
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> I have the analog MSF5000 repeater that has the 
Cat300DX repeater 
> 
> controller installed.  Not sure if this has been this way all 
along, 
> 
> but I noticed there is another repeater somewhere close that has a 
> 
> different PL.  When they are using there repeater, it will cerchunk 
my 
> 
> 442.000 repeater.  My PL is 131.8, and that will open the squelch 
and 
> 
> allow audio out the repeater.  Any other PL will not open the 
repeater, 
> 
> but will consistanly cerchunk the repeater and causes the courtesy 
tone 
> 
> to trip as well as the rest and wait id timers.  Any ideas.
> 
> 
> 
> Mathew
> 
> 
> 
> 
>   
> 
> 
> _.
>

RE: [Repeater-Builder] Re: MSF5000 Tone Issue, PL 131.8 opens cor, non 131.8 keys repeater but no audio

[n9wys]

Mathew,

Try programming it for "tone only" control (I believe that is option "S" in
both Repeater Control and Receiver Control. Mode Information screen) - this
way even if the station hears a carrier, it won’t "react" to it.

I'm planning on doing that with my station - right now it's set for "SC"

Mark - N9WYS

-Original Message-
From: Repeater-Builder@yahoogroups.com On Behalf Of n9lv

That is what I thought was wrong first of all, tried it both ways and 
no change either way.  I thought for sure when I wired up the 
controller that it was fine, but not sure when the other repeater 
came into the picture.  I am going to check the switches today and 
see if there is anything there.

Mathew

--- In Repeater-Builder@yahoogroups.com, Jim Brown <[EMAIL PROTECTED]> wrote:
>
> Check to see if Zone 2 Function 5 is turned on.  If on, it could 
let a COR signal get to your repeater without having the correct 
CTCSS frequency decoded.
> 
> 73 - Jim  W5ZIT

RE: [Repeater-Builder] Wits End -- Desense

[Eric Lemmon]

John,

While incorporating feedthrough capacitor filters is fairly easy in a new
design or a homebrew project, it is not so easy to convert an existing
commercial product.  In my own Yaesu/Vertex repeater, both the receiver and
the transmitter modules have their control and power connections brought
into the module with plastic "mini-Molex" inline connectors.  It would be
next to impossible to "convert" such connections to feedthrough filters.

I suggest you go back to your original plan of replacing the single-braid
coaxial cable jumpers that exist inside the repeater cabinet, before getting
sidetracked into other potential cures.  In any case, as I noted in a
previous posting, replacing the gray single-braid jumper cables with
RG-400/U cable completely cured my own desense problem.  I did not need to
modify the modules with feedthrough filters or perform exhaustive probing of
the radio to locate or cure the desense.  From the outset, it seemed likely
(to me, anyway) that leakage from the transmit side was causing the desense.
As I recall, the replacement of the bulkhead-to-RX-module jumper with
RG-400/U cable resulted in about a 10% improvement.  Replacement of the
exciter-to-PA jumper resulted in about a 10% improvement.  An 80%
improvement resulted when the PA-to-TX-bulkhead jumper was replaced.  Even
though the latter jumper was only about six inches long, it was "bathing"
the inside of the repeater cabinet with RF.  Based upon that experience, I
suggest replacing that jumper in your repeater first, and then testing for
any improvement.  If it results in a cure, you can button it up and get on
with your life!

Here's another thought:  In another thread, we had some discussion of 3M
(Scotch) #1170 conductive-adhesive-backed aluminum shielding tape.  If you
can get your hands on some of that stuff, you can try over-wrapping the
jumper cables in your repeater with shielding tape, to see if an improvement
results.  Who knows- you might have a cure without doing anything more
intrusive...

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John Transue
Sent: Sunday, August 31, 2008 6:42 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense

JohnR,

   Thanks for the explanation. I'll look at the web site. I suppose the
capacitance should be chosen just to conduct the UHF RF to ground. 

