For all orders exceeding a value of 100USD shipping is offered for free.

Returns will be accepted for up to 10 days of Customer’s receipt or tracking number on unworn items. You, as a Customer, are obliged to inform us via email before you return the item.

Otherwise, standard shipping charges apply. Check out our delivery Terms & Conditions for more details.

LibreCAL, the electronic calibration kit for LibreVNA, enables direct invocation in LibreVNA-GUI for quick calibration, eliminating the tedious manual operations of mechanical calibration kits

LibreCAL has been calibrated with metrology-grade calibration kits. The calibrated S11 directivity is better than 50dB within 3GHz and better than 40dB above 3GHz, outperforming some mechanical calibration kits without calibration parameters

Specifically designed for LibreVNA, its internal calibration parameters can only be called by LibreVNA currently and not applicable for other VNAs. Note that due to leaks inside the electronic calibrator, the electronic calibration cannot be performed and can be manually added using the mechanical calibration if necessary

Mechanical calibration kits can be used to verify the directivity of LibreCAL and add additional isolation calibration, ensuring more accurate measurement results

[Paking List] 1* LibreCAL, 4* SMA-JJ RG405 RF Cable, 1* USB Type-C Data Cable, 1* Storage Bag