[Antennas] ?? on boat radio ATU

Mark Mark <[email protected]>
Wed, 05 Mar 2003 14:37:23 -0800


and ... don't assume the boat's voltage source was 12VDC .. many are 24,
etc....  73  Mark
----- Original Message -----
From: "Cletus W Whitaker" <[email protected]>
To: "Hue Miller" <[email protected]>
Cc: <[email protected]>
Sent: Wednesday, March 05, 2003 2:16 PM
Subject: Re: [Antennas] ?? on boat radio ATU


> de WB2CPN South Central Pennsylvania   2003.03.05
>
> ICOM once made a similiar type loading coil.  The
> rotary switch was stepped from one position to the
> next with a magnetic operated rachet.  One pulse
> stepped the switch to the next position.  The band
> info from the transceiver was decoded and converted
> to "how many steps to 10 meters?"  The IC-720 also
> used this scheme for switching band pass filters.
> That was a chronic fault.      73  Clete