[Repeater-Builder] Portable Repeaters

[Paul Yonge]

I've not been too successful in convincing the various Upstate New  
York Amateur Radio Associations that simplex repeaters are the answer  
for providing portable repeaters in critical incident response  
situations. They are relying on the fixed repeaters to provide  
adequate coverage but there are areas where it would be advantageous  
to bring the repeater to the incident instead of trying to reach  
fixed repeaters with hand-held units from some isolated locations.  
There are, of course, coordination problems with portable duplex  
repeaters and there is no apparent interest in agreeing on a wide- 
split pair of odd frequencies to avoid the conventional-frequency pairs.

What experience has there been with the use of portable cross-band  
repeaters to enable hand-held units using a 440 MHz simplex channel  
to reach the portable repeater that will relay the message through to  
a two-meter fixed repeater?

Paul Yonge, W2ARK
MIDLAKES REPEATER

[EMAIL PROTECTED]




 
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Re: [Repeater-Builder] Re: accepting recommendations

[[EMAIL PROTECTED]]

Have one for me while you're there - It looks like I'll have to miss this year  
:-(

But I do keep checking the airfare websites every day just in case - I look at 
fares to Dayton, Columbus, Cincinnati, Louisville, etc.  No reasonable airfares 
to be found (I've been checking every day since before the beginning of the 
year). Hopefully next year!

LJ


>
>Very true... 
>cheers,
>skipp 
>
>ps: I can almost smell those Dayton Brauts... 





 
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[Repeater-Builder] Re: Uniden ARU251 Repeater

[skipp025]

> Johnny <[EMAIL PROTECTED]> wrote:
> Setting the transmit freq on an Aru251 is a process.

Very true.. a long one at that... at least to do it right. 

> Once you power it up, it takes about an hour for the 
> crystal oven to really stabilize.

It's actually just some piggy back parts on the crystal, 
not a complete oven.  I'd give it at least a few hours 
warm up after a few different long term power on/off 
cycles.  The new crystals will drift quite a bit and settle 
down after some power cycles have occured and you've 
let it sit on for a few hours min. 

> After each adjustment , key it a few times and let 
> it set for a few minutes.

Operation of the transmitter shouldn't really change the 
actualy TX Crystal frequency, just the temp of the tx rf 
power amp heat sink. 

cheers,
skipp 








 
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[Repeater-Builder] Re: accepting recommendations

[skipp025]

Hi Larry, 

> "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
> and has even done some of these things like changed out 
> some of the "lifetime warranty" Permakay filters in years 
> past 

One of Motorhead's better foot in mouth offers. "Lifetime 
Warranty on Permakays".  In the late 80's we still had guys 
walk in off the streets trying to get the filters replaced 
free. 

> (but going from wideband to narrowband filters - not 
> the other way around!) 

Doesn't make much sense, but I have seen it done and I've 
been involved with a wideband remote or two used at the 
local flame thrower stations for traffic reports. 

> There are no vacant 2-Meter pairs in this big city area, 

Regardless of what anyone says or does, there are always 
repeater pairs available in most any location.  Two guys 
with 10 minutes total daily use don't justify holding down 
a repeater pair when 35 plus people want to use it the other 
23 hours. You just have to find the silly empire repeater 
operators and figure a way to work something in. Most often 
things end up in a big war... but well planned co-channel 
operation can and should happen in crowed conditions. Not 
to mention the non standard repeater pairs. 

> and even if this was something that was legal to do (it 
> isn't, of course), he'd be on a 20+ year waiting list 
> for a channel to become available. And it certainly 
> would not be a "Wideband" channel. 

Please see my above comments... 

> It certainly takes all kinds - we see it right here on 
> this list, sometimes!
> LJ 

Very true... 
cheers,
skipp 

ps: I can almost smell those Dayton Brauts... 







 
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Re: [Repeater-Builder] Re: accepting recommendations

[[EMAIL PROTECTED]]

I spoke with the Chief Engineer of the radio station where this volunteer 
"helper" wants to build this "Hi-Fi" Ham Band 2-Meter Repeater for a "link" for 
the local FM Stereo station. This situation came up some months ago, and should 
have died by now, but it seems to have appeared again. He tells me that trying 
to reason with this stubborn guy is just absolutely impossible - he has his 
mind made up that he's going to do this project, this way, and that the Chief 
Engineer has no idea what is going on regarding building Repeaters, when he in 
fact has a very well designed, excellent performing 2-Meter, UHF and 6-Meter 
Repeater system (with additional internet and RF links, etc.) He knows what's 
going on when it comes to building Repeaters, and has even done some of these 
things like changed out some of the "lifetime warranty" Permakay filters in 
years past (but going from wideband to narrowband filters - not the other way 
around!) 

There are no vacant 2-Meter pairs in this big city area, and even if this was 
something that was legal to do (it isn't, of course), he'd be on a 20+ year 
waiting list for a channel to become available. And it certainly would not be a 
"Wideband" channel. 

It certainly takes all kinds - we see it right here on this list, sometimes!