JohnT

 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John J. Riddell
Sent: Sunday, August 31, 2008 8:16 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Wits End -- Desense

 

John,  Feed thru capacitors look like a peice of wire with a "blob" in the
middle,

and have a 1/4" locknut on one side. You drill the chassis and insert the
feed thru cap then

mount 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   

To: Repeater-Builder@yahoogroups.com
  

Sent: Sunday, August 31, 2008 4:55 PM

Subject: RE: [Repeater-Builder] Wits End -- Desense

 

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 says AWM Style
1354, but there are many cables that are said to be UL AWM Style 1354. Some
of these are 75 ohm, some are 50 ohm. This cable is only six inches long. I
plan to replace this as soon as I can get RG400 or other suitable cable. BNC
connectors are used on both the RX unit and the TX unit. 

   I don't know what it means to have a feed through capacitor in
series with a control or audio or power cable. However, a capacitor to
ground might be good to get rid of stray RF.

   Pray if you are so inclined. Otherwise, hope we can make the
physics work. 

Thanks again,

JohnT

 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Sunday, August 31, 2008 3:06 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Wits End -- Desense

 

I was wondering the same thing. Has someone added some wiring and
subsequently breached the integrity of the shielding effectiveness
somewhere? First thing to come to mind is controller interfacing and CTCSS
wiring.

 

Chuck

WB2EDV

 

- Original Message

[Repeater-Builder] TPN1132A Wireup help and questions

[n9lv]

I am trying to wire up the TPN1132A low voltage power supply to the 
high voltage power supply and need some help.  I am looking at the 
manual, I think I have some of it figured out.  I am not sure though 
where the ac power comes in on the low voltage power supply.

Really need some help getting this repeater wired up and running.  
Thanks.  

Mathew

RE: [Repeater-Builder] Wits End -- Desense

[Michael Ryan]

Eric and the group, I had a similar comment offered to me per your comments
below. This reduced DRAMATICALLY the desense in my machine / rack.  If it
were me I would certainly start there. My cables were made at the RF
Connection in MD to the lengths and gender that I requested.  The cost was
well worth it.  -Mike,K4CVL

 

    
I suggest you go back to your original plan of replacing the single-braid
coaxial cable jumpers that exist inside the repeater cabinet, before getting
sidetracked into other potential cures. In any case, as I noted in a
previous posting, replacing the gray single-braid jumper cables with
RG-400/U cable completely cured my own desense problem.  

   

RE: [Repeater-Builder] Wits End -- Desense

[John Transue]

Eric,

  Comments are in red.

Thanks.

JohnT

 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon
Sent: Monday, September 01, 2008 11:53 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense

 

John,

While incorporating feedthrough capacitor filters is fairly easy in a
new
design or a homebrew project, it is not so easy to convert an existing
commercial product. In my own Yaesu/Vertex repeater, both the receiver
and
the transmitter modules have their control and power connections brought
into the module with plastic "mini-Molex" inline connectors. It would be
next to impossible to "convert" such connections to feedthrough filters.
My repeater has the same type feed throughs. I was assuming they have
caps to ground. From your statement above, I probably assumed wrong.

I suggest you go back to your original plan of replacing the
single-braid
coaxial cable jumpers that exist inside the repeater cabinet, before
getting
sidetracked into other potential cures. In any case, as I noted in a
previous posting, replacing the gray single-braid jumper cables with
RG-400/U cable completely cured my own desense problem. I did not need
to
modify the modules with feedthrough filters or perform exhaustive
probing of
the radio to locate or cure the desense. From the outset, it seemed
likely
(to me, anyway) that leakage from the transmit side was causing the
desense. Yes, I have a lot of RF near the outlet from the TX unit. I
will try to get RG400 today (a holiday) or soon, and replace the coax on
the TX unit. The coax on the RX unit is double shielded RG142B. If you
think RG400 is better, I'll change this one too.
As I recall, the replacement of the bulkhead-to-RX-module jumper with
RG-400/U cable resulted in about a 10% improvement. Replacement of the
exciter-to-PA jumper resulted in about a 10% improvement. An 80%
improvement resulted when the PA-to-TX-bulkhead jumper was replaced.
Even
though the latter jumper was only about six inches long, it was
"bathing"
the inside of the repeater cabinet with RF. Based upon that experience,
I
suggest replacing that jumper in your repeater first, and then testing
for
any improvement. If it results in a cure, you can button it up and get
on
with your life!

