Procom 5.17m Wide-Band Receiving Whip Antenna for the LF, MF and HF Bands SSB This antenna provides a very efficient means of establishing a universal, wide-band 50 Ω receiving aerial system for the complete LF, MF and HF bands in one unit. The antenna consists of a high-capacitance, 5 m long glass fibre antenna element with a frequency-compensated wide-band impedance transformer mounted in the bottom end. The transformer converts the widely varying antenna impedance to a constant 50 Ω, making it possible to use length-independent, shielded, standard RG 58 C/U or RG 213/U as downlead cable to the 50 Ω receiver. The antenna is protected against noise pick-up running on the outside of the downlead cable, and it is protected against static by DC-grounding. Moreover, the 50 Ω receiver and the matching transformer itself are protected against RF overload and violent discharges by an air spark gap (approx. 1 kV), a gas filled spark gap (90 V) and a resistance network. To prevent electrolytical corrosion, the coaxial cable braid is only capacitively coupled to the earth connection. Installation is easily carried out by means of the two hot galvanized mast clamps. The antenna has very small weight and minimum wind surface, thereby requiring only a minimum of mast strength. The glass fibre construction gives a stiff and self-supporting structure with extremely good resistance against the corrosive marine environment with UV-radiation, salt, exhaust gases and ice formation as primary factors. RX 5000 is a maintenance-free and very reliable construction. SPECIFICATIONS ELECTRICAL -MODEL RX 5000 -ANTENNA TYPE Self-supporting wide-band receiving whip antenna for LF, MF and HF bands -FREQUENCY RANGE 100 kHz – 30 MHz -IMPEDANCE 50 Ω -POLARISATION Vertical MECHANICAL -TEMP. RANGE -30° → +70° C -CONNECTOR “N”-female -WIND SURFACE 0.082 m² -WIND LOAD 108 N @ 150 km/h -MAX. WIND SPEED 200 km/h -COLOUR Marine white MATERIALS -Shroud : Glass fibre, stainless steel and chromed brass -Housing: Polycarbonate TOTAL HEIGHT Approx. 5.17 m (incl. box) DIA. IN TOP END 5 mm DIA. IN BOTTOM END 20 mm WEIGHT Approx. 2.9 kg (clamps inclusive) MOUNTING With side-mounting clamps on 35 – 65 mm dia. mast tube | 
