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PROBLEM, I am just mentioning it because if you saw the sinewave at IC7A pin 1 looking 3x as big as the one at IC6A
pin 1, then this is normal IF you have the swapped resistors. No panic.
This screenshot below shows the signals at IC7a pin 1, and IC6a pin 1. These are the outputs of the I and Q channels,
after the 90-degree phase shift has been applied. Remember that the kit is in menu item "8.7 Peak BPF" where the signal
generator is injecting a tone 700Hz higher than the receiver oscillator, resulting in 700Hz beat note. This is on the
WANTED sideband, so we expect that after the 90-degree phase shift, these two signals will be IN-phase. In the
screenshot below, you can see that the signals have similar amplitude but are displaced - this is a phase error.
Now you can easily adjust the phase shift adjustments R17 and R24, to bring the two channels into phase. As you turn
R17 and R24 you will see the two sinewaves line up on top of each other. This is only a rough adjustment, the
oscilloscope won't show tiny phase errors closely enough to get really good unwanted sideband cancellation. This should
be done only using the menu items 8.8, 8.9, 8.10. I only mention it here because it is useful to check these things during
fault-finding.
