Elecraft XG3 RF - Manual (Page 5)

5
Specifications
Frequency Range: 1.5-200 MHz range, with a typical resolution of 1-24 Hz. (Up to 1400
MHz via harmonics)
Frequency Stability: ±50 ppm, maximum.
Signal Characteristics: Highly stable RF square wave; phase noise -105 dBc/Hz
Reverse Power: Shunt diodes and a fusible pc trace link provide limited protection. See
Reverse Power, pg 14.
Preset Frequencies: 12 frequencies preset at the factory - one in each Amateur band from 160
through 2 meters. Frequencies may be changed using a personal
computer (pg 8).
Sweep Mode: Two frequency ranges preset. The sweep speed and the frequency
increment for each step may be programmed using a personal computer
(pg 8).
Computer Interface: RS-232; Allows changing the preset frequencies and operating the XG3
from a personal computer using the XG3 Utility program available free
from Elecraft. Note: For information on writing your own XG3 control
programs, see XG3 Remote Control Commands on pg 18.
Selectable Output Levels: Four levels, calibrated from 1.5 through 200 MHz:
0 dBm (± 3 dB), -33 dBm, -73 dBm, - 107 dBm (± 1 dB typ).
Output Impedance: 50 ohms.
Power: Internal 9-volt battery or external 11-14 VDC supply
Power Consumption: External supply, 60 mA maximum at 0 dBm output. Less at lower output
levels.
Internal battery drain, up to 50 mA at 0dBm output, 25 mA typical at
lower output levels.
Programmable automatic power shutoff.
Frequency Resolution:
Limited by the internal PLL divisor precision. Typical values are as
follows:
1.5 to 66 MHz:
1 to 10 Hz.
67 to 159 MHz: 1 to 12 Hz.
160 to 200 MHz:
1 to 24 Hz