Yeah, it was always there it just doesn’t do what you think it does. It is
there to calibrate the internal TCXO which is fine but things like TCXOs don’t
stay calibrated forever and still drift some. Boneheaded move by Icom I agree.
That plus we now have people and modes that want the dial frequency plus or
minus 1 Hz forever. Only way to do that is ref loc to GPS. As I mentioned
before there are workarounds. One is a firmware update by Icom that makes the
9700 update the internal TCXO frequency every couple of seconds. That is what I
do and use an external 10 MHz OCXO. Works fine for me. There are those though
that isn’t good enough so there is a kit you can get that allows you to truly
ref lock it to GPS. Problem solved.
73
Jim, W4KXY
Sent from my iPad
> On Dec 5, 2021, at 2:57 PM, Peter Laws <plaws0@gmail.com> wrote:
>
> On Sun, Dec 5, 2021 at 1:46 PM Jim Worsham <wa4kxy@bellsouth.net> wrote:
>>
>
>> The only negatives for the radio are the frequency stability issue, which is
>> overblown IMHO, and the single amplifier keying connection. As others have
>> pointed out there are workarounds available for both of those. If you want
>> to get on 144, 432 and 1296 without messing around with transverters and a
>> mile of cabling (been there and done that) it is the way to go.
>
> It seems like people don't understand Parts Per Million or something.
>
> Having just looked at the manual online (to see the pinouts on the
> ACC1) I see an SMA for "[REF IN 10MHz]". I don't recall seeing that
> before - was that there in the initial run of units? Because if it
> was, I *really* don't see what the fuss was.
>
>
> --
> Peter Laws | N5UWY | plaws plaws net | Travel by Train!
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