The simple one wire system has a bandwidth of approximately 2: 1, however SMC have wide experience in the design of this type of antenna and are able to offer arrays with 1, 2 or 3 wires per leg to give a bandwidth of up to 4: 1 and, by careful design, gains of 22 dBi are possible.
Rhombic antennas are supplied for powers
up to 2Okw complete with feeders, terrninating resistors or dissipating
lines and insulators for mounting on customers' own masts. Alternatively
SMC can supply complete systems designed to customers' requirements with
hot dipped galvanised steel tubular or lattice masts or aluminium lattice
masts. SMC supply masts painted to ICAO standards complete with lighting
kits if required. Baluns are also available for matching to 50 ohms coaxial
feeders or alternatively 600 ohms transmission line.
|Gain||Up to 22 dBi|
|VSWR||Better than 2 : 1|
|(Baluns available for 50 or 75 ohm coaxial feeders)|
|Power rating||Up to 2Okw|
|Wi.nd speed rating||Up to 120rnph (190kph)|
|Construction||Hard drawn cadmium copper strand, porcelain insulators and acetate spacer insulators for downleads|
|Baluns and antenna loads, either ground or antenna mounted, dependent upon power rating|