On 28/08/2024 02:45, Ron VE8RT via groups.io wrote:
the image rejection figures are unacceptably
poor on every band on the QDX
Ron,
Causes for no image rejection starts at T2.
The signal is split into two.
Bad soldering or windings in wrong holes can give wrong phase or just one output..
T2 is most likely but one of the signals may be missing in the path to IC10.
73 Alan G4ZFQ