Here's another thought: In another thread, we had some discussion of 3M
(Scotch) #1170 conductive-adhesive-backed aluminum shielding tape. If
you
can get your hands on some of that stuff, you can try over-wrapping the
jumper cables in your repeater with shielding tape, to see if an
improvement
results. Who knows- you might have a cure without doing anything more
intrusive... I'll try this.

73, Eric Lemmon WB6FLY

Thanks, Eric.

JohnT
-Original Message-
From: Repeater-Builder@ 
yahoogroups.com
[mailto:Repeater-Builder@ 
yahoogroups.com] On Behalf Of John Transue
Sent: Sunday, August 31, 2008 6:42 PM
To: Repeater-Builder@ 
yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense

JohnR,

Thanks for the explanation. I'll look at the web site. I suppose the
capacitance should be chosen just to conduct the UHF RF to ground. 

JohnT

-Original Message-
From: Repeater-Builder@ 
yahoogroups.com
[mailto:Repeater-Builder@ 
yahoogroups.com] On Behalf Of John J. Riddell
Sent: Sunday, August 31, 2008 8:16 PM
To: Repeater-Builder@ 
yahoogroups.com
Subject: Re: [Repeater-Builder] Wits End -- Desense

John, Feed thru capacitors look like a peice of wire with a "blob" in
the
middle,

and have a 1/4" locknut on one side. You drill the chassis and insert
the
feed thru cap then

mount 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 
net> 

To: Repeater-Builder@ 
yahoogroups.com

yahoogroups.com> 

Sent: Sunday, August 31, 2008 4:55 PM

Subject: RE: [Repeater-Builder] Wits End -- Desense



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 says AWM
Style
1354, but there are many cables that are said to be UL AWM Style 1354.
Some
of these are 75 ohm, some are 50 ohm. This cable is only six inches
long. I
plan to replace this as soon as I can get RG400 or othe

RE: [Repeater-Builder] Wits End -- Desense

[Eric Lemmon]

John,

If one cable is RG-142/U, leave it alone.  RG-142/U and RG-400/U are
identical, except that the center conductor of RG-142/U is solid steel that
has been copper-coated and silver-plated.  RG-400/U cable has a stranded
copper center conductor that is silver-plated.  RG-142/U is okay when
applied where the jumper is stationary after installation.

Genuine RG-400/U cable isn't cheap, but its shielding quality and
flexibility are worth the cost.  As another frequent poster to this list
remarked, "Good quality only hurts once; bad quality hurts over and over!"

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of John Transue
Sent: Monday, September 01, 2008 9:31 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense

Eric,

  Comments are in red.

Thanks.

JohnT

 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Eric Lemmon
Sent: Monday, September 01, 2008 11:53 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Wits End -- Desense

 

John,

While incorporating feedthrough capacitor filters is fairly easy in a new
design or a homebrew project, it is not so easy to convert an existing
commercial product. In my own Yaesu/Vertex repeater, both the receiver and
the transmitter modules have their control and power connections brought
into the module with plastic "mini-Molex" inline connectors. It would be
next to impossible to "convert" such connections to feedthrough filters. My
repeater has the same type feed throughs. I was assuming they have caps to
ground. From your statement above, I probably assumed wrong.

I suggest you go back to your original plan of replacing the single-braid
coaxial cable jumpers that exist inside the repeater cabinet, before getting
sidetracked into other potential cures. In any case, as I noted in a
previous posting, replacing the gray single-braid jumper cables with
RG-400/U cable completely cured my own desense problem. I did not need to
modify the modules with feedthrough filters or perform exhaustive probing of
the radio to locate or cure the desense. From the outset, it seemed likely
(to me, anyway) that leakage from the transmit side was causing the desense.
Yes, I have a lot of RF near the outlet from the TX unit. I will try to get
RG400 today (a holiday) or soon, and replace the coax on the TX unit. The
coax on the RX unit is double shielded RG142B. If you think RG400 is better,
I'll change this one too.
As I recall, the replacement of the bulkhead-to-RX-module jumper with
RG-400/U cable resulted in about a 10% improvement. Replacement of the
exciter-to-PA jumper resulted in about a 10% improvement. An 80%
improvement resulted when the PA-to-TX-bulkhead jumper was replaced. Even
though the latter jumper was only about six inches long, it was "bathing"
the inside of the repeater cabinet with RF. Based upon that experience, I
suggest replacing that jumper in your repeater first, and then testing for
any improvement. If it results in a cure, you can button it up and get on
with your life!

