AnsweredAssumed Answered

vrf Harmonics measurment

Question asked by VRFuser on Aug 20, 2003

Like • Show 0 Likes0
Comment • 3

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><META http-equiv=Content-Type content="text/html; charset=ISO-8859-1"><META content="MSHTML 6.00.2600.0" name=GENERATOR><STYLE></STYLE></HEAD><BODY bgColor=#ffffff><DIV><FONT face=Arial size=2>Thanks for your program. Your program interpolates the table and given the X axis, generates the Y values. What I need is for the same table given the Y axis, obtain the X value(s). Since the table (discrete function) may not be one-to-one, we may obtain more than one values corresponding to given Y value.</FONT></DIV><DIV><FONT face=Arial size=2></FONT> </DIV><DIV><FONT face=Arial size=2>Cagri</FONT></DIV><BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=lenny.Hill@adc.com href="mailto:lenny.Hill@adc.com">Hill, Lenny</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=cacar@aselsan.com.tr href="mailto:cacar@aselsan.com.tr">'Cagri Acar'</A> </DIV> <DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=vrf@it.lists.it.agilent.com href="mailto:vrf@it.lists.it.agilent.com">Vee group (E-mail)</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 20, 2003 4:31 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: [vrf] Antenna Beamwidth Calculation</DIV> <DIV><BR></DIV> <DIV><SPAN class=412342813-20082003><FONT face="MS Sans Serif" color=#800080 size=2>Try the attached example....it uses Vee Pro 6.1 interpol function in MATLAB.</FONT></SPAN></DIV> <DIV><SPAN class=412342813-20082003><FONT face="MS Sans Serif" color=#800080 size=2></FONT></SPAN> </DIV> <DIV><SPAN class=412342813-20082003><FONT face="MS Sans Serif" color=#800080 size=2>Lenny Hill</FONT></SPAN></DIV> <DIV><SPAN class=412342813-20082003><FONT face="MS Sans Serif" color=#800080 size=2></FONT></SPAN> </DIV> <DIV><SPAN class=412342813-20082003></SPAN> </DIV> <BLOCKQUOTE> <DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> Cagri Acar [mailto:cacar@aselsan.com.tr]<BR><B>Sent:</B> Wednesday, August 20, 2003 12:15 AM<BR><B>To:</B> VEE vrf<BR><B>Subject:</B> [vrf] Antenna Beamwidth Calculation<BR><BR></FONT></DIV> <DIV><FONT face=Arial size=2>Hi there,</FONT></DIV> <DIV><FONT face=Arial size=2>Does anyone has a function that calculates the beamwidth of an antenna? Input is an array of degrees vs magnitudes and the beamwidth level (-3dB, -10 dB, etc). I have coded a function but the output is discrete (with the if/then/else statements). For example if my data's resolution is 2 degrees that the output becomes the multiples of 2 degrees. What I need is function that interpolates the input data and generates an analog output.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Regards</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Cagri ACAR<BR>Test Engineer<BR>Microwave Systems Technologies Test Engineering Department<BR>ASELSAN AS<BR>PK101 Yenimahalle 06370 ANKARA TURKEY<BR>Phone: +903125922230</FONT></DIV>---<BR>You are currently subscribed to vrf as: lenny.Hill@adc.com<BR>To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".<BR>To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".<BR>To send messages to this mailing list, email "vrf@it.lists.it.agilent.com". <BR>If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com". </BLOCKQUOTE></BLOCKQUOTE>---<BR>You are currently subscribed to vrf as: rsb@soco.agilent.com<BR>To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".<BR>To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".<BR>To send messages to this mailing list, email "vrf@it.lists.it.agilent.com". <BR>If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".</BODY></HTML>

No one else has this question

Outcomes

fsc729 Aug 15, 2003 9:26 AM

Hello everyone, I have a 8536EC spectrum analyzer, I want to program it to
measure the harmonics of a CDMA2000 signal.

The test setup is as follows, we have a cell band and PCS band amplifier,
we test the amplifiers one at a time. We connect the output of the
amplifier to some attenuators and then connect the attenuators to the
spectrum analyzer, the input to the amplifier is provided by a vector
signal generator, generating a CDMA2000 waveform.

Since semiconductor amplifiers are nonlinear it produces harmonic signals,
the problem is that measuring the harmonics of non-CW signal on a pure
Spectrum analyzer is not trivial, as I have found out, the spectrum
analyzer has some features that maybe useful, I have been playing around
with the channel power over bandwidth feature, but I am yet to be
convinced this is the proper way to measure harmonics.

