Re: NanoVNA case with sun shield
Hi Hi LOL... I bet it does... Take care, Alan ________________________________ From: [email protected] < [email protected]> on behalf of Frank S <ka2fwc@...> Sent: Monday, July 15, 2019 1:35 AM To: [email protected]Subject: Re: [nanovna-users] NanoVNA case with sun shield I'll have to wait until tomorrow,?? it works great outside now :-) On 7/14/2019 9:29 PM, alan victor wrote: Pretty cool! So fire up the display and take it outdoors. Can you see the marker and readout?
For most outdoor antenna work I would have only 1 trace ON. Probably start with log-mag and check for resonance or just
set up Smith display and readout R-X values at the frequency of interest.
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From: [email protected] <[email protected]> on behalf of Frank S <ka2fwc@...>
Sent: Sunday, July 14, 2019 11:10 PM
To: [email protected]
Subject: [nanovna-users] NanoVNA case with sun shield
Here is a complete case with the Sun Brim. I found 2 screws in my junk box
Frank
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Re: NanoVNA case with sun shield
I'll have to wait until tomorrow,?? it works great outside now :-)
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On 7/14/2019 9:29 PM, alan victor wrote: Pretty cool! So fire up the display and take it outdoors. Can you see the marker and readout?
For most outdoor antenna work I would have only 1 trace ON. Probably start with log-mag and check for resonance or just
set up Smith display and readout R-X values at the frequency of interest.
________________________________
From: [email protected] <[email protected]> on behalf of Frank S <ka2fwc@...>
Sent: Sunday, July 14, 2019 11:10 PM
To: [email protected]
Subject: [nanovna-users] NanoVNA case with sun shield
Here is a complete case with the Sun Brim. I found 2 screws in my junk box
Frank
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2
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Re: NanoVNA case with sun shield
Pretty cool! So fire up the display and take it outdoors. Can you see the marker and readout? For most outdoor antenna work I would have only 1 trace ON. Probably start with log-mag and check for resonance or just set up Smith display and readout R-X values at the frequency of interest. ________________________________ From: [email protected] < [email protected]> on behalf of Frank S <ka2fwc@...> Sent: Sunday, July 14, 2019 11:10 PM To: [email protected]Subject: [nanovna-users] NanoVNA case with sun shield Here is a complete case with the Sun Brim. I found 2 screws in my junk box Frank 1 2
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Excellent, thank you. I'll add a note to my manual copy. Alan ________________________________ From: [email protected] < [email protected]> on behalf of hugen@... <hugen@...> Sent: Monday, July 15, 2019 1:03 AM To: [email protected]Subject: Re: [nanovna-users] Electrical delay [Edited Message Follows] The unit is picosecond.
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NanoVNA case with sun shield
Here is a complete case with the Sun Brim. I found 2 screws in my junk box
Frank
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I designed one, but didnt print it yet (printer is in Use)
I'll print one, and send pictures. It will fit on the "standard" ones with 2 longer screws. I'll order some screws to have on hand if anyone wants to but cases and or shields. It only sticks out about 1 ", I'll see how well it works
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On 7/14/2019 4:33 PM, Oristo wrote: Is there any provision or ability to provide a sun shade. Perhaps overkill, but a 3-inch camera LCD viewfinder hood should work,
e.g. this US $8 Goliton:
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Is there any provision or ability to provide a sun shade. Perhaps overkill, but a 3-inch camera LCD viewfinder hood should work, e.g. this US $8 Goliton:
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I designed a brim that sticks out about 1" I dont have longer screws (yet) but I'll print one and see how it works. Are you in Raleigh?
Frank
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On 7/14/2019 1:57 PM, alan victor wrote: Excellent job Frank! Is there any provision or ability to provide a sun shade. I have not looked into any sort of filter lens that might help reduce wash out of the display. Of course you could just cup your hand over the display but it would be really nice if it could have the contrast close to that of the B/W displays.
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From: [email protected] <[email protected]> on behalf of Frank S <ka2fwc@...>
Sent: Sunday, July 14, 2019 5:32 PM
To: [email protected]
Subject: [nanovna-users] Enclosed case
I made an enclosed case. I have to work on the switch opening.?? It looks
pretty good. I have also designed a back that will hold a bigger battery.
