FCC ID: K66GX1280S
Alignment
Vertex Standard Co,. Ltd.
2
Inline Wattmeter with 5% accuracy at 200 MHz
Regulated DC Power Supply: 13.8 VDC, 10A
50-ohm Non-reactive Dummy Load: 30W at 200 MHz
Frequency Counter: >0.1 ppm accuracy at 200 MHz
AF Signal Generator
DC Voltmeter: high impedance
VHF Sampling Coupler
AF Dummy Load: 4 Ohms, 10 W
Oscilloscope
Spectrum Analyzer
GX1260S Marine Transceiver
Alignment Preparation & Precautions
A dummy load and inline wattmeter must be connected to the main antenna jack in
all procedures that call for transmission. 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 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°F and 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 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 this procedure are based on 0 dBµ = 0.5 µV
(closed circuit).
Overview of Test Mode
The test mode has been build in the microprocessor in order to adjust and confirm
the performance of transceiver.
The purpose is to adjust transceiver simply and to confirm the performance of
transceiver smoothly.
(a) Expansion channels “EXP01 - EXP07” will be set as follows:
