Transcription of INSTRUCTION MANUAL - PE2ER
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LEADER TEST INSTRUMENTSMODEL LIM-870 ANTENNA IMPEDANCE METERINSTRUCTION MANUALLEADER ELECTRONICS CORPR econstructed by PE2ER 1. GeneralThe Leader LIM-870 Antenna Impedance Meter is basically a capacitor type SWR ( standing Wave Ratio) bridge. Both arms of the bridge have been made variable. It is possible to measure radiation resistance and resonant frequency of an antenna, transmission line impedance, approximate standing wave ratio and optimum receiver LIM-870 may be operated from any low power RF source not exceeding Watt. The wide frequency range and portability of a transistor dip meter such as the Leader LDM-815 make it ideal for use with the Antenna Impedance build-in RF amplifier reduces the RF Input power needed for the bridge, to improve frequency SpecificationsAntenna Impedance0-1000 150 MHzRF Power Watt maximum3.
1. General The Leader LIM-870 Antenna Impedance Meter is basically a capacitor type SWR (standing Wave Ratio) bridge. Both arms of the bridge have been made variable.
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Understanding SWR by Example, Standing wave ratio, And Quarter Wave Ground Plane Antenna, Quarter wave ground plane antenna, Optimum Height for an Elevated HF Antenna, Wave, John, Aircraft Communications and Navigation Systems, Advanced Transmission Line Modeling Techniques, Classic Transmission Line Enclosure Alignment Tables