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Elecraft XG2 Manual User Manual

Introduction, Specifications, Parts inventory

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1

E

L E C R A F T

XG2

R E C E I V E R T E S T O S C I L L A T O R

R e v F , M a r c h 2 8 , 2 0 1 2

Copyright © 2012, Elecraft, Inc., All Rights Reserved

Introduction

The Elecraft XG2 is a crystal oscillator with accurate 1 µV and 50 µV output levels. It's
ideal for receiver test and alignment. The 1-µV output can be used to measure a receiver's
sensitivity, while the 50-µV output is useful for S-meter calibration. Switch-selected
output frequencies of 3579, 7040, and 14060 kHz provide convenient test signals on 80,
40, and 20 meters; harmonics of these frequencies can be used for measurements on
higher bands. The XG2's unique oscillator stage runs at an extremely low level,
eliminating the need for interstage shielding. A red LED is provided to indicate power-on
and another red LED is provided to alert the operator to accidental transmit into the
XG2's output.

Specifications

RF Output Level

1 µV (-107 dBm) and 50 µV (-73 dBm) into 50 ohms

Output Accuracy

Better than +/- 2 dB at 25 deg. C (+/- 1 dB typical)

Frequency

3579.5, 7040.0 and 14060.0 kHz +/- 1 kHz at 25 deg. C

Reverse Protection

5 watts for 4 seconds, 10 watts for 2 seconds (typical; not
guaranteed)

Current Drain

About 250 µa from on-board 3-V, 220 mA-hr battery (est. life 800
hours)

Size

PC board: 3"L x 1.5"W; 4.3"L including BNC connector

Parts Inventory

Ref Qty

Description

Part

#

R2

1 Res, 18.7 k 1% (brn, gry, vio, red, brn)

E500127

R3 1

Res,

16.5

Ω 1% (brn, blu, grn, gold, brn)

E500122

R4 1

Res,

57.6

Ω 1% (grn, vio, blu, gold, brn)

E500124

R5 1

Res,

57.6

Ω 1% (grn, vio, blu, gold, brn)

E500124

R6, R7

2 Res, 348 Ω 1% (org, yel, gry, blk, brn)

E500123

R8

1 Res, 1.24 k 1% (brn, red, yel, brn, brn)

E500126

(parts inventory continues on next page)