Here's another thought: In another thread, we had some discussion of 3M
(Scotch) #1170 conductive-adhesive-backed aluminum shielding tape. If you
can get your hands on some of that stuff, you can try over-wrapping the
jumper cables in your repeater with shielding tape, to see if an improvement
results. Who knows- you might have a cure without doing anything more
intrusive... I'll try this.

73, Eric Lemmon WB6FLY

Thanks, Eric.

JohnT
-Original Message-
From: Repeater-Builder@yahoogroups.com
 
[mailto:Repeater-Builder@yahoogroups.com
 ] On Behalf Of John Transue
Sent: Sunday, August 31, 2008 6:42 PM
To: Repeater-Builder@yahoogroups.com
 
Subject: RE: [Repeater-Builder] Wits End -- Desense

JohnR,

Thanks for the explanation. I'll look at the web site. I suppose the
capacitance should be chosen just to conduct the UHF RF to ground. 

JohnT

-Original Message-
From: Repeater-Builder@yahoogroups.com
 
[mailto:Repeater-Builder@yahoogroups.com
 ] On Behalf Of John J. Riddell
Sent: Sunday, August 31, 2008 8:16 PM
To: Repeater-Builder@yahoogroups.com
 
Subject: Re: [Repeater-Builder] Wits End -- Desense

John, Feed thru capacitors look like a peice of wire with a "blob" in the
middle,

and have a 1/4" locknut on one side. You drill the chassis and insert the
feed thru cap then

mount 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 T

[Repeater-Builder] Harness question

[Larry Wagoner]

I have a question to proffer to our group:

I have an old DB-268 4-bay folded dipole antenna - with the internal harness.

I want to know if it is possible / feasible to replace the internal 
harness with an external one - similar to the harness of a DB-224.

How would attachment of the new harness to the dipole elements be 
achieved, as well as removal of the older harness lines?

How would one manufacture such a harness?

Larry Wagoner - N5WLW


Internal Virus Database is out of date.
Checked by AVG - http://www.avg.com 
Version: 8.0.138 / Virus Database: 270.6.7/1632 - Release Date: 8/25/2008 7:05 
AM

Re: [Repeater-Builder] Equipment for sale.

[Paul Plack]

Keep in mind that 902. puts your lower sideband outside the amateur band...

73,
Paul, AE4KR

  - Original Message - 
  From: Eric M. 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Sunday, August 31, 2008 10:42 AM
  Subject: [Repeater-Builder] Equipment for sale.



  I have 7 - 900 Mhz GTX's for sale.  Each is programmed with 2 simplex 
frequencies of  902. Mhz and 927. Mhz, I gave them a try and I can hear 
myself on my scanner. They are little dirty and they all have the volume knob 
cover missing which does NOT affect it. One of them has channel change buttons 
that you have to push hard or several times to change the channel.

  There are no mounting brackets or power cords with them. I have 2 mics and 
the first 2 radios to go will get mics. I may have some more mics around here, 
I just have to find them, if I find them I will include them with the radios. 
These radios are as is.

  Asking $60 each + actual shipping. Radios will be well packed.


  I also have 2 used commercial 800 Mhz Omnidirectional antennas for sale if 
anyone is interested. 

