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30-day Returns Policy

When you receive a calibration kit, it can be expected to take some time to set up your VNA to use the kit if you have never done this before. If there are any technical problems, then please let us know. We can be contacted by phone or email. You can also look in our list of frequently asked questions (FAQ). Most problems can be resolved. Kirkby Microwave have sold hundreds of VNA calibration kits, which have been used on many different vector network analyzers.

However, if you have changed your mind about the purchase, we offer a 30-days returns policy. Simply let us know you wish to return it, send it back, and once received we will refund you by the same method payment was made. If items are returned from outside the European Union, it is ESSENTIAL the goods are marked as returns. Otherwise we would need to pay customs charges to get the item back into the UK.

We expect the purchaser to pay the return carriage charges to Kirkby Microwave, but we will refund both the original purchase cost and the original carriage charges paid.


  1. Items which have been made to order, are excluded.
  2. Type N kits, if supplied with new 18 GHz Keysight loads are excluded, as these are non-standard items, made to order. We do not stock kits with 18 GHz loads, due to their high cost.

This does not affect your statutory rights.

Kirkby Microwave Ltd is registered in England and Wales, company number 08914892. Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, Essex, CM3 6DT.