Was a bit sceptical with all the clones on the market and the reports you get from some about getting dodgy or DOA units. d. Tap ‘Calibrate’, then follow the on-screen instructions to perform open, short, and load calibration. One issue noted was that after some hours of operation, the combination seems to lock up, not responding to touch, the button or jog wheel.

I say non-technical because I wanted to explain the basic operation of the unit to newcomers to the hobby. If I were to check VHF, UHF and higher, the lead length would come into play and give me false readings. This was fixed by cutting a small block of PVC to fit between the socket and the case lid to block the gap, and fixing it with VHB tape, and low quality case screws were replaced.The NanoVNA-H and H4 is a low-cost and high-performance antenna and vector network (VNA) analyzer that covers the HF, VHF frequency bands from 50 KHz to 300 MHz with a sensitivity of 70dB, the UHF band from 300 MHz to 900 MHz with a sensitivity of 60dB and 900 to 1500Mhz with a sensitivity of 40dB. GHz vector network analyser designed to measure reflection and transmission coefficients of equipment without the need for a large analyser. Quote from: joeqsmith on February 24, 2023, 02:21:17 am Comparing the data provided by one of the LibreVNA owners with the latest LiteVNA hardware. For outdoor antenna work perhaps a more rugged solution is an “L” shaped sheet of thick aluminium with a pair of panel mount N sockets with male SMA plugs on RG316 cables.

Above, my cmd file also spins off an inverted colour version which is better suited to printing and some online display. The latest versions of firmware, drivers and updated documentation can be downloaded from this Google Drive as well as from Github and Github2.Most purchases from business sellers are protected by the Consumer Contract Regulations 2013 which give you the right to cancel the purchase within 14 days after the day you receive the item. Apart from that, NanoVNAs are build for low cost, low part count and tiny size, people at HP and Rohde-Schwarz did it better, 40 years ago. For protection of eHam review readers reviews should not contain links/URLs off-site with the exception of the More info URL.