Radio Alignment Procedures
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1. Initial setup using the R-2670 Communication Analyzer:
- Connect a BNC cable between the “DEMOD OUT” port and the “VERT/
SINAD DIST/DMM COUNTER IN” port on the R-2670.
- Press the SPF key on the R-2670 to display the “SPECIAL FUNCTIONS
MENU.” Move the cursor to “High Pass,” and select 5 Hz on the soft key
menu. Select 20 kHz for the “Low Pass” setting.
- In the “RF Control” section of the R-2670, enter the frequency displayed on
the RSS screen. Move the cursor to the “B/W” setting and select “WIDE +/
- 100 kHz” on the soft key menu.
- Place the R-2670 cursor in the “Display” zone. Select “AC VOLTS” on the
soft key menu. Move the cursor to the “Range” setting and select “AUTO.”
2. Initial setup using the 8901_ Series Modulation Analyzer:
- Press the FM MEASUREMENT button. (The “Error 03-input level too low”
indication is normal until an input signal is applied.)
- Simultaneously press the Peak – and Peak + buttons. Both LEDs on the
buttons should light.
- Press the 15 kHz LP filter key.
3. Select the TX Deviation Balance alignment screen. The screen indicates the
transmit frequencies to be used. See Figure 10.
4. Left-click the desired frequency field (starting with the highest frequency
shown).
5. Left-click the PTT Toggle button on the screen to make the radio transmit.
The screen indicates whether the radio is transmitting.
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