LJ




-Original Message-
>From: skipp025 <[EMAIL PROTECTED]>
>Sent: May 7, 2006 7:21 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Re: accepting recommendations
>
>> "us_communications1" <[EMAIL PROTECTED]> wrote:
>> Good Afternoon Gentlemen,
>
>just the above scares half of us away... 
>
>> I am looking to build a hi-fi quality audio repeater to 
>> feed audio for remote broadcasts of a non-commercial radio 
>> station which has been greatly annoying, 
>
>"greatly annoying"..?
>
>You, the remote broadcasts or the fact that you're on a 
>non commercial radio station?
>
>> as I need a specific IF filter for a motorola receiver 
>> a tu-540w and I have been unable to find the filter. 
>
>You probably won't find a plug and play or drop in replacement 
>filter.  But you need to be more specific...  do you want to 
>do standard voice remotes as in typical short traffic reports?
>... or do you want to do extended voice broadcasts with possible 
>other source material added in.   The former is easily done 
>with standard wideband fm radios, the other is more often done 
>with wide bandwidths. 
>
>> In addition, the chief engineer for the station has been 
>> completely un-helpful. 
>
>It's probably not something he's been required to do in past. 
>And he may not be honestly interested in doing one now. 
>
>> While I am not an amateur radio operator, I am building this 
>> repeater for amateur radio use on the 144-148 mc band and the 
>> engineer of the station claims he has an amateur radio license, 
>> but i am beginning to have my doubts and the engineer has not 
>> been supportive of building a hi-fi audio repeater. 
>
>As wacky as your post reads, I'd also probably have doubts 
>about helping you with a hi-fi audio repeater. "Hi-Fi" and 
>"repeater" don't normally get used in the same sentence. You 
>haven't been clear about what type of material (content) to 
>be sent through this magic box. 
>
>> how can i confirm if the engineer has a amateur radio 
>> license? 
>
>www.qrz.com   Would an Amateur License be required to build 
>a repeater?   I wouldn't think so, although it would be handy. 
>
>> is there a listing of engineers and what licenses they 
> have? 
>
>God I hope not...  and no I don't think so. 
>
>> i went through a lot of trouble to find the older tube 
>> type equipment to build this hi-fi quality audio repeater 
>> and want to make it work to serve the non-commercial fm 
>> station. 
>
>In the 144-148 MHz band?  Tube type equipment you think will 
>have better audio than some of the newer stuff?  Some of the 
>group readers are falling back over in their chairs reading 
>what you're trying to do...  and how you're going about it. 
>
>> what suppliers carry older motorola radio parts?
>
>No suppliers really, but there are at least 12 full size 
>battleship loads of surplus NOS Motorola Parts, which have 
>not yet made it to the recycler or landfill.  You're going 
>to have to do some flea markets (Like the Dayton Hamvention) 
>and a lot of searching around. 
>
>When you come back down to the real world, ask companies 
>like Comm-Spec if they have anything close in their crystal 
>filter retrofit kits. Otherwise it's not that hard to make 
>filters. 
>
>Life goes on... 
>skipp 
>
>
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>
>





 
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[Repeater-Builder] Re: accepting recommendations

[skipp025]

> "us_communications1" <[EMAIL PROTECTED]> wrote:
> Good Afternoon Gentlemen,

just the above scares half of us away... 

> I am looking to build a hi-fi quality audio repeater to 
> feed audio for remote broadcasts of a non-commercial radio 
> station which has been greatly annoying, 

"greatly annoying"..?

You, the remote broadcasts or the fact that you're on a 
non commercial radio station?

> as I need a specific IF filter for a motorola receiver 
> a tu-540w and I have been unable to find the filter. 

You probably won't find a plug and play or drop in replacement 
filter.  But you need to be more specific...  do you want to 
do standard voice remotes as in typical short traffic reports?
... or do you want to do extended voice broadcasts with possible 
other source material added in.   The former is easily done 
with standard wideband fm radios, the other is more often done 
with wide bandwidths. 

> In addition, the chief engineer for the station has been 
> completely un-helpful. 

It's probably not something he's been required to do in past. 
And he may not be honestly interested in doing one now. 

> While I am not an amateur radio operator, I am building this 
> repeater for amateur radio use on the 144-148 mc band and the 
> engineer of the station claims he has an amateur radio license, 
> but i am beginning to have my doubts and the engineer has not 
> been supportive of building a hi-fi audio repeater. 

As wacky as your post reads, I'd also probably have doubts 
about helping you with a hi-fi audio repeater. "Hi-Fi" and 
"repeater" don't normally get used in the same sentence. You 
haven't been clear about what type of material (content) to 
be sent through this magic box. 

> how can i confirm if the engineer has a amateur radio 
> license? 

www.qrz.com   Would an Amateur License be required to build 
a repeater?   I wouldn't think so, although it would be handy. 

> is there a listing of engineers and what licenses they 
 have? 

God I hope not...  and no I don't think so. 

> i went through a lot of trouble to find the older tube 
> type equipment to build this hi-fi quality audio repeater 
> and want to make it work to serve the non-commercial fm 
> station. 

In the 144-148 MHz band?  Tube type equipment you think will 
have better audio than some of the newer stuff?  Some of the 
group readers are falling back over in their chairs reading 
what you're trying to do...  and how you're going about it. 

> what suppliers carry older motorola radio parts?

No suppliers really, but there are at least 12 full size 
battleship loads of surplus NOS Motorola Parts, which have 
not yet made it to the recycler or landfill.  You're going 
to have to do some flea markets (Like the Dayton Hamvention) 
and a lot of searching around. 

When you come back down to the real world, ask companies 
like Comm-Spec if they have anything close in their crystal 
filter retrofit kits. Otherwise it's not that hard to make 
filters. 

Life goes on... 
skipp 







 
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Re: [Repeater-Builder] Mastr III HB station

[Doug Bade]

Kevin;
 The Mastr III station manuals currently document the process 
of hooking an external controller to a Mastr III. If it truly is a 
Mastr III as opposed to a Mastr IIe there is a quite a 
difference. I would suggest you get a manual for it and it should 
have the interface in it, it may even be in one of the LBI's here in 
the repository of GE stuff.. The documentation dates back to Ericsson 
era Mastr III stations.

The Mastr III stations are not known for moving out of band well... 
if it is a high split it will require some work to get it to 2 
meters.. The controller interface is probably the least of your 
worries I would make sure the RF part is going to cooperate as it 
is not just a matter of plug and tune

The Mastr IIe  ( which is a hybrid Mastr II with a Mastr III control 
shelf is another matter.
It is much easier to work with...

Doug
KD8B



At 09:27 PM 5/7/2006, you wrote:
>Thanks Steve, but that is not an option for us. It does not offer 
>enough functionality in our situation. We have a S-Com 7K that will 
>be connected to it. Thanks again,
>
>Kevin, K9HX
>
>At 09:21 PM 5/7/2006, you wrote:
>>I would very strongly (almost to caps) recommend you use the built 
>>in controller inherent in the M3.  You get hang time, time out 
>>timer, dtmf on/off, and morse id just by programming.  We have had 
>>one in service , W5LM for 6 or 7 years with one PA driver module 
>>failure.  Best luck,  Steve NU5D
>>
>>
>>
>>On 5/7/06, Kevin Berlen, K9HX <[EMAIL PROTECTED]> 
>>wrote:
>>Our club has located a surplus Mastr III base station,
>>and I am looking for info on interfacing an external
>>controller to it. TIA and 73,
>>Kevin, K9HX






 
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Re: [Repeater-Builder] missing posts

[Chuck Kelsey]

Yahoo was acting up.