My question is how does one measure the harmonics of a CDMA2000 waveform
on a spectrum analyzer that has channel power over bandwidth feature??

Thank You
JOhn

__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software
http://sitebuilder.yahoo.com

---
You are currently subscribed to vrf as: rsb@soco.agilent.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".

Actions

VRFuser Aug 18, 2003 7:39 PM

The first question I would ask is whether the slot 0 card is the same on
both systems. Were you using an Agilent E1406 Slot 0 card for the
development system?.

If the runtime machine is using an NI slot 0 card, the I/O will be very
slow. In fact, the VXIplug&play documentation explicitly states that this
configuration is not supported. This is because the 1406 contains a message
to register based translation that greatly reduces I/O traffic. The NI slot
0 card does not contain this translation and would need to have all the
register based commands sent directly.

Jay Nemeth-Johannes
Complete Test
720 14th Street SW
Loveland, CO 80537
(970) 663-0006
www.completetest.com

-----Original Message-----
From: Lancashire, Steve (IndSys, Peterborough)
[mailto:Steve.Lancashire@ge.com]
Sent: Tuesday, August 19, 2003 1:42 PM
To: VEE vrf
Subject: [vrf]

Hello All

I recently developed some software to read temperatures via thermocouples.
The program displays 30 to 40 temperatures and
logs the data every 1/2 hour.
The thermocouples are connected to a VXI chassis via MUX cards and the
voltages are read via a 1411 voltmeter.
I communicate remotely with the chassis by means of a E5810 gateway.
When I ran the program using the Vee Pro version 6.0 development environment
it was quite fast.
Recently I created a runtime version and set it up to operate on another
computer. This machine has the same processor ( a Pentium
III, 450) and 450 Megs of RAM however the Runtime Program seems to execute
much more slowly.
I wondered if anyone out there has encountered the same problem and if so
have you found a solution?

Thanks in Advance -- Steve

---
You are currently subscribed to vrf as: jay.johannes@completetest.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to
"owner-vrf@it.lists.it.agilent.com".

---
You are currently subscribed to vrf as: rsb@soco.agilent.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".

Actions

VRFuser Aug 20, 2003 6:03 PM

Maybe this is the chance to link you to some nice web pages with very nice
VEE-examples, esp. with Excel and more:

http://www.my-vee.de
Sorry , it is German, but the examples are worth to have a look at.

http://www.preciselyso.co.uk/
known from this list ;-)

For sure there are a lot more...

IS there a site somewhere where all these wonderful links are listed ?
AT agilent i did not find it , sorry...

Best regards,
detlef

-----Ursprngliche Nachricht-----
Von: Stors, James [mailto:jstors@ti.com]
Gesendet: 20 August 2003 22:21
An: VEE vrf
Betreff: [vrf] Launching a Macro within Excel from Vee 5.0

I am hoping someone can help me with this. I have a Vee 5.0 program that is
currently launching an Excel spreadsheet. Within this spreadsheet is a
macro that I need to have run. I've tried using the auto launch command as
part of my Macro, but unfortunetely the Macro will not run when opened by
another program (meaning it will run when I manually open the spreadsheet).
I'm assuming that there must be an ActiveX formula that I can use to run the
Macro (lets call it "Macro1"), but I do not not where to start to try and
find the proper code. I did record a Macro of running the Macro1, and the
VBA code given was...
Application.Run "Test.xls!Macro1"
Not sure if that helps, but if anyone has any ideas please let me know.
Thanks,
Jim
---
This message and any attachments are confidential, for the exclusive use of
the addressee and may be legally privileged. Any other distribution, use or
reproduction is unauthorised and prohibited. If you have received this
message in error, please notify the sender immediately and delete the
message from your system.

Visit our internet site at http://www.pilkington.com

---
You are currently subscribed to vrf as: rsb@soco.agilent.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".

Actions

3 Replies

fsc729 Aug 15, 2003 9:26 AM
Mark Correct
Correct Answer
Hello everyone, I have a 8536EC spectrum analyzer, I want to program it to
measure the harmonics of a CDMA2000 signal.

The test setup is as follows, we have a cell band and PCS band amplifier,
we test the amplifiers one at a time. We connect the output of the
amplifier to some attenuators and then connect the attenuators to the
spectrum analyzer, the input to the amplifier is provided by a vector
signal generator, generating a CDMA2000 waveform.

