The Chameleon P-Loop is a popular commercial small transmitting loop antenna. I have bought two to use for propagation experiments using two WSPRlite antenna test systems. 

The P-Loops have not been bought for any special reason - I doubt that they are significantly worse or better than other similar products. My use of them is not an endorsement of the product. 

Measurements here are simply an aide-memoire for my own experiments. They should be used with caution.

Loop conductor 2.6m LMR400. Conductor diameter 7.39 mm.

18-Feb-2017

Loop s/n 951755 SWR measuring instrument KVE60C Rev D4.01

Antenna in clear area. Centre of loop 3.3 m above ground level. Measurements made at the end of the standard supplied loop cable (approx 3.5 m RG58 with inline common mode choke).

The figures can be used to calculate likely performance using online calculators. Click here for one by Owen Duffy VK1OD.