Re: SWR measurement of CB antenna with PL-259
#newbie
Having a really hard time imagining how you would "provisionally" attach the nanoVNA to the coax. I highly recommend getting an adapter or pig tail. I have purchased adapters and jumper cables from
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Dave W6OQ
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#17919
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Re: SWR measurement of CB antenna with PL-259
#newbie
Adapters make it easy.
But at 27mhz, could use a couple 10cm long test leads
with alligator clips to somehow connect braid to braid
and center conductor to center conductor.
That would work just
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Jerry Gaffke
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#17918
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Re: SWR measurement of CB antenna with PL-259
#newbie
provisionally and replacing it with the PL when I'm done? Or do I have to buy SMA to PL adapter?
>
Get yourself some SMA to PL-259 adapters (actually, what you probably want is SMA to SO-239
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Jim Lux
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#17917
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Re: Newbee with Nano VNA device
Hi Carol,
Thanks. I guess any capacitor can be used in order not to block the frequency or better said a capacitor which lets through my frequency of 174 MHz. Right ?
Just guessing :-)
Rainer
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Rainer <rsfoto@...>
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#17916
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Re: SWR measurement of CB antenna with PL-259
#newbie
Either of those solutions will work fine.? The only caveat is to be careful not to break loose the connector on the nano.? At 27 MHz you don't need to be very careful about lead length and such.
I
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Bob Albert <bob91343@...>
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#17915
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Re: Newbee with Nano VNA device
A schematic diagram posted a similar thread on Reddit https://www.reddit.com/r/AskElectronics/comments/dj6c4t/nanovna_dc_bias_on_inputs/ shows there is a DC current path through resistors on the
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Carol KP4MD
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#17914
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Re: New open source VNA released - excellent performance claimed
On Mon, Oct 5, 2020 at 08:50 AM, OneOfEleven wrote:
On Tue, Sep 29, 2020 at 06:07 AM, Hugen wrote:
We have been working closely with Jan and provided all manufacturing support for Jan's second
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hwalker
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#17913
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Re: New open source VNA released - excellent performance claimed
I'd certainly be interested in buying one when/if they become available.
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OneOfEleven
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#17912
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SWR measurement of CB antenna with PL-259
#newbie
Hello,
I ordered NanoVNA and it should arrive this week. I'm building wire dipole for my CB and I would like to measure its SWR. The problem is that I will be using the PL-259 connector and the
By
vitovsky.petr@...
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#17911
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Re: Newbee with Nano VNA device
Hi,
One more question in regard to my Set up.
It is a DIY 4 element YAGI antenna for the frequency of 174 310 000 Hz and the LNA is Bias Tee powered from the connected RTL-SDR receiver.
Is there a
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Rainer <rsfoto@...>
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#17910
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Re: Newbie here
Hi Ignacio,
Thank you very much.
Will do. As I have build a second antenna with the same characteristics as the one which is working I can measure the one which is not installed on the roof and so
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Rainer <rsfoto@...>
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#17909
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Re: Newbee with Nano VNA device
Hi Carol,
Thank you very much. I will have to dismantle everything then. :-)
regards Rainer
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Rainer <rsfoto@...>
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#17908
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Re: Save a test configuration?
You save your test setup exactly the same way you save your calibration - in the same memory slot.
Do your cal for the freq span you want to test in and save to slot 2 (for example). Slot 0 is
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Larry Rothman
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#17907
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Save a test configuration?
Hi, is there a way to save one's test settings? I know you can save calibrations in 5 places, but what about the settings for a particular test?
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mrutkaus K4QET
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#17906
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Re: nanoVNA Partner
#nanovna_partner
Good evening Gyula,
Thank you for the reply and information, very much appreciated.
Regards 73¡¯s
Gary
VK4OO
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Gary Lane
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#17905
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Re: nanoVNA Partner
#nanovna_partner
Hi Chris,
Since the creator of NanoVNA Partner does not have his own website, I offered to store the file at the time of creation. So it can also be found in my storage (.rar and .zip) format, as
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Gyula Molnar
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#17904
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Re: Newbee with Nano VNA device
Yes, if you wish to measure the characteristics of the antenna.
No, if you wish to measure the characteristic of the amplifier.
Carol
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Carol KP4MD
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#17903
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Re: Newbie here
If I understand it correctly, you have a LNA connected to the antenna and the cable connected to the output goes to your shack and you want to measure from there, right?
In that case you will measure
By
EB4APL
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#17902
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Newbie here
Hi,
Started this new hobby setting up a RMO station and now I want to measure my DIY 4 element Yagi antenna in roder to optimize it.
Is it possible to measure the antenna leaving a Low Noise
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Rainer <rsfoto@...>
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#17901
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Newbee with Nano VNA device
Hi,
Just entered this interesting hobby of Radio SDR for RMO, DIY Antennas and all that stuff.
Got my Nano VNA H today and I have a question. Do I need tot ake off my Low Noise Amplifier for
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Rainer <rsfoto@...>
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#17900
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