Installation (Continued)
4.Mount the microphone bracket near the radio in an easily accessible spot using the two screws provided.
Ignition Noise Interference
With weak signals, you may experience interference of the signal by background noise. This radio has NB and ANL controls which will help reduce background noise from sources such as your ignition system. However, background electrical noise may come from several sources and all noise may not be eliminated. With extremely weak signals, you can operate this radio with the engine turned off, which should improve reception. If the ignition noise level is too high to allow proper operation under most conditions, you should have your installation of the radio checked by a qualified technician.
Antenna
This radio has a jack in the rear for a standard
To improve performance, your antenna should be matched to your radio. Your antenna can be adjusted so that it matches your radio.
External Speaker
The external speaker jack (EXT. SPK) on the rear panel is used for remote receiver monitoring. The external speaker should have 8 ohms impedance and be able to handle at least 4watts. When the external speaker is plugged in, the internal speaker is disconnected.
Public Address
To use the Public Address (PA) function, first connect an external speaker to the PA. SP. Jack on the rear of the radio. See the above specifications for a proper external speaker. Keep the speaker away from the microphone to avoid acoustic feedback.
Chapter 3 Operation
Controls and Indicators
Front Panel
11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 |
Ranger
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
1.SQUELCH CONTROL: This control is used to control or eliminate receiver background noise in the absence of an incoming signal. For maximum receiver sensitivity, it is necessary that the control be adjusted only to the point where the receiver background noise is eliminated. Turn fully counterclockwise and then slowly clockwise until the receiver noise just disappears. Any signal to be received must now be slightly stronger than the average received noise. Further clockwise rotation will increase the threshold level that a signal must overcome in order to be heard. Only strong signals will be heard at a maximum clockwise squelch setting.
2.ON/OFF VOLUME CONTROL: Turn clockwise to apply power to the radio and to set the desired listening level.
3.RF GAIN CONTROL: This control is used to reduce the gain of the RF amplifier under strong signal conditions.
4.MIC GAIN CONTROL: Adjust the microphone gain in the transmit mode. This control is used to set the audio level of the microphone for maximum performance and clarity.
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