Tagged: sa124 emc spur
danzParticipantdanz January 6, 2019 at 2:23 pm
when reading through the data sheet i saw the below… my question is does the spike software do anything to determine if it a a mixer spur or actual when looking at frequencies above 6 ghz
“Above 4 GHz, the RF input is down-converted using an additional mixing stage with a 7.8 to 8.8 GHz local
oscillator. This additional conversion increases the number of image and spurious frequencies. Image /
Spur Reject mode will still eliminate the vast majority of spurious signals, but an RF input with several
signals present can potentially generate spurious responses. To help determine if a signal is a spur,
toggle your span between 1 MHz and 100 kHz. This modifies the LO and IF frequencies selected, moving
any spurious responses. If the signal is present at a 1 MHz span and a 100 kHz span, it is unlikely to be a
Justin Crooks January 7, 2019 at 9:43 am
- This reply was modified 2 months, 2 weeks ago by Justin Crooks.
The Spike software allows you to configure the spur reject mode, as well as change RBW / span. Unfortunately, these are the only tools we have for the SA124B when it comes to spur mitigation.
You can look at the SM200A. If you require better spurious performance than the SA124B offers, this would be the next step. It is also much, much better at capturing periodic bursts of energy.
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