A new TechNote for Kenwood's TS-990S transceiver on "SSB Audio Handling
and TX Keying" is now available on the "TS-990S Resources Page":
Click on the red "TECHNOTES" button, then download TechNote # 1.
The TechNote seeks to explain the many built-in features for setting up
the TS-990S for SSB operation. This includes:
** Setting up the two TS-990S "Configurations" (Config A and Config B).
** Selecting audio inputs via the MIC, ACC2, USB Audio and Optical
ports -- many combinations of audio input and TX keying method are
** Setting up the four DATA modes.
** Setting up the RX filters -- the radio contains no fewer than 144 RX
filters (roofing, IF and AF), each one individually configurable!
** Setting up the TX Low/High Cut filters and the TX/RX audio equalizers
-- an Appendix contains details of the default equalizer settings.
** Configuring the internally generated audio sources: Beep Tone, Voice
Message Memory, Sidetone, Monitor and Voice Guidance System.
** Configuring the various ways of TX keying: VOX, DATA VOX, PTT, CAT
command, Programmable Function Key.
** Setting up the SSB Marker Offset.
TS-590S owners will find that much of the organization of the TS-990S is
already familiar, as the two radios follow broadly the same
architecture. The difference is one of scale: the TS-990S has many more
configuration options, there are two receivers rather than one, and the
menu system is much easier to use than on the TS-590S.
The TechNote is a lengthy document containing a lot of detail. I
couldn't have written it without the help of a willing band of peer
reviewers who provided much critical feedback on the draft versions. In
last name order, they were:
" Mike Aust (WB6DJI)
" Andy Burnett (G0HIX)
" Don Dennis (VK3HDX)
" Richard Drinkwater (G3ZIY)
" Mike Gusky (K5UX)
" John Piepers (PD4KBZ)
" Barry Simpson (VK2BJ)
" Sam Spiteri (KD8QES)
Gentlemen all !
The TS-990S Resources Page:
The TS-590S Resources Page: