Service_Manual_RCI_2995DX_ENG.pdf

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1、RCI-2985DX RCI-2995DX TABLE OF CONTENTS - 1 - PAGE CHAPTER 1 SPECIFICATIONS 1.0 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.1 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2、 . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.2 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 CHAPTER 2 INTRODUCTION 2.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3、. . . . . . . . . . . . . . . . . . . . . . . . . . . .3 2.1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 CHAPTER 3 OPERATION 3.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4、. . . . . . . . . . . . . . . . . . . . . . . . . . .4 3.1 Control USB/LSB : 25W PEP CW/AM/FM : 50W RMS ; USB/LSB : 150W PEP SSB Generation Dual-Balanced Modulation AM Modulation High and Low level Class B, Amplitude Modulation FM Deviation 4 KHz 1 KHz 30mV Audio ( 5 KHz max.) Clarifier Range 5 KHz

5、Harmonic and Spurious Emissions 60dB AM/FM Frequency Response 400 to 5000 Hz SSB Frequency Response 400 to 3000 Hz Output Impedance 50 Ohms Output Indicators RF Meter shows relative RF Output Power 1.2 RECEIVER Sensitivity AM/CW : 0.50V For 10dB S+N/N FM : 0.25V For 12dB S+N/N USB/LSB : 50dB IF Reje

6、ction 80dB Automatic Gain Control (AGC) Figure Of Merit SSB/CW/AM : 80dB for 50mV for 10dB Change in Audio Output Squelch Adjustable-Threshold less than 0.7V Audio Frequency Response 400 to 2500 Hz Distortion 50dB Cross Modulation 50dB Intermediate Frequency 10.695 MHz (AM-1st, SSB), 445 KHz (AM-2nd

7、) Clarifier Range 5 KHz Noise Blanker IF Signal Gate Type Audio Output Power 3W 10% THD Built-in Speaker 8 Ohms, 4 Watts External Speaker (Optional) 8 Ohms, 4 Watts (SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE) RCI-2985DX RCI-2995DX CHAPTER 2 INTRODUCTION - 3 - 2.0 INTRODUCTION The Ranger RCI-29

8、85DX / RCI-2995DX is a solid-state, fully synthesized Amateur 10 and 12 meter dual band base station transceiver with full band coverage from 28.0000 MHz to 29.6999 MHz and 24.8900 MHz to 24.9900 MHz and all mode operation, including: AM, FM, USB, LSB, CW and PA modes. The 10 most commonly used freq

9、uencies can be pre-programmed by the user for easy channel access. 2.1 FEATURES RCI-2985DX RCI-2995DX 25 Watts PEP of Output Power Full Band Coverage All Mode Operation Brightness Control CTCSS Encoder/Decoder (Optional) Repeater/Offset Switch Programmable Frequencies Built-in Dual VFO RIT (RX Incre

10、mental Tuning) Squelch Noise Blanker RF Gain Control RF Power Output Selector External Speaker Connection PA Mode LCD Display Multi-Function LCD Meter 150 Watts PEP of Output Power Full Band Coverage All Mode Operation Brightness Control CTCSS Encoder/Decoder (Optional) Repeater/Offset Switch Progra

11、mmable Frequencies Built-in Dual VFO RIT (RX Incremental Tuning) Squelch Noise Blanker RF Gain Control RF Power Output Selector External Speaker Connection PA Mode LCD Display Multi-Function LCD Meter RCI-2985DX RCI-2995DX CHAPTER 2 INTRODUCTION - 4 - Figure 3-1 Front Panel ? ? ? ? ? ? ? ? ? ? ? ? ?

12、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

13、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RCI-2985DX RCI-2995DX CHAPTER 3 INTRODUCTION - 5 - 3.0 INTRODUCTION This section explains the basic operating procedures for the RCI-2985DX / RCI-2995DX Amateur 10 and 12 meter dual band base station transceiver. 3.1 CONT

14、ROL AND CONNECTIONS 3.1.1 FRONT PANEL Refer to the above Figure 3-1 for the location of the following controls. 1. POWER ON/OFF SWITCH Push this switch to apply power to the unit. 2. CALIBRATE CONTROL This control is used for calibrating the built in SWR meter for accurate SWR readout. Control shoul

15、d normally be left in the fully counter clockwise position for accurate power output meter readings. (This stop is marked “RF”) 3. RF POWER CONTROL This control allows the user to adjust RF power output. 4. RF GAIN CONTROL This control is used to reduce the gain of the RF amplifier under strong sign

16、al conditions. 5. MIC GAIN CONTROL Adjusts the microphone gain in the transmit and PA mode. This controls the gain to the extent that full talk power is available several inches away from the microphone. In the Public Address (PA) mode, the control functions as the volume control. 6. CHANNEL SELECTO

