On 06/03/2018 16:23, Gareth's Downstairs Computer wrote:
This is something that Spike has recommended, so perhaps a
couple of loops at the bottom of the garden well away from
the noise-inducing consumer electronics in this row of houses.

When I, with the right moral fibre to get something that
I wanted, took the Morse test at Portishead (Highbridge)
Radio in 1983, and then had a guided tour of the station,
the operators had a 32-position rotary switch to select
one of many receiving aerials pointed to all corners
of the globe.

I wonder if these would have been Wullenwebers / Elephant Cages,
or somewhere a field of rhombics.

What's the recommendation for remote RX antennae, loops or a single whip?

Why a whip?
Why not something fully directional?
Since you are a pi fan like me have a look on google for a pi controlled
direction antenna. Many use old astronomy mounts and while these are
actually for telescopes they also work for a well-balanced yagi or
similar. My wife is an astronomer and has a number of steerable
telescopes I do the building of the computer interface for her.
You can pick up old rs232 controlled mounts cheaply on gumtree.

https://www.raspberrypi.org/blog/con...d-mathematica/

https://www.mups.co.uk/project/software/astrocat/

There are a number of papers in the IEEE Antenna and Propagation Society
library on using a pi to control directional antennas, if you are member
of the IEEE or qualifying society then you will have free access.

Andy