[Repeater-Builder] Re: had a little power supply trouble the other day...

[Laryn Lohman]

What happens to a non-continuous duty transmitter in
repeater service.

Laryn K8TVZ







 
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[Repeater-Builder] OT: FT-8900 help

[no6b]

The output power of my Yaesu FT-8900 quad bander has dropped to 0.25 watts, 
regardless of power setting. 10, 6 & 2 meter TX output is nominal 
(5/10/20/50 watts).  Current draw on UHF TX is 4.8 amps, again regardless 
of output power setting.

The final device in the radio is a broadband power MOSFET covering all 4 
bands, so it's OK.  I'm thinking something possibly opened between the 
MOSFET drain & antenna (switching diode, filter etc.), but why would the 
current be so high even on low power (low power on the working bands is 
around 1.4 A)?

Bob NO6B






 
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Re: [Repeater-Builder] Re: Repeater Funding

[no6b]

At 1/6/2006 18:03, you wrote:
>No it's not. They'll easily get that amount. Just not from hams.
>
>Chuck
>

Not around here.  Many buildings are emptying out following massive rent hikes.

Bob NO6B






 
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Re: [Repeater-Builder] Re: MAXAR UHF radios for link.

[Scannr]

it's on the repeater builder site, same thing in a mitrek 
conversion













  




  
  
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RE: [Repeater-Builder] Re: Repeater Funding

[Mike Mullarkey]

Hi to all,

First thing you need to know is that if you looking for a site. Go in &
present the system as an emergency communications system. Many of us are
affiliated with the Red Cross aren't you? If you are not do so. The Red
Cross system has had a very easy time to locate on prime sites. Also you may
look at becoming a 501C3 not for profit stat ice. When you do that the site
owner can completely Wright off the donation & to boot it's to a not for
profit donation. They can really use this at tax time.

Oregon Repeater Linking Group
Mike Mullarkey
6539 E Street
Springfield, OR 97478
541-747-1303
[EMAIL PROTECTED]
www.orlg.org
 
 

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Chuck Kelsey
Sent: Friday, January 06, 2006 6:04 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Re: Repeater Funding

No it's not. They'll easily get that amount. Just not from hams.

Chuck




Mike Perryman K5JMP wrote:

> That, Gentlemen, is called "pricing yourself out of the market".  A 
> tactic used when they just don't want to be bothered..
>  
> mike
>
> -Original Message-
> *From:* Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of *Mathew Quaife
> *Sent:* Friday, January 06, 2006 5:13 PM
> *To:* Repeater-Builder@yahoogroups.com
> *Subject:* Re: [Repeater-Builder] Re: Repeater Funding
>
> In the two cases of tower owners that I called, they wanted
> $800.00 a month, and required a 5 million dollar insurance
> policy.  A certainty that we would walk away.
>  
> Mathew
>
>
> */Chuck Kelsey <[EMAIL PROTECTED]>/* wrote:
>
> Hams that have had an easy time co-locating equipment at
> various sites
> often time do not begin to realize just how lucky they are. In
> many
> parts of the country, sites are extremely difficult to come by
> and keep.
>
> Municipal sites can be a real challenge because of liability and
> security concerns. It is even tough to get municipal equipment
> located
> on another municipal site around here. One comment I got from
> a former
> emergency management director was "if we let you locate your ham
> repeater at our site, we'll have to let all hams do the same."
> Then
> there's access issues, liability insurance requirements,
> electric use,
> etc. It can be a real nightmare.
>
> Private sector sites are just as bad. Most just say no. Some want
> outrageous amounts of money and require professional riggers
> to do tower
> work.
>
> Chuck
> WB2EDV
>
>
>
>
> Dave VanHorn wrote:
>
> >--- In Repeater-Builder@yahoogroups.com, Vincent Caruso
> >wrote:
> >
> >
> >>Whats the issue with the water company site?
> >>
> >>
> >
> >In one case, it was just a flat out "NO", with no appeal, no
> logic, no
> >reason.. In another, security concerns.
> >
> >
> >
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>

> Yahoo! DSL
>

> Something to write home about. Just $16.99/mo. or less
>
>
>
>
>
>
>

> YAHOO! GROUPS LINKS
>
> *  Visit your group "Repeater-Builder
>   " on the web.
>
> *  To unsubscribe from this group, send an email to:
>[EMAIL PROTECTED]
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>
> *  Your use of Yahoo! Groups is subject to the Yahoo! Terms of
>   Service .
>
>
>

>





 
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[Repeater-Builder] Re: Kenwood TKB-720 CPU failure

[Coy Hilton]

DId you try a full reset of the radio...that might help. I would try 
it before replacing it.


--- In Repeater-Builder@yahoogroups.com, "byronhham" 
<[EMAIL PROTECTED]> wrote:
>
> Hi All
>   I have a TKB-720 base VHF radio.
> I have apparently killed the CPU.
> It was working fine and I added a wire to bring the unfiltered 
audio 
> to the rear panel connector. I added the wire on the control board.
> 
> But it is murphy's day today. 
> This is the most serious of several things that have gone wrong 
today.
> 
> I accidently connected the audio line to the +12 volt line.
> After the mod the radio appeared to work (because all the displays 
> were working) but I had no audio to the speaker.
> 
> I opened it back up and discovered my mistake but not before the 
> display quit working. It appears that the CPU has died. (no 
channel 
> selection, nor is radio on the default frequecy also no there is 
no 
> channel display.) I checked the power to the CPU it is still good.
> 
> The audio works fine now (unsquelched noise comes throught speaker)
> 
> The control board is a Kenwood number x54-3070-10.
> 
> Does anyone have a spare board or a spare CPU chip?
> 
> Thanks
> Byron NJ7J
>








 
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Re: [Repeater-Builder] Re: Repeater Funding

[Chuck Kelsey]

No it's not. They'll easily get that amount. Just not from hams.

Chuck




Mike Perryman K5JMP wrote:

> That, Gentlemen, is called "pricing yourself out of the market".  A 
> tactic used when they just don't want to be bothered..
>  
> mike
>
> -Original Message-
> *From:* Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of *Mathew Quaife
> *Sent:* Friday, January 06, 2006 5:13 PM
> *To:* Repeater-Builder@yahoogroups.com
> *Subject:* Re: [Repeater-Builder] Re: Repeater Funding
>
> In the two cases of tower owners that I called, they wanted
> $800.00 a month, and required a 5 million dollar insurance
> policy.  A certainty that we would walk away.
>  
> Mathew
>
>
> */Chuck Kelsey <[EMAIL PROTECTED]>/* wrote:
>
> Hams that have had an easy time co-locating equipment at
> various sites
> often time do not begin to realize just how lucky they are. In
> many
> parts of the country, sites are extremely difficult to come by
> and keep.
>
> Municipal sites can be a real challenge because of liability and
> security concerns. It is even tough to get municipal equipment
> located
> on another municipal site around here. One comment I got from
> a former
> emergency management director was "if we let you locate your ham
> repeater at our site, we'll have to let all hams do the same."
> Then
> there's access issues, liability insurance requirements,
> electric use,
> etc. It can be a real nightmare.
>
> Private sector sites are just as bad. Most just say no. Some want
> outrageous amounts of money and require professional riggers
> to do tower
> work.
>
> Chuck
> WB2EDV
>
>
>
>
> Dave VanHorn wrote:
>
> >--- In Repeater-Builder@yahoogroups.com, Vincent Caruso
> >wrote:
> >
> >
> >>Whats the issue with the water company site?
> >>
> >>
> >
> >In one case, it was just a flat out "NO", with no appeal, no
> logic, no
> >reason.. In another, security concerns.
> >
> >
> >
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
> 
> Yahoo! DSL
> 
> 
> Something to write home about. Just $16.99/mo. or less
>
>
>
>
>
>
> 
> YAHOO! GROUPS LINKS
>
> *  Visit your group "Repeater-Builder
>   " on the web.
>
> *  To unsubscribe from this group, send an email to:
>[EMAIL PROTECTED]
>   
>
> *  Your use of Yahoo! Groups is subject to the Yahoo! Terms of
>   Service .
>
>
> 
>





 
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[Repeater-Builder] Re: MAXAR UHF radios for link.

