[Icom] Automatic band change for Quadra and FL-7000 amplifiers

[Julio Peralta]

Dennis please review the enclosed E-mail regarding having band information
available from logging programs.

The ability to control a Yeasu Quadra amplifier with an Icom rig would be
very important due to the fact the cost of the Quadra is about $1000.00 less
than a an Icom PW-1 amp.

Is this something you could add to LOGic 6 in the near future?

Julio, W4HY

----- Original Message -----
From: "Jerry Flanders" <jeflanders@comcast.net>
To: <icom@mailman.qth.net>; <ic756pro2@yahoogroups.com>;
<yaesu@contesting.com>
Cc: <cq-contest@contesting.com>
Sent: Friday, February 07, 2003 11:40 AM
Subject: [Icom] Automatic band change for Quadra and FL-7000 amplifiers


> My Quadra amplifier now comes on whenever I turn on my ICOM IC-756PRO,
> follows it from band to band from 160 meters to 6 meters (all WARC bands
> included), and selects the appropriate antenna port and ATU presets just
as
> if it was connected to a Yaesu transceiver.
>
> This can also be done with most other modern transceivers.
>
> See  http://www.qsl.net/ab4oj/quadra/w4uk.html for full details and cable
> wiring instructions.
>
> No mods to the transceiver or the amp are required.
>
> FL-7000 users can apply the same information, but actual wiring
> instructions are only provided for the Quadra. (FL-7000 uses a different
> plug).
>
> More:
>
> Yaesu's method of band changing uses a TTL level 4-bit code. When the code
> is generated inside compatible Yaesu transceivers and fed to the amp by
the
> Yaesu "band data" cable, the amplifier follows the transceiver from band
to
> band and also enables antenna tuner presets . Any method of generating a
> similar code will cause the amp to switch just as if the transceiver were
a
> Yaesu.
>
> Ham logging program developers followed the Yaesu code to implement what
> they typically call "antenna relay" switching on a LPT port. Most current
> logging programs provide antenna relay signals, so those logging programs
> emulate the band-data signals of a genuine Yaesu-compatible transceiver.
> The LPT port provides TTL level signals, the Yaesu amp uses them
directly -
> only a cable is required to connect the LPT to the amp. I used my Yaesu
> band-data cable by adding a $3 plug from radio Shack.
>
> Jerry Flanders, W4UK
>
>
> ----
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>