With the analyzer working again I have to admit that I’m of the opinion that it is
now performing better than before. The photograph on the right shows two signals
in the region of 7MHz as received on my Inverted-
Why the need for a Spectrum Analyzer anyway? Used correctly, a spectrum analyzer
can show the user the exact spectral output of a transmitter, amplifier or oscillator.
Even sophisticated power meters, like my HP 436A are broad-
‘Applicants must satisfy the Postmaster General as to their qualification and intention to conduct experiments of scientific value or public utility. If scientific investigation is intended they should be certified as competent investigators by a Government Department or some recognized scientific body. Authority to use wireless sending apparatus, even with an artificial aerial can be granted only if the nature of the proposed experiments and other circumstances warrant that course.’
Basically, one had to demonstrate the proposed experiments to a representative from the Post Office. … How times change!
Download the Service Manual
Operation and Service manual: PDF of 121 pages, 50MB
Schematics and ‘pull-
Items List: PDF of 79 pages, 26MB