[ve3ext]

Any chance to see the circuit of this two trans. cos switch? 

Tnx 

Jerry 

VE3 EXT




 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Larry Lockard]

Thanks for the feedback Bob 

Group here is a great place to get a better understanding  :-))

Tnx
Larry


- Original Message - 
From: <[EMAIL PROTECTED]>
To: 
Sent: Friday, January 06, 2006 8:33 AM
Subject: Re: [Repeater-Builder] Repeater Assistance in Michigan.


> At 1/6/2006 01:34, you wrote:
>>Bob,
>>
>>Sorry if I didn't get it right but now I am really confused  and open 
>>to
>>learn.
>>
>>
>> > Shielding percentage of the antenna feedline has nothing to do with 
>> > duplex
>> > suitability.
>>
>>Somewhere I am missing something If shielding doesn't play a part in 
>>the
>>suitability factor of selecting feedlines,  why do we use hardline (other
>>than less loss) or double shielded jumpers for connections etc.in a duplex
>>operation?
>
> Double-shielded jumpers are needed where isolation is needed between TX &
> RX (duplexer jumpers & RX/TX connections to the duplexer).  From the
> duplexer antenna connector onward to the antenna, the TX & RX are already
> combined.  What's important there is linearity.  RG-214 is 
> double-shielded,
> but it's also silver plated (or supposed to be, some '214-type' cable
> isn't).  Hardline has a solid outer conductor with no intermittent/point
> contacts to generate IMD, so it's also extremely linear.
>
> Bob NO6B
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
> 





 
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RE: [Repeater-Builder] Re: Repeater Funding

[Bob M.]

The FM tower I'm on wants $400/mo and $1M to $3M of
insurance in case an antenna falls and disrupts
anything further down the tower, which right now isn't
critical. They won't let a client do any of their own
tower work, so they have to pay their riggers.

I was lucky and managed to be in the right place at
the right time. I bought the antenna and coax; the
station had it put up. I live there rent-free as the
only amateur station.

Bob M.
==
--- Mike Perryman K5JMP <[EMAIL PROTECTED]>
wrote:

> That, Gentlemen, is called "pricing yourself out of
> the market".  A tactic
> used when they just don't want to be bothered..
> 
> mike
>   -Original Message-
>   From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf
> Of Mathew Quaife
>   Sent: Friday, January 06, 2006 5:13 PM
>   To: Repeater-Builder@yahoogroups.com
>   Subject: Re: [Repeater-Builder] Re: Repeater
> Funding
> 
> 
>   In the two cases of tower owners that I called,
> they wanted $800.00 a
> month, and required a 5 million dollar insurance
> policy.  A certainty that
> we would walk away.
> 
>   Mathew
> 
> 
>   Chuck Kelsey <[EMAIL PROTECTED]> wrote:
> Hams that have had an easy time co-locating
> equipment at various sites
> often time do not begin to realize just how
> lucky they are. In many
> parts of the country, sites are extremely
> difficult to come by and keep.
> 
> Municipal sites can be a real challenge because
> of liability and
> security concerns. It is even tough to get
> municipal equipment located
> on another municipal site around here. One
> comment I got from a former
> emergency management director was "if we let you
> locate your ham
> repeater at our site, we'll have to let all hams
> do the same." Then
> there's access issues, liability insurance
> requirements, electric use,
> etc. It can be a real nightmare.
> 
> Private sector sites are just as bad. Most just
> say no. Some want
> outrageous amounts of money and require
> professional riggers to do tower
> work.
> 
> Chuck
> WB2EDV
> 
> 
> 
> 
> Dave VanHorn wrote:
> 
> >--- In Repeater-Builder@yahoogroups.com,
> Vincent Caruso
> >wrote:
> >
> >
> >>Whats the issue with the water company site?
> >>
> >>
> >
> >In one case, it was just a flat out "NO", with
> no appeal, no logic, no
> >reason.. In another, security concerns.



__ 
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Just $16.99/mo. or less. 
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RE: [Repeater-Builder] Re: Repeater Funding

[Mike Perryman K5JMP]

That, 
Gentlemen, is called "pricing yourself out of the market".  A tactic used 
when they just don't want to be bothered..
 
mike

  -Original Message-From: 
  Repeater-Builder@yahoogroups.com 
  [mailto:[EMAIL PROTECTED]On Behalf Of Mathew 
  QuaifeSent: Friday, January 06, 2006 5:13 PMTo: 
  Repeater-Builder@yahoogroups.comSubject: Re: [Repeater-Builder] Re: 
  Repeater Funding
  In the two cases of tower owners that I called, they wanted $800.00 a 
  month, and required a 5 million dollar insurance policy.  A certainty 
  that we would walk away.
   
  Mathew
  Chuck Kelsey <[EMAIL PROTECTED]> wrote:
  Hams 
that have had an easy time co-locating equipment at various sites often 
time do not begin to realize just how lucky they are. In many parts of 
the country, sites are extremely difficult to come by and 
keep.Municipal sites can be a real challenge because of liability 
and security concerns. It is even tough to get municipal equipment 
located on another municipal site around here. One comment I got from a 
former emergency management director was "if we let you locate your ham 
repeater at our site, we'll have to let all hams do the same." Then 
there's access issues, liability insurance requirements, electric use, 
etc. It can be a real nightmare.Private sector sites are just as 
bad. Most just say no. Some want outrageous amounts of money and require 
professional riggers to do tower 
work.ChuckWB2EDVDave VanHorn 
wrote:>--- In Repeater-Builder@yahoogroups.com, Vincent Caruso 
<[EMAIL PROTECTED]>>wrote:> >>>Whats the issue 
with the water company site?>> In one 
case, it was just a flat out "NO", with no appeal, no logic, no 
>reason.. In another, security concerns. >> 
>Yahoo! Groups Links<*> To 
visit your group on the web, go 
to:http://groups.yahoo.com/group/Repeater-Builder/<*> To 
unsubscribe from this group, send an email 
to:[EMAIL PROTECTED]<*> Your 
use of Yahoo! Groups is subject 
to:http://docs.yahoo.com/info/terms/
  
  
  
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  DSL Something to write home about. Just $16.99/mo. or less 













  




  
  
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Re: [Repeater-Builder] Re: Repeater Funding

[Mathew Quaife]

In the two cases of tower owners that I called, they wanted $800.00 a month, and required a 5 million dollar insurance policy.  A certainty that we would walk away.     Mathew  Chuck Kelsey <[EMAIL PROTECTED]> wrote:  Hams that have had an easy time co-locating equipment at various sites often time do not begin to realize just how lucky they are. In many parts of the country, sites are extremely difficult to come by and keep.Municipal sites can be a real challenge because of liability and security concerns. It is even tough to get municipal equipment located on another municipal site around here. One comment I got from a former emergency management director was "if we let you locate your ham repeater at our site, we'll have to let all hams do the same." Then there's
 access issues, liability insurance requirements, electric use, etc. It can be a real nightmare.Private sector sites are just as bad. Most just say no. Some want outrageous amounts of money and require professional riggers to do tower work.ChuckWB2EDVDave VanHorn wrote:>--- In Repeater-Builder@yahoogroups.com, Vincent Caruso <[EMAIL PROTECTED]>>wrote:> >>>Whats the issue with the water company site?>> In one case, it was just a flat out "NO", with no appeal, no logic, no >reason.. In another, security concerns. >> >Yahoo! Groups Links<*> To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/<*> To unsubscribe from this group, send an email to:[EMAIL PROTECTED]<*> Your use of Yahoo! Groups is
 subject to:http://docs.yahoo.com/info/terms/  
		 Yahoo! DSL Something to write home about. Just $16.99/mo. or less













  




  
  
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[James]

Bob Dengler wrote:

>At 1/6/2006 08:52 AM, you wrote:
>  
>
>>Just as a point of reference, I have a UHF machine Moto MSF5000 pumping
>>out 90watts going up 170 ft of LMR400 coax and I get great results.
>>
>>
>
>I have a temporary installation being fed with ~45' of LMR400 (originally 
>bought for my portapeater) & have no duplexing problems with it right 
>now.  However, I wouldn't expect it to stay that way if I left it up 
>permanently.
>
>  
>
>> To
>>make it more interesting, I have a comet duplexer at the feedpoint (in
>>my station) so I can use the VHF part of the fiberglass dual band
>>wonderstick as RX for my vhf repeater till I get a duplexer that will
>>tune to 144.630(my DB duplexer wont)
>>
>>
>
>Doing that too, though at a different site that's 100% RG-214 & 
>hardline.  Originally the Diamond diplexer had pigtail leads, & those 
>caused desense.
>
>  
>
Replace the Diamond/Comet Pigtail leads with RG 393, and you'll get 
awesome results! (Real RG214 would probably be good too).

