[R-390] Frequency Synthesis on the R-390/A

[2002tii]

John wrote:

>The Manson synthesizers had very
>low discrete spurious levels, but phase noise was poor, and in that respect
>considerably degraded the receiver's performance.

If the two I've seen are any indication, John is being very 
polite.  I would characterize their phase noise as "abysmal" and the 
performance degradation as "extreme."  The folks I know who worked 
with them back in the day told me they were never used seriously 
because of the poor performance and unreliability.

Best regards,

Don