Ranger RCI-6900F HP Tranciever Manual

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RCI-6900F HP / RCI-6900F TB FREQUENCY COUNTER CIRCUIT DIAGRAM 
  

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RCI-6900F HP / RCI-6900F TB ECHO BOARD (EB-99) CIRCUIT DIAGRAM 
 
  

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RCI-6900F HP 
RCI-6900F TB  
 CHAPTER 4 
ALIGNMENT 
 
 
 
4.0 REQUIRED TEST EQUIPMENT 
 
! DC Power Supply (13.8VDC, 20A) 
 RF Wattmeter (25~60 MHz, 100W)  
# Multimeter (Digital) 
$ Automatic Modulation Meter 
% Audio Signal Generator 
& Frequency Counter (100 MHz) 
 RF Signal Generator (100 MHz)   
( Automatic Distortion Meter 
) Oscilloscope (50 MHz) 
* Sinad Meter 
 
4.1 ALIGNMENT PROCEDURES 
This transceiver has been aligned at the factory and does not require any adjustments at...

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ITEM U.U.T. SETTING  ADJUST 
POINT MEASUREMENT 
TX  Power  Set radio to Fr. Pool 2, CH 19 AM TX mode. 
Modulation Off. 
Set radio to Fr. Pool 2, CH 19 USB TX mode. 
AF signal 30mV, 1 KHz to microphone. 
Connect Oscilloscope to TP12. 
Set RF PWR Fully Clockwise. 
Set FINE/COARSE Control to 12 o’clock. L18,L37,L35,
L34 
 
 
 
L35,L34 
 Maximum Output. 
 
 
 
 
Maximum Output 
and Balance. 
AM APC 
 Set radio to Fr. Pool 2, CH 19 AM TX mode. 
Connect Multimeter to TP8. VR15 
 6VDC 
 
SSB APC  Set...

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ITEM U.U.T. SETTING  ADJUST 
POINT MEASUREMENT 
AM Sensitivity  Set radio to Fr. Pool 2, CH 19 AM RX mode. 
Set RF Gain Fully Clockwise. 
Set SQ Fully Counter Clockwise. 
Set VOL Control at 2 o’clock. 
Set NB/ANL/OFF switch to OFF position. 
Connect RF SG to antenna jack  
Frequency 28.915 MHz, 1uV. Mod 30%. 
Set radio to Fr. Pool 6, CH 40 AM RX mode. 
RF SG setting 29.655 MHz. 
Set radio to Fr. Pool 1, CH 1 AM RX mode. 
RF SG setting 28.245 MHz. 
 L2,3,5,6,7,8, 
9,10 
 
 
 
 
 
L5,L6 
 
L5,L6...

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Figure 4-2 Receiver test setup 
 
 
 
 
 
 
 
 
 
 
 
 
  

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Figure 4-3 Main PCB Adjustment Location 
 
 
 
 
 
 
 
 
 
 
 
RCI-6900F HP 
RCI-6900F TB  
 CHAPTER 5 
MAINTENANCE  

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5.0 PRECAUTIONS 
The inherent quality of the solid-state components used in this transceiver will provide many years of 
continuous use. Taking the following precautions will prevent damage to the transceiver. 
 
(i) Never key the transmitter unless an antenna or suitable dummy load is connected to the antenna 
receptacle.  
 
(ii) Ensure that the input voltage does not exceed 16 VDC or fall below 11 VDC. 
 
(iii) During alignment, do not transmit for more than 10 seconds at a time....

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6.0 GENERAL 
Information on most electrical and mechanical parts is included in the parts list. The reference 
designators are in alphanumeric order. 
 
6.1 ORDERING REPLACEMENT PARTS 
Parts orders should be referred to the parts department at: 
 
• Ranger Communications, Inc. 
   3377 Carmel Mountain Road 
   San Diego, CA 92121 
 
Tel: 858-259-0287 
Fax: 858-259-0437