James





 
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RE: [Repeater-Builder] had a little power supply trouble the other day...

[N9WYS]

Or as we used to say when I was a volunteer Firefighter:
Blast Leveling Everything Very Effectively.  Hehehe

Mark - N9WYS

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Buley, Kenneth L (GE
Consumer & Industrial)
Sent: Friday, January 06, 2006 5:21 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] had a little power supply trouble the other
day...

Maybe a lesson in proper fuse sizing is in order??? Nice clip!
I think they call that a BLEVY!!!


Actually, it's a BLEVE (Boiling Liquid Expanding Vapor Explosion for the
non-firefighters in the group).






 
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[Repeater-Builder] Kenwood TKB-720 CPU failure

[byronhham]

Hi All
  I have a TKB-720 base VHF radio.
I have apparently killed the CPU.
It was working fine and I added a wire to bring the unfiltered audio 
to the rear panel connector. I added the wire on the control board.

But it is murphy's day today. 
This is the most serious of several things that have gone wrong today.

I accidently connected the audio line to the +12 volt line.
After the mod the radio appeared to work (because all the displays 
were working) but I had no audio to the speaker.

I opened it back up and discovered my mistake but not before the 
display quit working. It appears that the CPU has died. (no channel 
selection, nor is radio on the default frequecy also no there is no 
channel display.) I checked the power to the CPU it is still good.

The audio works fine now (unsquelched noise comes throught speaker)

The control board is a Kenwood number x54-3070-10.

Does anyone have a spare board or a spare CPU chip?

Thanks
Byron NJ7J








 
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[Repeater-Builder] Re: Follow up from the original thread ??

[ANTHONY]

A FRIEND OF MINE HAS A MOTOROLA MICOR VHF-MOBILE, IT HAS BEEN HAVING 
A PROBLEM WITH SQUEALLING, AND I THINK I KNOW WHAT IS MAKING THE 
NOISE PROBLEM, AS I HAVE NOTICED WHEN THIS IS OCCURRING, THE 
TRANSMITTER ON THE UNIT IS FLICKERING ON AND OFF, WHEN NOT MAKING 
NOISE, IT SEEMS TO BE WORKING ALLRIGHT EXCEPT, IT HAS A  POPPING 
SOUND, WHEN IN USE.I THINK THE PROBLEM IS THAT WHEN UNKEYED, YOU 
HEAR A SQUEALCH TAIL ON THE REAPEATER, THEN THE TRANSMITTER UNKEYS 
FOR MAYBE A SECOND, THEN IT KEYS BACK UP AND CREATES THE COURTESY 
CAT 300DX controller there is some type of delay

Anthony W4NCR



--- In Repeater-Builder@yahoogroups.com, <[EMAIL PROTECTED]> wrote:
>
> Anthony, could you explain your problem in "plain"
> english?
> 
> I've read your posting several times and have
> concluded your English Grammer "SUCKS"!
> 
> Please try to explain your problem so others that read
> your email understand your problem.
> 
> Hey, who knows, you might even get a response.
> 
> Regards, Barry
> 
> --- ANTHONY <[EMAIL PROTECTED]> wrote:
> 
> > Find a strange weird problem
> > 
> > I recall the last posted while back a RF feedback
> > problems Inotes 
> > the repeater win it key up use to test on my HT then
> > nukey here the 
> > transmitter on the repeater microsecond nukey that
> > here a click 
> > transmitter its unkey than it key up for the
> > courteously tone from 
> > CAT 300DX controller there is some type of delay?
> > has anybody in 
> > this forum spirits this problem before ?with their
> > MOTOROLA MICOR 
> > VHF mobile
> > 
> > this thread  :) Anthony W4NCR
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > --- In Repeater-Builder@yahoogroups.com, "ANTHONY"
> > <[EMAIL PROTECTED]> wrote:
> > >
> > > Follow up from the original thread !!  
> > > I have a Micor Motorola mobile repeater operating
> > on 147.165 MHz  
> > > and I have foreign broadcast transmitting on a 
> > frequency of 
> > 11.700 
> > > MHz which is getting into the IF section of my
> > receiver which also 
> > > operates on the same frequency 11.700 MHz  so my
> > question that I'm 
> > > asking is  how can I shield this foreign broadcast
> > so it will not 
> > be 
> > > able to get into the IF section of  my receiver
> > and stop it from 
> > > constantly keying my repeater up when propagation
> > is good?
> > > 
> > > 
> > > Subject: Re: MOTOROLA MICOR receiver VHF 
> > boogirls2 
> > >  
> > > I been tested different power supplies steel have
> > the same problem?
> > > It's Agivate at times and to find a needle in
> > haystack , And when 
> > it
> > > does this sometimes, doing day time usually was at
> > time at night
> > > after 9 p.m. you cannot use it making the noise??
> > Thanks for all
> > > reply
> > > this thread  :) Anthony W4NCR
> > >
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > [EMAIL PROTECTED]
> > 
> >  
> > 
> > 
> > 
> > 
> 
> 
> 
>   
> __ 
> Yahoo! DSL – Something to write home about. 
> Just $16.99/mo. or less. 
> dsl.yahoo.com
>








 
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Re: [Repeater-Builder] Re: Repeater Funding

[Chuck Kelsey]

Hams that have had an easy time co-locating equipment at various sites 
often time do not begin to realize just how lucky they are. In many 
parts of the country, sites are extremely difficult to come by and keep.

Municipal sites can be a real challenge because of liability and 
security concerns. It is even tough to get municipal equipment located 
on another municipal site around here. One comment I got from a former 
emergency management director was "if we let you locate your ham 
repeater at our site, we'll have to let all hams do the same." Then 
there's access issues, liability insurance requirements, electric use, 
etc. It can be a real nightmare.

Private sector sites are just as bad. Most just say no. Some want 
outrageous amounts of money and require professional riggers to do tower 
work.

Chuck
WB2EDV




Dave VanHorn wrote:

>--- In Repeater-Builder@yahoogroups.com, Vincent Caruso <[EMAIL PROTECTED]> 
>wrote:
>  
>
>>Whats the issue with the water company site?
>>
>>
>
>In one case, it was just a flat out "NO", with no appeal, no logic, no 
>reason..  In another, security concerns. 
>
>  
>





 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Jay Urish]

I can work the UHF machine 40miles away with a mobile and 50-60on the 
VHF side.

Bear in mind that my backyard is 660 or so ASL.


