Re: Where to buy "DeepVNA" (NanoVNA-F 4.3 screen aluminum enclosure}
I also use the NanoVNA-F for outdoor operation. Make sure you get the latest version with push button switches instead of the thumbwheel switch. It's a lot easier to use the push button when your hand are cold.
Mike N2MS
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On 02/02/2023 9:09 AM DougVL <k8rftradio@...> wrote:
On Thu, Feb 2, 2023 at 08:02 AM, Clyde Spencer wrote:
I have used it outside but you have to shade the display.
I bought an early 2.8" nanovna, but found it to be unusable outdoors. So then I ordered the NanoVNA-F, and it does need to be shaded, but is much more usable outside. Different Groups.IO group, though, and different firmware developer.
--
Doug, K8RFT
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I posted this question on the nanovnav2 group. This group has a wider audience so I will ask it here.
In the past was able to connect to VNA_QT with my NanoVNA V2 Plus4. I recently tried; the VNA_QT detects the correct COM port but does not connect. I get this exception message. See attachment.
The NanoVNA V2 Plus4 works with the NanoVNA Saver 0.5.4 and NanoVNA-APP-1-1-213 applications.
The NanoVNA V2 Plus4 has software version 20220301.
Any ideas? I tried reinstalling the Cypress driver and it still does not connect
I use VNA_QT to upgrade the firmware, Is these another method of upgrading the firmware?
73 Mike N2MS
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Re: Where to buy "DeepVNA" (NanoVNA-F 4.3 screen aluminum enclosure}
On Thu, Feb 2, 2023 at 08:02 AM, Clyde Spencer wrote:
I have used it outside but you have to shade the display.
I bought an early 2.8" nanovna, but found it to be unusable outdoors. So then I ordered the NanoVNA-F, and it does need to be shaded, but is much more usable outside. Different Groups.IO group, though, and different firmware developer. -- Doug, K8RFT
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Re: Latest DiSlord's firmware where I find it
Did you look on his GitHub repository?
73 de va3rr
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Re: Where to buy "DeepVNA" (NanoVNA-F 4.3 screen aluminum enclosure}
When talking about the DeepVNA 101 you need to use the NanoVNA-F groups.io link. [email protected]*Clyde K. Spencer* On Thu, Feb 2, 2023 at 8:03 AM Clyde Spencer via groups.io <cftr01b= [email protected]> wrote: It is not exceptional but is better than the other NanoVNAs on the market.
I have used it outside but you have to shade the display.
*Clyde K. Spencer*
On Wed, Feb 1, 2023 at 6:33 PM Ken <ko6no@...> wrote:
Has anyone used this model outdoors? How readable is it in bright light?
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Re: Where to buy "DeepVNA" (NanoVNA-F 4.3 screen aluminum enclosure}
It is not exceptional but is better than the other NanoVNAs on the market.
I have used it outside but you have to shade the display.
*Clyde K. Spencer*
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On Wed, Feb 1, 2023 at 6:33 PM Ken <ko6no@...> wrote: Has anyone used this model outdoors? How readable is it in bright light?
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Latest DiSlord's firmware where I find it
Hello
I have a nanoVNA SAA-2N HW V2_2 and I like to use the newest version of DiSlord firmware.
On this occasion I want to thank him for the hard work he is doing.
DiSlord's latest firmware version seems to be V1.3.12 but I can't find it.
Can anyone help me with a link to it?
Photos of my SAA-2N HW V2_2 for proper ID below.
Thanks for any help.
--
Eugen? - YO9WHI
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On 01/02/2023 20:25, Donald S Brant Jr wrote: Get. The. Proper. Tool.
If they make an insertion/extraction tool it is because it is needed to avoid damaging the delicate connectors on the cable or, worse, tearing loose the mating connector on the board.
My father, a tool-and-die maker, told me that if you need a tool for your work and do not buy it, you will pay for it and still not have it.
73, Don N2VGU Do you have a URL for purchase, please? A quick search on Amazon and AliExpress was fruitless, and eBay gave: Harley Davidson tool box mount kit U FL EL VT 31-0578 which wasn't right. Otherwise ~US $36. 73, David GM8ARV -- SatSignal Software - Quality software for you Web: Email: david-taylor@... Twitter: @gm8arv
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Re: Running NanoVNA-App on Raspberry Pi
Interesting, thanks Gyula
--
Mike
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Re: Running NanoVNA-App on Raspberry Pi
Try turning off WiFi and/or Bluetooth on RPI, I hope you lower the noise level.
--
Gyula HA3HZ ( )
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Re: Running NanoVNA-App on Raspberry Pi
Thanks Stan. That sounds reasonable but is it fixable?
