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macOS - AA-600 - Antscoope2 #aa-600 #antscope2

 

If Antscoope2 does not show AA-600 in the USB port list.
Make shore that the AA-600 is turned on and connected via USB.
Then reboot your MAC.
Now the USB connection should bee restored and will show up in the connection list in Antscoope 2.

This can happen from time to time when upgrading MAC with new macOS, but not always.
Even if the system information on MAC shows that AA-600 is connected via USB.
#stickpro #stickpro #stickpro

J+I
 

G'day all
I used my Stick Pro with my laptop, a Panasonic toughbook CF-19, Win7, very successfully at our club's antenna building day.

When I started it all up again a few weeks later ,the Stick Pro did not get recognized and AntScope2 did not see the stick.
When I tried the Stick Pro on the computer, Win7, in my office, the stick was unable to get connected to this computer.

I tried to reinstall AntScope2 which did not solve the problem only to get a message that the installment stopped because an AntScope version was already installed.
I had uninstalled AntScope2 before reinstalling the software.

Any ideas about what went wrong?

Cheers John
AA-30 and Arduino board

 

Hi
I am trying to set up a new AA-30 with my Arduino Board, I have the Arduino software installed and copied the simple repeater code but I get an error code when send it to the board?

?I see the COM 9 port in Windows but Antscope wont connect to it either?

Error message below.


Arduino: 1.8.14 (Windows 10), Board: "Arduino Uno"
?
sketch_may12b:1:1: error: 'Compile' does not name a type; did you mean 'tmpfile'?
?
?Compile and run a very simple sketch on your Arduino board. Download and install Arduino IDE.
?
?^~~~~~~
?
?tmpfile
?
exit status 1
?
'Compile' does not name a type; did you mean 'tmpfile'?
?
?
?
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
?
Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

David,

Another thing to keep in mind is the inductance of the leads on your capacitor.? It is about 5 nanohenries (nH) per cm or 13 nH per inch.

This has a considerable effect depending on what frequency you measure the component.? ?

This was posted by a guy on Facebook using his NanoVNA.? ?




I did a similar plot of a 10 pF cap using my AA-55 Zoom and AntScope2 .? Results were exported from AntScope2 as a CSV file and plotted in a spreadsheet.? ?Note how you you need to be in a reasonable reactance range to get a decent estimate of capacitance.





?
Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

On Wed, Apr 28, 2021 at 02:14 PM, David Dybas wrote:
Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?
You need a proper test jig in order to measure components accurately.? I wrote a post on this topic some time ago.??

/g/RigExpert-Family/message/352
Re: AA55 Zoom fan Dipole #AA-55-ZOOM

Cody
 

Yes the AA55 works great on my HEX and 80 meter dipole
Re: AA55 Zoom fan Dipole #AA-55-ZOOM

Cody
 

Alex yes I'm using only one coax. I just re-checked and now I'm getting 1:79 on 40 and 1.35 on 30. Yesterday we had high winds maybe a branch .
Either way it's working now. Thanks for your replay Alex.
73
Cody
?Kc2LsD?
Re: Setting system impedance

 

Thanks Mike, makes sense.? I was over complicating things I think.
Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

开云体育

Good video about this topic:

29.04.2021 22:00, Tom Parkinson пишет:

AA-55ZOOM and up -?


On Thu, Apr 29, 2021 at 1:30 PM David Dybas via <Dd92251=[email protected]> wrote:
I dont see any means for doing an OSL calibration of this model unit. But I will keep searching. BTW that is a great idea ...I use that approach with my Array Solutions VNA.

On Apr 29, 2021 12:54 AM, Ken <ko6no@...> wrote:
It might depend on the capacity of the units compared to the fixture used to connect them to the analyzer. The fixture's capacitance would be included in the measured capacitance unless calibrated out. You should find a method to do the Open Short Load (OSL) calibration at the fixture Unit Under Test (UUT) terminals.?

Sent From My Desktop Via EMClient.