Chuck
WB2EDV




- Original Message - 
From: "skipp025" <[EMAIL PROTECTED]>
To: 
Sent: Sunday, May 07, 2006 9:41 PM
Subject: [Repeater-Builder] missing posts


>I sent a few replies and posts to the group on Thursday, 
> Friday and Sat... Never saw them in the message list.  
> Some moderator doesn't like me or Yahoo had a bad hair 
> day?  
> 
> skipp 
> 
> 
> 
> 
> 
> 
> 
> 
> Yahoo! Groups Links
> 
> 
> 
> 
> 
> 
> 
>





 
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[Repeater-Builder] missing posts

[skipp025]

I sent a few replies and posts to the group on Thursday, 
Friday and Sat... Never saw them in the message list.  
Some moderator doesn't like me or Yahoo had a bad hair 
day?  

skipp 







 
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[Repeater-Builder] Re: Uniden ARU251 Repeater

[skipp025]

Yes, I've put the Manual for the ARU-251k Repeater up 
for free download on the www.radiowrench.com/sonic 
web page. Also the ARH-351 VHF Repeater Manual. 

If everything is working, you need to install the crystal 
into the heater module, seat the crystal pins into the 
exciter board and provide power for at least 3 or 4 hours 
before you do a frequency setting. If it's a new crystal, 
I'd give it at least 24 hours warmup as new crystals in 
heaters tend to settle in a different final place after the 
first heat cycle.   Anyway, you need to let the repeater 
set for at least 3 to 4 hours before you even think about 
aligning it on a frequency. I still hold out for the 24 hour 
span. 

How timely someone is working on this model repeater. I'm 
doing one for Sal right now and it's been a bear.  

I had a problem with low tx drive/output... after much head 
scratching I found the TX Crystals were cut wrong. The TX 
xtal is a standard divide by 12 - third overtone type in the 
12.5 MHz Range. The xtals we received from Bomar were divide 
by 9 - third overtone at 18 MHz.  Funny thing is they worked 
sometimes... but then the drive would go away in one of the 
tx stages.  Bomar being first rate is cutting new crystals for 
free.  The only way to check the crystal type is to have an 
oscillator test circuit with a matching counter. A nice feature 
built into my Sencore Desktop Counter... 

If the guy is confused about the duplexer adjustment, jerk 
the entire package back from him and find help elsewhere. 

I've put the GE MVP Phelps Dodge Flat Pack duplexer instructions 
up on the sonic page.  The PD_7560.pdf  file. 

Anyway, lots of time... the manual and a lot of questions over 
here on the group should help get you straightend out. Since 
I've had my nose in 5 Uniden Repeaters in the last two months 
I can almost answer questions on the fly...   

Like any repeater of that type/generation... they can get a 
bad rap because someone doesn't have all the proper info. For 
what they are, they're not really that back a box... 

cheers,
skipp 


> "bama_guy1965" <[EMAIL PROTECTED]> wrote:
> Im having trouble getting my repeater to stay on frequency I was 
> wondering if it may be the crystal or has the duplexer been tuned 
> wrong it was professionally done supposedly the frequency is 462.550 
> and it shows up on freq counter  as 465.5456 can somebody offer any 
> suggestions on what I can do,the first transmit crystal I bought was 
> off frequency according to the radio shop,and he tried to tune the 
> duplexer for that but didnt specify how much it was off frequency, but 
> I re-ordered another which should have been ok that why I was 
> wondering if her retuned the duplexer for what I needed any help would 
> be appreciated im still new at the repeater game
>







 
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Re: [Repeater-Builder] Mastr III HB station

[Kevin Berlen, K9HX]

Thanks Steve, but that is not an option for us. It does not offer enough
functionality in our situation. We have a S-Com 7K that will be connected
to it. Thanks again,
Kevin, K9HX
At 09:21 PM 5/7/2006, you wrote:
I would very strongly (almost to
caps) recommend you use the built in controller inherent in the M3. 
You get hang time, time out timer, dtmf on/off, and morse id just by
programming.  We have had one in service , W5LM for 6 or 7 years
with one PA driver module failure.  Best luck,  Steve NU5D


 
On 5/7/06, Kevin Berlen, K9HX
<[EMAIL PROTECTED]> wrote: 


Our club has located a surplus Mastr III base station,

and I am looking for info on interfacing an external 

controller to it. TIA and 73,

Kevin, K9HX




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-- 
Ham Radio Spoken Here.NU5D 




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Re: [Repeater-Builder] Mastr III HB station

[Steve Bosshard (NU5D)]

But, if you just have to do it.  Contact Zetron for their wiring list to connect their out board multi tone repeater controller.  Also you will find the CG decoder gets talked down by HAM talkies, most do not filter audio below 300 hz, and that with excessive deviation will talk down the GE decoder.  There is a software flash code that will fix this problem, until you reprogram the repeater, then you will need to flash it again.  ssb

 
On 5/7/06, Steve Bosshard (NU5D) <[EMAIL PROTECTED]> wrote:


I would very strongly (almost to caps) recommend you use the built in controller inherent in the M3.  You get hang time, time out timer, dtmf on/off, and morse id just by programming.  We have had one in service , W5LM for 6 or 7 years with one PA driver module failure.  Best luck,  Steve NU5D 


 
On 5/7/06, Kevin Berlen, K9HX <[EMAIL PROTECTED]> wrote:
 
Our club has located a surplus Mastr III base station,and I am looking for info on interfacing an external 
controller to it. TIA and 73,Kevin, K9HXYahoo! 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:    
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-- Ham Radio Spoken Here.NU5D -- Ham Radio Spoken Here.NU5D 














  




  
  
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Re: [Repeater-Builder] Mastr III HB station

[Steve Bosshard (NU5D)]

