[Repeater-Builder] accepting recommendations

2006-05-07 Thread 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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[Repeater-Builder] MOTOROLA PARTS SUPPLY

2005-12-05 Thread us_communications1
I need a tu-540W for a mototola receiver, does anyone know where i may 
find one?







 
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[Repeater-Builder] trying to build my first repeater

2005-11-27 Thread us_communications1
I attempting to build my first repeater. I have always preferred to 
have the best audio quality for my equipment. My training has always 
told me that tube equipment delivers the richest/fullest audio. So I 
have been rounding up all the tube equipment I can find. The equipment 
is all motorola and the model numbers are u43ggt-1000 and u43ggv-1000. 
how do I proceed on finding the paperwork on converting these to 
repeaters?

thank you for your time.  










 
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[Repeater-Builder] Re: trying to build my first repeater

2005-11-27 Thread us_communications1
Perhaps I did not make myself clear. The repeater i am building will 
be nearly hi-fidelity audio and such is why i intend to use tube 
equipment. i worked in commercial 2 way radio in the 1960's and 
worked in broadcasting in the 1970's. tube equipment in highly 
reliable if properly maintained, which i can do. (i do admit that 
there are not to many of us left that know how to properly maintain 
electronic equipment.

i am setting this up to volunteer a system for an group.

--- In Repeater-Builder@yahoogroups.com, Bob M. [EMAIL PROTECTED] 
wrote:

 Your training and preference are great for hi-fi audio
 equipment, but repeaters are optimized for weak
 signals with voice only, and as such, fidelity is not
 one of their strong points. 50 - 3500 Hz is about the
 limit, and the user radios will make it sound even
 worse.
 
 Today's solid-state communications equipment far
 surpasses the older tube stuff as far as reliability,
 durability, and ease of getting replacement parts when
 needed. A lot of today's radios don't even need to be
 tuned - they're wide-band but still quite selective
 and more sensitive than the tube radios ever could
 hope to be.
 
 There's a ton of good repeater-building information
 over on www.repeater-builder.com and you would spend
 less time reading it than you would trying to make
 those old U43GG? radios perform the continuous duty
 cycle required of repeaters.
 
 Bob M.
 ==
 --- us_communications1 [EMAIL PROTECTED]
 wrote:
 
  I attempting to build my first repeater. I have
  always preferred to 
  have the best audio quality for my equipment. My
  training has always 
  told me that tube equipment delivers the
  richest/fullest audio. So I 
  have been rounding up all the tube equipment I can
  find. The equipment 
  is all motorola and the model numbers are
  u43ggt-1000 and u43ggv-1000. 
  how do I proceed on finding the paperwork on
  converting these to 
  repeaters?
  
  thank you for your time.
 
 
   
 __ 
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 Access over 1 million songs. Try it free. 
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[Repeater-Builder] Re: trying to build my first repeater

2005-11-27 Thread us_communications1
the fact that they are mobiles and the design of the power supply 
make little difference an any piece of equipment can be re-engineered 
to perform a needed task. all that is needed is time and ability.
simultaneous transmit and receive will be addressed by seperate 
antennas. 

WHAT I AM LOOKING FOR IS DIRECTION OF HOW OTHERS DID THIS. the radios 
are 30+ years old so i can't believe that i am the first to think of 
using the higer quality tube equipment. this equipment is very 
expensive and i was fortunate to have it donated to the non-profit 
group i am working with.



--- In Repeater-Builder@yahoogroups.com, Neil McKie [EMAIL PROTECTED] 
wrote:

 
   Well, it is like this ... 
 
 us_communications1 wrote:
  
  I attempting to build my first repeater. I have always preferred 
  to have the best audio quality for my equipment. My training has 
  always told me that tube equipment delivers the richest/fullest 
  audio. So I have been rounding up all the tube equipment I can 
  find. The equipment is all motorola and the model numbers are 
  u43ggt-1000 and u43ggv-1000.  how do I proceed on finding the 
  paperwork on converting these to repeaters?
 
   1) those are mobiles 
   2) are not designed to power the receiver and the transmitter 
  simultaneously
   3) power supply is not desigend for continuous duty transmit. 
   4) transmitter would need a serious air flow to keep it cool. 
 
   Based on items 1), 2), 3)  4) above, I would suggest you not 
  attempt to make a repeater out of those radios. 
 
   That should get you started. 
 
   Neil - WA6KLA 
 
 
  thank you for your time.
 












 
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