[ICOM] IC-28H

[Gary P. Fiber]

Thomas,

I looked in the IC-28H manual and the scanning is dependent on use of 
the mic up/down buttons only.
I don't have the up / down circuit at hand but going from memory 
grounding Pin 3 the radio will scan up and grounding Pin 3 through a 470 
Ohm resistor the radio will scan down. Would not be hard to add a couple 
of switches in a small box in  circuit with the SM-6 to accomplish that.

The control scheme has not changed for some time with Icom so other 
owners manuals show the actual circuit of the Up / Down frequency control.

Gary K8IZ

Thomas Giella KN4LF wrote:
> I own an old IC-28H 2 meter FM rig. In order to scan the 21 memories you
> must depress the up or down buttons on the HM-12 hand mic. Does anyone 
> know
> if the memory scan can be activated by pressing a couple of buttons on 
> the
> rig? I like using my SM-6 desk mic with the rig and it does not have 
> up/down
> scanning buttons.
>
> - -... ...- -,
> Thomas F. Giella, KN4LF
> Lakeland, FL, USA
> kn4lf at earthlink.net
>
> KN4LF SWL & Amateur Radio Autobiography: http://www.kn4lf.com
>
>
> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.316 MHz
> Icom FAQ: http://www.qsl.net/icom/
>
> .
>