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I'm also interested in that for Hack RF

Jos

Peter Loron schreef op 8-3-2020 18:57:

Is this the Ron Boyk that I know and have worked with in the past?
*Clyde K. Spencer*

Very interesting! Any idea if there is something similar for the Hack RF One? It has a similar TX/RX range…

-Pete

Hello,

May I suggest to publish the presentation in Power Point format? This
will allow more easy translations to other languages.

I mention Power Point because I think that it is the original format.

Best regards,

Ignacio EB4APL


--
El software de antivirus Avast ha analizado este correo electrónico en busca de virus.

Sorry, I'm a little late, but no, I cannot personally confirm it. The friend who got one is very impressed with it, but is a thousand miles away, so I can't examine it. The seller is a very large supplier of radio/electronics equipment and I feel "should" be reliable. But hey may not know of the variations. The employees there would be hams, but not likely RF network engineers. A potential buyer could ask them directly, and should. Also ask about return privilege if it's unsatisfactory.

Doug

The AirSpy R1 and R1 also enable a spiff spectrum analyzer that covers
roughly 20 MHz through 1.8 GHz. The necessary SW, SpectrumSpy, comes free
as a part of the SDR# download. It will do as little as a 10 MHz span or
as much as 20 MHz to 1.8 GHz in one screen presentation.

No connection to AirSpy other than using a number of their products.

Dave - W?LEV

<>
Virus-free.
www.avast.com
<>
<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Sun, Mar 8, 2020 at 11:43 AM David J Taylor via Groups.Io <david-taylor=
[email protected]> wrote:

For those of you with an ADALM Pluto SDR, here's a 70 MHz - 6 GHz spectrum
analyser & tracking generator:



Looks very interesting. Anyone played with this software?

Cheers,
David
--
SatSignal Software - Quality software for you
Web:
Email: david-taylor@...
Twitter: @gm8arv

--

*Dave - W?LEV*
*Just Let Darwin Work*
*Just Think*

Figured it out -- download mode requires a simultaneous downward press of the jog wheel while powering on. After that, flashing the new firmware was easy.

Paul, W9AC

I recently purchased a nanoVNA-H4 model from R&L Electronics. I am attempting to place the VNA in download mode to flash new firmware. The Config menu shows no such "DFU" option. As such, I'm assuming this model requires a two-pin header jumper on the main PC board. Questions:

1) Am I correct in assuming this model requires me to jumper the header pins on the PC board?

2) Once the new firmware is downloaded and functioning, will the latest firmware have a "DFU" menu option under Config so that a hardware jumper won’t be necessary in the future?

Paul, W9AC

Would a 50 ohm pad between the VNA and the input (50 ohm) to the transformer?

I am currently designing a receiver for the 40 meter band and will be using an NE602 for my mixer. I have most of the individual circuits built (pre-amp, bandpass filter, crystal filter etc) and they are all 50 ohm impedance.

As the NE602 has around 1.5k ohm input impedance I have have wound a 4:22 toroid for the RF input to convert from 50 ohm to 1.5k ohm.

Using my NanoVNA I want to measure the impedance (and return loss / VSWR) of my RF input circuit so I can adjust the windings to get a good match but the NanoVNA outputs around -13 to -9 dBm, this is too high for the NE602 RF input which has a maximum input of about -25dBm.

How would I go about attaching the NanoVNA to the RF input of the NE602 without causing an overload?

Thanks in advance for any suggestions or advise,

Kerr

For those of you with an ADALM Pluto SDR, here's a 70 MHz - 6 GHz spectrum analyser & tracking generator:



Looks very interesting. Anyone played with this software?

Cheers,
David
--
SatSignal Software - Quality software for you
Web:
Email: david-taylor@...
Twitter: @gm8arv

On 3/7/2020 10:43 AM, Jos Stevens wrote:

5 pieces for $3.98 each is no 4 Euro !

erik@... schreef op 7-3-2020 13:37:

Both the original nanoVNA and the V2 fit perfect in the 100x60x25mm? box you can find very cheap on eBay. Example: 5 for 4 Euro

My plastic manipulation skill are not perfect but the unit is well protected and at such a price per box its no problem if you destroy one.
Just make a hole in the click in cover and some holes in the side for USB and SMA. As there is no battery no need to expose the switch.

