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President Grant Classic Alignmnent | Radioaficion Ham Radio

President Grant Classic Alignmnent

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CB Radio President Grant Classic Alignmnent

TX Alignmnent

Step Condition Adjustment Procedure
1 Mode: TX USB
27.185MHz
S1 and S2 OFF
VR11 Disconnect PC834. Connect DC Current Meter on TP9(+) and TP8(-). Adjust for 50mA.
2 Mode: TX USB
27.185MHz
S1 and S2 OFF
VR9 Disconnect PC834. Connect DC Current Meter on TP9(+) and TP8(-). Adjust for 4mA.
3 Mode: TX USB
27.185MHz
S1 and S2 OFF
VR10 Disconnect PC834. Connect DC Current Meter on TP9(+) and TP8(-). Adjust for 80mA.
4 Mode: TX USB
27.185MHz
S1 and S2 ON
Modulation: 2,4kHz and 500Hz
L46 Set the core of L46 to the bottom, adjust VR12 to minimum.
5 Mode: TX USB
27.185MHz
S1 and S2 ON
Modulation: 2,4kHz and 500Hz
L45 L48 L49 Adjust the cores to obtain max. deviation on RF VoltMeter. Repeat this operation with lower AF levelss on MIC input.
6 Mode: TX USB
27.185MHz
S1 and S2 ON
Modulation: 2,4kHz and 500Hz
L46 Adjut to obtain max deviation on RF Voltmeter. Adjust to obtain a mimimum power difference between Ch.40 HIGH and Ch.1 LOW
7 Mode: TX AM
27.185MHz
S1 ON
Modulation: 1kHz
L37 Adjust to obtain max deviation on S/RF Meter
8 Mode: TX AM
27.185MHz
S1 ON
Modulation: 1kHz
VR12 Adjust to obtain 32,4 Volt on RF VoltMeter
9 Mode: TX USB
27.185MHz
S1 and S2 OFF
VR7 Adjust to obtain minimum difference between USB and LSB
10 Mode: TX AM
27.185MHz
S2 OFF
VR13 Adjust to obtain 10 Watt on RF Power meter
11 Mode: TX AM
27.185MHz
S2 OFF
VR8 Set Switch on S/RF. Adjust to set the S-meter between the Red and Green field
12 Mode: TX AM
27.185MHz
S1 ON
Modulation: 1kHz 30mV
VR14 Adjust to obtain 90 % AM-Modulation on Oscilloscope.
13 Mode: TX FM
27.185MHz
S1 ON
Modulation: 1kHz 30mV
VR5 Adjust to obtain +/- 2 kHz deviation on DeviationMeter.
14 Mode: TX AM
27.185MHz
S1 ON
VR15 Set switch on MOD, AF SignalGenerator to obtain 50% modulation. Adjust levels of AF Signal Generator to 16dB. Adjust VR15 to obtain 100% modulation on S-Meter.

President Grant Classic
RX Alignment

Step Condition Adjustment Procedure
1 Mode: RX AM
Band: Mid.
Channel: 19
L8 Set RF SSG on 27.185MHz, 1kHz 30% AM-mod. Adjust L8 for maximum reading on oscilloscope.
2 Same as STEP 1 L7 L9 L11 L12 L13 L52 L3 L4 L5 Adjust level of RF SSG to obtain 2V on AF VTVM then adjust coils for maximum reading on meter.
3 Same as STEP 1 L8 Adjust to obtain minimum difference between Ch. 40 and Ch. 1
4 Same as STEP 1 VR1 Set the level of RF SSG to 100mV. Adjust VR1 for "5-9" reading on tranceiver meter.
5 Same as STEP 1 VR4 Set SQ on max. Adjust level of RF SSG to 1000mV, adjust VR4 so that the radio signal will apper on tranceiver. Set SQ on minimum.
6 Same as STEP 1
Mode: USB
L14 L15 Set RF SSG on 27.186MHz. Adjust coils to obtain maximum reading on oscilloscope.
7 Same as STEP 1 VR2 Set level of RF SSG to 100uV. Adjust VR2 to obtain "S9" on transmitter meter.
8 Same as STEP 1
SQ: Max.
VR3 Set level of RF SSG to 1000mV. Adjust VR3 so that the audio signal will apper on tranceiver
9 Same as STEP 1
NB/ANL: ON
MID, Ch.18, USB
L1 L2 Set RF SSG on 27.185MHz, 0% Mod., 10uV Level. Connect oscilloscope on D2 and adjust the coils to obtain maximum deviation.
10 Same as STEP 1 L6 Set RF SSG on 27.185MHz with 1 kHz deviation, 1000mV Level. Adjust L6 to obtain maximum.

CB Radio President Grant Classic Alignmnent

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