[Elecraft] re K3 timekeeping

[Bill Frantz]

To continue dreaming: Since the K3 is a wide band receiver, it 
could also automatically update itself from WWV/CHU/etc.

73 Bill AE6JV

On 11/27/14 at 3:01 PM, roger at monitorsensors.com (Roger Crofts) wrote:

>Dear Wayne, are you listening? We need your help to write a little routine that goes like this:-
>When the K3 powers up, it reads an eeprom location which stores 
>the last turn-on time. It calculates how long ago that was from 
>the present time. It reads the correction factor in tenths of 
>seconds per 24 hours from another eeprom location. It 
>calculates the correction required in tenths of a second and 
>updates the clock accordingly. It stores the tenths of seconds 
>remainder in another location ready to be taken into account in 
>the next calculation. Finally it updates the last turn-on time. 
>Of course you will realize that an extra menu item will also be 
>needed, so users can enter their clock correction factor. A 
>single byte can store a correction factor from -12.7 to +12.7 
>seconds per 24 hours.
>With this software addition, the K3 will become a superb 
>chronometer. Perhaps once a year the user will need to tweak 
>the correction factor to allow for crystal aging in the 
>real-time clock.
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Bill Frantz        | Since the IBM Selectric, keyboards have gotten
408-356-8506       | steadily worse. Now we have touchscreen keyboards.
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