------ Original Message ------
From: "David Dybas via " <Dd92251@...>
Sent: 4/28/2021 2:10:10 PM
Subject: [RigExpert Family] AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas

Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

AA-55ZOOM and up -?


On Thu, Apr 29, 2021 at 1:30 PM David Dybas via <Dd92251=[email protected]> wrote:
I dont see any means for doing an OSL calibration of this model unit. But I will keep searching. BTW that is a great idea ...I use that approach with my Array Solutions VNA.

On Apr 29, 2021 12:54 AM, Ken <ko6no@...> wrote:
It might depend on the capacity of the units compared to the fixture used to connect them to the analyzer. The fixture's capacitance would be included in the measured capacitance unless calibrated out. You should find a method to do the Open Short Load (OSL) calibration at the fixture Unit Under Test (UUT) terminals.?

Sent From My Desktop Via EMClient.

------ Original Message ------
From: "David Dybas via " <Dd92251@...>
Sent: 4/28/2021 2:10:10 PM
Subject: [RigExpert Family] AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas

Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

开云体育

Hello,

AA-35 Zoom does not have a built-in OSL calibration function.


29.04.2021 19:52, David Dybas via groups.io пишет:

I dont see any means for doing an OSL calibration of this model unit. But I will keep searching. BTW that is a great idea ...I use that approach with my Array Solutions VNA.

On Apr 29, 2021 12:54 AM, Ken <ko6no@...> wrote:
It might depend on the capacity of the units compared to the fixture used to connect them to the analyzer. The fixture's capacitance would be included in the measured capacitance unless calibrated out. You should find a method to do the Open Short Load (OSL) calibration at the fixture Unit Under Test (UUT) terminals.?

Sent From My Desktop Via EMClient.

------ Original Message ------
From: "David Dybas via groups.io" <Dd92251@...>
Sent: 4/28/2021 2:10:10 PM
Subject: [RigExpert Family] AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas

Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

I dont see any means for doing an OSL calibration of this model unit. But I will keep searching. BTW that is a great idea ...I use that approach with my Array Solutions VNA.

On Apr 29, 2021 12:54 AM, Ken <ko6no@...> wrote:
It might depend on the capacity of the units compared to the fixture used to connect them to the analyzer. The fixture's capacitance would be included in the measured capacitance unless calibrated out. You should find a method to do the Open Short Load (OSL) calibration at the fixture Unit Under Test (UUT) terminals.?

Sent From My Desktop Via EMClient.

------ Original Message ------
From: "David Dybas via groups.io" <Dd92251@...>
Sent: 4/28/2021 2:10:10 PM
Subject: [RigExpert Family] AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas

Re: Setting system impedance

 

I have an AA-54 and assumed that the "system impedance" was the impedance output of my radio, which, is 50 ohms.

My my measurements are in agreement with the settings of my tuner so I think that works for me at least.
Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

It might depend on the capacity of the units compared to the fixture used to connect them to the analyzer. The fixture's capacitance would be included in the measured capacitance unless calibrated out. You should find a method to do the Open Short Load (OSL) calibration at the fixture Unit Under Test (UUT) terminals.?

Sent From My Desktop Via EMClient.

------ Original Message ------
From: "David Dybas via groups.io" <Dd92251@...>
Sent: 4/28/2021 2:10:10 PM
Subject: [RigExpert Family] AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas

Re: AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

开云体育

Dear Dave,

It is necessary to measure the capacitance of the capacitors (or the inductance of the coils) at the frequency where the value of the active resistance is about 50 ohms.

That is, the algorithm is as follows:
- connect the capacitor to the analyzer
- start the R X measurement in the entire range (button 5)
- move the cursor to the value of R= 50 ohms in the chart.
- press button 8 and get the capacity value.

