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vrf Agilent E4407B Spectrum Analyser - Screen Format

Question asked by VRFuser on Aug 11, 2006
Some info on the IntuiLink bitmap inversion… 
 
I wrote the COM server code for the IntuiLink (for the ESA) and the code to invert the images.  The IntuiLinks that automatically invert an image use a library from a company called LeadTools to handle the images and any conversions.  The inversion is done via a call to “L_InvertBitmap† contained in the library ltIMG11n.dll.  
 
Ken
 
 
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From: Jay Nemeth-Johannes [mailto:jay.johannes@smartsensorsystems.com]
Sent: Friday, August 11, 2006 12:16 PM
To: VRF
Subject: RE: [vrf] Agilent E4407B Spectrum Analyser - Screen Format
 
I didn't do the analyzers for IntuiLink.  I did the meters.  That said...
 
There are several possibilities here.  The poster seems to imply that you can reverse the bitmap from the front panel.  He also said that intuiLink does it.
 
Intuilink could be modifying the GIF palate, or they could be pulling out a  bitmap and doing a byte level inversion.  The more likely answer is that most of the analyzers have commands that will simulate key presses on the front panel.  Often these commands are undocumented because they are primarily used for engineering QA and production test.  Since this box is SCPI based, the most likely place to look would be in the DIAGnostic subsystem.  The DIAG subsystem is totally instrument dependent, so you would need to play around to find the command.  The best solution would be to get a real GPIB analyzer and hook the box up via GPIB.  Then run Intuilink and look at the commands going by.  I believe both NI and Agilent have software analyzers available, but the better answer is a hardware analyzer as it captures everything.
 
If you need to try and figure out the hidden command, I would look at DIAG:KPR, DIAG:KEY:PRES, DIAG:KEY or something like that, but I'm just guessing.
 
Jay Nemeth-Johannes 
Smart Sensor Systems 
720 SW 14th Street
Loveland, Colorado 80537
(970) 663-0006  (Office)
(970) 290-9797 (Cell)
HYPERLINK "http://www.smartsensorsystems.com/"www.SmartSensorSystems.com
 
 

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From: Joe Flynn [mailto:jflynn@sequoiacommunications.com]
Sent: Friday, August 11, 2006 9:24 AM
To: VRF
Cc: VRF
Subject: RE: [vrf] Agilent E4407B Spectrum Analyser - Screen Format
If you use an NI GPIB card, try to use NI SPY to see if it is done in a SCPI command.
Perhaps Intuilink does in by modifying the GIF color palate.
 
Can you save the spectrum analyzer state with the image format reversed? I have a similar problem with PSA measurement personalities.  It's a real PITA to save/recall states to simply select a different display option.
 
Best Regards,
Joe Flynn
 
 

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From: Andrew.I.James@nokia.com [mailto:Andrew.I.James@nokia.com]
Sent: Friday, August 11, 2006 3:53 AM
To: VRF
Subject: [vrf] Agilent E4407B Spectrum Analyser - Screen Format
Hello,
Does anyone know how to automate the format of the screen to reverse bitmap?  Obviously it's easy to do manually but I can't find out how to automate this.  The guys at Agilent say it is not possible but their IntuiLink software that comes with the unit does it when you do a screen dump.
Any help appreciated,
Andrew

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