The linked eBay auction description says 5pcs for $4.00.
It's not each box, but each order of 5 pieces.



--
All the Best & 73
Dale Miller, KC2CBD
Cookeville, Tennessee
Putnam County TN ARES
Emergency Coordinator
Vice President Cookeville Repeater Association
Ham Operator since 1997 (Extra)

stpatrick2@...
Registered Linux User: #317401
Linux since June 2003
Registered Ubuntu User #26423

--

For any of you out there with a nanovna-h. I have just done this storage case for 3d printing

I am working on a taller case to add a 2nd tray for cables
The tolerances are tight. depending on your printer you may have to do a little light sanding for the lid to fit nice as it can be a tight fit.

Yes I believe it is a real H4. I just got it, a couple of weeks ago from R&L.
Here's the version info in the unit.

Version: 0.4.5-7-g57d62f2
Build Time: Jan 1 2020 17:27:30
Kernel 4.0.0
Arch. ARMv7E-M core variant: Cortex-M4F
Port Info Advanced kernel mode
Platform: STM32F303xC Analog & DSP

Here is the info on the label on the back cover of the unit.

Frequency:
50K-300MHZ
300M-900MHz
0.9G-1.5GHz
Power:5V USB (1A Max)
HW version: 4.2
SN: H4-200109xx

Hope this info helps.

73
Pete NU1W

forgot to remove the v2 of the subject its for the normal nanovan not the new v2

just a little project im playing with on the 3d printer. new storage case? for my nano.
?once im happy will put the files on thingiverse the lid is printing at moment
at moment its 2 tier. may poss? make a 3 tier version as well with large open tray for test leads.

Hi Erik
Very interesting to see the NanoVNA-QT software accept Touchstone files for calibration standards and it has both port 1 and port 2 reflection calibration and apparent for different genders. I anticipate the Thru then is a s2p file. This is a big step forward for the NanoVNA V2 compared to NanoVNA
Kind regards
Kurt

-----Oprindelig meddelelse-----
Fra: [email protected] <[email protected]> P? vegne af erik@...
Sendt: 7. marts 2020 18:50
Til: [email protected]
Emne: Re: [nanovna-users] V2 Design #NanoVNA-V2

There are three options.
The V2 comes with its own PC SW derived from the Xana vna.
Next the best known option is nanoVNA saver as it was extended to be able to control the V2 And I have made Tapr-VNA also V2 compatible


--
NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK

On Sat, Mar 7, 2020 at 09:54 AM, <erik@...> wrote:

" The Xana derived SW works well and has to be used if you want to upgrade the firmware without ST-Link or similar."
========================================================================================
Thanks Erik,
You anticipated my question regarding firmware upgrade. Hopefully Gabriel will continue her involvement on the firmware front. Too bad Gabriel didn't follow the NanoVNA-F's use of a virtual disk to perform firmware upgrades.

I don't mind DIY projects that don't involve smd soldering. I suspect a lot of buyers will do like you and build their own cases (3D printed or hand crafted),and operate the SAA-2 connected to a PC without a battery. The cost of cables and calibration standards to 3 GHz probably explains why the distributor decided not to include them. If the buyer purchases cheap aftermarket cables and standards and they don't perform as expected, the SAA-2 distributor can't be blamed.

- Herb

NanoVNA saver basically behaves identical when controlling V1 or V2. At least during a short test
Tapr-VNA also behaves identical
The Xana derived SW works well and has to be used if you want to upgrade the firmware without ST-Link or similar.


--
NanoVNA Wiki: /g/nanovna-users/wiki/home
NanoVNA Files: /g/nanovna-users/files
Erik, PD0EK