-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Yahoo
Sent: Sunday, March 18, 2007 11:01 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] TKR-750 P/A Failures
Absolutely correct Eric. The TKR-750 comes factory tuned for wideband base
station operation
Gareth Bennett wrote:
Interestingly we replaced the -750 with a Vertex VXR-9000 repeater
and commissioning tests revealed about 3 dB better sensitivity than
the 750's for 12dB Sinad.
Hmmm-you might check effective sensitivity with the antenna connected,
etc, and see what you get.
---
Jim
the system.
73, Eric Lemmon WB6FLY
-Original Message-
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Gareth Bennett
Sent: Monday, March 19, 2007 3:35 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] TKR-750 P/A Failures
Thanks
Gareth,
Don't know about the 750 but Kenwood replaced all five PA in my TKR-850
trunk system, paid the labor and everything. All I paid was a penny each
for the parts.
Paul
_
From: Repeater-Builder@yahoogroups.com
[mailto:[EMAIL PROTECTED] On Behalf Of Gareth Bennett
Sent:
Gareth,
Email me off the list with the serial number and i will see if we can get it
covered under warranty for you.
Mike
-- Original message --
From: Gareth Bennett [EMAIL PROTECTED]
Hi Group,
Can anybody out there enlighten me on the power amp failures on the
Gareth,
Your statement about the receive sensitivity caught my eye. I have to
wonder: Was the front end of your repeater's receiver ever aligned for
optimum sensitivity on your RX channel? Of the several TKR-750 repeaters I
have worked on over the years, only one of them was properly adjusted
At 04:09 AM 3/18/2007, you wrote:
Hi Group,
Can anybody out there enlighten me on the power amp failures on
the earlier Kenwood TKR-750 Repeaters? I recall that Kenwood was
scrambling around changing these under warranty when the 750 was
first released.
I have just removed one from
, March 18, 2007 9:51 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] TKR-750 P/A Failures
Gareth,
Your statement about the receive sensitivity caught my eye. I have to
wonder: Was the front end of your repeater's receiver ever aligned for
optimum sensitivity on your RX
, March 18, 2007 11:01 AM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] TKR-750 P/A Failures
Absolutely correct Eric. The TKR-750 comes factory tuned for wideband base
station operation. The TKR-750 does NOT like anything but a good 50ohm load.
The transmitter will go spurious. I
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