Skip to search.
N2PK-VNA

Group Information

? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Message search is now enhanced, find messages faster. Take it for a spin.

Messages

  Messages Help
Advanced
Messages 3443 - 3472 of 7461   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
3443 g8kbb
david529007 Offline Send Email
May 4, 2008
9:54 pm
Hi All Nw available, next version of myVNA for download from http://g8kbb.roberts-family-home.co.uk The main functionality change is the inclusion of a tabular...
3444 Roger D Johnson
dl4oc Offline Send Email
May 4, 2008
10:19 pm
I have found several parallel port to USB cables available on the web. Will these work to couple the VNA to the USB port on my laptop? 73, Roger -- Remember...
3445 g8kbb
david529007 Offline Send Email
May 4, 2008
10:32 pm
They probably will but they will probably run very slowly. The way that USB works is that messages are sent in frames. In USB 1.1 (which is what most such...
3446 Geoff Moore
geoff_m0ore Offline Send Email
May 4, 2008
10:39 pm
New version installed OK, I removed the old version prior to installing the new but forgot to remove the old cal files. Hence it came up with the settings last...
3447 g8kbb
david529007 Offline Send Email
May 4, 2008
11:06 pm
Thanks Geoff Yes, dragging the frequency axis has been there for a while - easy to miss though as it will not let you drag outside the current calibration data...
3448 Gary Johnson
arfghans Offline Send Email
May 5, 2008
3:00 am
In addition to the photos on this site's pages, I wrote about my build of the VNA on my website. Includes some schematics and other oddities. See it at: ...
3449 g8kbb
david529007 Offline Send Email
May 5, 2008
8:22 am
Sigh. So easy to miss the obvious. Many thanks to Dave Lamont for observing that a banner with the measurement types would be useful - and I realised that in...
3450 Mark Marsden
g4axx Offline Send Email
May 5, 2008
8:24 am
Hi Dave Excellent work, well done. I really like the draggable markers and trace, very useful. Thanks a lot for including the 2nd detector! A couple of points...
3451 g8kbb
david529007 Offline Send Email
May 5, 2008
8:29 am
Thanks Mark Markers on Smith - yes, that is on the todo list when I get around to it Markers left hanging - not intended and should not happen - I'll fix it....
3452 Paul Kiciak
n2pk2001 Offline Send Email
May 5, 2008
6:11 pm
Hi All, I was going to wait until I did more simulations of a new VNA technique in MathCAD, but the work I have done so far suggests that this technique is...
3453 Robert Friess
refriess Offline Send Email
May 5, 2008
10:16 pm
Is there software for the VNA that runs under Vista? Bob...
3454 g8kbb
david529007 Offline Send Email
May 6, 2008
6:43 am
Hi Bob Chuck Hutton got myVNA going under Vista (but then had problems - not sure if hardware or software). In principle it should work with Vista- 32 but...
3455 Paul Kiciak
n2pk2001 Offline Send Email
May 6, 2008
10:14 am
Hi All, There is a nice tool to get a feel for DDS/DAC major spurii frequencies and amplitudes at: ...
3456 Robert Friess
refriess Offline Send Email
May 6, 2008
3:15 pm
Thanks for the reply. I actually do not have my VNA yet. I'm just trying to anticipate what problems that I may have. Most of my machines are running...
3457 Paul Kiciak
n2pk2001 Offline Send Email
May 6, 2008
3:55 pm
Hi All, ... I just noticed that the M=2 case above is NOT equivalent to the normal 0,90 degree VNA measurements since the phases used for M=2 are 0 and 180...
3458 Paul Kiciak
n2pk2001 Offline Send Email
May 6, 2008
4:42 pm
Hi All, I just uploaded "DDS_Anti-Alias_Filter_Redesign(5p1).pdf" to the N2PK folder in the group's files area. If anyone finds any errors in this PDF, please...
3459 Gary Johnson
arfghans Offline Send Email
May 6, 2008
6:00 pm
Paul, A fascinating approach! I certainly hope this pans out... Perhaps you can explain something to the more feeble-minded among us, like me. ... While CDS...
3460 Paul Kiciak
n2pk2001 Offline Send Email
May 6, 2008
7:45 pm
Hi Gary, What is it about their relationship with the fundamental that makes them consistently discernible via the 2pi phase scan? Well, like harmonics in the...
3461 Paul Kiciak
n2pk2001 Offline Send Email
May 6, 2008
8:10 pm
Hi Gary, ... As the saying goes, a picture is worth a thousand words, so see if the picture called "32 Phase Sample FFT" in the N2PK album in the photos area...
3462 Gary Johnson
arfghans Offline Send Email
May 6, 2008
8:29 pm
Paul, ... Ahh, now it's clearer. And thanks for the picture. Making the leap to the phase domain is rarely obvious! I saw this behavior an I/Q demodulator that...
3463 Ivan Makarov
ve3ivm Offline Send Email
May 6, 2008
9:46 pm
I've done a lot of DTMF processing time ago and Goertzel is compact and beautiful but it is sensitive to noise. FFT beats it on noisy signals. Not sure if and...
3464 g8kbb
david529007 Offline Send Email
May 9, 2008
7:58 pm
Hi all Now available for download is version 0-24 of myVNA The main changes are twofold First, it is now possible to set independantly the traces on left and ...
3465 Miroslav Ivan
om3lz Offline Send Email
May 10, 2008
12:34 pm
Hi Ivan, shipment received OK. Many thanks! 73, Miro ... From: Ivan Makarov <left@...> To: N2PK-VNA@yahoogroups.com Sent: Sunday, April 27, 2008 8:16:10...
3466 Miroslav Ivan
om3lz Offline Send Email
May 10, 2008
1:14 pm
Hi all list members, VNA PS boards received 2weeks earlier than confirmed. I utilized last holidays to populate small kit parts incl. overvoltage protection ...
3467 paolo
paolo_odone Offline Send Email
May 10, 2008
8:23 pm
Miro, is the payement via Paypal, please? 73's Paolo, i1odp ... Da: Miroslav Ivan Data: 10/05/2008 15.15.05 A: N2PK-VNA@yahoogroups.com Oggetto: [N2PK-VNA] VNA...
3468 Dave Lamont
proteusdhl Offline Send Email
May 10, 2008
10:00 pm
Hi, Paypal is rejecting the address you provided. Please advise the correct address. Regards Dave Lamont ZL2AMD ... From: Miroslav Ivan To:...
3469 Stan Rife
w5ewa Offline Send Email
May 10, 2008
11:25 pm
I payed via paypal using the address provided and it worked just fine. That was earlier today. Stan W5EWA...
3470 Miroslav Ivan
om3lz Offline Send Email
May 11, 2008
8:43 am
Yes, via paypal 73, Miro ... From: paolo <paolo@...> To: N2PK-VNA@yahoogroups.com Sent: Saturday, May 10, 2008 10:23:23 PM Subject: Rif: [N2PK-VNA] VNA PS...
3471 Miroslav Ivan
om3lz Offline Send Email
May 11, 2008
8:45 am
Hi Dave, address is ok sure, received couple of payments yesterday... om3lz_65  is the first part - under slash is there...try again to om3lz_65@... ...
3472 Ivan Makarov
ve3ivm Offline Send Email
May 11, 2008
11:14 pm
Hi All, For the Transverter construction information please see this link http://www.makarov.ca/vna_transverter_build.htm Regards, Ivan VE3iVM ... From: Ivan...
Messages 3443 - 3472 of 7461   Oldest  |  < Older  |  Newer >  |  Newest
Add to My Yahoo!      XML What's This?

Copyright © 2010 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines NEW - Help