Mathew Quaife wrote:
> What are you calling great results?  At best my UHF at 100' on a 
> handheld with a 6 dB gain antenna gives me about 7 to 8 miles of range, 
> considered usable, fed with 1/2" hardline.  At 170 ft of LMR 400 you 
> would have nearly a 3.5 dB of loss in just the cable.
>  
> Mathew
> 
> 
> */Jay Urish <[EMAIL PROTECTED]>/* wrote:
> 
> Just as a point of reference, I have a UHF machine Moto MSF5000 pumping
> out 90watts going up 170 ft of LMR400 coax and I get great results. To
> make it more interesting, I have a comet duplexer at the feedpoint (in
> my station) so I can use the VHF part of the fiberglass dual band
> wonderstick as RX for my vhf repeater till I get a duplexer that will
> tune to 144.630(my DB duplexer wont)
> 
> 
> [EMAIL PROTECTED] wrote:
>  > At 1/6/2006 01:34, you wrote:
>  >
>  >>Bob,
>  >>
>  >>Sorry if I didn't get it right but now I am really confused 
> and open to
>  >>learn.
>  >>
>  >>
>  >>
>  >>>Shielding percentage of the antenna feedline has nothing to do
> with duplex
>  >>>suitability.
>  >>
>  >>Somewhere I am missing something If shielding doesn't play a
> part in the
>  >>suitability factor of selecting feedlines, why do we use hardline
> (other
>  >>than less loss) or double shielded jumpers for connections etc.in
> a duplex
>  >>operation?
>  >
>  >
>  > Double-shielded jumpers are needed where isolation is needed
> between TX &
>  > RX (duplexer jumpers & RX/TX connections to the duplexer). From the
>  > duplexer antenna connector onward to the antenna, the TX & RX are
> already
>  > combined. What's important there is linearity. RG-214 is
> double-shielded,
>  > but it's also silver plated (or supposed to be, some '214-type'
> cable
>  > isn't). Hardline has a solid outer conductor with no
> intermittent/point
>  > contacts to generate IMD, so it's also extremely linear.
>  >
>  > Bob NO6B
>  >
>  >
>  >
>  >
>  >
>  >
>  >
>  > Yahoo! Groups Links
>  >
>  >
>  >
>  >
>  >
>  >
>  >
> -- 
> Jay Urish Systems Engineer
> Unixwolf Enterprises LLC.
> http://www.unixwolf.net
> 972.691.0125 972.965.6229
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 
> Yahoo! DSL 
>   
>  > Something to write home about. Just $16.99/mo. or less
> 
> 
> 
> 
> 
> 
> 
> YAHOO! GROUPS LINKS
> 
> *  Visit your group "Repeater-Builder
>   " on the web.
>
> *  To unsubscribe from this group, send an email to:
>[EMAIL PROTECTED]
>   
>
> *  Your use of Yahoo! Groups is subject to the Yahoo! Terms of
>   Service .
> 
> 
> 
> 
-- 
Jay UrishSystems Engineer
Unixwolf Enterprises LLC.
http://www.unixwolf.net
972.691.0125972.965.6229




 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Jay Urish]

About 4 years. This is the tower in my backyard. Its Rohn25g 72ft+19ft 
mastpipe. One correction, its actually LMR400UF(ultra-flex). Gotta do 
the rotor loop!


Mike Perryman wrote:
> Jay,
> I am curious how long the LMR-400 (feed-line up the tower)has been in
> service?
> 
> mike
> 
> -Original Message-
> From: Repeater-Builder@yahoogroups.com
> [mailto:[EMAIL PROTECTED] Behalf Of Jay Urish
> Sent: Friday, January 06, 2006 11:52 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: Re: [Repeater-Builder] Repeater Assistance in Michigan.
> 
> 
> Just as a point of reference, I have a UHF machine Moto MSF5000 pumping
> out 90watts going up 170 ft of LMR400 coax and I get great results. To
> make it more interesting, I have a comet duplexer at the feedpoint (in
> my station) so I can use the VHF part of the fiberglass dual band
> wonderstick as RX for my vhf repeater till I get a duplexer that will
> tune to 144.630(my DB duplexer wont)
> 
> 
> [EMAIL PROTECTED] wrote:
> 
>>At 1/6/2006 01:34, you wrote:
>>
>>
>>>Bob,
>>>
>>>Sorry if I didn't get it right but now I am really confused  and open
> 
> to
> 
>>>learn.
>>>
>>>
>>>
Shielding percentage of the antenna feedline has nothing to do with
> 
> duplex
> 
suitability.
>>>
>>>Somewhere I am missing something If shielding doesn't play a part in
> 
> the
> 
>>>suitability factor of selecting feedlines,  why do we use hardline (other
>>>than less loss) or double shielded jumpers for connections etc.in a duplex
>>>operation?
>>
>>
>>Double-shielded jumpers are needed where isolation is needed between TX &
>>RX (duplexer jumpers & RX/TX connections to the duplexer).  From the
>>duplexer antenna connector onward to the antenna, the TX & RX are already
>>combined.  What's important there is linearity.  RG-214 is
> 
> double-shielded,
> 
>>but it's also silver plated (or supposed to be, some '214-type' cable
>>isn't).  Hardline has a solid outer conductor with no intermittent/point
>>contacts to generate IMD, so it's also extremely linear.
>>
>>Bob NO6B
>>
>>
>>
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
> 
> --
> Jay UrishSystems Engineer
> Unixwolf Enterprises LLC.
> http://www.unixwolf.net
> 972.691.0125972.965.6229
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 
-- 
Jay UrishSystems Engineer
Unixwolf Enterprises LLC.
http://www.unixwolf.net
972.691.0125972.965.6229




 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Bob Dengler]

At 1/6/2006 08:52 AM, you wrote:
>Just as a point of reference, I have a UHF machine Moto MSF5000 pumping
>out 90watts going up 170 ft of LMR400 coax and I get great results.

I have a temporary installation being fed with ~45' of LMR400 (originally 
bought for my portapeater) & have no duplexing problems with it right 
now.  However, I wouldn't expect it to stay that way if I left it up 
permanently.

>  To
>make it more interesting, I have a comet duplexer at the feedpoint (in
>my station) so I can use the VHF part of the fiberglass dual band
>wonderstick as RX for my vhf repeater till I get a duplexer that will
>tune to 144.630(my DB duplexer wont)

Doing that too, though at a different site that's 100% RG-214 & 
hardline.  Originally the Diamond diplexer had pigtail leads, & those 
caused desense.

Bob NO6B






 
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[Repeater-Builder] Excellant packing job by Repeater Builder member Jerry WB6NYS

[roger.white]

Just wanted to let everyone know I bought a piece of equipment from Jerry, 
WB6NYS, who is on this forum. The stuff arrived in "excellent" condition and 
the packaging was outstanding.

Many thanks again Jerry!

Roger W5RD




 
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Re: [Repeater-Builder] Duplexer for sale

[Mark Lacy]

I live in E. Texas
$475.00 + shipping

Thanks  - Mark   W5TXR


>From: Steve Polley <[EMAIL PROTECTED]>
>Reply-To: Repeater-Builder@yahoogroups.com
>To: Repeater-Builder@yahoogroups.com
>Subject: Re: [Repeater-Builder] Duplexer for sale
>Date: Sun, 01 Jan 2006 01:21:06 -0600
>
>$100??  Live in Missouri.  73's
>
>tshell wrote:
>
> >What wd be a reasonable offer? And what area do you live?   Terry.






 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Mathew Quaife]

What are you calling great results?  At best my UHF at 100' on a handheld with a 6 dB gain antenna gives me about 7 to 8 miles of range, considered usable, fed with 1/2" hardline.  At 170 ft of LMR 400 you would have nearly a 3.5 dB of loss in just the cable.     Mathew  Jay Urish <[EMAIL PROTECTED]> wrote:  Just as a point of reference, I have a UHF machine Moto MSF5000 pumping out 90watts going up 170 ft of LMR400 coax and I get great results. To make it more interesting, I have a comet duplexer at the feedpoint (in my station) so I can use the VHF part of the fiberglass dual band wonderstick as RX for my vhf repeater till I get a duplexer that will tune to 144.630(my DB duplexer wont)[EMAIL PROTECTED] wrote:> At 1/6/2006 01:34, you wrote:>
 >>Bob,Sorry if I didn't get it right but now I am really confused  and open to>>learn.>Shielding percentage of the antenna feedline has nothing to do with duplex>>>suitability.Somewhere I am missing something If shielding doesn't play a part in the>>suitability factor of selecting feedlines, why do we use hardline (other>>than less loss) or double shielded jumpers for connections etc.in a duplex>>operation?> > > Double-shielded jumpers are needed where isolation is needed between TX & > RX (duplexer jumpers & RX/TX connections to the duplexer). From the > duplexer antenna connector onward to the antenna, the TX & RX are already > combined. What's important there is linearity. RG-214 is double-shielded, > but it's also silver plated (or
 supposed to be, some '214-type' cable > isn't). Hardline has a solid outer conductor with no intermittent/point > contacts to generate IMD, so it's also extremely linear.> > Bob NO6B> > > > > > > > Yahoo! Groups Links> > > > > > > -- Jay Urish Systems EngineerUnixwolf Enterprises LLC.http://www.unixwolf.net972.691.0125 972.965.6229Yahoo! Groups Links<*> To visit your group on the web, go to:http://groups.yahoo.com/group/Repeater-Builder/<*> To unsubscribe from this group, send an email to:[EMAIL PROTECTED]<*> Your use of Yahoo! Groups is subject to:http://docs.yahoo.com/info/terms/  
		 Yahoo! DSL Something to write home about. Just $16.99/mo. or less













  




  
  
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RE: [Repeater-Builder] Repeater Assistance in Michigan.

