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Phasing_SSB_Transmitter
https://www.n6qwradiogenius.us/Phasing_SSB.html
Below is a typical 1950's style Phasing Transmitter with the 90 Degree Audio Phase Shift Network typically being deisgnated as the 2Q4. The theory of phasing generation of SSB signals involves mathematical relationships that take advantage of phase differences in signals to cancel the carrier, diminish one sideband and to embellish the other.
Audio Phase Shift Network Design Project - Central Electronics
http://www.ce-multiphase.com/audio-shift.html
The key to good opposite sideband suppression with single sideband transmitters using the phasing method rests on the audio phase shifter. Simple audio phase shifters as designed by Dome and Norgaard were able to achieve 40db opposite sideband suppression over the range of 275 to 2750Hz. Beyond this audio base band, sideband suppression rapidly deteriorates and …
vk3ye dot com - Phasing SSB experiments
https://vk3ye.com/projects/projssbphasing.htm
Simple phasing SSB was popular around 1960 but interest in it declined for a few decades. Some were quite simple. Main stages included a crystal oscillator or VFO, RF phase splitter network, two balanced modulators, audio phase splitter network and linear power amplifier chain.
SSB Transmission - Filter Method, Phase Shift ... - D&E …
https://www.daenotes.com/electronics/communication-system/ssb-transmission
The phaseing method of SSB generation uses a phase shift technique that causes one of the side bands to be conceled out. A block diagram of a phasing type SSB generator is shown in fig. SSB Single Sideband Transmission Phase Shift Method It uses two balanced modulators instead of one. The balanced modulators effectively eliminate the carrier.
How phasing SSB Exciters Work (Was: RF and AF speech ...
https://groups.google.com/g/rec.radio.amateur.homebrew/c/nCTPZmm460k
The audio phase shift network is the interesting (read difficult) part of the system. It must maintain a 90 degree phase difference and excellent amplitude matching between the …
Audio phase-shift network - Red Wave Radio
http://www.redwaveradio.com/5_6a4babd21e577105_1.htm
Hi, Anyone have the basic circuitry for an audio phase-shift network for use in a phasing type SSB e***r. What I am interested in is the old B&W Model 350 2Q4. I have the circuits for the modern phase-shift networks, but I have never seen the layout for the older (1950's) networks. The 2Q4 has been
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