I would very strongly (almost to caps) recommend you use the built in controller inherent in the M3.  You get hang time, time out timer, dtmf on/off, and morse id just by programming.  We have had one in service , W5LM for 6 or 7 years with one PA driver module failure.  Best luck,  Steve NU5D

 
On 5/7/06, Kevin Berlen, K9HX <[EMAIL PROTECTED]> wrote:
Our club has located a surplus Mastr III base station,and I am looking for info on interfacing an external
controller to it. TIA and 73,Kevin, K9HXYahoo! 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/-- Ham Radio Spoken Here.NU5D 














  




  
  
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[Repeater-Builder] Mastr III HB station

[Kevin Berlen, K9HX]

Our club has located a surplus Mastr III base station,
and I am looking for info on interfacing an external
controller to it. TIA and 73,

Kevin, K9HX





 
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RE: [Repeater-Builder] Re: Uniden ARU251 Repeater

[Eric Lemmon]

Johnny,

The transmit crystal in your repeater is supposed to operate at a regulated
temperature of about 176 degrees Fahrenheit, or about 80 degrees Celsius.
The crystal should be ordered for operation at that temperature.  If the
radio shop technician disconnected the heater resistor but installed the
correct (oven-rated) crystal, it will be *way* off frequency.  The heated TX
crystal is mandatory, in order to achieve the +/- 2.5 PPM stability
specified by Uniden.  Note that the receive crystal has a heater that kicks
in only when the ambient temperature falls below about 14 degrees F.

The TX crystal heater is a 47-ohm 2 watt resistor.  Once it is installed and
working correctly, wait at least five minutes after turning on the radio
before attempting to tune the TX frequency.  I'd let it settle for a
half-hour or more.

73, Eric Lemmon WB6FLY


-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of bama_guy1965
Sent: Sunday, May 07, 2006 2:46 PM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Re: Uniden ARU251 Repeater

---well I checked the crystal htr and I suspected he d/c the thing 
and I have no idea where to reinstall it. I didn't see anything on 
the diagram where you can do it, but I have a manual here I will find 
in min but I bet that's the reason why my transmit is drifting off.

Johnny






 
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[Repeater-Builder] Re: Uniden ARU251 Repeater

[bama_guy1965]

---aloso according to the radio shop he stated when I called last 
week the repeater was in not so good condition but it was working 
fine when I bought it and the guy never said a word about anything 
being wrong with it when he recrystalled it or tuned the 
duplexersounds like he is out for money In Repeater-
[EMAIL PROTECTED], Johnny <[EMAIL PROTECTED]> wrote:
>
> Skipp has a downloadzble copy on his site:
> http://www.radiowrench.com/sonic
> 
> There is also a hardcopy up for bid on ebay.
> Johnny
> 
> 
> Al wrote:
> 
> > Do you have a manual for repeater? There was a site for the 
manual posted 
> > before. If you can not find it I still might have it somewhere. 
Contact me 
> > off the list if you can't find it. There are heaters for the 
crystals and if 
> > they are not working it will drift. The heating was by what 
looked like a 5 
> > watt resistor clamped to the crystal.
> > 
> > - Original Message - 
> > From: "bama_guy1965" <[EMAIL PROTECTED]>
> > To: 
> > Sent: Saturday, May 06, 2006 3:19 PM
> > Subject: [Repeater-Builder] Uniden ARU251 Repeater
> > 
> > 
> > 
> >>Im having trouble getting my repeater to stay on frequency I was
> >>wondering if it may be the crystal or has the duplexer been tuned
> >>wrong it was professionally done supposedly the frequency is 
462.550
> >>and it shows up on freq counter  as 465.5456 can somebody offer 
any
> >>suggestions on what I can do,the first transmit crystal I bought 
was
> >>off frequency according to the radio shop,and he tried to tune 
the
> >>duplexer for that but didnt specify how much it was off 
frequency, but
> >>I re-ordered another which should have been ok that why I was
> >>wondering if her retuned the duplexer for what I needed any help 
would
> >>be appreciated im still new at the repeater game
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> > 
> > 
> > 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > 
> >  
> > 
> > 
> > 
> >
>









 
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[Repeater-Builder] Re: Uniden ARU251 Repeater

[bama_guy1965]

---well I checked the crystal htr and I suspected he d/c the thing 
and I have no idea where to reinstall it I didnt see any thing on 
the diagram where you can do it but I have a manual here I will find 
in min but Ibet thats the reason why my transmit is drifting off In 
Repeater-Builder@yahoogroups.com, Johnny <[EMAIL PROTECTED]> wrote:
>
> Skipp has a downloadzble copy on his site:
> http://www.radiowrench.com/sonic
> 
> There is also a hardcopy up for bid on ebay.
> Johnny
> 
> 
> Al wrote:
> 
> > Do you have a manual for repeater? There was a site for the 
manual posted 
> > before. If you can not find it I still might have it somewhere. 
Contact me 
> > off the list if you can't find it. There are heaters for the 
crystals and if 
> > they are not working it will drift. The heating was by what 
looked like a 5 
> > watt resistor clamped to the crystal.
> > 
> > - Original Message - 
> > From: "bama_guy1965" <[EMAIL PROTECTED]>
> > To: 
> > Sent: Saturday, May 06, 2006 3:19 PM
> > Subject: [Repeater-Builder] Uniden ARU251 Repeater
> > 
> > 
> > 
> >>Im having trouble getting my repeater to stay on frequency I was
> >>wondering if it may be the crystal or has the duplexer been tuned
> >>wrong it was professionally done supposedly the frequency is 
462.550
> >>and it shows up on freq counter  as 465.5456 can somebody offer 
any
> >>suggestions on what I can do,the first transmit crystal I bought 
was
> >>off frequency according to the radio shop,and he tried to tune 
the
> >>duplexer for that but didnt specify how much it was off 
frequency, but
> >>I re-ordered another which should have been ok that why I was
> >>wondering if her retuned the duplexer for what I needed any help 
would
> >>be appreciated im still new at the repeater game
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> > 
> > 
> > 
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > 
> >  
> > 
> > 
> > 
> >
>








 
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<*> To visit your group on the web, go to:
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Re: [Repeater-Builder] Uniden ARU251 Repeater