[Mike Perryman]

Jay,
I am curious how long the LMR-400 (feed-line up the tower)has been in
service?

mike

-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] Behalf Of Jay Urish
Sent: Friday, January 06, 2006 11:52 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Repeater Assistance in Michigan.


Just as a point of reference, I have a UHF machine Moto MSF5000 pumping
out 90watts going up 170 ft of LMR400 coax and I get great results. To
make it more interesting, I have a comet duplexer at the feedpoint (in
my station) so I can use the VHF part of the fiberglass dual band
wonderstick as RX for my vhf repeater till I get a duplexer that will
tune to 144.630(my DB duplexer wont)


[EMAIL PROTECTED] wrote:
> At 1/6/2006 01:34, you wrote:
>
>>Bob,
>>
>>Sorry if I didn't get it right but now I am really confused  and open
to
>>learn.
>>
>>
>>
>>>Shielding percentage of the antenna feedline has nothing to do with
duplex
>>>suitability.
>>
>>Somewhere I am missing something If shielding doesn't play a part in
the
>>suitability factor of selecting feedlines,  why do we use hardline (other
>>than less loss) or double shielded jumpers for connections etc.in a duplex
>>operation?
>
>
> Double-shielded jumpers are needed where isolation is needed between TX &
> RX (duplexer jumpers & RX/TX connections to the duplexer).  From the
> duplexer antenna connector onward to the antenna, the TX & RX are already
> combined.  What's important there is linearity.  RG-214 is
double-shielded,
> but it's also silver plated (or supposed to be, some '214-type' cable
> isn't).  Hardline has a solid outer conductor with no intermittent/point
> contacts to generate IMD, so it's also extremely linear.
>
> Bob NO6B
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
--
Jay UrishSystems Engineer
Unixwolf Enterprises LLC.
http://www.unixwolf.net
972.691.0125972.965.6229





Yahoo! Groups Links










 
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[Repeater-Builder] Re: Help / suggestion needed...feedback? on Mitrek

[skipp025]

Some type of bypass or sub controller would be a 
handy way to remove the controller from the list 
of suspects. 

You need to isolate the problem from the radio, 
the controller or the paths back and forth. 


skipp 


> "Scott" <[EMAIL PROTECTED]> wrote:
>
> I have a UHF repeater built out of a trunk mount Mitrek (Motrek), has
> CAT 250 controller, 3 can duplexer rated around 300W. Current output
> is about 23-25W into duplexer. No external amp. Control head is on
> radio, mic disconnected. Factory tone reed board for RX tone, TS32 for
> TX tone. Antenna good swr and condition at 150 ft feed with 1 1/4"
> heliax. 15 amp switching power supply. All controller to radio cabling
> is done inside the radio with highly sheilded cable with shield
> grounded to 12- buss inside radio. Controller is in a factory metal
> rack case.
> 
> With RX tone ON (in CAT), repeater will key up and start some God
> awful squawl for about 5 seconds then unkey. Repeater is almost
> unusable when this happens, continuing to squawl when anyone tries to
> use it. Squawl continues until squelch tail ends. Sometimes a cycle
> off / on fixes it.
>  
> With RX tone OFF (in CAT) the squawl usually only happens when the
> repeater kys up with voice ID, starting at the second letter of call
> and ending when ID finishes. Repeater can then be talked on
> immediately, and usually will function properly (sometimes still does
> glitch, but only for a second or two.
> 
> When working properly, has one of the best RF and audio signals I have
> ever heard on a machine.
> 
> Suggestions?
>








 
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[Repeater-Builder] Bomar and price increase.

[Kevin Custer]

Just an FYI:

My latest order from Bomar cost me $35 each ($70 for 2) for recrystaling 
and TC'ing, not including shipping  I phoned them and they informed me 
of the price increase, even though the website still states $25 each.

Oh well, ICM wants about $125 for redoing a pair so I guess it's all in 
what you want...

Kevin




 
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Re: [Repeater-Builder] Motorola GP-300 Charger

[Mike Pugh]

Don wrote:

> I just wonder how many of the chargers I have seen at the Hamfest Not
> Working if this was the Problem, But Hey wait a Minuit is this Some
> Big Secret that no one wanted to share because the Motorola Shops,
> Dealers Just Sell the Customer a New One after all the Case dos not
> come apart, Oh well it is a Good day as We get older to actually learn
> something an Fix it, I guess that is why they call it Amateur Radio 
> 
> 73 De Don KA9QJG 

Don, I can give you another viewpoint to this perplexing question. I 
spent 18 years working in LMR, and when I first started, I asked the 
same question. It seemed that we were throwing away a lot of good 
useable stuff in favor of selling a new one. Once it was explained to me 
that in a commercial radio environment, with bench labor fees being what 
they were (at the time I left the biz in 2002, it was >$100/hr) it 
simply did not make sense for a tech to get his dremel tool out, saw the 
wall wart in half to replace a .50 fuse, then glue it back together. It 
was cheaper to sell the customer a new $30 supply.

Of course, just the opposite is true in amateur radio. What makes 
absolutely no sense in commercial radio because of the money involved, 
makes perfect sense in amateur radio. That is because most of us try to 
not spend any more money on our hobby than we absolutely have to, and we 
enjoy dinking around with stuff as part of our hobby. So what if it 
takes all afternoon to replace the fuse and glue the wall wart back 
together? It costs us nothing except the glue and the fuse.

This was difficult for me to understand at first, but eventually it 
became easy to figure out.. Contrary to popular belief, no one was 
getting ripped off for selling a new one instead of replacing the old 
one, it really did make better sense in the long run. Mike KA4MKG






 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Jay Urish]

Just as a point of reference, I have a UHF machine Moto MSF5000 pumping 
out 90watts going up 170 ft of LMR400 coax and I get great results. To 
make it more interesting, I have a comet duplexer at the feedpoint (in 
my station) so I can use the VHF part of the fiberglass dual band 
wonderstick as RX for my vhf repeater till I get a duplexer that will 
tune to 144.630(my DB duplexer wont)


[EMAIL PROTECTED] wrote:
> At 1/6/2006 01:34, you wrote:
> 
>>Bob,
>>
>>Sorry if I didn't get it right but now I am really confused  and open to
>>learn.
>>
>>
>>
>>>Shielding percentage of the antenna feedline has nothing to do with duplex
>>>suitability.
>>
>>Somewhere I am missing something If shielding doesn't play a part in the
>>suitability factor of selecting feedlines,  why do we use hardline (other
>>than less loss) or double shielded jumpers for connections etc.in a duplex
>>operation?
> 
> 
> Double-shielded jumpers are needed where isolation is needed between TX & 
> RX (duplexer jumpers & RX/TX connections to the duplexer).  From the 
> duplexer antenna connector onward to the antenna, the TX & RX are already 
> combined.  What's important there is linearity.  RG-214 is double-shielded, 
> but it's also silver plated (or supposed to be, some '214-type' cable 
> isn't).  Hardline has a solid outer conductor with no intermittent/point 
> contacts to generate IMD, so it's also extremely linear.
> 
> Bob NO6B
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 
-- 
Jay UrishSystems Engineer
Unixwolf Enterprises LLC.
http://www.unixwolf.net
972.691.0125972.965.6229




 
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[Repeater-Builder] Re: Repeater Assistance in Michigan.