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I can make a "brim' that can connect with the screws on top. I'll play with that next
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On Sunday, July 14, 2019, 1:57:17 PM EDT, alan victor <avictor73@...> wrote: Excellent job Frank! Is there any provision or ability to provide a sun shade. I have not looked into any sort of filter lens that might help reduce wash out of the display. Of course you could just cup your hand over the display but it would be really nice if it could have the contrast close to that of the B/W displays. ________________________________ From: [email protected] < [email protected]> on behalf of Frank S <ka2fwc@...> Sent: Sunday, July 14, 2019 5:32 PM To: [email protected]Subject: [nanovna-users] Enclosed case I made an enclosed case. I have to work on the switch opening.?? It looks pretty good. I have also designed a back that will hold a bigger battery. 1 2 4 4
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Re: What battery will fit the nanovna
This one from Amazon fit neatly and works well. I hot glued it to the
circuit board, and soldered two connections. I have yet to completely
dischage it, so dont know the cycle time. I probably have had 2 hours run
time on a charge so far.
YDL 3.7V 250mAh 502030 Lipo battery Rechargeable Lithium Polymer ion
Battery Pack with JST Connector
73;
Bob KV4PC
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On Sun, Jul 14, 2019, 5:30 AM Oristo <ormpoa@...> wrote: in mine a 602040 Lipo was mounted.. fits very well
it lastt about 4 hours fully charged Mine also came with a 602040 (by measurement),
secured by foam tape with no visible labeling.
Snug fit.
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I do not see a specification for the units on electrical delay. I assume they are sec.
Does anyone know what the handle is?
You can enter numbers and play with the values until the swept display makes sense.
For example, zero out a cable extension. However, it would be nice to know the units in
advance if you have a precise extension in hand.
Thanks, Alan
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Excellent job Frank! Is there any provision or ability to provide a sun shade. I have not looked into any sort of filter lens that might help reduce wash out of the display. Of course you could just cup your hand over the display but it would be really nice if it could have the contrast close to that of the B/W displays. ________________________________ From: [email protected] < [email protected]> on behalf of Frank S <ka2fwc@...> Sent: Sunday, July 14, 2019 5:32 PM To: [email protected]Subject: [nanovna-users] Enclosed case I made an enclosed case. I have to work on the switch opening.?? It looks pretty good. I have also designed a back that will hold a bigger battery. 1 2 4 4
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I made an enclosed case. I have to work on the switch opening.?? It looks pretty good. I have also designed a back that will hold a bigger battery.
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Re: What battery will fit the nanovna
in mine a 602040 Lipo was mounted.. fits very well
it lastt about 4 hours fully charged Mine also came with a 602040 (by measurement), secured by foam tape with no visible labeling. Snug fit.
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Re: What battery will fit the nanovna
in mine a 602040 Lipo was mounted.. fits very well
it lastt about 4 hours fully charged
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Re: What battery will fit the nanovna
the battery in mine measures 26 X 37 X 3.5mm I think it is a couple of hundred mAh. There is some "extra" room for a bigger battery
I an 3D Printing a enclosed case for mine, and will see what will fit. I will post pictures of the case when it is done (back is printing now)
something like 800mAh might be good (H = 8mm W=27mm L=35mm)
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On 7/13/2019 8:53 PM, JIM Rogers via Groups.Io wrote: I just received my nano vna today, from Banggood. It was shipped without a battery. I was wondering what battery others were using. I did see some mention about a cell phone battery, but not model number of battery it was.
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What battery will fit the nanovna
I just received my nano vna today, from Banggood. It was shipped without a battery. I was wondering what battery others were using. I did see some mention about a cell phone battery, but not model number of battery it was.
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Re: Adding Shields and an SD-card slot
Alot of what I use comes from older surplus or junked electronics such as pagers, 2way radios, printers and cellphones. Not only is the price just 'right' but you would be surprised at the useful parts available.
In North America, stores such as Goodwill and Value Village are a great source for items like this.
Regards
Larry
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Improved measurement accuracy?
If you wanted to improve the measurement accuracy
as you approach 900 MHz, then adapter removal is required.
The current 2 cable connection for S11 and S21 cal and measure does
not provide that ability. I suppose one could use the
electrical delay to accomodate the inserted SMA adapter
to move the measurement plane to the proper connector
edge.
Another approach going forward would not require adapter
removal. The 2- cables provided with the 4 track VNA would have a female and
male SMA at one end. Then no adapter is required. The DUT
would now be directly insertable.
For more information on this, search adapter removal VNA.
Alan W4AMV
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Oristo
Bob KV4PC
Jempi ( ON7MA )
