lead from the power supply. Set meter switch to GRID. Peak EXCITER TUNING, and turn VOX CAIN control full counterclockwise. Short PTT jack J16 to ground to key the KWM-2/2A to transmit. connect signal generator output to points indicated in table 4-1, and adjust signal generator output attenuator until pa grid current just begins to show on the meter. Attenuator reading is signal voltage necessary at that point. Voltages given in the table are norninal and may vary ± 20 percent. Each time, be careful to set signal generator to frequency shown in the table. Oscillator output voltage may be measured with a vacuum-tube voltmeter.

4.3 RECEIVER SIGNAL TRAClNG Table 4-2 lists significant test points and normal signal levels. Figure 4-1 shows location of test points and adjustments. All rf and 1f measure-ments were made be connecting a vacuum-tube voltmeter ts the AVC bus and increasing signal generator output until the AVC threshold is reached. The AVC threshold voltage is the point at which the dc vtvm indcation just chang es with increased signal level. The receiver was tuned to 14.1 MHz for these measurements, and a test signal injected at indicated test points. Signal voltage valucs are taken from signal generator output attenua

TEST POINT	FREQUENCY	VOl.TAGE	TEST POINT	FREQUENCY	VOLTAGE
V1SB-8   V15B-9   V3B-6 V1B-6 V17B-9 V17B-8	455 kHz   455 kHz   455 kHz   455 kHz 2.5-2.7 MHz 3.055 MHz	1.1 volts   * 1 ,4 voIts   8000 microvolts   220 microvolts *0.6 volt 180 microvolts	V1313-8       V13B-9 V7-1 J2 (RCVR ANT or J1 (RF OUT)	High-frequency osclllator Injectlon slgnal (17.155 MHz) 14.1 MHz 14.1 MHz 14.1 MHz	*1.8 to 3.0 volts       55 microvolts   6.5 microvolts   2.3 mlcrovolls
* Oscilator Injectlon voltage, measured wlth rf vacuum-tube voltmeter.

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