Elecraft XG2 Manual - Manual (Page 4)

4

Mount the crystals, X1, X2 and X3 in their indicated positions.

Solder a scrap of wire to the top of each crystal case, and solder the other end of this wire
to the square pads near BT1. Limit soldering time to 3 seconds, since excessive heat may
damage the crystal.

Install 3 mounting feet on the back side of the board as shown in the left side photo on
page 8.
Initial Test

Set S1 (small slide switch) to the OFF position.

Set S3 to the “40” position.

Set S2 (large slide switch) to the 50 µV position.

Install the Lithium battery into its holder. Make sure that the (+) side of the
battery is UP.

If the unit to be tested is a transceiver, set its power output for minimum and
disconnect the key, keyer, and microphone to prevent accidental transmit into the
XG2's output jack.

Connect the output of the XG2 to the antenna jack of the receiver or transceiver.

Tune the receiver to 7040 kHz. DO NOT TRANSMIT.

Turn on the XG2. The round red LED will light.

The XG2 output should be heard on the receiver.

Turn the XG2 off to conserve battery life.
Using the XG2
Indicator LEDs
 Power-on LED (red): Turns ON when the XG2 is in use and the battery voltage is
satisfactory. Turns OFF if the battery voltage falls below about 2.4 volts. If this
happens, change the battery to ensure accurate output levels.
 Transmit warning LED (red): Turns ON as a warning if you accidentally transmit
into the XG2's output jack at 100 milliwatts or more. Note: Some protection is
provided by the back-to-back diode limiter formed by D2 (red LED) and D1. This
circuit has been tested at up to 10 watts for 2 seconds.