Chapter 4 Operation
Front Panel
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RCI−5054DX
| NB/ANL | R.BEEP |
| SPLIT |
| PRG | MAN | SHF | ||||
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| SCAN |
| MEM | ENT | LOCK |
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35
24
RF PWR | MIC | VOL | SQ |
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CLR | RF GAIN | CW | PA |
LSB
USB
AM
FM
5. 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. |
6. RF GAIN CONTROL: This control is used to reduce the |
receiver's |
9 | 10 | 11 |
| 12 | 13 | 14 |
| 21 |
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24 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 6 | 8 |
1.FREQUENCY SELECTOR: Used to set the desired transmit and receive frequency. The frequency is digitally displayed in the LCD window next to the selector. The FREQUENCY SELECTOR knob next to the LCD display, allows changing each digit on the frequency display by first placing the frequency display cursor (using SHF button) below the desired digit and then turning the selector knob.
2.RF POWER CONTROL: This control adjust the Transmitter’s RF power output level.
3.MIC GAIN CONTROL: This feature adjust the microphone gain for the transmit and PA modes. Experiment with this control for the setting that will provide best audio quality. Avoid overmodulation, which causes interference to adjacent stations and “splatter”.
4.ON/OFF VOLUME CONTROL: Turn clockwise to apply power to the radio and to set the desired listening level.
7. CLARIFIER CONTROL: Allows variation of the receive frequency |
above and below the selected receive frequency as shown on |
the display. This control is intended primarily to tune in SSB |
signals when communicating with several stations that may not |
be exactly on frequency. It may also be used to optimize AM/FM |
signals as described in the operating procedure paragraph. The |
clarifier can adjust the receive frequency ±2.5KHz but does not |
affect the transmit frequency or the frequency display. |
8. MODE SWITCH: This switch allows you to select one of the |
following six operating modes: FM, AM, USB, LSB, CW and PA. |
9. NB/ANL BUTTON (NB/ANL): The noise blanker (NB) is very |
effective in eliminating repetitive impulse noise such as ignition |
interference. In the ANL position, the AUTOMATIC NOISE |
LIMITER also limits noise at the receiver audio stages. |
10. ROGER BEEP BUTTON (R.BEEP): This switch activates the |
ROGER BEEP circuit, when its function is selected. When |
enabled, the radio automatically transmits an audio tone each |
time you release the PTT. This indicates the end of each |
transmission so that stations who may be having trouble |
receiving will know that you have finished transmitting. This |
feature is sometimes used in weak signal conditions or other |
- 6 - | - 7 - |
