On 4/18/2016 11:29 AM, Rob wrote:
rickman wrote:
How important are time and frequency references to amateur radio
operators? I've been working on a radio controlled clock design that
would be capable of generating a 32.768 kHz, 60 kHz, 240 kHz, 1 MHz and
10 MHz frequency references in addition to providing the time and date.
Initially it would be capable of receiving the 60 kHz transmissions of
WWVB and MSF. With minor tweaks other stations could be received.

Would this be useful to others?

We use GPSDOs in our co-channel diversity repeater.
The signals we require a 10 MHz and 1PPS.
It would be convenient when modules for arbitrary frequencies could
be inserted (like 10.240 MHz). Our GPSDO allows only evenly divisible
fractions of 10 MHz (like 5, 2, 1 MHz) as auxilliary outputs.

Another thing is that the short-term accuracy is not optimal.
These references "wander around" the correct frequency.

Short term accuracy is what costs real bucks. You need a very stable
VCTCXO or ovenized VCXO. How much accuracy are you seeing and how much
would you like?

--

Rick