[Dave VanHorn]

> We are up 27.0m, but have an HAAT of 16.4m 3dB gain antenna, and 
you  
> know the feedline :)  What could you expect our max range to be w/  
handhelds?


There's a free program called "Radio Mobile" that will show you this 
sort of thing, taking into account the actual terrain.








 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[no6b]

At 1/6/2006 01:34, you wrote:
>Bob,
>
>Sorry if I didn't get it right but now I am really confused  and open to
>learn.
>
>
> > Shielding percentage of the antenna feedline has nothing to do with duplex
> > suitability.
>
>Somewhere I am missing something If shielding doesn't play a part in the
>suitability factor of selecting feedlines,  why do we use hardline (other
>than less loss) or double shielded jumpers for connections etc.in a duplex
>operation?

Double-shielded jumpers are needed where isolation is needed between TX & 
RX (duplexer jumpers & RX/TX connections to the duplexer).  From the 
duplexer antenna connector onward to the antenna, the TX & RX are already 
combined.  What's important there is linearity.  RG-214 is double-shielded, 
but it's also silver plated (or supposed to be, some '214-type' cable 
isn't).  Hardline has a solid outer conductor with no intermittent/point 
contacts to generate IMD, so it's also extremely linear.

Bob NO6B






 
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Re: [Repeater-Builder] Help / suggestion needed...feedback? on Mitrek

[Stephen Rice]

Scott this may have nothing to do with it but I have a similar problem with 
a micor repeater and ICS M controller. It caused me to keep checking audio 
circuits etc looking for the problem. I then discovered that when I turned 
the power control down to a certain spot the problem would start and when I 
increased power it went away. Seems that the power control being at a point 
caused oscillation. Like I say made a heck of a noise and would stop and 
start whenever it wanted( usually when it IDed). I have yet not been able to 
figure why it does it as I retuned the final. I will be watching to see what 
others might have for suggestions to.
Steve

- Original Message - 
From: "Scott" <[EMAIL PROTECTED]>
To: 
Sent: Friday, January 06, 2006 12:52 AM
Subject: [Repeater-Builder] Help / suggestion needed...feedback? on Mitrek


>I have a UHF repeater built out of a trunk mount Mitrek (Motrek), has
> CAT 250 controller, 3 can duplexer rated around 300W. Current output
> is about 23-25W into duplexer. No external amp. Control head is on
> radio, mic disconnected. Factory tone reed board for RX tone, TS32 for
> TX tone. Antenna good swr and condition at 150 ft feed with 1 1/4"
> heliax. 15 amp switching power supply. All controller to radio cabling
> is done inside the radio with highly sheilded cable with shield
> grounded to 12- buss inside radio. Controller is in a factory metal
> rack case.
>
> With RX tone ON (in CAT), repeater will key up and start some God
> awful squawl for about 5 seconds then unkey. Repeater is almost
> unusable when this happens, continuing to squawl when anyone tries to
> use it. Squawl continues until squelch tail ends. Sometimes a cycle
> off / on fixes it.
>
> With RX tone OFF (in CAT) the squawl usually only happens when the
> repeater kys up with voice ID, starting at the second letter of call
> and ending when ID finishes. Repeater can then be talked on
> immediately, and usually will function properly (sometimes still does
> glitch, but only for a second or two.
>
> When working properly, has one of the best RF and audio signals I have
> ever heard on a machine.
>
> Suggestions?
>
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
> 





 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[KFD29]

In a message dated 1/6/2006 9:13:32 A.M. Eastern Standard Time, 
[EMAIL PROTECTED] writes:

  First, has the system ever performed better than this at any time?  
  My next statement would be, and yes they are right about the 9913, but I 
  would have to say that 9913 has nothing to do with shield, as it is a very 
  good shielded cable, just that is presents metal to metal type substance and 
  therefore lets to much noise in, but this would not be an everyday, every 
  minute issue for the system.
So you suggest it be replaced?  or is it fine to keep?

   
  He is not far off on the distance either, I am up 130Ft in the air, 6 dB 
  gain atenna fed with 7/8" hardline, pre-amp with filters, and 8 miles is best 
  for the handheld radio for a signal that is acceptable to listen 
  to.
We are up 27.0m, but have an HAAT of 16.4m 3dB gain antenna, and you 
know the feedline :)  What could you expect our max range to be w/ 
handhelds?

   
  Is this performance the same in all directions, or is one direction 
  better than the other.  How well is the hand held getting into the 
  system?  Are they noisey, or are they just not there?  Are there 
  spots that is better than others, location wise?
Going south, where terrain stays pretty much flat (except the typical 
suburb housing of course) gets us 5 miles going north, where the land drops 
in elevation due to the river only gets us about 2miles...we seem to lose signal 
quite a bit after the "big hill" 
Both have readable audio till they drop out, after that south has no tx nor 
rx... and north has rx yet for a couple miles but no tx.

   
  Next, is there a possibility of taking the repeater to another antenna 
  and hooking it up and doing some testing.    Another quesiton 
  that was not asked, and did not see mentioned, what is the power output of the 
  hand held radios?  Are they in a building, or are they 
  outside?
5watt handhelds, we did our testing outside, but need them to work inside 
too.. someday :)

   
  Mathew

 













  




  
  
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Re: [Repeater-Builder] had a little power supply trouble the other day...

[DCFluX]

Kinda looks like my homemade 4CX250B amplifier's power supply.On 1/6/06, Buley, Kenneth L (GE Consumer & Industrial) <
[EMAIL PROTECTED]> wrote:Maybe a lesson in proper fuse sizing is in order??? Nice clip!
I think they call that a BLEVY!!!Actually, it's a BLEVE (Boiling Liquid Expanding Vapor Explosion for the non-firefighters in the group).Kenneth BuleyBullitt County EMA Deputy Director CD-2
Bullitt/Spencer Counties Red Cross ECRV Driver/Operator BC-6Bullitt County ARES/RACES Coordinator KY4DES"Dante
once said that the hottest places in hell are reserved for those who in
a period of moral crisis maintain their neutrality."Yahoo! Groups Links<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/<*> To unsubscribe from this group, send an email to:[EMAIL PROTECTED]
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Re: [Repeater-Builder] MAXAR UHF radios for link.

[Scannr]

yup they work great for linking, however you will have to build a 2 
transistor switch for COS
and and keep the heatsink cool













  




  
  
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[Repeater-Builder] Re: Repeater Assistance in Michigan.

[sgreact47]

Aside from the poor quality feed line (coax cable) the Antenex FG 
series antnnas SUCK big time, especially in duplex operation.
The FG series antennas are nothing but a 18 gauge copper coated steel 
wire with a few 'curlie cues' hidden in a plastic pipe.

Monty and I did some tests a couple years ago on the Antenex FG's, 
they ALL sucked.

Use a REAL antenna designed as a repeater/duplex antenna. The 
Comtelco and Telewave antennas are designed from the ground up to be 
used in repeater/duplex service.

The Comtelco BSL150XL3-x series are not that much more than the 
Antenex FG, and use large solid copper alloy elements. 

