Keywords: SSB, Single Sideband, upper sideband, lower sideband, continuous wave, usb, lsb, cw, direct conversion receiver, phasing method, image reject mixer, transceiver, receiver, transmitter, exciter, power amplifier, temperature stabilized crystal oscillator, cmos oscillator, positive temperature coefficient thermistor, ptc, bandpass filter, low pass filter, halfwave filter, highpass filter, allpass filter, active filter, amplitude compression, phase shift oscillator, sideband suppression, johnson counter, quadrature counter, quadrature phase shift, tayloe detector, quadrature sampling detector, qsd, automatic gain control, agc, variable gain amplifier, vga, minimum discernable signal, two tone third order dynamic range, polarity protection, p channel mosfet, n channel mosfet
By
Sometime
back, I built a phasing-type SSB transceiver
which covered the 160 – 30 meter ham bands.
While it worked pretty well, it left a few things to be desired.
The receiver dynamic range was not a wide as desired and the circuit
boards were a bit larger than I would have liked.
Armed
with a bit more knowledge and experience, I will attempt to set some things
right that alluded me on the first go-around.
The
project presented here is a homebrew SSB transceiver, which operates on a
single, crystal-controlled channel of the 60 meter band.
The project will be presented one board at a time until a working
transceiver is attained. Where
possible, some insight into the design process will be given, to assist others
who may decide to embark on their own radio projects.
Design aids, such as links to free, web-based design resources, circuit
simulations, and detailed Bills of Materials (BOM) will be given.
The
end-goal of this project is not to stop with just a single channel transceiver.
It is hoped that the modules presented here will lay the groundwork for
an all-band transceiver. The same
modules could also form the basis for a tunable IF VHF or UHF transceiver.
The
information presented is the result of original design work by myself, including
circuit design and PCB layout, except where noted.
In cases where I have openly plagiarized the works of others, (as in the
case of the RF power amplifier) due credit will be given.
Please
be patient with the progress (and quality) of the website.
I prefer to spend more time developing circuits than writing websites!
Enough
of the introductions. Let’s get
into the circuits! Click on the
links below to see the modules that have been completed, so far. Please be sure to check back to see new additions.
| Home | Site Navigation | First Generation SSB Transceiver |