Triton IV Model 540

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Description

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

Accessories

  • 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

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Specifications

General

  • 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 Fo, averaged over a 40o change from 70o to 110o, 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.

Receiver

  • 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

Transmitter

  • 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.