FCC ID: K66-8800R
Alignment
Vertex Standard Co., Ltd.
2
Required Test Equipment
The following test equipment (and thorough familiarity with its correct use) is
necessary for complete realignment. Correction of problems caused by misalignment
resulting from use of improper test equipment is not covered under the warranty policy.
While most steps do not require all of the equipment listed, the interactions of some
adjustments may require that more complex adjustments be performed afterwards. Do
not attempt to perform only a single step unless it is clearly isolated electrically from all
other steps. Have all test equipment ready before beginning, and follow all of the steps
in a section in the order presented.
Regulated DC Power Supply: adjustable from 10 to 17 VDC, 15 A
RF Signal Generator with calibrated output level at 500 MHz
Frequency Counter: ±0.1 ppm accuracy at 500 MHz
AF Signal Generator
SINAD Meter
Oscilloscope
Spectrum Analyzer
Deviation Meter (linear detector)
AF Milivoltmetr
AF Dummy Load: 4-Ohm, 5 W
DC Voltmeter: high impedance
Inline Wattmeter with 5% accuracy at 500 MHz
50-Ohm non-reactive Dummy Load: 100 watts at 500 MHz
VHF/UHF Sampling Coupler
Alignment Preparation & Precautions
A dummy load and inline wattmeter must be connected to the main antenna jack in
all procedures that call for transmission, except where specified otherwise. Correct
alignment is not possible with an antenna. After completing one step, read the following
step to determine whether the same test equipment will be required. If not, remove the
test equipment (except dummy load and wattmeter, if connected) before proceeding.
Correct alignment requires that the ambient temperature in the repair shop be the
same as that of the transceiver and test equipment, and that this temperature be held
constant between 20 °C and 30 °C (68 °C ~ 86 °F). When the transceiver is brought into
the shop from hot or cold air it should be allowed some time for thermal equalization
with the environment before alignment. If possible, alignments should be made with