  The first one is a MaxRAD MFB-8583, it is a 24" long vertical base fibreglass 
antenna, 3db. Asking $75 + actual shipping.
  http://www.hol4g.com/ac/product.aspx?number=MAX-MFB-8583&p=170135&sc=0

  The second one is a MaxRAD MFB-8585, it is a 48" long vertical base 
fibreglass antenna, 5 db.  Asking $100 +  actual shipping.
  http://www.hol4g.com/ac/product.aspx?number=MAX-MFB-8585&p=161262&sc=0

  If you are interested contact me off list, va3eam at sympatico dot ca

  Eric, VA3EAM


   

[Repeater-Builder] Trunking Mode?

[Terry]

I realize this is OT but need to draw on the knowledge here.

A new police agency has popped up here in my County. So far we hear
activity on a frequency of 461.58125.

This is the only frequency found so far. Does the fact that we hear a
pulse (possibly) sub-audible data, every 2 seconds or so give any clue
to what type of system they have or are building?

Thanks
Terry

Re: [Repeater-Builder] Wits End -- Desense

[no6b]

At 8/31/2008 17:18, you wrote:
>John, Check this link to see a picture of a feed thru cap:
>
>http://www.surplussales.com/Capacitors/CapacitorsAll.html
>
>
>73 John VE3AMZ

The feedthru filters are also very good for DC power filtering.  They can't 
be used for logic or audio signals because they would actually filter those 
out.

Bob NO6B

RE: [Repeater-Builder] Trunking Mode?

[Eric Lemmon]

Terry,

The frequency 461.58125 MHz is not authorized for any public-safety use; it
is a narrow-band trunking system channel for commercial applications only.
There are currently only two licensees of that frequency in the country, one
in Indio, CA (WPRV406) and the other in Hennepin, MN (WPSF570).  This
frequency is normally used for Class FB8 stations in the YG service.  It is
authorized only for bandwidth not exceeding 6 kHz.

Perhaps the station you hear is a new commercial trunked radio system being
tested for coverage of Allegany County.  How did you conclude that the user
was a police agency?

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Terry
Sent: Monday, September 01, 2008 10:17 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Trunking Mode?

I realize this is OT but need to draw on the knowledge here.

A new police agency has popped up here in my County. So far we hear
activity on a frequency of 461.58125.

This is the only frequency found so far. Does the fact that we hear a
pulse (possibly) sub-audible data, every 2 seconds or so give any clue
to what type of system they have or are building?

Thanks
Terry

[Repeater-Builder] Sinclair tuning instructions

[cruising7388]

I have an original copy of tuning instructions (Manual CM-112) that covers  
tuning instructions for the
Q-202G, Q-208G, Q-218G, Q-2B01G, Q-2B02G and q-2B17G.
 
If it's of use to anyone, let me know and I'll put it in the mail to  you.
 
Bruce
K7IJ



**It's only a deal if it's where you want to go. Find your travel 
deal here.  
(http://information.travel.aol.com/deals?ncid=aoltrv000547)

RE: [Repeater-Builder] Sinclair tuning instructions

[Eric Lemmon]

Bruce,

If you send it to me for scanning, it will be posted on the Repeater-Builder
site so that everyone can benefit.  Please contact me directly at mycall at
verizon dot net.  Thanks for the offer!

73, Eric Lemmon WB6FLY
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Monday, September 01, 2008 1:24 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Sinclair tuning instructions

I have an original copy of tuning instructions (Manual CM-112) that covers
tuning instructions for the
Q-202G, Q-208G, Q-218G, Q-2B01G, Q-2B02G and q-2B17G.
 
If it's of use to anyone, let me know and I'll put it in the mail to you.
 
Bruce
K7IJ

[Repeater-Builder] Re: MSF5000 Tone Issue, PL 131.8 opens cor, non 131.8 keys repeater but no audio

[n9lv]

I believe that is only available in the digital series where 
programming is done via the rib.  This one is the eprom analog 
setup.  I am thinking there must be another control line going to the 
controller that I am missing.

