Ranger RCI-2985DX, User Manual

Page: 22 / 66

RCI-2985
DX
RCI-2995
DX
CHAPTER 6
ALIGNMENT
- 22 -
RCI-2995DX LEVELS ARE SHOWN IN [ ].
ITEM U.U.T. SETTING ADJUST
POINT
MEASUREMENT
TX Power Set radio to 28.000 MHz, AM TX mode.
Modulation off.
Set radio to 28.000 MHz, USB TX mode.
AF signal 30mV, 1 KHz to microphone.
Connect Oscilloscope to TP17.
Set RF PWR Fully Clockwise.
Set Clarifier Control to 12 o’clock.
Set radio to 24.890 MHz and 29.699 MHz. L18,L37,
L35,L34
L35,L34 Maximum Output.
Maximum Output and
Balance.
AM APC
Set radio to AM TX mode.
Connect Multimeter to TP8. VR15 6 VDC
SSB APC
Set radio to USB TX mode.
Connect Multimeter to TP8. VR18 12.5 VDC
BIAS Current Set radio to USB TX mode.
Modulation off.
Connect current meter to TP7(+) and TP9(-).
Connect current meter to TP7(+) andTP8(-).
VR13
VR12 + VR11
10 mA
(50 mA + 50 mA) =
100 mA
AM TX Power Set radio to 28.000 MHz, AM TX mode.
Modulation off.
Connect “short PCB” to TP7 and TP9.
Set RF PWR Fully Counter Clockwise.
Connect RF Power Meter to antenna jack.
VR15
VR19
10W
[50W]
1W [ 2W]
RF Power
Meter Set radio to 28.0000 MHz, AM TX mode.
Set RF Power Fully Clockwise. VR10 Meter Indicator
SSB ALC Set radio to USB TX mode.
AF signal 30mV, 1 KHz to microphone. VR14
25W [100W]
SSB Carrier
Balance Set radio to USB TX mode.
AF signal 30mV, 1 KHz to microphone.
Connect Oscilloscope to antenna jack. VR7 Spurious Emission to
minimum.
CW TX Set radio to 28.000 MHz, CW TX mode.
Plug in CW Key.
Disconnect the Mic Jack.
Connect AC Voltmeter to EXT SP. VR9 200mV (Sine Wave)
AM Modulation
FM Modulation Set radio to 28.000 MHz, AM TX mode.
Set radio to 28.000 MHz, FM TX mode. VR17 90%
4KHz