[time-nuts] FTS 1200
EWKehren at aol.com
EWKehren at aol.com
Thu Aug 9 23:49:24 UTC 2012
The unit starts high and over 20 minutes comes down to 4.9999975 with 0 V
on the EFC. Any voltage on pin 2 and it quits oscillating.
Bert
In a message dated 8/9/2012 7:06:48 P.M. Eastern Daylight Time,
lists at rtty.us writes:
Hi
As the unit warms up, you should be able to tell weaner it starts off
above 5 or below 5 MHz. There are enough different crystal cuts that *might* be
in there that checking it at turn on is the easy approach. If it starts
low and is off low, the heater may be the issue.
Bob
On Aug 9, 2012, at 6:53 PM, EWKehren at aol.com wrote:
> Bjoern
> No not able to tune it to 5 MHz.
> Bert
>
>
> In a message dated 8/9/2012 6:48:59 P.M. Eastern Daylight Time,
> bg at lysator.liu.se writes:
>
> Hi Bert,
>
>> I have a FTS 1200 that is off by about 2 Hz. Have decided to take a
>> closer look. Does any one have technical Information I should study
>> before I
>> open it up.
>> Thanks
>> Bert Kehren
>
> The efc range on my FTS 1200 goes from about -1.5Hz to +2Hz (0V to
+10V).
> Is your FTS1200 of even with max (or min) efc voltage?
>
> --
>
> Björn
>
>
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