Many thanks to all who, as typical of the list, sent relevant and interesting
posts. I would like to comment on some as follows:
IM: the confluence website - crazy but yet more fun.
RM: the old civil 'degradation' of accuracy of GPS was removed many years ago.
Dedicated GPS receivers are
Hi Doug:
I recently got a used CSI LGBX Pro DGPS Receiver.
This is a CSI long wave beacon receiver with an integrated Ashtech 12 channel GPS receiver iwth an antenna that receives
both of them.
The display option with the most resolution is dddmm. and it seems to be
good to less than one