Since semiconductor amplifiers are nonlinear it produces harmonic signals,
the problem is that measuring the harmonics of non-CW signal on a pure
Spectrum analyzer is not trivial, as I have found out, the spectrum
analyzer has some features that maybe useful, I have been playing around
with the channel power over bandwidth feature, but I am yet to be
convinced this is the proper way to measure harmonics.

My question is how does one measure the harmonics of a CDMA2000 waveform
on a spectrum analyzer that has channel power over bandwidth feature??

Thank You
JOhn

__________________________________
Do you Yahoo!?
Yahoo! SiteBuilder - Free, easy-to-use web site design software
http://sitebuilder.yahoo.com

---
You are currently subscribed to vrf as: rsb@soco.agilent.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Like • Show 0 Likes0
Actions
VRFuser Aug 18, 2003 7:39 PM
Mark Correct
Correct Answer
The first question I would ask is whether the slot 0 card is the same on
both systems. Were you using an Agilent E1406 Slot 0 card for the
development system?.

If the runtime machine is using an NI slot 0 card, the I/O will be very
slow. In fact, the VXIplug&play documentation explicitly states that this
configuration is not supported. This is because the 1406 contains a message
to register based translation that greatly reduces I/O traffic. The NI slot
0 card does not contain this translation and would need to have all the
register based commands sent directly.

Jay Nemeth-Johannes
Complete Test
720 14th Street SW
Loveland, CO 80537
(970) 663-0006
www.completetest.com

-----Original Message-----
From: Lancashire, Steve (IndSys, Peterborough)
[mailto:Steve.Lancashire@ge.com]
Sent: Tuesday, August 19, 2003 1:42 PM
To: VEE vrf
Subject: [vrf]

Hello All

I recently developed some software to read temperatures via thermocouples.
The program displays 30 to 40 temperatures and
logs the data every 1/2 hour.
The thermocouples are connected to a VXI chassis via MUX cards and the
voltages are read via a 1411 voltmeter.
I communicate remotely with the chassis by means of a E5810 gateway.
When I ran the program using the Vee Pro version 6.0 development environment
it was quite fast.
Recently I created a runtime version and set it up to operate on another
computer. This machine has the same processor ( a Pentium
III, 450) and 450 Megs of RAM however the Runtime Program seems to execute
much more slowly.
I wondered if anyone out there has encountered the same problem and if so
have you found a solution?

Thanks in Advance -- Steve

---
You are currently subscribed to vrf as: jay.johannes@completetest.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to
"owner-vrf@it.lists.it.agilent.com".

---
You are currently subscribed to vrf as: rsb@soco.agilent.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Like • Show 0 Likes0
Actions
VRFuser Aug 20, 2003 6:03 PM
Mark Correct
Correct Answer
Maybe this is the chance to link you to some nice web pages with very nice
VEE-examples, esp. with Excel and more:

http://www.my-vee.de
Sorry , it is German, but the examples are worth to have a look at.

http://www.preciselyso.co.uk/
known from this list
For sure there are a lot more...

IS there a site somewhere where all these wonderful links are listed ?
AT agilent i did not find it , sorry...

Best regards,
detlef

-----Ursprngliche Nachricht-----
Von: Stors, James [mailto:jstors@ti.com]
Gesendet: 20 August 2003 22:21
An: VEE vrf
Betreff: [vrf] Launching a Macro within Excel from Vee 5.0

I am hoping someone can help me with this. I have a Vee 5.0 program that is
currently launching an Excel spreadsheet. Within this spreadsheet is a
macro that I need to have run. I've tried using the auto launch command as
part of my Macro, but unfortunetely the Macro will not run when opened by
another program (meaning it will run when I manually open the spreadsheet).
I'm assuming that there must be an ActiveX formula that I can use to run the
Macro (lets call it "Macro1"), but I do not not where to start to try and
find the proper code. I did record a Macro of running the Macro1, and the
VBA code given was...
Application.Run "Test.xls!Macro1"
Not sure if that helps, but if anyone has any ideas please let me know.
Thanks,
Jim
---
This message and any attachments are confidential, for the exclusive use of
the addressee and may be legally privileged. Any other distribution, use or
reproduction is unauthorised and prohibited. If you have received this
message in error, please notify the sender immediately and delete the
message from your system.

Visit our internet site at http://www.pilkington.com

---
You are currently subscribed to vrf as: rsb@soco.agilent.com
To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@it.lists.it.agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Like • Show 0 Likes0
Actions

vrf Harmonics measurment

Outcomes

Related Content

Recommended Content