Steps in the signal
I have a problem with measuring the spectrum with Spectran HF-60105 X v4. When nothing is plugged into BNC connector I expect almost straigt line. But I'm getting signal which looks like steps. Level changes on "full" frequencies (35, 60, 150...)
I also tried to make measuring of some device, but results are really bad (I compared it with another spectral analyzer - HP). Is there any option which I have to enable or change? Why is this happening? Also why are there distinct "peaks" on some frequencies? Thank you for help!
I attach screenshot of original app (MCS Spectrum Analyzer) and my application, results are simmilar.
start frequency: 30 MHz
stop frequency: 300 MHz
RBW: 100 kHz
VBW: 100 kHZ
internal attenuator: 0 dB
You simply get what you pay for: Without internal preamp and UBBV2-Option you cant expect anny better sensitivity in that frequency range.
See this posting how to boost the sensitivity by simply adding 1-2 options to a bench top class unit: viewtopic.php?f=31&t=703
Yes you can upgrade your unit at any time.
For option 020 (internal 15dB Preamp) you would get a upgrade code from us (no need to send the unit back for upgrade).
The UBBV2 is an external preamp (40dB), so no need to send us the unit. This might be the best and also the most cost effectiv solution.