[Yaesu] Yaesu FRB-757

Fri, 13 Jun 2003 10:38:31 -0700

Hi Cal,

The FRB-757 is an auxiliary keying relay which is inserted in the PTT line
between a transceiver and a linear amplifier. It allows the light-duty relay
in the transceiver to key the amplifier's high-voltage/high-current T/R
relay without risk of contact damage.

I believe that the first Yaesu application was with the FT-757 series and
the FL-2100 series amplifiers. The FRB-757 requires a 12V DC supply, and
will interface most modern amplifiers and transceivers. I would be a little
cautious with older amplifiers with mains voltage on their keying line,
though.

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 CALVIN L. SHERMERHORN
Sent: Friday, June 13, 2003 08:23
To: [email protected]
Subject: [Yaesu] Yaesu FRB-757

Can someone enlighten me as to application of this little box - it
followed me home, arf arf. Tnx to all es 73 de Cal VE4XQ.

Moderator: Ray Brown, KBXSTN
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