[1000mp] Quadra Question

Wed, 12 Mar 2003 17:21:51 -0800

Hi Bob,

The operation you describe is correct; there is no problem.

If you turn off the VL-1000 RF unit, but leave the VP-1000 PSU
powered up, the ANT1 relay (RL7001) on the ANT-SW Unit board is held
operated by default, thus maintaining the  receive signal path via the ANT1
socket. The INPUT 1/2 selection relay (RL4003)on the Divider Unit board is
non-operated, maintaining the signal path to the INPUT 1 socket.

If you power down the VP-1000, RL7001 releases and opens the receive signal
path. Therefore, you will need to leave the VP-1000 powered up to keep the
receive
signal path open. This has the added advantage that the auto-routining
feature will exercise all relays in the system for contact-wetting
(cleaning) purposes.

This information was derived from the VL-1000 Service Manual. Please check
out my Quadra page:

http://www.qsl.net/ab4oj/quadra/quadra.html

Best 73,
Adam, VA7OJ/AB4OJ
North Vancouver, BC, Canada
http://www.qsl.net/ab4oj/

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Robert Dorchuck - W6VY
Sent: Wednesday, March 12, 2003 08:35
To: [email protected]
Subject: [1000mp] Quadra Question

I was under the impression that with all power off the Input 1 and
Antenna 1 were connected to allow the use of the radio without
having power applied.

On mine I find that the power supply switch must be on to connect
the antenna to the radio.

Is this correct or do I have a problem.

Bob  W6VY

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