Kenwood TS-990S Marine Radio User Manual


 
Triple DSP
Two attractive features of simultaneous
reception on different bands are that
you can easily check the condition on
other bands and still easily handle
split-operation.
An already legendary
Sub-receiver
supports dual reception.
Innovation spurred by digital technology has
revolutionized the Kenwood sound.
Sub Receiver
Even after using narrow bandwidth lters for long periods of time,
it is still easy to hear and less tiring to listen to.
In addition to introducing AGC control using dedicated DSP,
we have further rened the Kenwood sound and reception sound quality transmitted
by radio operators worldwide by innovating the analog AGC unit
and installing numerous interference and noise elimination functions.
Such innovations have given new life to Kenwood’s legendary sound.
The sub-receiver features performance that has
exceeded its class since going on sale, thus further
refining this popular receiver on the TS-590S. Be-
cause this is particularly the case on the front end,
where it employs circuit configuration that makes
down-conversion possible on the leading ve ama-
teur bands, it can be used in actual operation despite
being just a sub-receiver.
* The IF bandwidth for 160m/80m/40m/20m/15m bands is
(SSB/CW/FSK/PSK) for frequency levels 2.7 kHz or below.
Frequencies of 500 Hz and 2.7 kHz are standard
for sub-receiver roong lters. You can maintain a
Roofing filters, 500 Hz, 2.7 kHz
more or less at dynamic range even if interference
impinges on your reception frequency, thanks to
superior close-in dynamic range properties. You can
clearly catch signals under conditions made prob-
lematic by strong close-in interference signals.
Down-conversion occurs on the
160m/80m/40m/20m/15m bands*
The sub-receiver incorporates the TS-590S receiver
8
HF/50MHz TRANSCEIVER TS-990S
Sub receiver