[Johnny]

Skipp has a downloadzble copy on his site:
http://www.radiowrench.com/sonic

There is also a hardcopy up for bid on ebay.
Johnny


Al wrote:

> Do you have a manual for repeater? There was a site for the manual posted 
> before. If you can not find it I still might have it somewhere. Contact me 
> off the list if you can't find it. There are heaters for the crystals and if 
> they are not working it will drift. The heating was by what looked like a 5 
> watt resistor clamped to the crystal.
> 
> - Original Message - 
> From: "bama_guy1965" <[EMAIL PROTECTED]>
> To: 
> Sent: Saturday, May 06, 2006 3:19 PM
> Subject: [Repeater-Builder] Uniden ARU251 Repeater
> 
> 
> 
>>Im having trouble getting my repeater to stay on frequency I was
>>wondering if it may be the crystal or has the duplexer been tuned
>>wrong it was professionally done supposedly the frequency is 462.550
>>and it shows up on freq counter  as 465.5456 can somebody offer any
>>suggestions on what I can do,the first transmit crystal I bought was
>>off frequency according to the radio shop,and he tried to tune the
>>duplexer for that but didnt specify how much it was off frequency, but
>>I re-ordered another which should have been ok that why I was
>>wondering if her retuned the duplexer for what I needed any help would
>>be appreciated im still new at the repeater game
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 
> 





 
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Re: [Repeater-Builder] Re: Uniden ARU251 Repeater

[Johnny]

Setting the transmit freq on an Aru251 is a process.
Once you power it up , it takes about an hour for the crystal oven to 
really stabilize.
After each adjustment , key it a few times and let it set for a few minutes.
Johnny

bama_guy1965 wrote:
> well in response I put the wrong frequency it is 462.550 that it 
> should be output but it is 5kc off at 462.5456 if that makes any 
> difference I know its driving me nuts and I keyed it off the 
> repeater itself to get a true reading anymore suggestions would be 
> appreciated--- In Repeater-Builder@yahoogroups.com, "Steve Bosshard 
> (NU5D)" <[EMAIL PROTECTED]> wrote:
> 
>>Two things come to mind.  First, it could be counting a spur - 
> 
> this might
> 
>>get past a notch duplexer - How is performance - if there is much 
> 
> power in a
> 
>>spur it should be working pretty poorly.
>>
>>Second, are you using a talkie to key the repeater - combination 
> 
> of two
> 
>>signals might cause the counter to go nuts.
>>
>>The key would be if the performance is really poor.
>>
>>gl, steve nu5d
>>
>>
>>5/6/06, bama_guy1965 <[EMAIL PROTECTED]> wrote:
>>
>>>Im having trouble getting my repeater to stay on frequency I was
>>>wondering if it may be the crystal or has the duplexer been tuned
>>>wrong it was professionally done supposedly the frequency is 
> 
> 462.550
> 
>>>and it shows up on freq counter  as 465.5456 can somebody offer 
> 
> any
> 
>>>
>>>
>>>
>>
>>
>>--
>>Ham Radio Spoken Here.NU5D
>>
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> 
>  
> 
> 
> 





 
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Re: [Repeater-Builder] Uniden ARU251 Repeater

[Al]

Do you have a manual for repeater? There was a site for the manual posted 
before. If you can not find it I still might have it somewhere. Contact me 
off the list if you can't find it. There are heaters for the crystals and if 
they are not working it will drift. The heating was by what looked like a 5 
watt resistor clamped to the crystal.

- Original Message - 
From: "bama_guy1965" <[EMAIL PROTECTED]>
To: 
Sent: Saturday, May 06, 2006 3:19 PM
Subject: [Repeater-Builder] Uniden ARU251 Repeater


> Im having trouble getting my repeater to stay on frequency I was
> wondering if it may be the crystal or has the duplexer been tuned
> wrong it was professionally done supposedly the frequency is 462.550
> and it shows up on freq counter  as 465.5456 can somebody offer any
> suggestions on what I can do,the first transmit crystal I bought was
> off frequency according to the radio shop,and he tried to tune the
> duplexer for that but didnt specify how much it was off frequency, but
> I re-ordered another which should have been ok that why I was
> wondering if her retuned the duplexer for what I needed any help would
> be appreciated im still new at the repeater game
>
>
>
>
>
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
> 





 
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<*> 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:
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Re: [Repeater-Builder] Re: Uniden ARU251 Repeater

[Steve Bosshard (NU5D)]

Yeah, 5 kc off will make it sound kinda funky, and I don't have GMRS rules in front of me but may also be out of legal tolerance.  If you are sure your counter is accurate (ck against a know to to correct source), then set the trimmer in the TX module, or see if the shop that tuned it up for you will help - pretty minor thing.  If you have new crystals, there may also be a drift problem with the crystals, also, the receive may be off as well.

 
ssb
 
On 5/7/06, bama_guy1965 <[EMAIL PROTECTED]> wrote:
well in response I put the wrong frequency it is 462.550 that itshould be output but it is 5kc off at 
462.5456 if that makes anydifference I know its driving me nuts and I keyed it off therepeater itself to get a true reading anymore suggestions would be  -- Ham Radio Spoken Here.NU5D 














  




  
  
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[Repeater-Builder] Re: Uniden ARU251 Repeater

[bama_guy1965]

well in response I put the wrong frequency it is 462.550 that it 
should be output but it is 5kc off at 462.5456 if that makes any 
difference I know its driving me nuts and I keyed it off the 
repeater itself to get a true reading anymore suggestions would be 
appreciated--- In Repeater-Builder@yahoogroups.com, "Steve Bosshard 
(NU5D)" <[EMAIL PROTECTED]> wrote:
>
> Two things come to mind.  First, it could be counting a spur - 
this might
> get past a notch duplexer - How is performance - if there is much 
power in a
> spur it should be working pretty poorly.
> 
> Second, are you using a talkie to key the repeater - combination 
of two
> signals might cause the counter to go nuts.
> 
> The key would be if the performance is really poor.
> 
> gl, steve nu5d
> 
> 
> 5/6/06, bama_guy1965 <[EMAIL PROTECTED]> wrote:
> >
> > Im having trouble getting my repeater to stay on frequency I was
> > wondering if it may be the crystal or has the duplexer been tuned
> > wrong it was professionally done supposedly the frequency is 
462.550
> > and it shows up on freq counter  as 465.5456 can somebody offer 
any
> >
> >
> >
> >
> 
> 
> 
> --
> Ham Radio Spoken Here.NU5D
>









