Spike on range ~600-900Mhz

Hi,
I buy SA44B (used) and start using it, in software Spike 3.1 i see spike on range 600-900Mhz. That normal for this device? how can i reduce it or delete? Some service note with fix board? I can solder clean and good,

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Aleks,
Unfortunately this is fairly typical for wide span sweeps. The signal levels should decrease with reference level.
For most of them, if you look at the spur with a span of 200 kHz or less, it will not be there. The spurs are from internal clock harmonics mixing in.

[iAleks]

Ok, thanks. I setup Gain 0 and Atten 0 dB they lost. Thanks you signal hound for good device!

• This reply was modified 7 years, 2 months ago by iAleks.

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