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10, 5, 1 mhz precision disciplined quartz standard


For Sale: 10, 5, 1 mhz precision disciplined quartz standard


Subject 10, 5, 1 mhz precision disciplined quartz standard
Ad is submitted by poster: A4= 5Mhz input ( not needed except when the module is switched to the compare mode via an external 10-9th standard AN/URQ10 series)
A6= 5 mhz output (the real reason for this module)
Yes, there was 2 500 khz outputs- they went to different modules.
Keep an eye on this listing. We are going to try to characterize the standard and display the Allan Variance.
This standard was rated at 1 part in 10-8th per day. It was normally not used internally with this unit but had an external 5mhz standard which was used most of the time which was the 10-9th a factor of 10 better than the internal standard.
This was the mainstay of the navy, the R-1051B and the air force had the C model. Unbelievably complicated and weighs 90 lbs for a solid state unit. However, they are still in use today! (G&H models) today because they are so rock solid when it comes to SSB reception.
The 5mhz input compared the frequency to the internal standard and there was a flashing neon bulb and the ET's tried to get the internal standard to almost agree with the external standard at something like 1 flash/ 5 seconds.
This unit has been factory refurbished and it comes in a sealed anti-stat bag from the Navy's Metrology Lab.
Its Military Part Number is AG-6(***)-078-4713
This item comes with a 3 day right of return policy.
All returns must be made within 3 days of receipt.
All warranties are void if the calibration / warranty seals are broken.
Ascent Concepts and Technologies is a Research & Development Lab. As a service to the companies and institutions we work with, we broker their excess equipment & act as application specialists on their new equipment needs. We are now offering quality used equipment to the public with the same level of professionalism and service.
repair--parts.com bears NO responsibility for this ad. Please report ads that do not follow our rules (on front page). Posted By: Debora Day
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