Rerurn to Romy the Cat's Site

Dear Romy,

My tests showed 2 separate types of noise/interference being caused when TU-X1 & DA-924 were switched ON while the TU-X1 was set to OUTPUT FM: -

First noise/interference, the Sansui TU-X1 was passing an AM broadcast on VARIABLE OUTPUT FM and on FIXED FM OUTPUT at a number frequencies 87.0 - 87.8 MHz, 92.2 MHz, 95.9 MHz, etc.  I did some more investigations and found that the wire from an adapter (AC to 12V DC) to my AM antenna tuner was a source of this interference.  Moving the wire affected the interference.  So the cause of this interference was a combination of: -

~ DA-924 being switched ON;
~ TU-X1 tuned to the particular frequency or frequency range; and
~ AM antenna tuner adapter's wire being in a particular position too close to another cable (I will investigate further).

So the first problem could be solved by either turning the DA-924 OFF or shifting the wire.  I shifted the wire.  Note that I could affect the noise/interference by placing my hand on the DA-924 near the IEC connector when trying to switch it OFF.

Second noise/interference, the Sansuii TU-X1 was picking up noise of the DA-924 attempting to locate a digital source, i.e., AES1 -> AES2 -> IEC -> MUTE -> AES1 ... at 95.7 MHz through 96.0 MHz.  Shifting the wire makes no difference to the noise/interference.  Note that I could affect the noise/interference by placing my hand on the DA-924 near the IEC connector of the DA-924 when trying to switch it OFF.

I detected NO OTHER unexpected noise/interference in my tests.

Rerurn to Romy the Cat's Site