HP89410A VSA example problem, Trace data problem

[xiaoz]

after downloading the VSA driver from NI web, i'm trying the VSA application example vi, but the instrument keeps giving me "invalid seperator;:CALC%d:UPH:OFFS %f DEG:" error, turned out to be in the DataFormat vi. I'm using the default setup, anyone knows what's going on? and also i'm trying to use this example to measure some spectrum, but sometimes there's no X-trace data. But if i directly wire the VSA VISA session to X-trace and Y-trace subvi, i can get both trace data, seems having problem when concatenate these two subvis (Xtrace, Ytrace). i wonder if it's a time issue, anyone has the experience?
Thx a lot.

[btejani]

xiaoz,

I took a look at the instrument's Programmer's Manual and it looks like there may be an extra space in the command string in the Data Format.vi.

In the string you specified, please remove the space between "%f" and "DEG". It appears that the instrument expects no space to be present.

If that solves the issue, please let me know and we will apply the change to driver and re-release it to the website.

Thanks,
--Bankim

Bankim Tejani
National Instruments

[xiaoz]

Hi Bankim,

thx for the message, i deleted the space and also add one more ";" at the last "cal" string, then it seems to be working, attached is the new dataformat vi, u can compare it with the original one. There're altogether 3 places which use the "cal", i'm not sure if i add the ";" right, cos ";" was there in the first 2 string, and if u don't add this ";", u still get an error.

Thx
Ben

[btejani]

xiaoz,

I applied the same changes to our driver. The updated files should be up on the website by 2002-05-10. Please download and verify them, so we can ensure a valid fix.

Thanks,
--Bankim

[xiaoz]

Bankim,

the QAM64 and QAM256 demod seems not available, and there's error when i try to setup the Video Demod mode, it says "option not available", sth like that.U might take a look at the MeasureSetup.vi

Thx
Ben

[btejani]

Ben,

If you can fix the driver and send the updated working VIs to instrument.driver@ni.com, we will update the driver accordingly. Otherwise, it will probably be a week or two before we can set aside some time to check it.

We routinely accept updates for contributed drivers. This is especially true in situations like this one, when we don't currently have an instrument to test or verify the driver with.

Thanks,
--Bankim