Center Frequency and Span for Spectrum Analyzer ESA

[Sim5]

Hello All, 

I am asking one silly question but i tried many things didn't work out so asking you all.

I need to set the spectrum analyzer as follows:

RBW: 10Khz

Sweep:AUto

Span 2400Mhz

Ref Level -40 dBm

Trace 1: View

Trace 2: max Hold

Tarce 3 :min hold

Andt MAIN CENTER freq 65850kHz

But when i run my program all values are getting set ex CENTER FREQ it always sets as 1200Mhz. 

I dont know is there any automated adjustment that Center freq always come to appro to half of span????

If anyone can tell me the solution for this...

Thanks so much

[[dennis]]

Hi pals,

it looks like a problem with you external Hardware. Please contact the manufacturer of your Spectrum Analyzer or use the manual to find out if why your Spectrum Analyzer always change your settings.

[Sim5]

Hi,

Thanks a lot....

i think so that there is any auto calculation happening  so it always cet center freq to app half of center freq when i run the labview program. But when i set manually it does set... So i thought its a problem in code....

Pals

[[dennis]]

Hi Pals,

even is there a problem with a single VI you using in your program you have to contact the manufacturer because he is accountable for the VIs for his hardware.

[Sim5]

Hi Dennis,

Thanks so much.... Surely i will.... initially i thought that some problem in my program only.... 

Thanks so much....

pals 

[[dennis]]

Hi Pals,

in my opinion the code looks good and workable I don't think there is any problem.

[Sim5]

Hi Dennis, 

Thanks once again....

pals

[Sim5 · Accepted solution]

Hi all...

Got the solution the difference between center freq and span is too huge... So its not accepting....

Now i am getting the correct values.... Due to this huge range start freq of spectrum was going below range... That was the problem....

Thanks all....