Beware of cheap underperforming clones

As of 2023 there are many badly performing clones on the market. V2/3GHz NanoVNA uses parts like ADF4350 and AD8342 which are costly and clones have been cutting costs by using salvaged or reject parts.

See official store and look for V2 Plus4/V2 Plus4 Pro versions only to avoid getting a bad clone. We have stopped selling V2.2 versions since October 2020, so all V2 hardware that are not Plus or Plus4 are not made by us and we can not guarantee performance.

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No output power control on NanoVNA V2 Plus5

j.a.e.rosenberg 2024/04/01 05:23

I just got this device and it works great. I just cannot set the output power.

I am getting -7.5dBm (at 12MHz) regardless of the output power setting.

I get -11.5dBm at 2GHz, also regardless of the output power setting.

Does anyone have a solution?

Best regards,

Hans Rosenberg

Rob Rowlands NZ6J 2024/04/01 11:06

Hi Hans,



I have this NanoVNA too. It’s disappointing that the power is fixed. Im
measuring. -9dBm at 12MHz, regardless of the power levels 0-3 under “ADF 4350
TX Power”.

![image0.jpeg](cid:EEE105F9-1365-45AC-A6F8-BE0C743D0816-L0-001)



The manual I’m using just says it’s for special cases, without elaboration.



Best regards,

Rob Rowlands

415 849 5667



> On Apr 1, 2024, at 9:29 AM, j.a.e.rosenberg@hotmail.com wrote:
>
>

> 

>

> I just got this device and it works great. I just cannot set the output
power.
>
> I am getting -7.5dBm (at 12MHz) regardless of the output power setting.
>
> I get -11.5dBm at 2GHz, also regardless of the output power setting.
>
> Does anyone have a solution?
>
> Best regards,
>
>

>

> Hans Rosenberg

_._,_._,_

* * *

Jim Lux 2024/04/02 06:42

The drive changes are more about harmonic content, I suspect - and optimizing
the drive to the mixer LO ports.





> On Apr 1, 2024, at 9:59 PM, Rob Rowlands NZ6J <rowlands47@gmail.com> wrote:
>
>

> 

>

> Hi Hans,

>

>
>

>

> I have this NanoVNA too. It’s disappointing that the power is fixed. Im
measuring. -9dBm at 12MHz, regardless of the power levels 0-3 under “ADF 4350
TX Power”.

>

> ![image0.jpeg](cid:EEE105F9-1365-45AC-A6F8-BE0C743D0816-L0-001)
>

>

>
>

>

> The manual I’m using just says it’s for special cases, without elaboration.
>

>
>

>

> Best regards,

>

> Rob Rowlands

>

> 415 849 5667

>

>
>

>

>> On Apr 1, 2024, at 9:29 AM, j.a.e.rosenberg@hotmail.com wrote:
>
>

>

>> 

>>

>> I just got this device and it works great. I just cannot set the output
power.
>
> I am getting -7.5dBm (at 12MHz) regardless of the output power setting.
>
> I get -11.5dBm at 2GHz, also regardless of the output power setting.
>
> Does anyone have a solution?
>
> Best regards,
>
>

>>

>> Hans Rosenberg

_._,_._,_

* * *

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