 
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Re: [Repeater-Builder] Ericsson Mastr IIe

[Steve Bosshard (NU5D)]

Seems like the M3 bat file starts mastr.exe / M3 or something like that.  Pretty sure if you have M3 software and change the bat or just launch and read you will be ok.steve nu5d
On 5/7/06, Terry Stewardson <[EMAIL PROTECTED]> wrote:

















Can anyone help me locate a place to buy or obtain the
software to program the eeprom on the self unit of these repeaters. Just pickup
4 of these 100 watts repeaters and can't seem to locate where to obtain
the program. Or if anyone knows the were abouts of locating the utility handset
that could program these.

 

Terry Stewardson

VA3LU

 

















  




  
  
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--
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Checked by AVG Free Edition.
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Re: [Repeater-Builder] Uniden ARU251 Repeater

[Steve Bosshard (NU5D)]

Two things come to mind.  First, it could be counting a spur - this might get past a notch duplexer - How is performance - if there is much power in a spur it should be working pretty poorly.Second, are you using a talkie to key the repeater - combination of two signals might cause the counter to go nuts.
The key would be if the performance is really poor.gl, steve nu5d5/6/06, bama_guy1965 <[EMAIL PROTECTED]> wrote:
Im having trouble getting my repeater to stay on frequency I was
wondering if it may be the crystal or has the duplexer been tunedwrong it was professionally done supposedly the frequency is 462.550and it shows up on freq counter  as 465.5456 can somebody offer any 
 -- Ham Radio Spoken Here.NU5D














  




  
  
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Re: [Repeater-Builder] accepting recommendations

[Mike Morris WA6ILQ]

At 07:22 PM 05/06/06, you wrote:
>Good Afternoon Gentlemen,
>I am looking to build a hi-fi quality audio repeater to feed audio for
>remote broadcasts of a non-commercial radio station which has been
>greatly annoying, as I need a specific IF filter for a motorola
>receiver a tu-540w and I have been unable to find the filter.

Not surprising, the filter hasn't been made in over 40, maybe 50
years. And when the commercial 2-way service converted from
wideband (that's what the W in the TU540W stands for) 30 KHz
channel spacing to narrowband (15khz channel spacing) in the
late 1950s / early 60s all of the TU540W filters were replaced with
TU540S or TSN6000 filters and the W filters were tossed in the trash.

>In addition, the chief engineer for the station has been completely un-
>helpful. While I am not an amateur radio operator, I am building this
>repeater for amateur radio use on the 144-148 mc band

You plan on running remote pickup audio in the ham band?
That's VERY illegal.

There are frequencies assigned for it, and they aren't in the
144-148MHz range... Companies like Marti that make stuff
just for that use, on the assigned RPU frequencies.

Does your station have an RPU license? If so, use the frequencies
on the license and stay legal.

If not, make a smart decision and get an RPU license and be legal.
See this web page: 

>and the engineer of the station claims he has an amateur radio license,

Which he probably does not want to risk by doing something that
he knows is illegal.

>but i am beginning to have my doubts and the engineer has not
>been supportive of building a hi-fi audio repeater.

If he's a ham, and understands that you plan on running an RPU in
the ham band, then I would expect him to discourage you.

Do you really want to have the FCC bust you, him and the station
owner for running remote pickup program audio on illegal frequencies?

Maybe you should thank him for keeping you out of trouble.

Part 74 is the broadcast rules.
Part 97 is the amateur rules.
Read them here: 

>how can i confirm if the engineer has a amateur radio license?
>is there a listing of engineers and what licenses they have?

Go to this web page:  and plug
his first name, middle initial (if you know it) and last name and click
on search. Then match the address.

>i went through a lot of trouble to find the older tube type equipment

Why?  There is better stuff out there.  Look at the Marti product
line (but Marti isn't the only one out there).

You probably figured out that your radio was narrowbanded back in
the late 1950s to mid 1960s and you get to undo all that work. You
will need the radio original manual as a reference plus the narrowband kit
manual to make up a list of steps to "undo" the narrowbanding as the
IF filter is just one little part of your project. You still have to 
modify the
rest of the receiver, then you get to modify the transmitter.  Then you get
to replace every coupling or bypass electrolytic capacitor in the radio
as they dry out and change value in 30 years.  Then you get to use
modern test equipment to verify that it is technically legal to use and
at that point you will discover that the communications grade radio
has unacceptable distortion for broadcast use (translation: the
audio is so bad that you won't want to put it on the air). The you will
discover that the gear that you spent so much time and effort on
is no longer type accepted and therefore is illegal to use anyway.

>to build
>this hi-fi quality audio repeater and want to make it work to serve the
>non-commercial fm station.

Then use the frequency bands assigned for RPU use.
There is NO part in the 144-148 MHz 2m band that is legal for this.

FYI a quick google search on "RPU frequencies" shows this list:

and this one:

Use the above pages as an example of what frequencies are
legal to use in RPU service, NOT as suggested frequencies
for you to use.

And you will discover that RPUs don't use repeaters. Every
one I have seen is a simplex link. The RPU receiver is on the
station antenna tower and listens to the RPU mobile - one RF
hop - no repeater.

A repeater would just add a second distortion generating audio link
(the one from the repeater to the broadcast station location) to the
audio path.

>what suppliers carry older motorola radio parts?

If you actually end up widebanding an old Moto radio your
only hope is to find some old time ham that used to work in
commercial 2-way with a garage full of 50 year old stuff.

Lastly, your efforts may be wasted anyway.  RPUs are going to narrowerband.