--
Mike
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Re: Start/stop points for HF SWR measurement
For your first question, regarding how wide is too wide for HF VSWR
measurements:
I have one saved calibration setup from 1MHz - 30MHz, which I use to see
the basic characteristics of a multiband HF vertical antenna (i.e. do I see
good dips on all the bands it is made for). Then I often set the range
smaller to see more closely what the VSWR is at my desired part of just one
or two bands. This works fine, no need to recalibrate for this general
VSWR use. Note that the nanovna firmware interpolates quite well between
calibration points, so reasonably accurate VSWR results are given. Note
also that the frequency position of the VSWR 'dips' (minimums) is not
dependent on calibration - finer calibration will only give a bit more
accuracy of the value of the SWR at that frequency. So for this HF VSWR
purpose, a single saved calibration works well across the HF bands. You
can experiment with this, by doing a detailed calibration for just one
band, say 13.5-14.5MHz, and comparing the VSWR value with what you get from
the 1-30MHz calibration, and you won't see large differences. However, if
you are doing other measurements, e.g. ones that require specific complex
impedance values, you should always calibrate over the frequency range you
are measuring.
For your second question, regarding number of points:
Note that with recent firmware, many nanovna hardware models support 401
points. It sounds like that is what you have, since you are getting 2.5kHz
steps across a 1MHz range. The actual number of points used is settable
via the menus. Which version of firmware do you have? and which model of
nanovna? (can be seen on the startup screen, or on the config->version menu
screen for more recent firmware).
I hope that helps a bit.
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On Wed, Feb 1, 2023 at 5:35 PM Bill Klymus W5PB <bktx75@...> wrote: I know that the nanoVNA has about 101 (measurement points between the
start and stop frequencies. When using it for SWR measurements of an HF
antenna, how wide is too wide? Should each band be framed separately? Or is
it ok to combine bands to save memory slots? For example, instead of having
separate memories for 20, 30, and 40 meters, would I still get a useable
reading if I combined them into one memory (start at 7 MHz and stop at
14.35).
Which brings up another question: If I set the start frequency at, say 6.5
MHz and the stop frequency at 7.5, and there are 101 measurement points,
that means each point should be 9.9KHz apart. However, the marker moves in
2.5 KHz increments. Is it just implying what the SWR should be at these
points?
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Re: Start/stop points for HF SWR measurement
Actually, with 101 points there are 100 spaces, so divide the range by 100 to see the spacing.
I didn't write the code, but I suspect that the graphics engine interpolates between actual measurement points. If you set the range so that the spacing is too wide, you may miss something in between the points.
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Start/stop points for HF SWR measurement
I know that the nanoVNA has about 101 (measurement points between the start and stop frequencies. When using it for SWR measurements of an HF antenna, how wide is too wide? Should each band be framed separately? Or is it ok to combine bands to save memory slots? For example, instead of having separate memories for 20, 30, and 40 meters, would I still get a useable reading if I combined them into one memory (start at 7 MHz and stop at 14.35).
Which brings up another question: If I set the start frequency at, say 6.5 MHz and the stop frequency at 7.5, and there are 101 measurement points, that means each point should be 9.9KHz apart. However, the marker moves in 2.5 KHz increments. Is it just implying what the SWR should be at these points?
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Re: Group Co-ownership Change
You can always spot the programmers... If they need to say go to:
They actually say:
Goto:
...
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
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On 2/1/23 15:30, Tim Dawson wrote: struct Daves
{ char First_Name[50];
char Surname[50];
char purpose[100];
int dave_id; }
daves;
On February 1, 2023 5:16:00 PM CST, "Dave (NK7Z)" <dave@...> wrote:
Clearly you have not programmed enough... Should have ben
Dave0, Dave1, and Dave2... :)(
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/1/23 15:06, Dave Daniel wrote:
Yeah, Dr. Seuss even wrote a story about ¡°too many Daves¡±.
You¡¯ll notice that it is now DaveD, DaveE and DaveF.
DaveD
On Feb 1, 2023, at 18:01, Dave (NK7Z) <dave@...> wrote:
?Not another "Dave"...
Welcome, Dave, (W0LEV)
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/1/23 12:55, Dave Daniel wrote:
All,
Please join us in welcoming Dave Eckhardt, W0LEV, to the role of co-owner of the nanovna-users group. Most of you have probably seen his posts to the group. He is well-versed in the use of VNAs and is very knowledgeable in the areas of electromagnetic fields, antennas, EM field measurements, just to name a few.
Dave Feldman
Dave Daniel
(co-owners)
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Re: Group Co-ownership Change
They are probably of a "certain age".
73,
Gary - W6GVS
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At 07:19 PM 2/1/2023, you wrote: Really????
Dave E
On Thu, Feb 2, 2023 at 12:10 AM Dave Daniel <kc0wjn@...> wrote:
We are all older than 25.
DaveD
On Feb 1, 2023, at 18:56, W0LEV <davearea51a@...> wrote:
???Yes, I've heard rumored that one could determine one's age by noting the
first name. Yes, Dave D and Dave E are "about" the same age (we used to
work together). How about Dave F?
Dave E - W??LEV
On Wed, Feb 1, 2023 at 11:06 PM Dave Daniel <kc0wjn@...> wrote:
Yeah, Dr. Seuss even wrote a story about ?€?too many Daves?€�.
