Nady 8W-1KU Manual - Page 20

Miscellaneous Tips • For optimal operation with external antennas, low loss RF shielded cable should be used and the length of the cable should not exceed 10 ft. (3 m). • Position the receiver so that it has the least possible obstructions between it and the transmitter. Line-of-sight is best! • The receiver antennas should be • During operation, the transmitter and kept away from any metal surfaces the receiver should be as close as whenever possible as they can reflect possible for optimum results but never away or shield the incoming RF signal. closer than 3 ft. (1 m) as that may • If the receiver's volume control is set too high, it may overdrive the input overload the receiver's input circuitry and cause noises. of the attached audio mixer, causing • For the best operation, the receiver distortion. Conversely, if the output should be placed at least 3 ft. (1 m) is set too low, the overall signal-to- above the ground and 3 ft. (1 m) away noise ratio of the system may be from a wall or metal surface. The reduced, causing noticeable hiss. If transmitter should also be at least 3 ft. such noise occurs, adjust the output (1 m) from the receiver. Keep antennas level of the receiver so that highest away from noise sources such as sound pressure level going into motors, automobiles, neon lights, the microphone transmitter causes signal processors, computers, as well no input overload in the mixer, but as large metal objects. permits the mixer level control to operate in the normal range (not too high and not too low). This provides the optimum signal-to-noise for the • A receiver cannot receive signals from two or more transmitters simultaneously. entire system. • Turn the transmitter off when it is • Before inserting the batteries, ensure that they are inserted with the correct polarity. not in use. For longest life, remove the batteries if the unit is not to be used for a long period as the transmitters draw a tiny residual • Before operation, confirm that the current to maintain the programmed receiver and associated transmitter are settings, even when turned off. Also, tuned to the same frequency group since batteries installed for a long and channel number. time can sometimes corrode and/or • After making a receiver channel change, ensure that the corresponding change is also made on the matching transmitter. leak, causing damage, it is generally recommended that batteries be removed whenever the transmitters are not being used. • Use only brand new alkaline batteries. Do not use "general purpose" carbon batteries. When batteries are weak, replace all the batteries at the same time. Do not mix new and old batteries. 20