Morgan Systems M-308 single wire/long wire arrestor
For transmitting or receiving applications using open-wire fed systems in single wire or parallel balanced lines, these arrestors use our patented technology in larger housings with insulated terminals. These units are constructed in metallic aluminum chassis cases.
Model 308 is designed for use with open single wire systems such as tuned longwire antennas and random wires added with antenna tuners. It is compatible up to it’s design power rating with a wide variety of input impedances / reactances ranging from about 300 ohms to 600 ohms Like all arrestor protection units these circuits are designed to be ground-mounted and should be installed close to earth entry point connections for best results.
All units use torroidal inductors and present near dead DC short on antenna side of arrestor, constantly draining feedline wires of static and any developed voltage potential feedthrough breakdown voltage from input ports to output ports 4,000 to 6,000 volts. Arrestor units may be placed anywhere in the feedline at ground level without serious change in tuning, but small change may be detectable due “to small” increase in total feedline length caused by size of arrestor case & circuit. "H" models are high power versions rated for 3KW PEP or 1.5KW CSS.
Models 308 and 309 series all rated for frequency range 1-30 MHz, non-DC continuous through ports, polarized. Units 308 & 309 are constructed in plastic watertight NEMA boxes with dimensions LxWxH 4"x4"x2.5". Units include a 2 page owner’s manual.