You?€?ll notice that it is now DaveD, DaveE and DaveF.
DaveD
On Feb 1, 2023, at 18:01, Dave (NK7Z) <dave@...> wrote: ???Not another "Dave"...
Welcome, Dave, (W0LEV)
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/1/23 12:55, Dave Daniel wrote:
All,
Please join us in welcoming Dave Eckhardt, W0LEV, to the role of
co-owner of the nanovna-users group. Most of you have probably seen his
posts to the group. He is well-versed in the use of VNAs and is very
knowledgeable in the areas of electromagnetic fields, antennas, EM field
measurements, just to name a few.
Dave Feldman
Dave Daniel
(co-owners)
--
*Dave - W??LEV*
--
Dave - W??LEV
--
*Dave - W??LEV*
--
Dave - W??LEV
|
Re: Group Co-ownership Change
Really????
Dave E
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On Thu, Feb 2, 2023 at 12:10 AM Dave Daniel <kc0wjn@...> wrote: We are all older than 25.
DaveD
On Feb 1, 2023, at 18:56, W0LEV <davearea51a@...> wrote:
?Yes, I've heard rumored that one could determine one's age by noting the
first name. Yes, Dave D and Dave E are "about" the same age (we used to
work together). How about Dave F?
Dave E - W?LEV
On Wed, Feb 1, 2023 at 11:06 PM Dave Daniel <kc0wjn@...> wrote:
Yeah, Dr. Seuss even wrote a story about ¡°too many Daves¡±.
You¡¯ll notice that it is now DaveD, DaveE and DaveF.
DaveD
On Feb 1, 2023, at 18:01, Dave (NK7Z) <dave@...> wrote: ?Not another "Dave"...
Welcome, Dave, (W0LEV)
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/1/23 12:55, Dave Daniel wrote:
All,
Please join us in welcoming Dave Eckhardt, W0LEV, to the role of
co-owner of the nanovna-users group. Most of you have probably seen his
posts to the group. He is well-versed in the use of VNAs and is very
knowledgeable in the areas of electromagnetic fields, antennas, EM field
measurements, just to name a few.
Dave Feldman
Dave Daniel
(co-owners)
--
*Dave - W?LEV*
--
Dave - W?LEV
-- *Dave - W?LEV*
--
Dave - W?LEV
|
Re: Group Co-ownership Change
We are all older than 25.
DaveD
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On Feb 1, 2023, at 18:56, W0LEV <davearea51a@...> wrote:
?Yes, I've heard rumored that one could determine one's age by noting the
first name. Yes, Dave D and Dave E are "about" the same age (we used to
work together). How about Dave F?
Dave E - W?LEV
On Wed, Feb 1, 2023 at 11:06 PM Dave Daniel <kc0wjn@...> wrote:
Yeah, Dr. Seuss even wrote a story about ¡°too many Daves¡±.
You¡¯ll notice that it is now DaveD, DaveE and DaveF.
DaveD
On Feb 1, 2023, at 18:01, Dave (NK7Z) <dave@...> wrote: ?Not another "Dave"...
Welcome, Dave, (W0LEV)
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/1/23 12:55, Dave Daniel wrote:
All,
Please join us in welcoming Dave Eckhardt, W0LEV, to the role of
co-owner of the nanovna-users group. Most of you have probably seen his
posts to the group. He is well-versed in the use of VNAs and is very
knowledgeable in the areas of electromagnetic fields, antennas, EM field
measurements, just to name a few.
Dave Feldman
Dave Daniel
(co-owners)
--
*Dave - W?LEV*
--
Dave - W?LEV
|
Re: Group Co-ownership Change
Yes, I've heard rumored that one could determine one's age by noting the
first name. Yes, Dave D and Dave E are "about" the same age (we used to
work together). How about Dave F?
Dave E - W?LEV
toggle quoted message
Show quoted text
On Wed, Feb 1, 2023 at 11:06 PM Dave Daniel <kc0wjn@...> wrote: Yeah, Dr. Seuss even wrote a story about ¡°too many Daves¡±.
You¡¯ll notice that it is now DaveD, DaveE and DaveF.
DaveD
On Feb 1, 2023, at 18:01, Dave (NK7Z) <dave@...> wrote:
?Not another "Dave"...
Welcome, Dave, (W0LEV)
73, and thanks,
Dave (NK7Z)
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 2/1/23 12:55, Dave Daniel wrote:
All,
Please join us in welcoming Dave Eckhardt, W0LEV, to the role of co-owner of the nanovna-users group. Most of you have probably seen his
posts to the group. He is well-versed in the use of VNAs and is very
knowledgeable in the areas of electromagnetic fields, antennas, EM field
measurements, just to name a few.
Dave Feldman
Dave Daniel
(co-owners)
-- *Dave - W?LEV*
--
Dave - W?LEV
|
Re: Where to buy "DeepVNA" (NanoVNA-F 4.3 screen aluminum enclosure}
Has anyone used this model outdoors? How readable is it in bright light?
|
va3rr
David J Taylor
HA3HZ
Ken