The YouKits FG-01 and FG-01A antenna analyzers are famous for their portable size and utility! 

YouKits FG-01A Antenna Analyzer 1-35 MHz

YouKits FG-01 Antenna Analyzer 1-72 MHz

BNC to SO-239 adapter

BNC male to SO-239 female adapter.  For conversion to coax cables using standard male PL-259 connectors.  Order quantity 2 for DP-1, quantity 1 for all other YouKits products.