To get the best possible results from your LA800, we recommend that you read this manual and familiarize yourself with the antenna. First, a word of caution: LA800 is a RECEIVE ONLY antenna. Do not transmit with it or its circuitry will be severely damaged, maybe even beyond repair.
2. Included in this package Description Loop element ① Two U-bolts for mast mount ② Control box ③ Control cable (LAN type) 10m ④ BNC (F)/BNC (F) RG-58U coaxial cable 10m ⑤ AC power supply ⑥ Printed instruction manual ⑦ (for Japanese market only) ⑧...
3. Hardware setup Caution! LA800 is a RECEIVE ONLY antenna. Do not transmit with it or its circuitry will be severely damaged, maybe even beyond repair. As pictured below, mount the LA800 loop element to a (non-supplied) antenna mast, using the supplied U-bolts.
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For balcony mount, you can also use typical satellite dish balcony mounts, as pictured below. Such mounts are not supplied by AOR but are usually sold at home-centers. The loop element’s electronic circuitry is housed in an ABS plastic box, water and dust proof to IP65 standard.
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Finally, connect the AC power supply to the control box. LA LA800 Loop (outdoors) Indoors Control box Receiver’s antenna input socket AC power supply To connect LA800 to an antique receiver with 600 antenna terminal, use the optional MC-600 Impedance Matching Transformer.
For example for band switch position 1 (150kHz to 800kHz), it would be roughly peaked on 475kHz. Tuning is most critical above 3MHz. For best performance of LA800 and optimal reception conditions, make sure the selected band is appropriate for the received frequency, and search for the signal peak with the tuning knob.
180 degrees. The null in reception that is located at right angles to the plane of the loop can be used for interference reduction. On the other hand, received signal strength is greatest in the directions indicated by the arrows. Horizontal radiation pattern of LA800 NULL NULL NULL: Angle from which magnitude of the radiation pattern decreases to zero.
By these principles, LA800 responds to the magnetic field rather than the electric field, thus efficiently isolating the low frequency electrostatic noise from the distant signal to be received.
MC-600 Impedance matching transformer Passive impedance matching transformer interface which allows your LA800 to be connected to any antique receiver with a 600 antenna terminal. Supported frequency range: 10kHz to 30MHz. MC-600 has the same isolation feature than the GT-1 accessory .