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Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486

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MPN:
544
Condition:
Used
Shipping:
$35.00 (Fixed Shipping Cost)
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
  • Ten-Tec 544 Triton IV (Digital) Transceiver in Excellent Cosmetic Condition Needs Minor Work S/N 1486
$149.99
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Description

This Ten-Tec 544 Triton IV (Digital) Transceiver, is in Excellent Cosmetic Condition. S/N 1486

It will need some work.  I Tested it and found it transmitted and received very well but the PTO was not moving the frequency on the digital display.

 I did hook up a remote 242 VFO for tuning, and the rig worked great with excellent receive and transmit audio and power.

 There is a link to a web site below that has the PTO rebuild information and other service information.

Why "Triton" Name Was Dropped

From the Ten-Tec Reflector November 1, 1999

Ten-Tec was threatened with legal action from a major communications company over the use of the name "Triton" for radio equipment. Rather than have David fight Goliath, they changed the name of the radio from the model 544 Triton IV to the "Model 544" - the "Model 544" name plate on the front was used for approximately the last year of production of the model.

 So this is a very late model Triton IV.

 This radio is super clean and well worth putting some work into it as the condition is about as good as it gets. (my camera picked up some light reflection on the top cover. The finish of the vinyl is actually in excellent condition)

 This Radio as well as all the other many Ten-Tec items I have listed, are part of an estate I am selling for a friend who has been collecting only the finest Ten-Tec gear. He is selling his gear due to a planned move.

 Due to the age of this transceiver, I am selling this radio as is, as described, for parts or repair, with no returns.

A good copy of the manual and The power cord is included.  It will require a hand microphone with a 1/4 inch stereo plug connector.  Any Dynamic hand microphone appears to work well.

 The manual has Drawings and service photographs of each board.

 There is a great web page with a lot of service information you can see at the link below:

https://web.archive.org/web/20101003061948/http://www.earlandrews.com/ARGONAUT1.html

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: Six digit, 0.43" high LED numerals. Least significant digit indicating 100 Hz green, all others red. Accuracy - 100 Hz.
  • Calibrator: No 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, 1 A receive, 18 A maximum transmit.
  • Modular Contruction: 10 plug-in assemblies and 9 fixed circuit boards.
  • Semiconductors: 65 transistors, 38 diodes, 14 IC's, 1 LSI, 6 LED displays
  • Power switch remotely controls power supply.
  • Snap-up front feet.
  • Contruction: Rigid asuminum 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

 

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