Lou, if I've well understood, I'm going to receive the first oscillator soon and the second one after the next order. For me is OK. Feel free to arrange the...
I have posted 24 oscillators to the following: QTY NAME 1 Charles Potma PA3CKR 2 Rajiv Dewan N2RD 1 Kenneth Gray M0KNT 1 Julian Rolfe G4UET 2 Graf Ulrich DK4SX...
... To clarify my last message, I am waiting to hear back from Valpey-Fisher about the other five (5) oscillators I ordered back in early June. Those are...
... Roberto, Yes, I am sending one (1) oscillator to you now. I have just learned from Valpey-Fisher that it will be another 4-6 weeks for the remaining 5...
Any one who purchased a set of transformers from W$YN: Mini-Circuits sent me the wrong transformers, they are missing the center tap on one side. You can I...
You wrote earlier, ... Paul, In between thunderstorms this morning I ran a quick experiment. I have a ground-mounted 36' base-fed vertical over sixteen 45'...
Hi Lou, Received today one osc. Thanks! 73 Lars sm0anh ... From: Lou Macknik To: N2PK-VNA@yahoogroups.com Sent: Tuesday, August 02, 2005 10:51 PM Subject:...
Hi Wes, Thanks for the feedback. That's good info. You might want to measure the level of the TS870 signal on your vertical antenna to make sure it's not...
This week I received my second VF oscillator from Lou Macknik. I would like to use some space here to publically say "thank you Lou" for your efforts. He has...
Hi Guys, When I try to start up VNA4WIN under Win 98SE, I get a message that states that the file MSSTDFMT.DLL is unregistered. I have downloaded this DLL and...
Hi Greg, ... In Roger's and Ian's absence, I'll respond. I had the same problem and here's what Roger Blackwell told me to ... Copy the file to your system...
Likewise, A fantastic service, just have to build it now ;-) Cheers, Julian -G4UET Pete G0TLE <pandagrigson@...> wrote: I'd like to second your mail,...
Thank you everyone for your comments. I get an enormous amount of pleasure in knowing that I can help others build this great project. In over 50 years of Ham...
Many thanks for that, Paul. I typed in what you told me and it worked without having to reboot. Now I have a VNA display on the screen and can continue my...
Does anyone have experience of measuring crystal motional parameters? I would be interested to hear from anyone who can recommend a procedure for doing this...
Hi Pete, ... I've measured many crystals with my VNA. Have built several filters based on those measurements that performed as expected. Without going into a...
Hi Paul, That's a really helpful reply, thanks. I look forward to trying out your technique, especially the neat idea of using phase angle to measure the -3dB...
Hi Pete ... Careful - my 3 dB points are for |Z| not IL, so my delta(f) is typically somewhat narrower than the one obtained from the transmission test. -- 73,...
... Pete, I have yet to use the N2PK analyzer for this purpose, but before I retired, I measured thousands of crystals using an HP3577 and software I wrote. ...
Just finishing construction of my VNA, unfortunatly the Mini Ckt transformers in my kit were the wrong ones, T1-6 instead of T1-6T. Does anyone have any spare...
... Wes, Thanks for the comprehensive and very helpful advice. Preliminary results using your technique for a 9MHz crystal I have to hand yield: C0=4.2pF Rs =...
An order HAS been placed for more oscillators. Ten (10) are currently uncommitted. The following have reserved oscillators from this order (I estimate delivery...
Hi Lou, I too applaud your efforts, as well as those of others who have done similar, in organizing group buys of VNA parts. Anyone who has done even a little ...
Many thanks to all who offered assistance with the replacement transformers - very much appreciated and now resolved. What a helpful group! 73's Phil......
Hello everyone: Recently i also built the N2PK VNA,Thank you for Greg Ordy' help. it's work very good with excite softwave. I have Agilent 8753 VNA in my lab,...
Earlier on this topic I stated: "A true series RLC circuit will have minimum R and zero phase shift at the resonant frequency. Unfortunately, the shunt...
Four(4) are currently uncommitted. The following have reserved oscillators from this order (I estimate delivery on October 10): 2 Magnus SM4RWI 1 Ian Brown...
