Triton IV Model 540

Solid state transceiver covering 3.5 to 30 Mhz with 200 watts input on all bands.

• Digital Readout Model 244
• One-Sixty Converter Model 240
• Remote VFO Model 242
• Crystal Oscillator Model 241
• Microphone & Stand Model 215P
• AC Power Supply Model 262M
• AC Power Supply Model 252M
• Antenna Tuner Model 247
• Noise Blanker Model 249
• CW Filter Model 245
• Additional Crystals Models 212 and 213
• Mobile Circuit Breaker Model 1140

• eHam

• Add QSK Amp Loop Mod
• Triton Power Connector
• Triton VI Service Note SN-1-540 - Using Accessories with the Triton IV
• Add A Crystal Filter To Your Ten-Tec 540! (QST Archive - Must be an ARRL member to access.)

• Triton IV Sales Brochure (1.2 MB)

• Frequency Bands: 3.5 - 4.0, 7.0 - 7.5, 14.0 - 14.5, 21.0 - 21.5, 28.0 - 28.5, 28.5 - 29.0, 29.0 - 29.5, 29.5 - 30.0 MHz. Ten meter crystals furnished for 28.0 - 29.0 MHz.
• All circuits permeability tuned.
• Tuning Rate: Tuning vernier 25 kHz per revolution, typical.
• Direct frequency readout: Slide rule, color coded dial indicates 100 kHz segment, dial skirt increment to 1 kHz. Accuracy +/- 1 kHz from nearest 25 kHz calibration point.
• Calibrator: 25 Khz pulsed calibrator
• Automatic sideband selection, reversible
• VFO Frequency Stability: Less than 15 Hz change per F^o, averaged over a 40^o change from 70^o to 110^o, after 30 minute warmup. Less than 10 Hz change from 105 to 125 VAC line voltage when using TEN-TEC power supply.
• Power Required: 12-14 VDC, 500 mA receive, 18 A maximum transmit.
• Modular Contruction: 10 plug-in assemblies and 7 fixed circuit boards.
• Semiconductors: 47 transistors, 33 diodes, 11 IC's
• Power switch remotely controls power supply.
• Snap-up front feet.
• Contruction: Rigid aluminum chassis, sub-panels, top and bottom. Cycolac plastic side panels.
• Finish: Etched aluminum panel, textured black top and sides
• Dimensions: HWD 4.5" x 13.625" x 13"
• Weight: 12 lbs.

• Mosfet RF Amplifier
• Preselector Resonate Control
• Sensitivity: 0.3 uV for 10 dB S+N/N.
• Filtering: 2.6 kHz bandwidth, 1.8 shape factor at 6/60 dB points. Optional CW Filter - 150 Hz wide, two positions, shape factor 7.2 at 6/60 dB.
• AGC Controlled by RF Gain Control
• Meter Automatically Switched to "S" meter when receiving
• Offset Tuning with Defeat Switch and LED Indicator
• Built-in Speaker in Bottom
• External Speaker/Phone Jack
• Less than 2% Audio Distortion
• WWV Reception at 10 and 15 MHz

• 200 Watts Input, SSB and CW, 100% Duty Cycle
• Instant Band Change, No Tune-up Required
• 8-Pole SSB Filter
• Automatic Level Control on Front Panel, LED Indicator Shows Operation in ALC Region
• CW Sidetone Fed into Audio Amplifier when in CW Mode
• Sidetone Adjustable for Tone and Volume
• Automatic CW Offset of 750 Hz
• Press-To-Talk
• Meter Indicates SWR When Transmitting
• High Impedance Microphone Input
• RF Output Impedance 50 - 75 ohms, unbalanced.