There are more than 5 clones of NanoVNA-H at present, some are with shielding cases. But due to their wrong assembling, the performance decreases. Assembling the shielding case is to isolate effectively, but if they connect the shielding case of CH0 with CH1, it will sharply decreases the performance. Although some clones are with good performance, we could only make judgement after testing. I am quite annoyed, because some irresponsible agents sell inferior clones which marks as my version, it is a serious cheating. I have updated NanoVNA-H to version 3.4 after I received much feedback from the community. It is under assembling&testing at present. It works well till 1.5GHz in the present testing. Meanwhile, I changed the power chip and the battery to 650mAH which further decreases the noise from the usb charging. In addition, it could work 4 hours after these changes. If everything goes well, the new version will come to the market on Dec.20. You could buy from Maggie through this link:
hugen
