Band Scan Limit // Zplots

[dl4raj]

Hi Bob,

I've found out that there is a frequency range limit for band scan of 10MHz maximum which isn't mentioned anywhere in the documentation.
Moreover if you have entered a range of >10MHz the Aim scans
a 10MHz range up from the start frequency just one time and then the graph disappears all of a sudden when it's finished.
I would also generally prefer the normal repetitive band scans to stop after one scan (maybe as selectable feature) because it's a bit tricky to hit the "halt" just in time after one scan to study the result.

As to Zplots:
The program seems to feature starting a "live" scan of the Aim.
There are scan and limit buttons.
But every time I click on either button
(after having switched on the analyzer, then the Aim programm
then Zplots and after having shown Zplots the right folder with the Aim files) there comes only a message
which says that I should make sure to use Aim SW version >561
while I'm using V622d.
Is this a problem of Zplots or of the Aim program?

73
Clemens
DL4RAJ

[ac6la]

For the Zplots question in the previous post:

Thanks to Clemens for bringing this to my attention. There was a problem with Zplots (actually Zplots-AIM) not being able to handle the suffix "d" as found in the AIM program version 622d. This has now been corrected and you can download a new verison of Zplots from:

ac6la.com/Zplots-AIM.zip

Dan, AC6LA

[Bob]

dl4raj said:

Hi Bob,

I've found out that there is a frequency range limit for band scan of 10MHz maximum which isn't mentioned anywhere in the documentation.
Moreover if you have entered a range of >10MHz the Aim scans
a 10MHz range up from the start frequency just one time and then the graph disappears all of a sudden when it's finished.
I would also generally prefer the normal repetitive band scans to stop after one scan (maybe as selectable feature) because it's a bit tricky to hit the "halt" just in time after one scan to study the result.

As to Zplots:
The program seems to feature starting a "live" scan of the Aim.
There are scan and limit buttons.
But every time I click on either button
(after having switched on the analyzer, then the Aim programm
then Zplots and after having shown Zplots the right folder with the Aim files) there comes only a message
which says that I should make sure to use Aim SW version >561
while I'm using V622d.
Is this a problem of Zplots or of the Aim program?

73
Clemens
DL4RAJ

Hi Clemens,

Thanks for the feedback.
Yes, the scan limit of 10MHz should be mentioned in the manual. I'll fix that.

I'll change it so it stops after one scan. I like that better too.

73/ Bob

[dl4raj]

Hi Bob,

thanks for the quick response.
So the 10MHz limit is a normal behaviour which is fine btw.
As I've mentioned there is the "phenomen of the disappearing graph" when the limit is set to >10MHz.
The band scan runs its 10MHz, then there seems to start
the next repetition.
Now the graph of the first scan disappers but the second scan
produces no graph again while it's running.
I think this problem will go away if you change the program
to make one band scan only.

Incidentally I'd like to emphasize that I'm very satisfied with the Aim 4170 having a HP 8407 VNA (0.1 -110MHz) as reference

73
Clemens