Re: [Repeater-Builder] Amateur Mobiles as Repeaters, Part 13

2008-02-25 Thread no6b
At 2/25/2008 20:24, you wrote:

>Guys,
>
>We heard from Skipp that the Kenwood TM-271A is very much up to the
>task of repeater service. What about other amateur 2m rigs? Anyone had
>good long-term success with anything else? Especially shielding,
>presence of logic and audio signals without butchering the radio
>(installing an option cable isn't butchering, cutting traces and
>soldering in here and there is), and a PA that doesn't melt down even
>when run at much lower power with a fan?

Kenwood TR-7950.  I had one plugged straight into a Yagi @ 5700 ft. for 
many years & never one burst of IMD.  RX was sensitive enough to outperform 
a co-located 440 RX with GaAsFET preamp (foliage absorption was the likely 
reason for the difference in performance).  The RFPA is able to handle 
continuous duty but does need a fan.  There are also pots on the RFPA board 
that can get dirty & can cause the output to drop & go spurious.

Bob NO6B



Re: [Repeater-Builder] Amateur Mobiles as Repeaters, Part 13

2008-02-25 Thread res1q6fs
Because we really had little experience in repeaters at the time (late 1970's), 
our club used a ICOM 22A for many years as the repeater receiver. We just poked 
around and found a signal that looked like it was useable to control the COR 
and used the front panel volume and squelch controls for the repeater audio and 
squelch levels. No one ever noticed we were using a mobile rig for over 15 
years. It finally bit the dust after a lightening bolt (we theorized). But for 
many years, it was as sensitive as any thing I have seen. Not bothered by 
intermod, etc. 

Roger W5RD
Texas Instruments ARC
Murphy, Texas

  - Original Message - 
  From: Cort Buffington 
  To: Repeater-Builder@yahoogroups.com 
  Sent: Monday, February 25, 2008 10:24 PM
  Subject: [Repeater-Builder] Amateur Mobiles as Repeaters, Part 13


  Guys,

  We heard from Skipp that the Kenwood TM-271A is very much up to the 
  task of repeater service. What about other amateur 2m rigs? Anyone had 
  good long-term success with anything else? Especially shielding, 
  presence of logic and audio signals without butchering the radio 
  (installing an option cable isn't butchering, cutting traces and 
  soldering in here and there is), and a PA that doesn't melt down even 
  when run at much lower power with a fan?

  73 DE N0MJS

  --
  Cort Buffington
  H: +1-785-838-3034
  M: +1-785-865-7206



   


--


  Internal Virus Database is out-of-date.
  Checked by AVG Free Edition. 
  Version: 7.5.516 / Virus Database: 269.19.9/1239 - Release Date: 1/23/2008 
10:24 AM


[Repeater-Builder] Amateur Mobiles as Repeaters, Part 13

2008-02-25 Thread Cort Buffington
Guys,

We heard from Skipp that the Kenwood TM-271A is very much up to the  
task of repeater service. What about other amateur 2m rigs? Anyone had  
good long-term success with anything else? Especially shielding,  
presence of logic and audio signals without butchering the radio  
(installing an option cable isn't butchering, cutting traces and  
soldering in here and there is), and a PA that doesn't melt down even  
when run at much lower power with a fan?

73 DE N0MJS


--
Cort Buffington
H: +1-785-838-3034
M: +1-785-865-7206