Measuring Equipment and The Measuring result
The Tektronix 475 Oscilloscope shows the 100 KHz signal for the product detector
On top the homemade Spectrum Analyzer OZ6FRS (Klubproject) using computer as monitor.
On top of SA you see my homemade Vector Network Analyzer - N2PK.
AT the right HP 8601A Generator/Sweeper 0 - 110 MHz.
VFO, LO-mixer and motherboard with Filter and Mixers for 50->9Mhz and 9->0.1 MHz.
In the white frame you se the 50 MHz Band pass-filter, and at the right, the DIPLEXER 9 MHz.