C-211-G Instruction Manual
R. F. Amplifier
1
C-211-G
R.F. AMPLIFIER
The Mirage C-211-G is the next generation of Power Amplifiers for 222 - 225 MHz.
New features make it the most useful and versatile amplifier available. Features include
automatic power shut-down circuitry for protection against high antenna VSWR, high
temperature and excessive R.F. power input. A newly designed GaAsFET receive pre-
amp provides high gain and low noise amplification for weak signal applications. The
pre-amp includes an attenuator to reduce signal output level. This is useful in preventing
Receiver Overload and subsequent Intermodulation Distortion caused by strong signals.
Provision is made for automatic or remote (external) keying, and for remote control of all
front panel functions using the Mirage RC-1 Remote Control Unit. The Mirage C-211-G
is capable of FM, SSB, and CW operational modes.
SPECIFICATIONS
Frequency Range ................................................................... 222 - 225 MHz
R.F. Input Power (Drive)....................................................... 250 mW to 5 Watts
R.F. Output Power................................................................. 110 Watts with 2 Watts drive
Duty Cycle............................................................................. Intermittent (ICAS)
Modes .................................................................................... FM, SSB, CW
Receive Pre-amp ................................................................... GaAsFET, Gain 21/15 dB-
Nominal. Noise figures less
than 0.6 dB. 1 dB
compression point greater
than -13 dBm input
(Nominal)
VSWR Power Shutdown Point ............................................. 3:1 Approximately
R.F. Input Power Shutdown Point......................................... 5 Watts nominal
Temperature Power Shutdown Point..................................... 175 degrees F.
Keying ................................................................................... Automatic (R.F. sensing) or
remote
(external)
Input/Output Impedance........................................................ 50 Ohms
R.F. Connectors..................................................................... SO-239 (UHF)
Remote keying connector ...................................................... RCA phono
Remote control connector ..................................................... 6 pin Molex
Supply Voltage ...................................................................... 13.8 VDC (for full R.F.
power output)
