Description
This is constructed of heavy gauge corrosion-resistant anodised aluminium tubing with a high pressure cast aluminium hub assembly and stainless steel fittings. This combination provides an exceptionally strong antenna, suited for extreme weather conditions. The SMD22 is a ruggedised antenna featuring extremely heavy walled tubing, all-welded aluminium construction and a black epoxy coating to aid in solar heat retention. The SMD24 is a stainless steel version and is ideal in corrosive marine environments. All of the antennas are electrically identical. SMD antenna construction allows for the entire antenna to rest at ground potential, making it highly recommended in lightning prone applications. • Can be phased to provide 3 dBd or 6 dBd gain, in a variety of patterns tailored to suit specific requirements. An extensive range of phasing harnesses is available. • Full bandwidth coverage for both single antennas and phased arrays – ideal in community sites • High strength – SMD2 features anodised aluminium construction and high pressure cast aluminium centrepiece • Rugged and stainless steel versions also available • Normally available ex-stock for immediate delivery • Available in all stainless steel version designed for airband coverage (118-137MHz) with a VSWR at <1.3:1 across this entire band • SMD20-36 and SMD20-41-DIN are an industry-leading PIM rated (-150dBc) antennas, providing low IM noise characteristics for optimum performance.
Specifications:
| Frequency Range | 148 – 175 |
| Power w | 250 |
| Polarisation | Vertical |
| VSWR | <1.5:1 |
| Termination | N female with RG213 cable tail |
| Mounting area | 300mm x 40mm diam. aluminum |
| Construction | Thick-walled aluminum with cast aluminum hub |
| Tuned bandwidth | Full. No tuning required |
| Horizontal Beamwidth | Typically 230° at ¼ l antenna – mast spacing |
| Frequency MHz | 148 – 175 |
| Length [mm] | 900 |
| Brand | RFI |
| Weight [kg] | 1.5 |





Shane Dakota Muir –
Heavy-Duty Products