[R-390] Sweep Generator Alignment

[Bob Camp]

Hi,

You inject the signal into the front end of the radio. Say you tune it to
600 KHz and also set the sweeper to 600 KHz. Then hook the seeper to the
antenna input of the radio. You hook a scope channel to the diode load
output on the back of the radio.The sweep output of the sweeper goes to
another scope channel or the trigger output of the sweeper goes to the
trigger input of the sweeper. A storage scope is a good idea since you will
be sweeping at a rate of 10 Hz or less.

An alteranate hookup would be to unplug the IF input and inject the signal
directly into the IF deck. The disadvantage of that is you will not be able
to properly set up the first coil on the deck and you need a cable with one
of the weird little connectors. You can get around both problems, but why
.....

The Wavetek's are nice little sweepers. I have several various models of
their stuff and use them from time to time. I generaly look at them as audio
gear rather than RF. I don't know why I do, that's just me. The oscillators
in them are R/C based rather than L/C or crystal based. That limits the
stability of the output. I would not recomend trying to set up the CW
crystal filter with one :)

    Take Care!

        Bob