Hello,
Today many manufacturers are producing 10 MHz oscillators that offer many
advantages over BVA.
Phase noise of < -116 dBc @ 1 Hz with a -175 dBc noise floor, ageing of 5 x
10E-9 per month and a G sensitivity of 5 x 10E-11 /g in all axis is
available on a new product.
Also the short term Allan variance is in the low parts in 10E-13 for one
second.
It seems to me the only real advantage of BVA is the long term ageing and
this can easily be sorted out by locking to a superior standard.
Best Regards
Steve
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