17、R This control is used to select a desired transmit and receive channel. 7. CLARIFIER CONTROL Allows adjustment of the receive frequency above or below the channel frequency. Although this control is intended primarily to tune in SSB signals, it may be used to optimize AM/FM signals as well. 8. SQUE

18、LCH CONTROL This switch is used to eliminate background noise being heard through the receiver which can be disturbing when no signal is being received. To use this feature of your radio, gently turn the switch fully counterclockwise, and then turn clockwise until the background noise is just elimin

19、ated. Further clockwise rotation will increase the threshold level so that only strong signals will be heard. 9. VOLUME CONTROL Turn clockwise to set the desired listening level. 10. MODE SELECTOR This selector allows you to select one of the following operating modes: FM/AM/USB/LSB/CW/PA. RCI-2985D

20、X RCI-2995DX CHAPTER 3 INTRODUCTION - 6 - 11. PHONE JACK Accepts a plug from a headset of 4 to 32 Ohm impedance. Insertion of the plug will disable the built-in speaker and external speaker connected to External Speaker jack. 12. RF/SWR METER Used for two purpose - to indicate approximate transmitte

21、r power when transmitting and antenna SWR (standing wave ratio). Note that the power meter has separate scales for AM, FM, SSB and CW transmission, respectively. 13. SIGNAL/MODULATION METER This meter indicates signal strength when receiving and modulation percentage when transmitting in the AM mode

22、. Modulation readings are most accurate when using maximum output power. The modulation meter does not show movement in FM or SSB, but the Power Output meter (RF/SWR) does indicate RF out in these modes. 14. FREQUENCY DISPLAY The frequency display indicates the frequency of the selected channel you

23、wish to operate on. 15. FUNCTION INDICATORS The indicators permit you to know instantly the mode to which the unit is engaged. RCI-2985DX RCI-2995DX CHAPTER 3 INTRODUCTION - 7 - 3.1.2 PROGRAMMING KEY PAD 16. NB/ANL/OFF SWITCH In the NB/ANL position, the RF Noise Blanker and the Automatic Noise Limit

24、er in the audio circuits are also activated. The Noise Blanker is very effective in eliminating repetitive impulse noise such as ignition interference. 17. ROGER BEEP BUTTON (R.BEEP) In the Roger Beep position, the radio transmits an audio tone at the end of your transmission to indicate that transm

25、ission has ended. As a courtesy to others, use the Roger Beep only when necessary. 18. SPLIT BUTTON (SPLIT) This control activates the offset frequency function. It causes the transmit frequency to be offset either above or below the receive frequency by a user programmable amount to allow operation

26、 of a FM Repeater. 19. PROGRAM BUTTON (PRG) This button is used to program operating or scanning frequencies into memory. See the OPERATION section of the manual for further details. 20. MANUAL BUTTON (MAN) This is used to return the unit to manual mode. 21. SHIFT BUTTON (SHF) This is used to select

27、 100 Hz, 1 KHz, 100 KHz or 1MHz frequency steps. 22. UP/DOWN SELECTOR () These buttons are used in conjunction with the shift key to move the frequency upward or downward to select a desired frequency. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? RCI-2985DX RCI-2

28、995DX CHAPTER 3 INTRODUCTION - 8 - 23. LOCK BUTTON (LOCK) This button is used to lock a selected frequency. Press it to activate the switch. In this position, it disables the Frequency Selector Control, up/down buttons on the front control panel and remote up/down buttons on the microphone. Repressi

29、ng the switch will unlock the frequency. 24. ENTER BUTTON (ENT) This is used to program memory channels. See the OPERATION section of this manual for more information on using this control. 25. MEMORY BUTTON (MEM) This button is used to program memory channels. Detailed information on how to use thi

30、s control is provided in the OPERATION section of this manual. 26. SCAN BUTTON (SCAN) This is used to scan frequencies in each band segment. The OPERATION segment of this manual provides detailed information on using the SCAN control. 27. SWR BUTTON (SWR) This button is used to check SWR. 28. DIM BU

31、TTON (DIM) This button adjusts the display backlighting in four different steps to best match the ambient light. 3.1.3 REAR PANEL Figure 3-2 represents the location of the following connections: Figure 3-2 Rear Panel 1. ANTENNA This jack accepts 50 ohms coaxial cable with a PL-259 type connector. ?

