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Re: Just purchased a nanovna. Want to measure SWR.
Without a doubt, Pointing at the sky when possible! Kent
By KENT BRITAIN · #13018 ·
Re: NanoVNA firmvare, compiled by DiSlord #firmware
Prepare and upload all code for H to my git https://github.com/DiSlord/NanoVNA Soon upload H4 code, need prepare it
By DiSlord · #13017 ·
Re: Just purchased a nanovna. Want to measure SWR.
I would put it in the position you plan on mounting it.?Sent via the Samsung Galaxy S10, an AT&T 5G Evolution capable smartphone
By W2DWL <w2dwl@...> · #13016 ·
Re: SWR with a NanoVNA
look at this: Now, if for some reason your SWR changes with differing lengths in your coaxial feedline, then you've got common mode RF flowing on the OUTSIDE of the coax (braid).ax explained
By olivier LAVAUX · #13015 ·
Just purchased a nanovna. Want to measure SWR.
Hi all, first post. I just purchased a Nanovna. I would like to test the SWR of a dual band UHF/VHF coat hanger yagi antenna I made. What would be the best position to have have antenna facing while
By Cory <cr.andersen83@...> · #13014 ·
Re: What Battery?
Thank you very much Roger, that really help!
By Ernesto Marquez · #13013 ·
Re: NanoVNA firmvare, compiled by DiSlord #firmware
@DiSlord Thank you for your fabulous firmware! Great work! I made the update of my h4 yesterday with clearconfig 1234 first and the flashing the dfu file (Version 0.8.4.4 from your post #12958). After
By dekagon · #13012 ·
Re: 3.2 inch screen for version2
Hi Herb, All good? Thanks for sharing, indeed you are right, bigger characters would take advantage of the 3.2inch. Let's see if we will have a AA version as well... A quarta, 29/04/2020, 03:10,
By CT2FZI · #13011 ·
Re: Hugen - Are you shipping in new packaging?
Hugen, Thank you for the clarification. Roger
By Roger Need · #13010 ·
Re: Hugen - Are you shipping in new packaging?
Hello Roger, Since some customers want to DIY their own cases and add larger batteries, we still offer the NanoVNA-H with sandwich construction£¨Just like my earliest handmade ones£©. Out of
By Hugen · #13009 ·
Hugen - Are you shipping in new packaging?
I just saw this posted in the NanoVNA Facebook group. It supposedly is a NanoVNA-H version 3.4. The label looks like a 3.4 version but it is not in the "gift box" with the gold lettering. Seems to be
By Roger Need · #13008 ·
Re: 3.2 inch screen for version2
The 3.2" display I ordered for my S-A-A-2 arrived today (see attachment). It took all of about 5 minutes to unscrew the old 2.8" display, remove it from the 14-pin socket and plug the 3.2" display in.
By hwalker · #13007 ·
Re: What Battery?
The older versions of the NanoVNA-H used a 3.7 V 450 maH battery LiPo battery (602040) and the latest version with the Version 3.4 board uses a 650 maH battery (602540). You can find them on Amazon &
By Roger Need · #13006 ·
Re: What Battery?
is the NanoVNA-H
By Ernesto Marquez · #13004 ·
Re: What Battery?
The battery size depends on which model you purchased. NanoVna, NanoVNA-H, NanoVNA-H4 or NanoVNA-F. You can get up and running by plugging a 5V USB power pack into the USB socket on the NanoVNA. Roger
By Roger Need · #13002 ·
What Battery?
I didnt realized that I purchased a NanoVNA without battery :( What battery can I buy to put on it? I appreciate the help.
By Ernesto Marquez · #13001 ·
Re: Testing directional coupler directivity and bandwidth
On Tue, Apr 28, 2020 at 03:24 PM, WB2UAQ wrote: ... I use my Nanonvna with an HP 8721A directional coupler. ... =============================== The HP 8721A bridge is hard to find on the secondary
By hwalker · #13000 ·
Re: Testing directional coupler directivity and bandwidth
I use my Nanonvna with an HP 8721A directional coupler. As noted above attach ch0 to the input of the coupler and ch1 to the reflected port of the coupler. Attach a short to the directional coupler's
By WB2UAQ · #12999 ·
Re: Testing directional coupler directivity and bandwidth
Thanks all. Herb, you got me in the right direction I am sur I will be able to figure this with the link you provided.
By Pierre Martel <petem001@...> · #12998 ·
Re: OT: looking for testers for a tiny handheld spectrum alayzer
Greetings Erik, Congratulations on your handheld SA project! I imagine it will become a very popular product. I have decades of experience with RF instrumentation and a background in
By Tom VA7TA · #12997 ·