Mathew

- In Repeater-Builder@yahoogroups.com, "n9wys" <[EMAIL PROTECTED]> wrote:
>
> Mathew,
> 
> Try programming it for "tone only" control (I believe that is 
option "S" in
> both Repeater Control and Receiver Control. Mode Information 
screen) - this
> way even if the station hears a carrier, it won't "react" to it.
> 
> I'm planning on doing that with my station - right now it's set 
for "SC"
> 
> Mark - N9WYS
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com On Behalf Of n9lv
> 
> That is what I thought was wrong first of all, tried it both ways 
and 
> no change either way.  I thought for sure when I wired up the 
> controller that it was fine, but not sure when the other repeater 
> came into the picture.  I am going to check the switches today and 
> see if there is anything there.
> 
> Mathew
> 
> --- In Repeater-Builder@yahoogroups.com, Jim Brown  wrote:
> >
> > Check to see if Zone 2 Function 5 is turned on.  If on, it could 
> let a COR signal get to your repeater without having the correct 
> CTCSS frequency decoded.
> > 
> > 73 - Jim  W5ZIT
>

[Repeater-Builder] Re: Trunking Mode?

[Terry]

Eric, I am hearing traffic from our newly formed County Police.



--- In Repeater-Builder@yahoogroups.com, "Eric Lemmon" <[EMAIL PROTECTED]> 
wrote:
>
> Terry,
> 
> The frequency 461.58125 MHz is not authorized for any public-safety
use; it
> is a narrow-band trunking system channel for commercial applications
only.
> There are currently only two licensees of that frequency in the
country, one
> in Indio, CA (WPRV406) and the other in Hennepin, MN (WPSF570).  This
> frequency is normally used for Class FB8 stations in the YG service.
 It is
> authorized only for bandwidth not exceeding 6 kHz.
> 
> Perhaps the station you hear is a new commercial trunked radio
system being
> tested for coverage of Allegany County.  How did you conclude that
the user
> was a police agency?
> 
> 73, Eric Lemmon WB6FLY
>  
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] On Behalf Of Terry
> Sent: Monday, September 01, 2008 10:17 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Trunking Mode?
> 
> I realize this is OT but need to draw on the knowledge here.
> 
> A new police agency has popped up here in my County. So far we hear
> activity on a frequency of 461.58125.
> 
> This is the only frequency found so far. Does the fact that we hear a
> pulse (possibly) sub-audible data, every 2 seconds or so give any clue
> to what type of system they have or are building?
> 
> Thanks
> Terry
>

Re: [Repeater-Builder] Re: Trunking Mode?

[Ken Arck]

At 04:05 PM 9/1/2008, Terry wrote:

>Eric, I am hearing traffic from our newly formed County Police.
<---Sure you're not hearing an image or a mix?

Ken
--
President and CTO - Arcom Communications
Makers of repeater controllers and accessories.
http://www.arcomcontrollers.com/
Authorized Dealers for Kenwood and Telewave and
we offer complete repeater packages!
AH6LE/R - IRLP Node 3000
http://www.irlp.net
"We don't just make 'em. We use 'em!"

RE: [Repeater-Builder] Re: Trunking Mode?

[Eric Lemmon]

Terry,

Perhaps you are hearing them on an image frequency.  Rest assured, the
frequency you specified, 461.58125 MHz, cannot legally be used by any
Public-Safety agency.  I sincerely doubt that a police agency would
deliberately set up shop on a frequency that they are not authorized to use.
But hey, some rules are made to be broken, and it won't be the first time
that a small police or fire department uses a frequency without the benefit
of a license or proper coordination!

73, Eric Lemmon WB6FLY


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Terry
Sent: Monday, September 01, 2008 4:06 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Trunking Mode?

Eric, I am hearing traffic from our newly formed County Police.

