[1000mp] FH 1 Question

[Adam Farson]

Hi David,

The Quadra requires a tuning carrier for automatic band-setting and ATU
tuning. When the F SET or TUNE key on the Quadra is pressed, the Quadra
applies a 25.5 k-ohm closure across the tip and ring of the Remote socket.
This emulates the FH-1 TUNE key, and causes the exciter to transmit a
continuous carrier to the Quadra at the power level selected in Menu 4-3
(typ. 75W). The Quadra's controller counts the excitation frequency, and
sets the bandswitching relays and ATU accordingly.

When the band-setting or tuning cycle is complete, the Quadra will remove
the 25.5K loop, and the exciter will unkey.

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

Cheers for now, 73,
Adam VA7OJ/AB4OJ


-----Original Message-----
From: 1000mp-bounces at mailman.qth.net [mailto:1000mp-bounces at mailman.qth.net]
On Behalf Of David W Wood
Sent: 26 September 2004 22:44
To: All about Yaesu 1000mp
Subject: Re: [1000mp] FH 1 Question

Why is it necessary to have the lead in the remote socket with the Quadra?

David

I


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