T41-EP SDT

Photo credit: Albert F. Peter (AC8GY) & Dr. Jack Purdum (W8TEE)

Production Update

I’ve decided not to produce another batch of the T41 v12 design right way so complete kits are currently out of stock.

Don’t worry! I will be producing more T41 kits and I even have some new products based on the T41 in the works. New production runs and new products will be announced soon. Be patient, you’ll like what’s coming. Sign up for my email list (below) so you can get updates before anyone else and, of course, first dibs on pre-orders.

  • Overview

    The T41-EP SDT is a software defined transceiver designed by Albert F Peter (AC8GY) and Dr. Jack Purdum (W8TEE) with later contributions by John Melton (G0ORX), Bill Schmidt (K9HZ), Oliver King (KI3P), and others. It is fully open-source hardware and software with an amazing community behind it.

  • Specifications

    • SSB & CW operation.
    • 11 bands* (160M-6M).
    • Bandpass filter (BPF) for each band.
    • 192kHz waterfall display.
    • CW envelope shaping.
    • RX & TX gain control.
    • Temperature compensated crystal oscillator (TXCO).
    • Built-in four antenna switching.
    • Built-in digital SWR meter.
    • 20W Amplifier (upgradable to 100W).
    • Dual-Receive capable (with optional components).
    • Fully open source hardware and software.
    • Modular and infinitely upgradable.

Get the Book!

Al and Jack’s book details the design, theory, operation, and assembly
of this incredible transceiver. It’s a delightfully detailed read for
SDR beginners and experts alike whether you plan to build a T41 or not.

Buy on Amazon

Building Your T41-EP SDT

The SoftwareControlledHamRadio Groups.io has a wealth of information on assembling, testing, troubleshooting, and operating this amazing transceiver. Start with the Wiki.

All my kits come with instructions for assembly. Feel free to follow along even if you got your board and parts elsewhere, although some instructions are slightly different.