Ten-tec Argonaut 505 Manual: A User-Friendly and Easy-to-Follow Instruction Booklet

Two adjustments that can effect SSB performance are: 1) Carrier Balance and 2) TX Mixer Balance. The Carrier Balance control is on the SSB Generator Board and should be adjusted for minimum output when the transmitter is in SSB mode and the Drive control is turned all the way down. The best output indicator is an oscilloscope connected to the transmitter output, but a voltmeter with an RF probe can also be used. The adjustment procedure is described in the Argonaut manual.

The manual is rather vague on how to adjust the TX Mixer Balance control located on the TX-RX Mixer Board. I have found that the following procedure works well with my 509; it should also work for 505's and 515's:

Ten-tec Argonaut 505 Manual

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After tuning around a bit and working with the controls on the Radio, I found a POTA operator to zero beat. I needed something to reference in order to adjust my knob indicator so I would know what frequency the radio is on. I actually received the manual for the radio and each of the components. Reading through a few key points the night before really helped out when I was ready to start tuning in and transmitting.

The receiver will function with much reduced performancewithout modification by turning the receive preselectorcompletely counterclockwise, as mentioned in the 509 manual forWWV reception. To improve 10 MHz performance the receiver frontend needs additional capacitance.

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