1	The Development & Construction of a SSB Transceiver for 80/40m
2	Introduction This project took about two years to produce the finished transceiver shown in the following slides The circuit was evolved,the prototypes & the PCB’s produced, then persuaded to work. All the boards were put into a box with the hope that all would STILL work! They did not!!! I have attempted to follow a logical progression in the arrangement of the following slides. I hope it will be of interest.
3	Block Diagram
4	Overview Front Panel Layout
5	Top view
6	Bottom view
7	CIO PCB (VFO not shown )
8	9MHz SSB Generator.
9	Tx PCB Transmit mixer, pre amp board. (80/40m BPFilters & Driver BFY 51 )
10	Boards Common to the RX (IF & Rx Mixer PCB’s)
11	Rx Boards ( AF amp-Kit- Detector/AGC PCB’s –only AGC board visible. )
12	Rx Mixer Mod To improve reception, particularly on 40m at night ,I currently have a prototype Rx mixer using the AD 831 ic .It is packaged as a SMD. It is proving difficult to get the required conversion gain
13	Rx Front End Four poles of filtering including a RF amp with preset gain were used for each band.Both filters feed a further RF amp,1612,to which agc is applied.One PCB is visible in the slide.
14	Pre-mixer PCB for 40m SSB is generated on 9MHz. This permits direct conversion to 80m.On the 40m band the VFO operating between 5.0 to 5.5MHz must be mixed to 16.0 to 16.5MHz to produce 40m output.This slide shows the 11.0Mhz xtal osc (LHS),mixer(NE602)& the O.P. BPfilter.