--- In Repeater-Builder@yahoogroups.com
 , "Eric Lemmon" <[EMAIL PROTECTED]>
wrote:
>
> Terry,
> 
> The frequency 461.58125 MHz is not authorized for any public-safety
use; it
> is a narrow-band trunking system channel for commercial applications
only.
> There are currently only two licensees of that frequency in the
country, one
> in Indio, CA (WPRV406) and the other in Hennepin, MN (WPSF570). This
> frequency is normally used for Class FB8 stations in the YG service.
It is
> authorized only for bandwidth not exceeding 6 kHz.
> 
> Perhaps the station you hear is a new commercial trunked radio
system being
> tested for coverage of Allegany County. How did you conclude that
the user
> was a police agency?
> 
> 73, Eric Lemmon WB6FLY
> 
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
 
> [mailto:Repeater-Builder@yahoogroups.com
 ] On Behalf Of Terry
> Sent: Monday, September 01, 2008 10:17 AM
> To: Repeater-Builder@yahoogroups.com
 
> Subject: [Repeater-Builder] Trunking Mode?
> 
> I realize this is OT but need to draw on the knowledge here.
> 
> A new police agency has popped up here in my County. So far we hear
> activity on a frequency of 461.58125.
> 
> This is the only frequency found so far. Does the fact that we hear a
> pulse (possibly) sub-audible data, every 2 seconds or so give any clue
> to what type of system they have or are building?
> 
> Thanks
> Terry
>



 

RE: [Repeater-Builder] Wits End -- Desense

[John Transue]

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 chassis. Lo! And Behold! No more
desense!

  My sincere thanks go to all of you who have helped me through this
most vexing problem. The repeater will be far more useful now.

Best 73s to you all,

JohnT

AF4PD

 

Re: [Repeater-Builder] Anybody have any 146.01 RX / 146.61 TX elements available?

[n4tua]

I may have a set. Let me check and see.
Collin


-Original Message-
From: Mike Morris WA6ILQ <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]; repeater-builder@yahoogroups.com
Sent: Fri, 29 Aug 2008 10:15 pm
Subject: [Repeater-Builder] Anybody have any 146.01 RX / 146.61 TX 
elements available?






I'm helping a local finish a MSR conversion.
Before he drops $ on International he'd like to
put the $ into a hams hands instead.

If anybody has a good set of elements or two on
01-61 please let me know and I'll forward to him.
Yes, he's looking for a spare set for the bench
as well as a set for the mountaintop.

Mike WA6ILQ

[Repeater-Builder] Re: TPN1132A Wireup help and questions

[Joe Burkleo]

Mathew,
Can you give us a little more info on what you are working with. The
TPN1132A tells me that you are most likely working with a Micor series
radio. Is this a low band, V, U or 800 MHz radio and what is the power
level? That will help us identify which high voltage power supply you
have and how it should be wired. Are you wiring this for 120V or 240V?

Joe - WA7JAW

--- In Repeater-Builder@yahoogroups.com, "n9lv" <[EMAIL PROTECTED]> wrote:
>
> I am trying to wire up the TPN1132A low voltage power supply to the 
> high voltage power supply and need some help.  I am looking at the 
> manual, I think I have some of it figured out.  I am not sure though 
> where the ac power comes in on the low voltage power supply.
> 
> Really need some help getting this repeater wired up and running.  
> Thanks.  
> 
> Mathew
>

[Repeater-Builder] Re: TPN1132A Wireup help and questions

[n9lv]

In parts, I think I have figured out that the ac powerline does go to 
TP1 on the high voltage amp.  This is the VHF Motorola Micor Upright 
RT system with the KW amplifier.  Although I am told that the amp 
will have to be converted to make it down to 145.410.  The rest of 
the repeater has already been converted.  I will give a list of all 
the TLN parts tomorrow.  I do have the service manual on the system.  

I know there are several switches that must be closed in order for 
the system to function, and that there is a wire harness that has 
several connectors on it that I am not sure where they go.  I want to 
get the repeater up and functional, then I will go about tuning it to 
our frequency.  

