
|
|
Receiving in stereo on the 1000MP
I have a hearing problem and find that some SSB signals are nearly
impossible to understand, due to to conditions, interference, or the individual
station. I have tried a number of solutions using various speakers and many
settings on the MP. I even tried a small inexpensive equalizer - but, it was
severely effected by transmitted signals (read - RF got into it). But, the
simplest combo sat in a corner waiting to be thrown out with the trash. It was
an old set of Sound Blaster speakers for use with a long-gone computer.
To make the story very short: These particular speakers have internal amplifiers
and are powered with a wall-wart. They use a mini tip-ring-sleeve plug that
plugs into the "A" Phones jack on the MP. Using menu 4-8, set the unit to
StErEo-2. This will allow you to listen to both receivers at the same time using
both AF GAIN controls (the inner for the main receiver and the outer for the
sub-receiver).
One example of use: Tune to whatever frequency you plan to receive on - using
the MAIN VFO-A. Press the A>B making the same exact frequency appear on the SUB
VFO-B. Push the DUAL button. Now adjust the volume controls (inner and outer as
indicated) as needed for comfortable listening. You should notice a slight
diversity effect.
Comments: I keep the speakers on my desk about three (3) feet apart. The effect
of stereo is fantastic for clearing up muddy SSB signals. Muddy being defined as
too bass, to filled with QRM, lots of QRN. I have not tried it on CW yet.
Drawback: None of the wonderful DSP filters work on the sub-receiver (cheap
Yaesu!!). Of course, sometimes, this will actually enhance your receiving (good
Yaesu!!). I have thought about placing an outboard DSP unit on the sub-receiver
audio line - something to be tried at a later time.
There is no doubt that the 1000MP is the best piece of ham equipment yet! I have
reviewed many rigs in various magazines over the years - so my statement is not
lightly made. I can make no stronger comment. W2BLC
|