The best is the Telewave Blue broad band VHF base antenna, ANT140F2, 
but they cost three times as much. $600










 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Mathew Quaife]

First, has the system ever performed better than this at any time?  My next statement  would be, and yes they are right about the 9913, but I would have to say that 9913 has nothing to do with shield, as it is a very good shielded cable, just that is presents metal to metal type substance and therefore lets to much noise in, but this would not be an everyday, every minute issue for the system.     He is not far off on the distance either, I am up 130Ft in the air, 6 dB gain atenna fed with 7/8" hardline, pre-amp with filters, and 8 miles is best for the handheld radio for a signal that is acceptable to listen to.     Is this performance the same in all directions, or is one direction better than the other.  How well is the hand held getting into the system?  Are they noisey, or are they just not there?  Are there spots that is better than others, location wise?     Next, is
 there a possibility of taking the repeater to another antenna and hooking it up and doing some testing.    Another quesiton that was not asked, and did not see mentioned, what is the power output of the hand held radios?  Are they in a building, or are they outside?     Mathew     Vincent Caruso <[EMAIL PROTECTED]> wrote:  For starters dump the RG 8 Feedline and invest in some 1/2" or 7/8"Hard Line (depending on distance btwn Antenna & Repeater)Also what brand type of repeater is this?[EMAIL PROTECTED] wrote:> I'll try what Eric mentioned when I get a chance to go out to the > site... as for now, I'll try to answer Mathew's questions...>  > Antenna Height = 27.0m, rooftop tripod>
 HAAT =  16.4, elevation gains going south but drops quite a bit going north.> Gain = purchased an Antenex FG1523, 3dB Fiberglass Omni> Feedline = RG8, mentioned 9913 when I went to the shop but the coax has > no markings on it when I got it so I'm not quite sure if I got it or not :)> Power of Transmitter = 50w, 35w after duplexer> Duplexer = Sinclair MR256B*2 - Mobile Type, tuned by shop> VHF-Hi, 152.8850 & 159.5400>  > Thanks!>  > -Original Message-> From: Mathew Quaife <[EMAIL PROTECTED]>> To: Repeater-Builder@yahoogroups.com> Sent: Thu, 5 Jan 2006 18:47:36 -0800 (PST)> Subject: RE: [Repeater-Builder] Repeater Assistance in Michigan.> > It would be helpful to know how high the antenna is, gain, feedline and > power of the
 transmitter, and as Eric said, what type of duplexers, > etcAre we dealing with VHF or UHF? >  > Mathew> > > */Eric Lemmon <[EMAIL PROTECTED]>/* wrote:> > Since a repeater's range is limited *primarily* by its ability to> receive,> you should concentrate on those factors which directly affect receive> sensitivity. One of the most common problems is the use of a> duplexer that> has insufficient isolation for the combination of transmitter power and> receiver sensitivity. A transmitter PA that produces a "dirty"> signal (one> with spurs) coupled with a broadband
 receiver will require much more> isolation than a pure-carrier tube PA and a very narrow-band receiver.> > Does the range improve if you reduce transmitter power to, say, 20> watts?> Does the range improve if you remove any preamplifier on the receive> side?> Does the range improve if you put a single bandpass cavity with 1.0> dB of> insertion loss between the duplexer and the receiver? Is the duplexer> *known* to be properly tuned?> > 73, Eric Lemmon WB6FLY> > > -Original Message-> From: Repeater-Builder@yahoogroups.com> [mailto:Repeater-Builder@yahoogroups.com] On Behalf Of kfd29> Sent: Thursday, January 05, 2006 3:29 PM> To: Repeater-Builder@yahoogroups.com> Subject: [Repeater-Builder] Repeater Assistance in Michigan.> > Looking for assistance w/ a new repeater system in GR, Michigan...> Could use> a hand in finding out why we can not pick up 5 watt handhelds only 5> miles> out, maybe we missed something in setup? If anyone is knowledgable
 in> troubleshooting repeaters or in the GR area, please contact me! Small> business that can't quite afford the $70/hr charge for a tech right> now lol.> Thanks!>
	
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Jay Urish]

[EMAIL PROTECTED] wrote:
> In a message dated 1/6/2006 12:57:17 A.M. Eastern Standard Time, 
> [EMAIL PROTECTED] writes:
> 
> RG8 is not suitable for duplex operation.  There is insufficient
> shielding and will most likely result in receiver desense while the
> transmitter is operating. You might look back in the archives on the
> Repeater-Builder there has been extensive discussions about this
> problem and also on the use of 9913 for duplex operation.  As
> mentioned by others ... a change to some other type of a 100%
> shielded feedline will probably do wonders for your receive problem.
>  
> Good Luck
> Larry
> 
> Thanks for the information.  I was curious about this myself as I did 
> read a few of those prior posts... I was told different from the shop, 
> he mentioned that since my run is only about 85feet,


Whoa! Way too long... Dump it ASAP and find some 1/2 heliax or superflex.




  it should be fine.
> What is your opinion?  Should I pull it and re-run w/ a hardline, or 
> would this be sufficent for a small run?  If it should be replaced, what 
> size hardline do you suggest and will this really make a noticeable 
> difference in Rx?
>  
> I guess I decided to follow his advice since the system that was in 
> place prior to replacing it w/ my own was also run on RG8, I believe 
> Belden 8214 it said. 
>  
> Thanks again!
> 

-- 
Jay Urish W5GM
DCARA President ARRL Life Member
Denton County ARRL VEC
N5ERS VP/Trustee

Monitoring 1292.30Ghz PL-100.0  441.375 PL-88.5 and 444.850 PL-88.5




 
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Re: [Repeater-Builder] Help / suggestion needed...feedback? on Mitrek

[Jay Urish]

I am experiencing the same thing on a GR500 Motorola repeater with a 
community tone panel and a 6 cavity mobile style duplexer.


I suspect some sort of feedback.

Scott wrote:
> I have a UHF repeater built out of a trunk mount Mitrek (Motrek), has
> CAT 250 controller, 3 can duplexer rated around 300W. Current output
> is about 23-25W into duplexer. No external amp. Control head is on
> radio, mic disconnected. Factory tone reed board for RX tone, TS32 for
> TX tone. Antenna good swr and condition at 150 ft feed with 1 1/4"
> heliax. 15 amp switching power supply. All controller to radio cabling
> is done inside the radio with highly sheilded cable with shield
> grounded to 12- buss inside radio. Controller is in a factory metal
> rack case.
> 
> With RX tone ON (in CAT), repeater will key up and start some God
> awful squawl for about 5 seconds then unkey. Repeater is almost
> unusable when this happens, continuing to squawl when anyone tries to
> use it. Squawl continues until squelch tail ends. Sometimes a cycle
> off / on fixes it.
>  
> With RX tone OFF (in CAT) the squawl usually only happens when the
> repeater kys up with voice ID, starting at the second letter of call
> and ending when ID finishes. Repeater can then be talked on
> immediately, and usually will function properly (sometimes still does
> glitch, but only for a second or two.
> 
> When working properly, has one of the best RF and audio signals I have
> ever heard on a machine.
> 
> Suggestions?

-- 
Jay Urish W5GM
DCARA President ARRL Life Member
Denton County ARRL VEC
N5ERS VP/Trustee

Monitoring 1292.30Ghz PL-100.0  441.375 PL-88.5 and 444.850 PL-88.5




 
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[Repeater-Builder] MAXAR UHF radios for link.

[Bruno Bouliane]

Has anyone worked with Maxar uhf radios for linking. We're looking to install these radios as X-band transmit units for our voting system. We`re using GE Pheonix radios but would like to try True FM.. The Pheonix were convenient because they are programmable. The Maxar`s would be set up with GE MVP monitor receivers and would be hooked with flat audio straight thru to  the voting site.         Regards from Bruno Bouliane VE2VK/KD1XG.      VE2RVK repeater voting system VE2RVK/R      146.865mhz-
 141.3hz.   
		 Yahoo! DSL Something to write home about. Just $16.99/mo. or less













  




  
  
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Re: [Repeater-Builder] Re:Need to contact the moderator

[Kevin Custer]

Replied directly

Com/Rad Inc - Ed Folta wrote:

  
  
  
  I wold like to hear from the
moderator of  
  Repeater-Builder@yahoogroups.com















  




  
  
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Re: [Repeater-Builder] Re: Repeater Funding

[Dale Pratt]

His Ham License Gives him the Right to put up a tower the city Doesn't
have the right to govern comn. Only FCC. He can put a 200 ft tower if he
wants. They might require him to have insurance.
 Dale   N8SAC
   


On 1/5/06 8:34 PM, "Don" <[EMAIL PROTECTED]> wrote:

> Had a Ham in a Small Town who wanted to put up a 40 ft Tower, the
> answer was no He tried to explain PRB-1, but they did not care it
> would Be Ugly and Dangerous and the Neighbors would complain, Example,
> Nextel comes and ask the City if they can put up a 100 Ft. tower on
> the Town owned Vacant lot adjacent to the Hams property and that would
> give the Town  $ 2,000 a month rent.  Why heck Yes We would be glad to
> have You, It is what can you do for us   and how much Money, Now The
> Police and Fire 
> Who just had to get rid of their old VHF equipment and switched over
> to 800Mhz Trunking and for some reason when they get around all the
> fancy new Nextel towers their radios don't seen to work right, Well
> that's another story for another day. I hope some of the Members of
> this Group is Actually helping to educate them.  Of course this is Not
> True, I don't think in most cases
> 
> Happy Repeater Building
> 
> Don KA9QJG 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 






 
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Re: [Repeater-Builder] cleaning electronics

[Adam T. Cately]

At 04:04 AM 1/5/06 -0800, you wrote:
>
>"Adam T. Cately" wrote:
>
>  ... snip ... 
>
>>(No - I'm NOT from New Jersey - I just play one on TV.)
>
>  
>

   It loses all the funny when you have to explain, but...

