Re: Antenna Tuner with NanoVNA incorporated.
Use SimSmith.
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Dragan Milivojevic
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#23216
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Re: Antenna Tuner with NanoVNA incorporated.
Anne, Actually, I'm more interested in determining the matching range of a tuner with various antennas. I've used the AI1H method** of testing various tuners but that's a static resistance method.
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Chuck Carpenter
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#23215
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Re: Antenna Queries de k3eui Barry prior to Nano VNA talk
Nice topics Barry just one small (nitpicking) remark on the wording in 3) Why does every feed line have an SWR of some value at some frequency? Actually it's not the feedline that has an SWR 'of some
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Luc ON7DQ
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#23214
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Re: Any more "development " in bluetooth?
#bluetooth
My NanoVNA-H in the plastic housing (delivered in the black gift box with golden letters) has a big sticker on the back telling it has HW version 3.4 (this is the one with serial THT holes on the left
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Ho-Ro
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#23213
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Re: Crazy display on power-up.
You may have turned off the calibration.? Go to the base menu, click calibrate and make sure the Apply button is checked.? On Wed., 7 Jul. 2021 at 7:44 p.m., Anne Ranch<anneranch2442@...>
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Larry Rothman
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#23212
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Crazy display on power-up.
Is this normal ? I have not checked my nano firmware version , got other "honey does" I am just curious , not panicking , not yet. On initial power -up I get splash of white screen then splash ,
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Anne Ranch <anneranch2442@...>
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#23211
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Re: Any more "development " in bluetooth?
#bluetooth
Originally I did not see much benefits to put the nano into a box, however, after "reading the mail " here I see a "major" issue with the SMD coax connectors breaking off. So I am not after making it
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Anne Ranch <anneranch2442@...>
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#23210
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Re: Any more "development " in bluetooth?
#bluetooth
On the newer -H boards (not H4, as DiSlord has shown) there is a simple set of 4 pads in a row with V+, Rx, Tx, and Gnd. This is eaxctly what's required to connect an HC-05/06/... Bluetooth module.
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Dave VE3LHO
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#23209
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Re: DFU updating
#dfu
That isn't a problem with Linux.
By
n5kzw
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#23208
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Re: Antenna Queries de k3eui Barry prior to Nano VNA talk
I remember wbw a 100 foot piece of -48V 500 MCM being modeled as R+jinductance and C to trough. We were wondering what impulse it would take to raise -48V to 0. Turned out a disgruntled employee was
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Charlie N2MHS <ucfargis1@...>
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#23207
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Re: Any more "development " in bluetooth?
#bluetooth
I did just that on my 2.8" nano but a better idea is to add a header and connect the BT dongle when needed. wrote:
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Dragan Milivojevic
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#23206
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Re: Any more "development " in bluetooth?
#bluetooth
Hello Dislord, Is it possible to install the HC-05 or HC-06 bent down inside the NanoVNA H4-casing? Or will that disturb the Nano? 73/SM6AYM
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Torbj?rn Toreson
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#23205
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Re: Antenna Queries de k3eui Barry prior to Nano VNA talk
A DC source has no complex portion and is not characterized by impedance, only the real term in the R ¡À jX. Further, if no current is drawn from the source, the presence of the R term isn''t there.
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W0LEV
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#23204
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Re: Any more "development " in bluetooth?
#bluetooth
NanoVNA-H/H4 contain free pins named as Rx and Tx (you can see pcb or scheme) Exist connection modules like HC-05 or HC-06 It allow easy connect any device vs UART port over Bluetooth, device need
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DiSlord
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#23203
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Re: Any more "development " in bluetooth?
#bluetooth
Pardon my ignorance I assume yours is software only solution. ( I did not read your posts in detail - so forgive me if it is there ) I see few posts "solder wire to ...." and I would prefer NOT to do
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Anne Ranch <anneranch2442@...>
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#23202
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full 2 port measurements
I was thinking about how to make full two port measurements.? The easy way is to get a coax transfer switch.? But given how cheap the NanoVNA is (i.e. less than the cost of the relay), what about
By
Jim Lux
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#23201
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Re: Any more "development " in bluetooth?
#bluetooth
How connect /g/nanovna-users/message/17758
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DiSlord
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#23200
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Re: Any more "development " in bluetooth?
#bluetooth
You can use my firmware, it allow connect to PC over any Serial TTL module HC-05 or HC-06 Or use any WiFi to TTL Search this forum for more info
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DiSlord
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#23199
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Any more "development " in bluetooth?
#bluetooth
When I joined this forum - abut a year or so ago - I also started my CAT bluetooth project. Hence I asked few questions about if there are any plans to add bluetooth to nanoVNA. I actually went as far
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Anne Ranch <anneranch2442@...>
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#23198
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Re: DFU updating
#dfu
I cheat - I run nanoVNA-saver to find the "port" . After few hick-ups I am getting pretty familiar with nanaoVNA-saver and it really does not bother eif it was written in Python HI HI
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Anne Ranch <anneranch2442@...>
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#23197
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