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General| Brand | Command Technologies |
|---|---|
| Model | Commander II VHF |
| Category | Amplifier |
| Language | English |
Discusses the new piston tuning capacitor, its impact on tuning, and increased output power.
Lists the revised power output ratings for FM/RTTY, CW, and SSB modes of the amplifier.
Details redesigns in control/bias circuits and the elimination of the front panel HIGH/LOW switch.
Specifies the operating frequency range (144-148 MHz) and supported communication modes.
Details AC power requirements and recommended RF drive power levels for operation.
Lists key performance indicators like RF output, impedance, VSWR, harmonic suppression, and distortion.
Covers weight, cabinet size, tube type (3CX800A7), and cooling method.
Introduces the Commander II as a Grounded Grid class Ab2 Linear Power Amplifier with specific design features.
Issues a severe warning about the fatal danger of contacting internal high voltages.
Provides guidance on safely unpacking the amplifier and checking for shipping damage.
Explains how to set jumpers for 234V or 117V AC operation based on user needs.
Warns against servicing without proper safety measures, especially regarding high-voltage capacitors.
Lists essential operational safety rules including cover removal, antenna connection, and drive limits.
Advises on preventing overheating and proper power cord usage.
Instructs users to contact the manufacturer for issues not resolvable in the field.
Details factory wiring for 117VAC and instructions for configuring 234VAC operation.
Provides recommendations for unit placement to ensure adequate airflow and cooling.
Outlines the necessary keying circuit capabilities and proper grounding connections.
Guides on connecting wattmeters, antennas, dummy loads, and exciter RF output.
Details the initial positioning of front panel controls before powering on the amplifier.
Explains the power-on sequence, blower activation, and the automatic delay for plate voltage readiness.
Provides a step-by-step guide to adjusting INPUT, TUNE, and LOAD controls for maximum output.
Offers guidance on operating the amplifier in SSB, CW, FM, and other modes, including drive limits.
Lists all resistors and capacitors with their values and specifications.
Enumerate diodes, switches, and inductors used in the amplifier's construction.
Identifies key miscellaneous parts including the vacuum tube, transformers, and connectors.
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