• Has anyone used the eVNA from Minicircuits

    From amal banerjee@21:1/5 to All on Sat Jun 18 04:52:29 2022
    MiniCircuits advertises a eVNA, that consists of a first cut signal processing box, that interfaces via USB cable to a lapyop/PC. The data analysis software for the PC is freely downloadable. The box of electronics needs to be purchased .

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  • From LM@21:1/5 to dakupoto@gmail.com on Mon Jun 20 00:02:18 2022
    I have NanoVna 2. There are several low cost VNAs now https://groups.io/g/NanoVNAV2/topics

    On Sat, 18 Jun 2022 04:52:29 -0700 (PDT), amal banerjee
    <dakupoto@gmail.com> wrote:

    MiniCircuits advertises a eVNA, that consists of a first cut signal processing box, that interfaces via USB cable to a lapyop/PC. The data analysis software for the PC is freely downloadable. The box of electronics needs to be purchased .

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  • From Clifford Heath@21:1/5 to All on Mon Jun 20 09:53:13 2022
    On 20/6/22 07:02, LM wrote:
    I have NanoVna 2. There are several low cost VNAs now https://groups.io/g/NanoVNAV2/topics

    So, you're telling us that you don't have an answer to amal's question?

    Comparing a $200 toy with an $8000 instrument is pretty dumb, don't you
    think?

    On Sat, 18 Jun 2022 04:52:29 -0700 (PDT), amal banerjee
    <dakupoto@gmail.com> wrote:

    MiniCircuits advertises a eVNA, that consists of a first cut signal processing box, that interfaces via USB cable to a lapyop/PC. The data analysis software for the PC is freely downloadable. The box of electronics needs to be purchased .

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  • From Gerhard Hoffmann@21:1/5 to All on Mon Jun 20 05:23:40 2022
    Am 20.06.22 um 01:53 schrieb Clifford Heath:
    On 20/6/22 07:02, LM wrote:
    I have NanoVna 2. There are several low cost VNAs now
    https://groups.io/g/NanoVNAV2/topics

    So, you're telling us that you don't have an answer to amal's question?

    Comparing a $200 toy with an $8000 instrument is pretty dumb, don't you think?

    On Sat, 18 Jun 2022 04:52:29 -0700 (PDT), amal banerjee
    <dakupoto@gmail.com> wrote:

    MiniCircuits advertises a eVNA, that consists of a first cut signal
    processing box, that interfaces via USB cable to a lapyop/PC. The
    data analysis software for the PC is freely downloadable. The box of
    electronics needs to be purchased .

    And Amal's question was exactly WHAT?

    These are NOT toys, and the Mini Circuits is vaporware in
    comparison. Let's see how it fares when it is in the hand of
    users.

    I have a DG8SAQ network analyzer since > 10 years. It is limited
    to 1.3 GHz but delivers wonderful results with things like 12-term
    error correction. I can use it to create Spice models of
    precision crystals including Q of the resonances with built-in
    Windows software. For my Rohde & Schwarz ZVB I first had to
    write substantial software, and I consider the ZVB's user
    interface hostile in comparison.

    Maybe it's better to wait until the new Analog Devices ADL5960
    bears fruit. 20 GHz BW and a simplified synthesizer interface
    look very promising, with on-chip reflection bridge.
    1 chip + 6 GHz synthesizer chip per port.

    Gerhard

    < https://groups.io/g/VNWA >

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  • From Clifford Heath@21:1/5 to Gerhard Hoffmann on Mon Jun 20 17:52:30 2022
    On 20/6/22 13:23, Gerhard Hoffmann wrote:
    Am 20.06.22 um 01:53 schrieb Clifford Heath:
    On 20/6/22 07:02, LM wrote:
    I have NanoVna 2. There are several low cost VNAs now
    https://groups.io/g/NanoVNAV2/topics
    So, you're telling us that you don't have an answer to amal's question?
    Comparing a $200 toy with an $8000 instrument is pretty dumb, don't
    you think?
    And Amal's question was exactly WHAT?

    What's wrong with asking whether anyone has used the Minicircuits eVNA?

    These are NOT toys, and the Mini Circuits is vaporware in
    comparison. Let's see how it fares when it is in the hand of
    users.

    I would expect considerably better performance than any of the NanoVNA versions, even though thosey are credible at their respective price
    points. They have many weaknesses though, such as no filtering on the receivers, making them effectively unusable in environments where you
    have ambient signals.
    I have a DG8SAQ network analyzer since > 10 years. It is limited
    to 1.3 GHz but delivers wonderful results with things like 12-term
    error correction. I can use it to create Spice models of
    precision crystals including Q of the resonances with built-in
    Windows software.

    Yep, Baier knows what he's doing. You won't get useful crystal models
    from a NanoVNA though.

    Maybe it's better to wait until the new Analog Devices ADL5960
    bears fruit. 20 GHz BW and a simplified synthesizer interface
    look very promising, with on-chip reflection bridge.
    1 chip + 6 GHz synthesizer chip per port.

    The price point looks set to be pretty eye-watering though.

    Gerhard

    https://groups.io/g/VNWA    >



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