8753 (8722ET) Network Analyser Calibration

[mclaugb]

I am trying to use the 8753x labview module "Save/Recall Calibration" to do the following.  First, i would like to understand what values that "Save/Recall Calibration" actually saves.  Next I would like to create a user generated list of such values(with some offline correction algorithms) and load these values back into the analyser.  The problem I am having presently is that the file generated by "Save/Recall Calibration" is in Hex and even with Ultra-Edit Hex Editor, i cannot read the values.  I am not sure if the 4 byte header is causing this data to be unreadable but i must understand how the Analyser is saving this calibration data. 
Regards,
Bryan

[xseadog]

Hi Bryan
if you have the network analyser reference manuals at hand you should be able to discover
what the actualvalues are.
YOU SHOULD NOT GENERATE YOU OWN USER VALUES .

The instrument is calibrated to do the operation for you.I suggest you read further regarding calibration of
network analysers. They are dedicated instruments to provide Readings such as S parameters,insertion loss,
gain, isolation.

What you can do is generate calibration files for different setups using the same HF cables connected to different
DUTs.
For example A full 2 port calibrate entails you using a 50 ohm load, open cicuit and short circuit reference on Port1
output( point were the DUT is connected) this is then repeated for Port 2 ( connection were DUt output connects to return cable. If I remember correctly you actually compensate for 12 error algorithms!!
 Remember to allow the instrument to stablise before doing thia calibration switch on for at least 30 minutes before hand.
Also IF YOU CHANGE THE connection cables between the DUT and network analyser then recalibrate.DO NOT USE OLD CALIBRATION FILE
Changing the cables effects the reflection coefficients making any reading uselessif you havn't recalibrated.

chow
xseadog

[mclaugb]

Thanks for the suggestions.  Essentially, I am very familiar with the Analyser and have the programmin manual in front of me.  I am only doing a 1 port calibration which consequently only calculates Es,Ed,Er arrays.  I will plug a special sensor to the probe and I am required to do all the calibration offline with algorithms that use three reference solutions.  A metrology group I know of calculate the values offline and then reload them back into the analyser.  The reason for this is that our sensor does not have an open, short, and load.  I will keep plodding along until i figure out how this data is being written because i will eventually have to write such a file myself that the Read/Save Calibration module can write from an array of values.
Regards,
Bryan

[xseadog]

You can make your own calibration kit

If interested then post you email address

chow
xseadog

[mclaugb]

Would most certainly be interested in making my own cal kit. please email me.  my address: mclaughlinbryan...@yahoo..dot..com

[RF surfer]

Hey, I saw your post about building your own standards.

I would be interested in that if you could send it to me: rory.downs@ngc.com

Thanks!