I'm working diligently to get this up and running hence our repeater 
was struck by lightning last month and destroyed.  Thanks

Mathew


--- In Repeater-Builder@yahoogroups.com, "Joe Burkleo" 
<[EMAIL PROTECTED]> wrote:
>
> Mathew,
> Can you give us a little more info on what you are working with. The
> TPN1132A tells me that you are most likely working with a Micor 
series
> radio. Is this a low band, V, U or 800 MHz radio and what is the 
power
> level? That will help us identify which high voltage power supply 
you
> have and how it should be wired. Are you wiring this for 120V or 
240V?
> 
> Joe - WA7JAW
> 
> --- In Repeater-Builder@yahoogroups.com, "n9lv"  wrote:
> >
> > I am trying to wire up the TPN1132A low voltage power supply to 
the 
> > high voltage power supply and need some help.  I am looking at 
the 
> > manual, I think I have some of it figured out.  I am not sure 
though 
> > where the ac power comes in on the low voltage power supply.
> > 
> > Really need some help getting this repeater wired up and 
running.  
> > Thanks.  
> > 
> > Mathew
> >
>

RE: [Repeater-Builder] Side-mounted DB-224 performance

[Ham-Radio]

Don,
 
You are correct. You will not have any problems except through the tower.
Put one bracket at the top and one at the bottom for stability.
 
Charles Miller
 

  _  

From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Don Kovalchik - W8DPK
Sent: Monday, August 25, 2008 4:02 PM
To: repeater-builder@yahoogroups.com
Subject: [Repeater-Builder] Side-mounted DB-224 performance


Our club has permission to mount our brand-new DB-224E on the side of the
local hospital's tower, about halfway up (90').  We want maximum signal to
the north-east, so will be mounting the antenna on the NE leg of the tower,
with all 4 elements on the NE side of the mast.
Is it necessary to use a stand-off bracket? Or would it be OK to mount the
mast right next to the tower leg using the bracket(s) that came with the
antenna?  I don't care about performance to the south-west; actually a null
to the SW would be good to minimize interference from a co-channel system
only 100 miles away.

73,
--Don--  W8DPK

 

[Repeater-Builder] Re: TPN1132A Wireup help and questions

[Joe Burkleo]

Mathew,
I will have a look in our Micor VHF high power cabinet when I get to
the shop tomorrow. Presently I have a V, a U and a low band Micor high
power cabinet in the shop, that we are reading to get all of them up
in service before the snow flys.

Joe

--- In Repeater-Builder@yahoogroups.com, "n9lv" <[EMAIL PROTECTED]> wrote:
>
> In parts, I think I have figured out that the ac powerline does go to 
> TP1 on the high voltage amp.  This is the VHF Motorola Micor Upright 
> RT system with the KW amplifier.  Although I am told that the amp 
> will have to be converted to make it down to 145.410.  The rest of 
> the repeater has already been converted.  I will give a list of all 
> the TLN parts tomorrow.  I do have the service manual on the system.  
> 
> I know there are several switches that must be closed in order for 
> the system to function, and that there is a wire harness that has 
> several connectors on it that I am not sure where they go.  I want to 
> get the repeater up and functional, then I will go about tuning it to 
> our frequency.  
> 
> I'm working diligently to get this up and running hence our repeater 
> was struck by lightning last month and destroyed.  Thanks
> 
> Mathew
> 
> 
> --- In Repeater-Builder@yahoogroups.com, "Joe Burkleo" 
>  wrote:
> >
> > Mathew,
> > Can you give us a little more info on what you are working with. The
> > TPN1132A tells me that you are most likely working with a Micor 
> series
> > radio. Is this a low band, V, U or 800 MHz radio and what is the 
> power
> > level? That will help us identify which high voltage power supply 
> you
> > have and how it should be wired. Are you wiring this for 120V or 
> 240V?
> > 
> > Joe - WA7JAW
> > 
> > --- In Repeater-Builder@yahoogroups.com, "n9lv"  wrote:
> > >
> > > I am trying to wire up the TPN1132A low voltage power supply to 
> the 
> > > high voltage power supply and need some help.  I am looking at 
> the 
> > > manual, I think I have some of it figured out.  I am not sure 
> though 
> > > where the ac power comes in on the low voltage power supply.
> > > 
> > > Really need some help getting this repeater wired up and 
> running.  
> > > Thanks.  
> > > 
> > > Mathew
> > >
> >
>

[Repeater-Builder] Micor to 222 MHz PA Conversion

[Joe Burkleo]

Has anyone ever tried to take a Micor VHF PA to 222 by changing parts
on the PA board? If so what results have you had?

Thanks,
Joe