One of the improvements in 7.07 was to enable the saving of jpeg file types, not only bmp as was in 7.05
I've asked for more file types for a little while, SSA3kX is the first of any Siglent AFAIK to offer jpeg and we hope there will be more in the future. Png? Maybe. Discussion with Tech support has been around the time to convert each of the different types and the effect it has on the Save file computation times.
Jpeg takes a few more seconds to compute than BMP and with the jpeg format I have missed files by removing a USB pen drive too quickly before it has fully loaded. Annoying, yes but with the SSA3kX it is very quick to use the File management UI to check the file is present and does actually contain data.
I need to learn to more patient.
PNG is lossless.
When designer put jpg to this kind of purpose in equipment it can nearly say it is design error.
@Tautech: I just tested some cheap DC blockers from Ebay and they work quite well.
This one is the blue line (yellow is no DC blocker): www.ebay.com/itm/141638175057
However it seems the Siglent SSA3000X series has DC blocking capacitors build in so there is no need for an external one for DC levels up to +/-50V.
Quite, but with a rated 50V input how much more isolation is wise to use?
IMO if a significant amount more is not added there's still a risk that a SA newbie like me might do damage.
I'd rather be safe rather than sorry with a $3K+ SA .
I'm looking for something reasonable and a bit higher spec to offer as an option to customers rather than have unnecessary equipment failures as a result of misuse.
Anyone suggest a source of a suitable DC block, a bit better spec'ed?
Quite, but with a rated 50V input how much more isolation is wise to use?
IMO if a significant amount more is not added there's still a risk that a SA newbie like me might do damage.
I'd rather be safe rather than sorry with a $3K+ SA .
I'm looking for something reasonable and a bit higher spec to offer as an option to customers rather than have unnecessary equipment failures as a result of misuse.
Anyone suggest a source of a suitable DC block, a bit better spec'ed?
Maybe 50V is the standard ......
Quite, but with a rated 50V input how much more isolation is wise to use?
IMO if a significant amount more is not added there's still a risk that a SA newbie like me might do damage.
I'd rather be safe rather than sorry with a $3K+ SA .
I'm looking for something reasonable and a bit higher spec to offer as an option to customers rather than have unnecessary equipment failures as a result of misuse.
Anyone suggest a source of a suitable DC block, a bit better spec'ed?
Maybe 50V is the standard ......Maybe its is, but stuff for some this might be considered an essential accessory too:
http://www.aliexpress.com/store/product/N-M-F-DC-VARIABLE-POWER-block-DC-2-5GHz-200W-1000V-RF-Coaxial-high-voltage/1247757_32628218601.html
Quite, but with a rated 50V input how much more isolation is wise to use?
IMO if a significant amount more is not added there's still a risk that a SA newbie like me might do damage.
I'd rather be safe rather than sorry with a $3K+ SA .
I'm looking for something reasonable and a bit higher spec to offer as an option to customers rather than have unnecessary equipment failures as a result of misuse.
Anyone suggest a source of a suitable DC block, a bit better spec'ed?
Maybe 50V is the standard ......Maybe its is, but for some this might be considered an essential accessory too:
http://www.aliexpress.com/store/product/N-M-F-DC-VARIABLE-POWER-block-DC-2-5GHz-200W-1000V-RF-Coaxial-high-voltage/1247757_32628218601.html
Thats an impressive beast. Just curious is it just projection from accidents when probing around or is there a type of application where they might need that type of protection - kinda sounds like you have something in mind?
@Tautech: I just tested some cheap DC blockers from Ebay and they work quite well.
This one is the blue line (yellow is no DC blocker): www.ebay.com/itm/141638175057Yep, spied that one and found it for less from other sources.
But if you check the specs it's true DC blocking voltage is only 50V.
QuoteHowever it seems the Siglent SSA3000X series has DC blocking capacitors build in so there is no need for an external one for DC levels up to +/-50V.Quite, but with a rated 50V input how much more isolation is wise to use?
IMO if a significant amount more is not added there's still a risk that a SA newbie like me might do damage.
I'd rather be safe rather than sorry with a $3K+ SA .
Why typically 50V dc.
Look typical cheap SMD capacitors specifications.
Note also that for 9kHz in 50ohm system this capasitance need be quite high.
Many DC blocks looks like they have nF class capacitors there instead of around uF class.
Example one in ebay tell that center pin DC block capacitor is 1nF
Now look this corner frequency just for simple estimation without more complex math.
But if do not really need 9kHz and starting from MHz or so is ok it may give much more protection in practice what can read from DC value. Rising from 50V to 200V feeels like some improvement but... think also if freq range bottom is more high, it may also give more protection in practice because it is high pass filter before all internals and more low frequency things are attenuated.
Pity these eBay sellers do not give enough data or data is copied and not exactly from what they are selling..
Also it need think if need DC/High pass block both, center and shield and not only center.
"Sensitive test equipment input protection ideas would have made for a great sticky thread. "
I am glad, my question was not as stupid as I feared...
Again, coming from TV/CATV/SAT field meters, I never had to worry about connecting the coaxial cable, but it would worry me to connect a unknown source to an expensive equipment like a spectrum analyzer.
Would it be wise to open a separate thread on this?
Regards
Antennas, SAT and CATV should all be grounded, hence there should be no static at all.
I will open a separate thread.
Regards
I was referring to TV antennas and SAT/CATV distribution! These are definitly grounded - in Germany by law as a protection against lightening.