Re: [Repeater-Builder] TE Systems Amplifier

2004-01-28 Thread Jimmy Floyd 
 Sounds like an exciter problem or duplexer/cavity filter tuning drift
 problem, not an amplifier problem. (Assuming you are using a duplexer in
the
 repeater)

Using DB-4062 WBC--- 6 can BP/BR.
Tuned per specs on 01-26-04
Duplexers actually measured at 1.8 db loss after tuning. The exciter power
is correct for that particular system. The TE amplifier is a 1452  -- 
unit is in a non controlled temperature location.


 Have you checked the input power to the amp from the exciter device ??
 How are you measuring the output power in relation to the antenna ???
Before
 the duplexer or on the output of the duplexer.

Cable length, or any other changes did not affect the readings.
Power was same going direct to antenna or thru the cans. Maybe we can get
some warmer days and see what the output power change really is since the
duplexers have been retuned.


Thanks for the info.

Jimmy
NQ4U






 

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/

RE: [Repeater-Builder] TE Systems Amplifier

2004-01-27 Thread Rogers, Ron 
Sounds like an exciter problem or duplexer/cavity filter tuning drift
problem, not an amplifier problem. (Assuming you are using a duplexer in the
repeater) 

Have you checked the input power to the amp from the exciter device ?? 
How are you measuring the output power in relation to the antenna ??? Before
the duplexer or on the output of the duplexer.

Amplifiers always heat up when used so cold WX should not make it reduce in
power since the unit should be self-warming after a few minutes of
on-time. 

Ron 
-WB8ERB-

-Original Message-
From: Jimmy Floyd [mailto:[EMAIL PROTECTED]
Sent: Tuesday, January 27, 2004 8:48 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] TE Systems Amplifier


Has anyone that is using one of the TE Systems amplifiers ever had a problem
with a low power output during cold weather ?


We have one that has been running for 6 years and it seems when temp. drops
below 50 degrees F, seems the output power is lowered quite a bit. Before we
dig into the amp , I thought maybe someone on the list might have had the
same problem and found a solution.

Thanks

Jimmy Floyd
NQ4U




 

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! 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/