 From 

 >On November 13, 2002, the FCC issued the long-awaited Report & Order
 >("R&O") to ET Docket 01-75. This rulemaking is intended to revise and
 >upd

Re: [Repeater-Builder] accepting recommendations

[Ralph Mowery]

--- us_communications1 <[EMAIL PROTECTED]>
wrote:

> Good Afternoon Gentlemen,
> I am looking to build a hi-fi quality audio repeater
> to feed audio for 
> remote broadcasts of a non-commercial radio station
> which has been 
> greatly annoying, as I need a specific IF filter for
> a motorola 
> receiver a tu-540w and I have been unable to find
> the filter. In 
> addition, the chief engineer for the station has
> been completely un-
> helpful. While I am not an amateur radio operator, I
> am building this 
> repeater for amateur radio use on the 144-148 mc
> band and the engineer 
> of the station claims he has an amateur radio
> license, but i am 
> beginning to have my doubts and the engineer has not
> been supportive of 
> building a hi-fi audio repeater. how can i confirm
> if the engineer has 
> a amateur radio license? is there a listing of
> engineers and what 
> licenses they have? i went through a lot of trouble
> to find the older 
> tube type equipment to build this hi-fi quality
> audio repeater and want 
> to make it work to serve the non-commercial fm
> station. what suppliers 
> carry older motorola radio parts?
> 
>

Just ask him what his ham call letters are. It should
be one or two letters, a number 0 to 9, and one to 3
more leters.  Then go to www.qrz.com and look them up.
 His name and address should match.  

Also as some have pointed out it is not legal to use
the ham bands to transmitt anyting other than ham
communications.



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Re: [Repeater-Builder] accepting recommendations

[Steve Bosshard (NU5D)]

www.fcc.gov/wtb or qrz.com both have data bases.  Is this application for use in the US?  I cannot imagine running program audio through a 2 Meter repeater station for broadcast applications.  There was an application some years ago where the US Army added some Ranger mobiles and M3 Low Band base stations to mix with some Collins wide band radios - +/- 15 kc deviation.  We replaced the low if filters with a capacitor and made the receiver wide open.  To get program audio you will need to remove band pass filters in the transmitter audio as well - seems like broadcast stuff goes to 20 kc or so - Carson Rule would require 40 kc of rf bandwidth on the air.  Maybe some of the hams in broadcast could help.
Steve NU5D.On 5/6/06, us_communications1 <[EMAIL PROTECTED]> wrote:
Good Afternoon Gentlemen,I am looking to build a hi-fi quality audio repeater to feed audio for
re -- Ham Radio Spoken Here.NU5D














  




  
  
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Re: [Repeater-Builder] accepting recommendations

[Paul Guello]

A licensed amateur radio operator would know that what
you are proposing is illegal.  
Also, the chief engineer of the radio station should
be doing the engineering, not you.
Remote broadcast regulations are covered by part 74 of
the FCC rules are very clear.  A license is required
and it is not allowed in the ham bands.
If you are serious about doing remote broadcasts you
will look at Marti radio equipment, Telos ISDN
equipment or Tieline POTS codecs.  These are just a
few examples.
It's also interesting that you are not willing to put
your name on your message.
Paul 

--- us_communications1 <[EMAIL PROTECTED]>
wrote:

> Good Afternoon Gentlemen,
> I am looking to build a hi-fi quality audio repeater
> to feed audio for 
> remote broadcasts of a non-commercial radio station
> which has been 
> greatly annoying, as I need a specific IF filter for
> a motorola 
> receiver a tu-540w and I have been unable to find
> the filter. In 
> addition, the chief engineer for the station has
> been completely un-
> helpful. While I am not an amateur radio operator, I
> am building this 
> repeater for amateur radio use on the 144-148 mc
> band and the engineer 
> of the station claims he has an amateur radio
> license, but i am 
> beginning to have my doubts and the engineer has not
> been supportive of 
> building a hi-fi audio repeater. how can i confirm
> if the engineer has 
> a amateur radio license? is there a listing of
> engineers and what 
> licenses they have? i went through a lot of trouble
> to find the older 
> tube type equipment to build this hi-fi quality
> audio repeater and want 
> to make it work to serve the non-commercial fm
> station. what suppliers 
> carry older motorola radio parts?
> 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> [EMAIL PROTECTED]
> 
>  
> 
> 
> 


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Re: [Repeater-Builder] accepting recommendations

[n . mckie]

  http://www.qrz.com  scroll down to Name Search ... then type in 
 the persons name. 

  Also, I believe you were looking for a Motorola Permakay TU540W 
 Filter recently. 

  I looked and I believe I still have a used one ... in the garage. 

  BTW, the remote radio repeater for the radio station does not 
 belong on the amateur radio frequency band. 

  Hope this helps, 

  Neil McKie - WA6KLA 


 Original Message 
From: [EMAIL PROTECTED]
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] accepting recommendations
Date: Sun, 07 May 2006 08:36:35 -0400

>I would go to the FCC database and plug his name in the search
>fields.
>
>
>us_communications1 wrote:
>> Good Afternoon Gentlemen,
>> I am looking to build a hi-fi quality audio repeater to feed audio
>for 
>> remote broadcasts of a non-commercial radio station which has been 
>> greatly annoying, as I need a specific IF filter for a motorola 
>> receiver a tu-540w and I have been unable to find the filter. In 
>> addition, the chief engineer for the station has been completely
>un-
>> helpful. While I am not an amateur radio operator, I am building
>this 
>> repeater for amateur radio use on the 144-148 mc band and the
>engineer 
>> of the station claims he has an amateur radio license, but i am 
>> beginning to have my doubts and the engineer has not been
>supportive of 
>> building a hi-fi audio repeater. how can i confirm if the engineer
>has 
>> a amateur radio license? is there a listing of engineers and what 
>> licenses they have? i went through a lot of trouble to find the
>older 
>> tube type equipment to build this hi-fi quality audio repeater and
>want 
>> to make it work to serve the non-commercial fm station. what
>suppliers 
>> carry older motorola radio parts?
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>  
>> Yahoo! Groups Links
>>
>>
>>
>>  
>>
>>
>>
>>   
>
>
>-- 
>No virus found in this outgoing message.
>Checked by AVG Free Edition.
>Version: 7.1.392 / Virus Database: 268.5.5/333 - Release Date:
>5/5/2006
>
>
>
>
>
> 
>Yahoo! Groups Links
>
>
>
> 
>
>






