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Messages 2392 - 2421 of 7461   Oldest  |  < Older  |  Newer >  |  Newest
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2392 toddwnichols Offline Send Email Mar 1, 2007
1:56 pm
Dudley, When I kitted 14 of these, I bought male SMA thru-hole vertical connectors, part number 523-901-9895-RFX, from Mouser for $2.84 each (I bought 42, to...
2393 dudley_atkinson Offline Send Email Mar 1, 2007
8:36 pm
Thanks, Todd... The price now for 3 is over $6 each, but it looks like I'll have to bite the bullet for two of them. I think that I will leave the one DUT...
2394 Paul Kiciak
n2pk2001 Offline Send Email
Mar 1, 2007
8:48 pm
Hi Dudley, Digikey has them for $3.98 each at one-off. Given the $25 minimum there, you could buy 10 for $3.19 each - you'll probably use them. Or split...
2395 jeffthom99 Offline Send Email Mar 1, 2007
9:49 pm
Hi all- Please add me to the list for one master oscillator. Whoever is making the buy, let me know where to send the cash... Also, DigiKey is out of stock on...
2396 Stan Rife
w5ewa Offline Send Email
Mar 2, 2007
12:22 am
Jeff, go to AD's site and order 2 samples of the AD8041AR. That is what I did. It took a while for them to arrive, but hell, for free who cares. Stan Rife ...
2397 dudley_atkinson Offline Send Email Mar 2, 2007
12:41 am
Try DK AD8041ARZ-ND - it shows in stock for me?...
2398 dudley_atkinson Offline Send Email Mar 2, 2007
12:51 am
Good price on those - thanks. I was looking in the RF and not "RFX" section. Got 10.... I suppose these would be really good for making the alignment...
2399 jeffthom99 Offline Send Email Mar 2, 2007
4:37 pm
Thanks, but quantity available = zero. Not shipping for 2 to 3 weeks. At DK check search results for "ad8041" and see all versions and put-ups. RoHS giveth...
2400 kc0ukk Offline Send Email Mar 3, 2007
2:32 am
Jeff, The ad8041 is an optional component. It only buffers the Master Oscillator for external use. It's not required for the VNA itself....
2401 Todd Nichols
toddwnichols Offline Send Email
Mar 3, 2007
4:14 am
Yup, those male connectors will be good for the standards as well. Todd Todd Nichols AG4AY rfman@......
2402 Ivan Makarov
ve3ivm Offline Send Email
Mar 4, 2007
5:24 am
Hi All, just heads up that I may soon be releasing a beta version of a new program for the N2PK VNA. It is a rather an unusual application that utilizes the ...
2403 kc0ukk Offline Send Email Mar 4, 2007
3:57 pm
The image wasn't stored with the post, Ivan, so I couldn't see what it looks like. Let me know when you need a tester, I'd really like to try it out. ... ...
2404 Paul Kiciak
n2pk2001 Offline Send Email
Mar 4, 2007
5:06 pm
... That's a problem for anyone that doesn't get direct emails from Yahoogroups. Maybe Ivan can start a folder in the Files area and put the image there. -- ...
2405 kc0ukk Offline Send Email Mar 4, 2007
6:34 pm
... Thanks for the tip, Paul. I was curious why folks would post attachments if they were never stored. The traffic on this group is managable via email, so...
2406 Ivan Makarov
ve3ivm Offline Send Email
Mar 4, 2007
10:25 pm
Sorry, I did not realize that Yahoo cuts off the attachments. I made a quick WEB page instead - here it is: http://www.makarov.ca/vna_vvm.htm Matt, I will send...
2407 Paul Kiciak
n2pk2001 Offline Send Email
Mar 5, 2007
6:18 am
Hi Ivan, ... Your VVM software will work with any N2PK dual detector VNA which also has Dave's USB adapter, right? -- 73, Paul, N2PK See the N2PK VNA at: ...
2408 Ivan Makarov
ve3ivm Offline Send Email
Mar 5, 2007
6:45 am
A little correction - the program is expected to also work with 2 classic single detector boards and the USB interface. Ivan ... to...
2409 Ivan Makarov
ve3ivm Offline Send Email
Mar 5, 2007
6:46 am
Hi Paul, yes, Regards, Ivan ... From: "Paul Kiciak" <paul@...> To: <N2PK-VNA@yahoogroups.com> Sent: Monday, March 05, 2007 1:16 AM Subject: Re: [N2PK-VNA]...
2410 dudley_atkinson Offline Send Email Mar 6, 2007
1:47 am
Sure enough - it didn't show on my order until I committed - and now I'm backordered too. But I just put it on a new order instead of backorder - I'm sure I'll...
2411 jeffthom99 Offline Send Email Mar 6, 2007
7:24 pm
All- For low cost SMA connectors (including stripline edge connectors) take a look at www.mpja.com/ . I have used their BNC and PL-259's for a long time and...
2412 Ivan Makarov
ve3ivm Offline Send Email
Mar 7, 2007
6:09 am
Here is some test data, Paul. Peak-to-Peak voltage on ADC1, VVM vs HP Infinum scope with automatic measurements, in mV f,MHz HP Infinum VVM...
2413 Tracy, Michael, KC1SX
mike_kc1sx Offline Send Email
Mar 7, 2007
5:59 pm
Folks, Ok, I'm embarassed to ask this, but it is just something I never needed to know until now and I can't find the answer in books that I have handy... Our...
2414 Tracy, Michael, KC1SX
mike_kc1sx Offline Send Email
Mar 7, 2007
7:25 pm
Ok, I think I got it (thanks to John, KC0GGH for the pointer!) Per Wes, W7ZOI, the angle is associated with the voltage reflection coefficient. More info was...
2415 Paul Kiciak
n2pk2001 Offline Send Email
Mar 8, 2007
8:47 am
Hi Mike, ... Or more directly at: <http://users.easystreet.com/w7zoi/retloss.html> The one relationship Wes doesn't have there seems to be the one you're...
2416 Tracy, Michael, KC1SX
mike_kc1sx Offline Send Email
Mar 8, 2007
4:48 pm
Hi Paul, I had looked at loads of 25 and 200 ohms, constructed using paralleled resistors on the back of SO-239s (rather reactive at VHF, but that doesn't...
2417 Paul Kiciak
n2pk2001 Offline Send Email
Mar 8, 2007
6:45 pm
Hi Mike, ... That's VERY strange. Unless there's some non-linearity present, OSL calibration handles a lot of unusual measurement scenarios my experience. -- ...
2418 jeffthom99 Offline Send Email Mar 12, 2007
12:35 am
Is there a group purchase in preparation for the VNA oscillator module? I have all the parts now and would like to begin building. How much are the besties...
2419 dudley_atkinson Offline Send Email Mar 13, 2007
12:46 am
Eugene has offered to put together a group buy, but no details on when. I'm eagerly awaiting this event, as I have everything else ready to go, and lack only...
2420 scpmiller@...
agoodwin50 Offline Send Email
Mar 13, 2007
1:13 am
I too would like to start collecting the pieces to put together the VNA. I understand that this is possibly the most important and hard to get item on the ...
2421 Tracy, Michael, KC1SX
mike_kc1sx Offline Send Email
Mar 13, 2007
3:32 pm
I bought some of the Belden 1671A from AA1IP and I got the solder-on SMA connectors from the source that he suggested (midsouth cable). Now I am wondering if...
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