I have no problem feeding the band data directly into Arduino
input ports. (I homebrewed the antenna switch controller.) I
wonder about the load from your antenna switch controller. You
may need additional pullup resistors. The K3S manual says,
"External pull-up resistors can be connected a voltage not
exceeding 14 V."
73 Bill AE6JV
On 7/4/18 at 10:45 AM, [email protected] (Jim Miller) wrote:
The open collector outputs is
F the K3 or K3s are lightly pulled up then fed thru a series
resistor. Your decode must have adequate buffering in place to
avoid drawing excessive current. A cmos buffer chip will do the trick.
73
Jim ab3cv (got the t shirt)
On Jul 4, 2018, at 11:55 AM, William Liporace <[email protected]> wrote:
Hi Folks,
I thought it was me, but I guess not... When I hook up a cable
to the ACC plug for band data output, I get about 4.8v
(slightly less than 5v). When I hook up the radio to any
antenna switch that has band data input, the voltage goes down
to 3v. This is not enough to drive the antenna switches. This
is a new KIO3B board, so is it a bad board? Is there something
else not set right that I am missing?? I didn't anything in the manuals..
TNX Will WC2L
-----------------------------------------------------------------------
Bill Frantz | Security is like Government | Periwinkle
(408)356-8506 | services. The market doesn't | 16345
Englewood Ave
www.pwpconsult.com | want to pay for them. | Los Gatos,
CA 95032
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