Regards, Alex

29.04.2021 00:10, David Dybas via groups.io пишет:

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas

Setting system impedance

 

I'm an old guy new to analyzers and recently purchased an AA-55 Zoom which I'm still getting used to using. ?Can someone explain to this old geezer what the analyzer is looking for when setting system impedance? ?The radio of course wants to see a 50 ohm match but is fed with multiple antennas including a non-resonant vertical fed with 50 ohm coax through a 4:1 unun, and a dipole fed with 600 ohm ladder line fed through a 4:1 balun. ?What overall system settings does there analyzer want to see in these cases?

Bill W1WH
AA-35 Zoom Capacitance Accuracy #AA-35-ZOOM

 

Hi All,

I am measuring 1% tolerance Silvered-Mica Capacitors which I purchased new from a large supply house.? ?When I use the AA-35 to measure these capacitors, of various capacitances,? the AA-35 gives me measured values that are about 20% higher than the Capacitors marked value.? ?I do not suspect the capacitors to be mis-marked.? ?What can I expect for the accuracy of the AA-35 ?? ? ?Is there a particular frequency to measure the capacitors to get the best and most accurate measurement ?? ? ? ?I have another brand of VNA that gives me better, but still not perfect measurement values.? ?Does anyone have information regarding my problem ?

Best Wishes
Dave Dybas
Re: AA55 Zoom fan Dipole #AA-55-ZOOM

 

开云体育

I agree?? a fanned dipole of three should read as 3 separate antennas.

?

?

?

From: [email protected] [mailto:[email protected]] On Behalf Of Roger Need via groups.io
Sent: Thursday, April 22, 2021 6:39 PM
To: [email protected]
Subject: Re: [RigExpert Family] AA55 Zoom fan Dipole #AA-55-ZOOM

?

On Thu, Apr 22, 2021 at 03:27 PM, Cody wrote:

Good evening all. I just received my AA55 Zoom and I'm getting the hang of it. My issue is I have one coax and two dipoles a 30m and 40m on it. on my external radio meter and on my radio with no tuner I have 1:2:1. However on the AA55 it's over 50. I think the AA55 is reading both wires as one. When I tried the multi mode and adjusted the frequencies? it's about 9:1
How can I get the AA55 to see bothe dipoles.

It should see both dipoles just the way it is.

?

I suspect you have a bad connecting cable or something is wrong with your AA-55 Zoom.? Have you tried connecting a dummy load to see if it is close to 1:1 ??? If that works try a 100 ohm and a 25 ohm resistor.? They should read 2:1

?

Roger
Re: AA55 Zoom fan Dipole #AA-55-ZOOM

 

On Thu, Apr 22, 2021 at 03:27 PM, Cody wrote:
Good evening all. I just received my AA55 Zoom and I'm getting the hang of it. My issue is I have one coax and two dipoles a 30m and 40m on it. on my external radio meter and on my radio with no tuner I have 1:2:1. However on the AA55 it's over 50. I think the AA55 is reading both wires as one. When I tried the multi mode and adjusted the frequencies? it's about 9:1
How can I get the AA55 to see bothe dipoles.

It should see both dipoles just the way it is.
?
I suspect you have a bad connecting cable or something is wrong with your AA-55 Zoom.? Have you tried connecting a dummy load to see if it is close to 1:1 ??? If that works try a 100 ohm and a 25 ohm resistor.? They should read 2:1
?
Roger
Re: AA55 Zoom fan Dipole #AA-55-ZOOM

 

开云体育

Hi Cody,

Are two dipoles connected to one coaxial cable at the same time?

Scan SWR (button 4) in the entire range and show a photo of the resulting graph.

Regards, Alex

23.04.2021 01:26, Cody via groups.io пишет:

Good evening all. I just received my AA55 Zoom and I'm getting the hang of it. My issue is I have one coax and two dipoles a 30m and 40m on it. on my external radio meter and on my radio with no tuner I have 1:2:1. However on the AA55 it's over 50. I think the AA55 is reading both wires as one. When I tried the multi mode and adjusted the frequencies? it's about 9:1
How can I get the AA55 to see bothe dipoles.

Thank you
73
Cody KC2LSD

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