Specifications

Receiver:

• DC receiver (not a superhet)
• Current Drain: Approximately 45 ma @ 12v. The addition of the counter adds ~ 22 ma of addition current drain.
• Supply voltage range: 10.5 to 14v
• Receiver bandwidth: 700 Hz. Five pole R/C active filter provides the selectivity, nominally 3 dB down at 1 KHz, 40 dB down at ~2 KHz, 100 dB down at ~ 8 KHz
• 0.16 uV receiver sensitivity
• 5v pk-pk receiver detector design enables stout large signal performance

• Power Output ~ 5w at 12v , 760 mA
• All output harmonics less than -50 dBc
• Transmitter is set up for a straight key input

• Both RIT and XIT are provided with ~ ± 4000 Hz tuning range.
• 60 KHz tuning ranges for 15m, ~ 21.000 - 21.060 and 21.075 - 21.135 MHz, or are available using a front panel range switch.
• 30 KHz tuning ranges for 160m, ~ 1800 - 1835 and 1830 - 1865 MHz, or are available using a front panel range switch.
• Spot switch to allow setting precise TX spotting. Spotting mode is entered via a push button. A 800 Hz blip is sent once a second to remind the user that the rig is in the "spot" mode.
• Transmit protection - When the transmitter is left key down for more than three seconds, the transmitter going into a "dotting" mode. The transmitter is capable of running indefinitely in dotting mode.
• The audio output has been designed to drive headphones and have been provided with audio compression to protect the user from sudden, large signals when using headphones.
• A regulated 5v output has been provided for external keyer kits.

 Ft Tuthill 15m Assembly/Operation Manual - Part 1 (v6)

 Ft Tuthill 15m Assembly/Operation Manual - Part 2 (v5)

 Revised Assembly instructions for the Bail

 Ft Tuthill 15m Schematic

 Ft Tuthill 160 Assembly/Operation Manual - Part 1

 Ft Tuthill 160 Assembly/Operation Manual - Part 2

 Ft Tuthill 160 Schematic

 Ft Tuthill 160 Parts Overlays

 Ft Tuthill Decal Instruction Manual

 Ft Tuthill Chassis Preparation Manual