Various Photos of the Individual Assemblies
Below is the assmbled circuit board which is mounted in a shielded box and plot of the band pass filter built to improve the selectivity of the 52.625 MHz receiver. The filter's insertion loss is 5dB and the attenuation of the 99.7MHz frequency is approximately 84db below. A 6dB switched attenuator has also been included to assist with site noise measurements.
August 2024
Filter and triplexer mounted on a rack panel (below)
The six metre receiver shares an antenna with 146 MHz and 440 MHz equipment
The six metre receiver shares an antenna with 146 MHz and 440 MHz equipment
