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Summary of Contents for K&M Burkhard Reuter RLA4GS
- Page 1 Specifications and Operator Manual of antenna RLA4G/GS Version: 1.4 Created: 20.06.2020 Konstruktion & Musterbau Burkhard Reuter Ziegelstraße 54 06862 Dessau-Roßlau...
- Page 2 Specifications RLAG Single loop dimensions: About 500 mm x 500 mm Amplifier dimensions (W x H x D): 140 mm x 60 mm x 120 mm (without connectors) Frequency range: 50 kHz … 30 MHz Average noise level (without loops): <= -145 dBm/Hz (at 10 MHz) IP3: >= +32 dBm (2x -6 dBm measuring tone at 10 MHz)
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Page 3: Safety Precautions
Safety precautions Please always keep the following safety precautions in mind! Never connect the device to any other voltage than indicated in the specifications. Under no circumstances should the device come into contact with the mains voltage of 230 V ~! It is essential to observe the lightning protection regulations for the outdoor operation of electrotechnical systems! The antenna must be properly equipped with lightning protection when installed outside a protected area (e.g. - Page 4 Operator Manual The RLA4G is a cross loop receiving antenna for fixed outdoor installation. It operates broadband as a non-tuned active antenna with an integrated amplifier. The power is supplied via the HF cable. The two loops consist of coaxial cables for the symmetrical control of two differential current amplifiers with a low- impedance input.
- Page 5 Assembly of the antenna RLA4G The RLA4G is supplied with removed antenna elements. Component set for an antenna RLA4G The component set consists of the following parts: 4 pieces of antenna elements (each half of a loop), coaxial cable LMR-400 with TNC connectors of •...
- Page 6 formed. At least one of the holes must be kept clear when mounting the antenna to a bracket. If the antenna is not absolutely horizontal, this must be the hole furthest down (this is where condensation collects). Holes in the bottom plate provide ventilation and drainage The assembly of the dismantled antenna is quite simple and should be carried out in the following order (disassembly in reverse): Screw the connecting rod into the amplifier housing.
- Page 7 corresponding to the RX input is required (if an RSW control unit is used, a BNC connector). Important notes: The TNC fittings should be tightened securely to ensure watertightness. Normally, manual force should be sufficient (always ensure axial alignment / easy screwability without tilting the connector!).
- Page 8 This is partly compensated by the much thicker inner conductor of the cables (lower ohmic resistance, reduction of inductance with increase of conductor diameter). Overall, the reception performance of the RLA4GS above approx. 7 MHz (40 m band) is about the same as that of the RLA4G.