For a long time I have used an MRF100, or MRF200 in the ideal position in my set up, (point A in the iamge), with 99% sucess. I only use the front blaster.

I tried later RF boxes (250, 260, 300 and 350), and found that devices a bit further away from the MRF did not work, ones closee to did.

As a test I moved the MRF to a point I would never want it (point B in the image).
From here I got sucess with all devices.

I can only concluded that these later 'better' MRFs have a (much weaker), front blaster, but just wondered if there was anything else I might have missed ?

Thanks

A is by the fireplace
B is on the small table