I have for sale a receive four square consisting of four DX Engineering AVA-3 Active Matching Units DXE-AVA-3 and Hi-Z Antennas PC-4A V2 4 Square Array Phasing Controller PC-4A Included are two delay lines 40 and 20 degrees and with a 60 foot square this gives 12.3 RDF on 160 and similar on 80 and 40 All as new please contact g3rcq at yahoo.co.uk