 
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Re: [Repeater-Builder] accepting recommendations

[John Place]

I would go to the FCC database and plug his name in the search fields.


us_communications1 wrote:
> Good Afternoon Gentlemen,
> I am looking to build a hi-fi quality audio repeater to feed audio for 
> remote broadcasts of a non-commercial radio station which has been 
> greatly annoying, as I need a specific IF filter for a motorola 
> receiver a tu-540w and I have been unable to find the filter. In 
> addition, the chief engineer for the station has been completely un-
> helpful. While I am not an amateur radio operator, I am building this 
> repeater for amateur radio use on the 144-148 mc band and the engineer 
> of the station claims he has an amateur radio license, but i am 
> beginning to have my doubts and the engineer has not been supportive of 
> building a hi-fi audio repeater. how can i confirm if the engineer has 
> a amateur radio license? is there a listing of engineers and what 
> licenses they have? i went through a lot of trouble to find the older 
> tube type equipment to build this hi-fi quality audio repeater and want 
> to make it work to serve the non-commercial fm station. what suppliers 
> carry older motorola radio parts?
>
>
>
>
>
>
>
>
>
>  
> Yahoo! Groups Links
>
>
>
>  
>
>
>
>   


-- 
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.1.392 / Virus Database: 268.5.5/333 - Release Date: 5/5/2006





 
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[Repeater-Builder] Ericsson Mastr IIe

[Terry Stewardson]

Can anyone help me locate a place to buy or obtain the
software to program the eeprom on the self unit of these repeaters. Just pickup
4 of these 100 watts repeaters and can’t seem to locate where to obtain
the program. Or if anyone knows the were abouts of locating the utility handset
that could program these.

 

Terry Stewardson

VA3LU

 

















  




  
  
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--
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[Repeater-Builder] Uniden ARU251 Repeater

[bama_guy1965]

Im having trouble getting my repeater to stay on frequency I was 
wondering if it may be the crystal or has the duplexer been tuned 
wrong it was professionally done supposedly the frequency is 462.550 
and it shows up on freq counter  as 465.5456 can somebody offer any 
suggestions on what I can do,the first transmit crystal I bought was 
off frequency according to the radio shop,and he tried to tune the 
duplexer for that but didnt specify how much it was off frequency, but 
I re-ordered another which should have been ok that why I was 
wondering if her retuned the duplexer for what I needed any help would 
be appreciated im still new at the repeater game











 
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[Repeater-Builder] accepting recommendations

[us_communications1]

Good Afternoon Gentlemen,
I am looking to build a hi-fi quality audio repeater to feed audio for 
remote broadcasts of a non-commercial radio station which has been 
greatly annoying, as I need a specific IF filter for a motorola 
receiver a tu-540w and I have been unable to find the filter. In 
addition, the chief engineer for the station has been completely un-
helpful. While I am not an amateur radio operator, I am building this 
repeater for amateur radio use on the 144-148 mc band and the engineer 
of the station claims he has an amateur radio license, but i am 
beginning to have my doubts and the engineer has not been supportive of 
building a hi-fi audio repeater. how can i confirm if the engineer has 
a amateur radio license? is there a listing of engineers and what 
licenses they have? i went through a lot of trouble to find the older 
tube type equipment to build this hi-fi quality audio repeater and want 
to make it work to serve the non-commercial fm station. what suppliers 
carry older motorola radio parts?









 
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RE: [Repeater-Builder] cp70-422n

[Ian Wells]

Hi again guys.
I checked the notches on each tin and they were on frequency and the markings were  the correct way around .I removed the tee piece and checked the output after the 2nd tin and  the reading was 15watt so I recheck the output with the tee back inplace and still 7-8 watt output .I adjusted the db disks on the tins and also readjusted the pa section to give max output and ended up with 14-15 watt output with -110db signal with no chopping so it must have been a combination of these things.
 

Thank You,
Ian Wells,
Kerinvale Comaudio,
www.kerinvalecomaudio.com.au
 
---Original Message---
 

From: Ian Wells
Date: 05/07/06 01:58:20
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] cp70-422n
 
The notch caps have been modified by the tech to suit the 2.5 meg split so I hope it is ok but I hope to be checking with rfs Australia on Monday but I did talk to one of their guys on Friday and they said it would work ok with the 2.5 meg split but the real expert on them wasnt available till monday .Also I hope to check it tomorrow to make sure the tech named the ports correctly  and that they arent back to front .
.The transmitter is a Philips fm828
 

Thank You,
Ian Wells,
Kerinvale Comaudio,
www.kerinvalecomaudio.com.au
 
---Original Message---
 

From: Eric Lemmon
Date: 05/07/06 01:43:50
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] cp70-422n
 
Ian,
 
The RFS/Celwave CP70-422N duplexer is a good product, but you might contact Celwave regarding the 2.5 MHz split you're using.  Some duplexer designs don't necessarily work better with wider splits.  The CP70 duplexer is specified for a 600 kHz split, and its loop settings might not be optimum for a 2.5 MHz split.  Check with Celwave Tech Support for a definitive answer.
 
Keep in mind that TX power measured into a resistive (dummy) load can be quite different when measured into a reactive (duplexer) load.  Depending upon the make and model of your PA, it may be a good idea to experiment with different jumper cable lengths between the PA and the TX input on the duplexer, or install an impedance matching device (Z-matcher) at the PA output.
 

73, Eric Lemmon WB6FLY 


From: Repeater-Builder@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Ian WellsSent: Saturday, May 06, 2006 3:00 AMTo: Repeater-Builder@yahoogroups.comSubject: [Norton AntiSpam] [Repeater-Builder] cp70-422n





 Hi guys.  I have the above diplexer and I am concerned about the amount of power loss I am getting.    I have 18watts going into the tx port on 78.1375 MHz and only 7-8 watts coming out the antenna .  Rx frequency is 80.6375 MHz.  It was tuned up by a firm here in Queensland 
 

Thank You,
Ian Wells,
Kerinvale Comaudio,
www.kerinvalecomaudio.com.au
 








 
 





















  




  
  
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