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ranges listed in the band-switch position column of table 2-3. For example, the E trimmers are normally peaked on 10 meters but may be reset to favor another portion of band E, which covers 22.0 to 30.0 MHz.

At the extremities of some bands the pa loading may be either too heavy or too light. This condition can be corrected by the following procedure:

a. If the plate current is too high, add a capacitor to the output to increase the output capacity and reduce the output current.

 
Warning

Be sure that all power is disconnected before working in the pa compartment. Dangerous voltages are present with power on.

b. If plate current is too low, reduce the output capacity and increase the output current as follows: Remove the KWM-2/2A cover. Adjust trimmers C152, C153, C154, and C155 as necessary to increase output current. Refer to paragraph 4.6.15 for pa loading trimmer adjustment. Adjust the trimmers for a compromise that best suits your operating frequency.



Table 2-3. Crystal frequencies and Operating Bands

KWM -2/2A
OPERATING FREQUENCY
(MHz)
CRYSTAL
FREQUENCY
(kHz)
Band-switch setting
1A. 2A or 3A
 
    3.4 to 3.6
    3.6 to 3.8
    3.8 to 4.0
    l.0 to 4.2
    4.2 to 4.4
    4.4 to 4.6
    4.6 to 4.8
    4.8 to 5.0
     
     
     
     
    *6555.0
    *6755.0
    *6955.0
    7155.0
    7355.0
    7555.0
    7755.0
    7955.0
Band-switch setting
1B or 2B

6.6 to 6.8
6.8 to 7.0
7.0 to 7.2
7.2 to 7.4
7.4 to 7.6
7.6 to 7.8
7.8 to 8.0
8.0 to 8.2
     
     
     
    9755.0
    9955.0
    *10155
    *10.355
    10555
    t0755
    10955.0
    11155.0
KWM -2/2A
OPERATING FREQUENCY
(MHz)
CRYSTAL
FREQUENCY
(kHz)
     
     
     
    8.2 to 8.4
    8.4 to 8.6
    8.6 to 8.8
    8.8 to 9.0
    9.0 to 9.2
    9.2 to 9.4
    9.4 to 9.6
 
 
    11355.0
    11555.0
    11755.0
    11955.0
    12155.0
    12355.0
    12555.0
Band-switch setting
1C, 2C, or 3C

    9.4 to 9.6
    9.6 t o 9.8
    9.8 to 10.0
    10 to 10.2
    10.2 to 10.4
    10.4 to 10.6
    10.6 to 10.8
    10.8 to 11.0
    11.0 to 11.2
    11.2 to 11.4
     
     
     
    12555.0
    12755.0
    12955.0
    13155.0
    13355.0
    13555.0
    13755.0
    131955.0
    141155.0
    14355.0

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