FCC ID: K66VX-2R
Alignment
Vertex Standard Co., Ltd.
2
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.
Required Test Equipment
□
RF Signal Generator with calibrated output level at 500 MHz
□
Deviation Meter (linear detector)
□
In-line Wattmeter with 5% accuracy at 500 MHz
□
50-
Ω
, 10-W RF Dummy Load
□
8-
Ω
AF Dummy Load
□
Regulated DC Power Supply adjustable from 3 to 15 VDC, 2A
□
Frequency Counter: 0.2-ppm accuracy at 500 MHz
□
AF Signal Generator
□
AC Voltmeter
□
DC Voltmeter: high impedance
□
VHF Sampling Coupler
□
SINAD Meter
Alignment Preparation & Precautions
A 10-W RF load and in-line wattmeter must be connected to the main antenna
jack in all procedures that call for transmission, alignment is not possible with an
antenna. After completing one step, read the next step to see if the same test
equipment is required. If not, remove the test equipment (except dummy load and
wattmeter, if connected) before proceeding.
Correct alignment requires that the ambient temperature be the same as that of
the transceiver and test equipment, and that this temperature be held constant
between 20~30°C (68~86°F). When the transceiver is brought into the shop from hot
or cold air, it should be allowed some time to come to room temperature before
alignment. Whenever possible, alignments should be made with oscillator shields
and circuit boards firmly affixed in place. Also, the test equipment must be
thoroughly warmed up before beginning.
Note:
Signal levels in dB referred to in the alignment procedure are based on 0dBm=0.5
μ
V.