32、RCI-2985DX RCI-2995DX CHAPTER 3 INTRODUCTION - 9 - 2. PA. SPEAKER This jack is for PA operation. Before operating, you must first connect a PA speaker (8 ohms, 4 W) to this jack. 3. EXT. SP. This jack accepts a 4 to 8 ohm, 4 watt external speaker. When the external speaker is connected to this jack,

33、 the built-in speaker will be disabled. 4. CW KEY Used for Morse code operation. Connect a CW key to this jack and set the MODE SELECTOR switch to the CW position. 5. FUSE Accommodates a fuse for AC input circuit protection. Use a 125V 5A fuse for replacement. 6. AC POWER CORD Connect to AC power ou

34、tlet for AC mains supply. 7. FREQUENCY COUNTER OUTPUT JACK This “RCA Phono” type jack provides output for connecting an optional frequency counter so that you can watch the transmit frequency on an external frequency counter. 8. +12 VDC This “RCA Phono” type jack provides 12 VDC power for an optiona

35、l external cooling fan. 3.2 MICROPHONE 1. PTT SWITCH The receiver and transmitter are controlled by the push-to-talk switch on the microphone. Press the switch and the transmitter is activated, release the switch to receive. When transmitting, hold the microphone two inches from your mouth and speak

36、 clearly in a normal voice. The transceiver comes complete with a low impedance (500 ohm) dynamic microphone. 2. REMOTE UP/DOWN SWITCH An operating frequency can be increased or decreased simply by pushing either of these buttons. 3.3 OPERATION 3.3.1 CHANNEL SELECTION Frequency selection for the RCI

37、-2985DX / RCI-2995DX is simple. Select a desired operating frequency by rotating the Frequency Selector, or using the () Up and () Down buttons on the front panel or the microphone. Press the LOCK button to lock into the selected frequency. This will disable the Frequency Selector and the up/down bu

38、ttons on the front panel and the microphone. Repressing the LOCK button unlocks the frequency. Use the SHF button to step frequency in 100 Hz, 1 KHz, 10 KHz, 100 KHz or 1 RCI-2985DX RCI-2995DX CHAPTER 3 INTRODUCTION - 10 - MHz increment when you select a band segment. The frequency step is indicated

39、 by a small triangle directly under the corresponding digit on the frequency display. 3.3.2 MODE SELECTION To select an operating mode on your RCI-2985DX / RCI-2995DX, simply rotate the MODE selector and place it in the desired operating mode position FM/AM/USB or LSB modes are for your voice commun

40、ications. In the CW position, you can transmit CW if you have connected an external key to the accessory jack provided on the back of the radio. In the PA position, the transceiver can be used as a Public Address system. Before operating in PA mode, you must first connect a PA speaker (8 ohms, 4 Wat

41、t) to the jack located on the rear panel. 3.3.3 RF POWER CONTROL This feature allows the adjustment of the RF output power continuously over the range of 1W through 25W (RCI-2995DX : 2W through 150W). 3.3.4 RECEIVE SCANNING Receive scanning allows you to find active frequencies in the entire band se

42、gment. To begin scanning, slowly turn the Squelch control clockwise until the receiver noise disappears. Press the Scan button. The unit should start scanning from the lower to the higher frequencies. Pressing the Scan button again will change the direction of scanning. Each time you press the Scan

43、button, “SCAN+” or “SCAN-” will displayed on the LCD display. The radio will stop on any active frequency for the entire duration of the transmission. When the transmission stops, the RCI-2985DX / RCI-2995DX will wait approximately 2 seconds before it resumes scanning. If you want to deactivate Scan

44、 mode while it is scanning, press the MAN (manual) button or turn the Squelch control counterclockwise until you hear the receiver noise. The Manual button will disable Scan function. 3.3.5 SPLIT FUNCTION This function enables you to offset the transmit and receive frequencies for FM repeater operat

45、ion. The transmitter frequency can offset either higher or lower than the receive frequency. To split frequencies, press the MAN button and the Split button to select either +/- split frequency. If the + split is selected, the transmit frequency will be higher than the receive frequency. If - split

46、is selected, the transmit frequency will be lower than the receive frequency. 3.3.6 MEMORY FUNCTION The RCI-2985DX / RCI-2995DX can store up to 10 most frequently used frequencies (from 0 to 9). To program a frequency into memory, follow the procedure described below: (1) Press the MAN button. (2) P

47、ress the PRG button. (3) Press the MEM button (“MEMORY” and “0” should appear on the left-hand side of the LCD display). Pressing the MEM button will advance the channel number from “0” to “9”. (4) Select the desired frequency you wish to store in memory. (5) Press the ENT button. RCI-2985DX RCI-299

48、5DX CHAPTER 3 INTRODUCTION - 11 - (6) Repeat the same procedure to program other memory channels. 3.3.7 MEMORY CHANNEL SCANNING You can scan and select any of these 10 preset frequencies by following the procedure described below: (1) Press the MAN button. (2) Press the MEM button. (3) Slowly turn the Squelch knob clockwise until the receiver noise disappears. (4) Press the Scan button. The unit will scan from lower to higher frequencies. When you press the button again, it will scan f