Alignment

Channels

The following parameters may be adjusted individu-

ally for each channel. For example, minor variations

in the power output across the operating band may

be equalized by following this section’s instructions.

(2) Channels TX :

-[0] TX HI POWER TRIM

This parameter is used to trim Tx power on the displayed channel. From the “(2) Channels Tx” section, select [0] to adjust the “TX Hi Power Trim”

setting(s).

•Use the [t] or [u] key to select the channel to be

adjusted.

•Press the [space] key on the keyboard to activate

the transmitter.

•Press the [p] or [q] key, as needed, to trim the

power output to the power that is programmed

by CE39 channel editor, as indicated on the exter-

nal wattmeter.

•Press [ENTER] to lock in the new data.

-[1] TX LOW POWER TRIM (L1, L2 or L3)

This parameter is used to trim Tx power on the displayed channel. From the “(2) Channels Tx” section, select [1] to adjust the “TX Low Power Trim” setting(s).

•Use the [t] or [u] key to select the channel to be

adjusted.

•Press the [space] key on the keyboard to activate

the transmitter.

•Press the [p] or [q] key, as needed, to trim the

power output to the power that is programmed

by CE39 channel editor, as indicated on the exter-

nal wattmeter.

•Press [ENTER] to lock in the new data.

-[2] MAXIMUM DEVIATION TRIM

This parameter is to trim maximum deviation on the displayed channel. From the "(2) Channels Tx"

section, select [2] to adjust the deviation level.

• Use the [t] or [u] key to select the channel on

which you wish to adjust the deviation.

•Press the [space] key on the computer keyboard

to start alignment. This activates the transmitter,

and injects a 1 kHz test tone.

• Press the [p] or [q] key, as needed, to set the

deviation to the desired value (typically 3.9~4.2 kHz, or 2.0~2.3 kHz for "narrow band" channels).

•When the desired deviation level is attained, press [ENTER] to lock in the new value.

-[2] SUB AUDIO DEVIATION TRIM

This parameter used to is to trim Subaudible de-

viation on the displayed Sub-audio channel. From the "(2) Channels Tx" section, select [2] to adjust

the Subaudible Deviation level.

•Use the [t] or [u] key to select the channel on

which you wish to adjust the Subaudible Devia-

tion.

•Press the [space] key on the computer keyboard

to start alignment. This activates the transmitter,

and injects a subaudible test tone.

•Press the [p] or [q] key, as needed, to set the

deviation to the desired value (typically 0.6±0.1 kHz, or 0.4±0.1 kHz for "narrow band" channels).

•When the desired deviation level is attained, press [ENTER] to lock in the new value.

(3)Channels Rx :

-[0] MANUAL TUNING

This parameter is used to tune the RF front-end

components for the current channel manually.

From the "(3) Channels Rx" section, select [0] to

peak the receiver performance.

•Use the [t] or [u] key to select the channel on

which you wish to adjust the front end alignment.

•Connect the signal generator to the Antenna jack,

and set its level to +20 dBµ EMF (5 µV).

•Press [ENTER] to lock in the new data.

(4)Other :

-[0] BATTERY WARNING LEVEL

This parameter sets the battery warning level.

From the "(4) Other" section, select [0] to align

the battery warning voltage sensor.

•Set the DC supply voltage to 6.5 Volts.

•Press [ENTER] to lock in the new data.

•Set the DC supply voltage to 7.5 Volts.

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