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Question on remote use of NanoVNA
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I'm curious if it is possible or if anyone has attempted (with any luck) to attach a wifi dongle to their NanoVNA. I'm not sure but think an OTG adapter may be necessary. A question of the power at the port comes into question. I'm thinking this would be useful during those "as installed" antenna tests -vs- taking imprecise measurements on the ground.
Andy |
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If you go back through the archives, I think some folks have tried putting a BT dongle on. The interface is just a serial port, after all. So any of the ¡°remote serial port¡± solutions might work. You¡¯d have to separately power it.
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On Feb 28, 2024, at 5:04?AM, Andrew Harman <Nexus9d9@...> wrote: |
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I have used BT to serial converters, there are pins on the H4 that
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make that easy to do. You can also use wifi to serial converters if you need longer range. On Wed, 28 Feb 2024 at 14:04, Andrew Harman <Nexus9d9@...> wrote:
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Hi Andy,
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Ward, AE6TY, did this and offered to help with the software he used. You can google AE6TY and SimSmith to find his web pages. John, WoGN On 2024-02-28 07:04, Andrew Harman wrote:
I'm curious if it is possible or if anyone has attempted (with any luck) to attach a wifi dongle to their NanoVNA. I'm not sure but think an OTG adapter may be necessary. A question of the power at the port comes into question. I'm thinking this would be useful during those "as installed" antenna tests -vs- taking imprecise measurements on the ground. |
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On Wed, Feb 28, 2024 at 11:56 AM, John wrote:
I have the "H" model. I searched for AE6TY and SimSmith and found a groupsio page, nothing immediately specific to the subject. Looking at the BT to serial converters online it looks like they are 7pin serial and most likely contain a serial uart. Ill have to dig into the interfaces much further. Andy |
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I searched a bit more changing some wording and can back to an old thread here. /g/nanovna-users/topic/wireless_control_of_nanovna/70124668?p=Created%2C%2C%2C20%2C1%2C0%2C0&jump=1 So it looks like the question is rather old and has been played through. There's no simple canned solution ready to go.
How about a firmware change that would allow you to set up the nano, hoist it up with the antenna and it records/saves the measurement on a selectable time delay? Andy |
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Andy,
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My suggestion is to Email Ward, AE6TY, and ask him how he did it. John, W0GN On 2024-02-29 09:11, Andrew Harman wrote:
On Wed, Feb 28, 2024 at 11:56 AM, John wrote:AE6TYI have the "H" model. I searched for AE6TY and SimSmith and found a groupsio page, nothing immediately specific to the subject. |
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The problem has been solved multiple times before. Just buy something
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like this: (BT) or this (WIFI), connect the pins to the H4 (it already has the connections present, just add a header) and you are done. On Thu, 29 Feb 2024 at 16:31, Andrew Harman <Nexus9d9@...> wrote:
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This very subject came to the surface about a year ago. I don't remember
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any resolution to the question of remoting any of the NANOVNAs via an RF or BT link. Problem is even a radiating BT source at +10 dBm would likely overload the VNA and more local BT energy could potentially damage the front ends. The close proximity of a BT (or other RF technology) to remote the NANOVNAs is not a good idea. Dave - W?LEV On Thu, Feb 29, 2024 at 3:11?PM Andrew Harman <Nexus9d9@...> wrote:
On Wed, Feb 28, 2024 at 11:56 AM, John wrote:--I have the "H" model. I searched for AE6TY and SimSmith and found a *Dave - W?LEV* --
Dave - W?LEV |
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Complete nonsense, I have a BT module tapped to my Nano H clone and there
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are no issues. BT works at 2.4G, way out of the range of Nano. On Thu, 29 Feb 2024, 19:24 W0LEV, <davearea51a@...> wrote:
This very subject came to the surface about a year ago. I don't remember |
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I'd sort of agree. I've got my NanoVNA (which is the stacked bare board variety) sitting next to a WiFi access point putting out 100 mW, with no problems.
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-----Original Message-----
From: <[email protected]> Sent: Feb 29, 2024 11:37 AM To: <[email protected]> Subject: Re: [nanovna-users] Question on remote use of NanoVNA Complete nonsense, I have a BT module tapped to my Nano H clone and there are no issues. BT works at 2.4G, way out of the range of Nano. On Thu, 29 Feb 2024, 19:24 W0LEV, wrote: This very subject came to the surface about a year ago. I don't remember |
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But the input of the NANOVNAs is wide open. Enough RF at any frequency
into that port, and compression and false readings will occur. Dave - W?LEV On Thu, Feb 29, 2024 at 7:37?PM Dragan Milivojevic <d.milivojevic@...> wrote: Complete nonsense, I have a BT module tapped to my Nano H clone and there-- *Dave - W?LEV* -- Dave - W?LEV |
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Typical home WiFi router outputs around 20dBm. Attach it to any of Nano
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inputs and see if you get any issues. On Fri, 1 Mar 2024, 00:54 W0LEV, <davearea51a@...> wrote:
But the input of the NANOVNAs is wide open. Enough RF at any frequency |
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And I think the question is really more about ¡°radiated emissions¡± or ¡°radiated susceptibility.
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So let¡¯s say you¡¯ve got your 100 mW 2.45 GHz Tx hanging off NanoVNA which in turn is hanging off the 40m dipole that¡¯s connected to the NanoVNA. How much power actually couples into the VNA? I¡¯m pretty sure isn¡¯t 100 mW. And most of those ¡°remote serial port¡± aren¡¯t radiating 100 mW. On Feb 29, 2024, at 6:01?PM, Dragan Milivojevic <d.milivojevic@...> wrote: |
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On Thu, Feb 29, 2024 at 11:21 AM, Dragan Milivojevic wrote:
As stated I have the "H" not the H4. Is that still the case? |
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On Thu, Feb 29, 2024 at 02:37 PM, Dragan Milivojevic wrote:
Dragan, Personally if Dave believes this I'd like to hear his concern and sort it out myself. As a rule, I wouldn't shoot down anything as nonsense because of an individual result not being in my experience. Andy |
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Explaining the fundamentals takes time, practical example is more suitable
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for this audience. On Fri, 1 Mar 2024, 14:47 Andrew Harman, <Nexus9d9@...> wrote:
On Thu, Feb 29, 2024 at 02:37 PM, Dragan Milivojevic wrote:Dragan, |
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