   In regard to the use of the made-up-word "you'se" - as in, "Hey, you'se
guys over dere needs to move dese rocks over hee-uh."

   See? - it's not funny now.

   (probably wasn't before, either)

   - Adam - 

   

  





 
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RE: [Repeater-Builder] had a little power supply trouble the other day...

[Buley, Kenneth L \(GE Consumer & Industrial\)]

Maybe a lesson in proper fuse sizing is in order??? Nice clip!
I think they call that a BLEVY!!!


Actually, it's a BLEVE (Boiling Liquid Expanding Vapor Explosion for the 
non-firefighters in the group).

Kenneth Buley
Bullitt County EMA Deputy Director CD-2
Bullitt/Spencer Counties Red Cross ECRV Driver/Operator BC-6
Bullitt County ARES/RACES Coordinator KY4DES 

"Dante once said that the hottest places in hell are reserved for those who in 
a period of moral crisis maintain their neutrality."











 
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Re: [Repeater-Builder] Repeater Assistance in Michigan.

[Larry Lockard]

Bob,

Sorry if I didn't get it right but now I am really confused  and open to
learn.


> Shielding percentage of the antenna feedline has nothing to do with duplex
> suitability.

Somewhere I am missing something If shielding doesn't play a part in the
suitability factor of selecting feedlines,  why do we use hardline (other
than less loss) or double shielded jumpers for connections etc.in a duplex
operation?

What I was refering to was mainly about desense and the use of feedlines
that do not provide proper shielding
plus ongoing discussions on the group about the noise generated by 9913 due
to dissimilar metals and flexing
and therefore not the best choice as you also pointed out.

Was my comment ..
>>As mentioned by others ... a change to
>>some other type of a 100% shielded feedline will probably do wonders for
>>your receive problem.
..wrong or just not stated properly and misleading?

What am I missing?

Thanks
Larry



- Original Message - 
From: <[EMAIL PROTECTED]>
To: 
Sent: Thursday, January 05, 2006 10:20 PM
Subject: Re: [Repeater-Builder] Repeater Assistance in Michigan.


> At 1/5/2006 21:55, you wrote:
>>I am not the most knowlegeable person but noticed a couple of comments
>>about your feel line without an explaination.
>>
>> >Feedline = RG8, mentioned 9913 when I went to the shop but the coax has
>> no markings on it when I got it so >I'm not quite sure if I got it or not
>> :)
>>
>>RG8 is not suitable for duplex operation.  There is insufficient shielding
>>and will most likely result in receiver desense while the transmitter is
>>operating. You might look back in the archives on the Repeater-Builder
>>there has been extensive discussions about this problem and also on the
>>use of 9913 for duplex operation.  As mentioned by others ... a change to
>>some other type of a 100% shielded feedline will probably do wonders for
>>your receive problem.
>>
>>Good Luck
>>Larry


>
> Shielding percentage of the antenna feedline has nothing to do with duplex
> suitability.   9913 is 100% foil shielded.  The problem is the type of
> shield metallization used.  Silver-plated RG-214 can be used but is just
> as
> lossy as RG-8, so not good for long lengths.
>
> Given your operating frequency & required cable length, I'd go with 1/2"
> Heliax or some other solid-shielded feedline.
>
> Bob NO6B
>>- Original Message -
>>From: [EMAIL PROTECTED]
>>To:
>>Repeater-Builder@yahoogroups.com
>>Sent: Thursday, January 05, 2006 8:18 PM
>>Subject: Re: [Repeater-Builder] Repeater Assistance in Michigan.
>>
>>I'll try what Eric mentioned when I get a chance to go out to the site...
>>as for now, I'll try to answer Mathew's questions...
>>
>>Antenna Height = 27.0m, rooftop tripod
>>HAAT =  16.4, elevation gains going south but drops quite a bit going
>>north.
>>Gain = purchased an Antenex FG1523, 3dB Fiberglass Omni
>>Feedline = RG8, mentioned 9913 when I went to the shop but the coax has no
>>markings on it when I got it so I'm not quite sure if I got it or not :)
>>Power of Transmitter = 50w, 35w after duplexer
>>Duplexer = Sinclair MR256B*2 - Mobile Type, tuned by shop
>>VHF-Hi, 152.8850 & 159.5400
>>
>>Thanks!
>>
>>-Original Message-
>>From: Mathew Quaife <[EMAIL PROTECTED]>
>>To: Repeater-Builder@yahoogroups.com
>>Sent: Thu, 5 Jan 2006 18:47:36 -0800 (PST)
>>Subject: RE: [Repeater-Builder] Repeater Assistance in Michigan.
>>
>>It would be helpful to know how high the antenna is, gain, feedline and
>>power of the transmitter, and as Eric said, what type of duplexers,
>>etcAre we dealing with VHF or UHF?
>>
>>Mathew
>>
>>
>>
>>Eric Lemmon <[EMAIL PROTECTED]> wrote:
>>Since a repeater's range is limited *primarily* by its ability to receive,
>>you should concentrate on those factors which directly affect receive
>>sensitivity. One of the most common problems is the use of a duplexer that
>>has insufficient isolation for the combination of transmitter power and
>>receiver sensitivity. A transmitter PA that produces a "dirty" signal (one
>>with spurs) coupled with a broadband receiver will require much more
>>isolation than a pure-carrier tube PA and a very narrow-band receiver.
>>
>>Does the range improve if you reduce transmitter power to, say, 20 watts?
>>Does the range improve if you remove any preamplifier on the receive side?
>>Does the range improve if you put a single bandpass cavity with 1.0 dB of
>>insertion loss between the duplexer and the receiver? Is the duplexer
>>*known* to be properly tuned?
>>
>>73, Eric Lemmon WB6FLY
>>
>>
>>
>>-Original Message-
>>From: Repeater-Builder@yahoogroups.com
>>[mailto:[EMAIL PROTECTED] On Behalf Of kfd29
>>Sent: Thursday, January 05, 2006 3:29 PM
>>To: Repeater-Builder@yahoogroups.com
>>Subject: [Repeater-Builder] Repeater Assistance in Michigan.
>>
>>Looking for assistance w/ a new repeater system in GR, Michigan... Could
>>use
>>a hand in finding out why

Re: [Repeater-Builder] Repeater Assistance in Michigan.

[KFD29]

In a message dated 1/6/2006 12:57:17 A.M. Eastern Standard Time, 
[EMAIL PROTECTED] writes:

  RG8 is not suitable for duplex operation.  
  There is insufficient shielding and will most likely result in receiver 
  desense while the transmitter is operating. You might look back in the 
  archives on the Repeater-Builder there has been extensive discussions about 
  this problem and also on the use of 9913 for duplex operation.  As 
  mentioned by others ... a change to some other type of a 100% shielded 
  feedline will probably do wonders for your receive problem.
   
  Good Luck
  Larry

Thanks for the information.  I was curious about this myself as I did 
read a few of those prior posts... I was told different from the shop, he 
mentioned that since my run is only about 85feet, it should be fine.  What 
is your opinion?  Should I pull it and re-run w/ a hardline, or would this 
be sufficent for a small run?  If it should be replaced, what size hardline 
do you suggest and will this really make a noticeable difference in Rx?
 
I guess I decided to follow his advice since the system that was in place 
prior to replacing it w/ my own was also run on RG8, I believe Belden 8214 it 
said.  
 
Thanks again!













  




  
  
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