In this video I will be covering an SSB transmit mixer. This is an extension of the ESP32 Radio series Schematics here: https://github.com/thaaraak/ESP32-Radio-kicad Code here: https://github.com/thaaraak/ESP32-Transmitter DSP Processing video for ESP32 https://www.youtube.com/watch?v=oKbi1XitBvI&t=210s Phaser Radio series https://www.youtube.com/watch?v=e54clmYSznc Two Tone test by W2AEW https://www.youtube.com/watch?v=3DxBg6h4Fc8&t=190s Another two tone article https://www.vk6ysf.com/ssb_2tone_test.htm Discussion of IMD (that 700+1900 artifact) https://www.electronicdesign.com/technologies/communications/article/21798494/understanding-intermodulation-distortion-measurements An alternative phasing mixer https://kd4e.com/kd4e-images/projects/Phasing_SSB_Generator_.pdf 0:00 Intro 0:59 Component walkthrough 3:36 Schematic walkthrough 5:45 Hardware walkthrough 6:36 Tayloe Mixer board closeup 7:59 Single tone SSB on oscilloscope (USB) 9:35 Lower sideband 10:07 Lower sideband on Spectrum Analyzer 11:35 Upper sideband on Spectrum Analyzer 12:30 Two tone test setup 13:44 Two tone on Oscilloscope 15:05 Two tone on Spectrum Analyzer 17:20 Wrap up and next steps ... https://www.youtube.com/watch?v=XySzNe7rXbk

This amplifier is from Experimental Methods in RF design Some changes/substitutions: - FT 114-61 instead of FT 61-114 - BN-43-202 instead of BN-43-201 - IRF540 instead of IRF530 - 7xFB 43-101 instead of 3x FB43-801 - BS-170 for Bias on/off All toroids and 5Watter available from kitsandparts.com. Silver Mica caps from various places ... https://www.youtube.com/watch?v=dAp3kVLqee8

In this video series I will be building up this kit https://www.amazon.com/gp/product/B07KT71W1C/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1 There are a few places out there experimenting with this kit https://www.rudiswiki.de/wiki9/AfuSW-PA-45W Here's that forum I picked up the schematic from https://www.saure.org/phpBB_04/viewtopic.php?t=187 And here's my google drive with a readable schematic https://drive.google.com/file/d/1rXdZkfNStUP0Zz3jFpwE6WsESj3K73Rh/view?usp=sharing Here's my LTSpice model for this kit https://github.com/thaaraak/ltspice/blob/master/RF_AMP_2078_V306.asc I made a mistake at around 2:35 - I was pointing to the SMD diodes not the transistor 0:00 Intro 2:16 Walkthrough of the kit/components 3:19 Schematic walkthrough - Stage 1 4:15 Schematic walkthrough - Stage 2 5:02 Schematic walkthrough - Final stage 7:20 Build order 10:40 A final note on heatsinks ... https://www.youtube.com/watch?v=d4Vtk0D06S8

I had hoped to get all the receiver circuitry done but this video was running a bit long so I stopped after installing the relays and testing the band pass filters Here's the magnis forum (thanks again to N8VET) https://groups.io/g/TheVeteranSDR/topics 0:00 Intro and plan of attack 2:17 USB update and correction 3:10 Controlling the LO frequency with HDSDR 4:20 Installing Q1 and Q2 for Transmit and Band change control 5:46 Relays K1, K2 and K4 installed 6:05 Relays tested 7:16 Checking continuity for K2 and K4 8:27 Checking the bandpass relay K1 8:57 Building the band pass filters for 20 and 40m 10:02 Bandpass filters built 11:59 Bandpass filter installed and testing setup 12:32 Observing the output of the 20 and 40m bandpass filters on the spectrum analyzer ... https://www.youtube.com/watch?v=7QMK3L9dE1U