Sad news Alan.
I've been in contact with him in 2011 the last time, got my LF coil's
litz wire from him.
May he rest in peace.

Am 29.05.2016 14:53, schrieb Alan Melia:
> Copied this morning from the UK Microwave Group.
> Those active in the early days of 73kHz and 136kHz will remember
> Derek. I think he was instrumental in acquiring the use of the
> Puckeridge Decca Nav mast after the system closed down. He also
> managed to save several of the the Decca PA units which were put to
> good use on 73 and 136, and large quantities of Litz wire were also
> distributed.
> Alan
> G3NYK
> ---------------
> Hi folks
>
> Sorry to be the bearer of sad news but I have just heard from Peter Head
> G4FYY of the Crawley club that Derek Atter G3GRO passed away yesterday
> in hospital. Until recently Derek, as many of you will know, was very
> involved in microwaves, but his deteriorating health put much of his
> interest out of reach in his later years. I will let you know of his
> funeral arrangements in due course.
>
> Chris G0FDZ
>
>