Home >> Hobbies >> Ham Radio

Ten Tec Triton IV Specifications

The Ten-Tec Triton IV, also known as the Model 540, is a basic but high-performance high frequency (HF) transceiver made in the 1970s. Although it lacks many features found on today's HF rigs, such as digital frequency control and DSP noise reduction circuitry, the Triton had an excellent receiver and a good set of crystal filters. For this reason, Ten Tec Triton IV radios are still in demand today.

Frequency Coverage
- The Triton IV covers the following bands: 75/80 Meters 3.5 to 4.0 MHz, 40 Meters 7.0 to 7.5 MHz, 20 Meters 14.0 to 14.5 MHz, 15 Meters 21.0 to 21.5 MHz, and 10 Meters 28.0 to 30.0 MHz in four segments.
Receiver
- The receiver is superheterodyne -- it converts the transmitted signal to a homogeneous frequency, where it creates an ultrasonic signal that is rectified and amplified to reproduce the sound that was broadcast from the transmitter end -- just like essentially every radio and television. The receiver's fixed intermediate frequency is 9MHz frequency. A 2.5 KHz crystal SSB filter is standard, and a 150 Hz CW filter is optional. The audio amplifier outputs 1 watt into an 8 ohm speaker.
Transmitter
- The transmitter operates in upper and lower sideband suppressed-carrier mode, and CW. Microphone input is high impedance. The speech amplifier includes a 3 KHz crystal filter. T/R switching is push to talk in SSB mode, and full break in CW.
  
  Final amplifier DC input is 200 watts, for an output power of approximately 100 watts.
Power Requirements
- The Triton IV requires 12 to 14 volts regulated DC at 500 milliamperes on receive, and 18 amperes maximum on transmit.

Ham Radio