[time-nuts] My FE-5680A Came In Today
Bob Camp
lists at rtty.us
Wed Sep 18 00:06:17 UTC 2013
Hi
If you retune it, you probably will throw off the pps. The pps drive strength is a bit weak, so you need to be careful looking for it. On some units there is a software command to enable / disable it (as in pps only when warmed up and locked - like a gps). The can / cover on the unit is mu metal (Rb's are mag sensitive). If you drill a hole in it, you are likely to impact it's mag shielding properties.
Bob
On Sep 17, 2013, at 6:21 PM, Bob Stewart <bob at evoria.net> wrote:
> My FE-5680A Rb standard came in today. After the usual inspections etc, I fired it up and I have the purple haze. The native output is 8.38860798/9 (last digit jitter) as read on my 5335A using my GPSDO as an external standard. I've got a ways to go before it's all setup, but this is looking good. Does it warmup and change frequency at all, or can I retune it to 10MHz and use it as a reference without any further ado?
>
> Can someone tell me what type of socket that is where you tap off the RF? It looks sort of like a uFL connector, but a bit bigger. I'd rather avoid hacking and soldering on this if I can.
>
> Bob - AE6RV
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