Hello Bruce,
I agree. The DAC reference is an LM7805CT regulator with 0.8mV/C (typ.)
temperature coefficient. Considering that typical Oscillators (MTI units for
example) have about +-20Hz deviation per 5V - this alone - excluding the
Opamps
tempco, would lead to a temperature drift o
At 9:53 PM -0700 10/20/06, Colin Bradley wrote:
>Would anyone in the group know where I might obtain a manual for the
>Efratom FRK-L Rubidium Oscillator? I checked eBay but found no
>listings. Thanks [EMAIL PROTECTED]
>
Colin,
Googling for said manual (leaving off the L) vives this BAMA page:
Would anyone in the group know where I might obtain a manual for the Efratom
FRK-L Rubidium Oscillator? I checked eBay but found no listings. Thanks [EMAIL
PROTECTED]
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Dave Brown wrote:
> Interested in any comments on this GPSDO -
>
> http://www3.sympatico.ca/b.zauhar/GPS_Std/GPS_Std.htm#GPS_Receivers
>
> DaveB, NZ
>
>
>
Why anyone would bother to create something like this escapes me.
Just another example of unintelligent engineering.
If one is foolish enough
Interested in any comments on this GPSDO -
http://www3.sympatico.ca/b.zauhar/GPS_Std/GPS_Std.htm#GPS_Receivers
DaveB, NZ
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Hi John,
After much experience swapping ROM's and EPROM's in commercial
equipment, I've found that you can never be sure of using a new part.
The address and control timing on many designs is not all it should be,
often the system is only working due to marginal (or even totally
incorrect) timing.
