In our continuing role as a technology leader, we're proud to introduce
you to another industry first: the TS-870S All-Mode HF Transceiver with
Next Generation Digital Signal Processing at the IF stage on transmit and
receive. The performance characteristics of this radio have set entirely
new standards, unmatched by any other product in its class. With the TS-870S
as the centrepiece of your station, you will experience the top level of
HF operating convenience.
INTELLIGENT DIGITAL ENHANCED COMMUNICATIONS SYSTEM
Features at a glance:
||160 m ~ 10 m amateur band operation
||100 kHz ~ 30 MHz general coverage receiver
||Next Generation IF-stage DSP (Digital Signal Processing)
||DSP filters & noise reduction
||57.6 Kbps computer control
||Built-in K1 LogiKey
||Built-in automatic antenna tuner
||Variable AGC circuit
||100 W output
||Dual antenna terminals
||Programmable function keys
TS-870S in detail:
Next Generation Digital Signal Processing
DSP technology uses a dedicated computer chip to convert analog waveforms
into digital information in "real-time", providing the opportunity to filter
and enhance the quality of the signal before it is reconverted into analog
form for the human ear or for radio frequency transmission.
The design approach we took with the TS-870S uses DSP at the IF stage, allowing
the greatest range of control and unprecedented receiver performance. This
Next Generation DSP is achieved by two 24-bit, 20 MIPS (Million Instructions
Per Second) DSP chips with a dynamic range of 144 dB, enabling you to pick
out weak signals that you've never even heard before, apply custom enhancements
to your transmitted voice and achieve remarkable noise reduction.
The key innovation setting the TS-870S apart from every other transceiver
on the market is the IF-stage, Next Generation Digital Signal Processor.
By capturing the signal at IF frequencies and applying complex algorithms
according to your configuration parameters, you can achieve filtering that
is simply impossible with an analog circuit. For instance, in SSB, CW and
FSK modes you can tune the DSP filter sharp enough to attain over 100 dB
out of pass band attenuation with virtually no signal loss. And there's
no need to purchase additional filters -- it's all done with DSP.
When operating in SSB mode, the Digital IF Filter enables both high and
low cut frequency variance so you can operate it as a slope tune, cutting
out noise with minimal effect on sound quality. The high cut variance is
adjustable in 12 steps between 1.4 and 6.0 kHz, and the low cut variance
is divided into 10 segments between 0 and 1000 Hz.
The Variable Bandwidth Tuning (VBT) function is supplemented by centre frequency
shift, allowing you to tune out adjacent signal interference. The VBT provides
6 tuning steps between 50 and 1000 Hz, and the centre frequency shift can
be adjusted in 13 steps between 400 and 1000 Hz.
In FM mode the VBT feature operates as a variable pass bandwidth in 6 steps
between 5 and 14 kHz.
The independent high cut and low cut frequency control gives you slope tune
capability in AM as well. In addition, the high cut frequency can reduce
interference by controlling the IF pass bandwidth -- useful for receiving
shortwave broadcasts. The high cut frequency is adjusted in 6 stages between
2.5 and 7 kHz, and the low cut frequency can be set to 0, 100, 200 or 500
Similar to FM mode, the VBT function provides noise reduction capabilities
in FSK with 4 stages available: 250, 500, 1000 and 1500 Hz.
Through DSP processing in the detector circuit, the TS-870S provides significantly
better S/N ratio than a comparable analog circuit. This results in lower
distortion and higher quality detection in all modes, far surpassing previous
The TS-870S offers you 2 methods of noise reduction to give you the edge
in receiving weak signals: the Line Enhancer Method (LEM) and the Speech
Processing/Auto Correlation (SPAC) function.
The characteristics of both the LEM and SPAC functions are fully configurable
through the TS-870S menu interface.
- LEM allows you to custom-shape a filter curve around a target
signal, essentially "carving" it out of the background noise --
a powerful tool in SSB operation.
- SPAC utilizes a special statistical/correlation algorithm to
pull weak signals out of the noise, ideal for tough CW conditions.
The Beat Cancel function automatically detects and eliminates multiple beats
interfering with a desired signal. It works in all modes except CW.
The IF Auto-Notch feature provides extremely sharp notch filtering of carrier
frequencies from broadcast and continuous beat sources. Since it is dealing
with the signal in a digital form at the IF stage, the interfering beat
can be "sliced" out in a far more precise manner than is possible
in conventional analog systems. The Auto-Notch will track with changes in
the beat signal as well, so you can "set it and forget it". This works
in all modes except CW and FSK.
Variable AGC Circuit
The AGC Circuit is modeled on a time-based continuously-variable design
for maximum convenience. The digital format delivers very fast release
surpassing even the best analog designs. You can select automatic or manual
mode and a custom release time for each mode.
You can apply equalization to your transmit audio in AM and SSB modes by
altering the bandpass filter's width and low cut frequency, giving you control
over voice tonal qualities. The Bandpass Filter has 5 steps between 1.8
and 3.0 kHz, and the low-cut frequency is adjustable in 6 steps from 0 to
500 Hz. The transmit filter has an attenuation factor of 100 dB.
The Speech Processor is divided into three audio frequency bands: low, mid
and high. All are fully adjustable through the menu interface.
You can further tailor your transmit audio by adding clarity (high boost),
strength (low boost) and removing background ambient noise other than voice
(comb filter). This allows you to optimize your signal for specific contacts.
The back panel has a host of connectors: antenna 1 & 2 (UHF-type),
FSK keying (RCA pin jack/phono socket), high-speed RS-232C PC control (D-SUB
9-pin), Digital modes (13-pin DIN), external antenna tuner (6-pin), external
linear amp control (7-pin DIN), dual CW keys, external speaker (miniplug),
station monitor connector (8.83 MHz; RCA pin jack/phono socket), and an
external receiver antenna connection (RCA pin jack/phono socket).
The TS-870S has a full array of additional features that make HF operating
a truly pleasurable experience. All of the drudgery is eliminated, leaving
you free to pilot your way through DX contests, DXpeditions, or whatever
your HF passion is. The TS-870S arms you with leading edge digital technology
plus all of the convenience these features give you.
Built-in Electronic Keyer
You'll be flying high with morse code generated by the full-featured built-in
Electronic Keyer. It's based on the popular K1 LogiKey and offers full or
semi break-in, rise/fall times adjustable through DSP, plus a side tone
monitor. The TS-870S also sports a second keyer connection.
CW Pitch Control
The CW Pitch Control is adjustable in 50 Hz steps between 400 Hz and 1000
Hz. It can also be linked to the side tone.
CW Reverse Mode
In reverse mode the pitch of interference competing with the CW signal is
reversed, so the operator can approach the target from either side.
The TS-870S puts out 100 watts in SSB, CW, FSK, and FM modes. Output on
AM is 25 watts.
Advanced Intercept Point (AIP)
AIP extends the receiver dynamic range and reduces adjacent signal interference.
You can activate and store AIP on each band.
Multiple Scanning Modes
All-Scan Mode covers all memory channels that have stored information; Group
Scan Mode scans all 100 memory channels in groups of 10; Lock-Out Memory
Scan allows you to sample only certain channels; and Programme Scan is used
to scan a frequency spread between two VFO settings. You can control the
speed of any scan mode, and choose time-operated or carrier-operated busy-stop-resume.
All of the power of the DSP and other functions can be accessed through
the menu-driven display interface on the front of the TS-870S. You may also
activate the Quick Menu feature to access only your most commonly-used functions.
Auto Antenna Tuner
The sophisticated Auto Antenna Tuner works in all bands from 1.8 to 28 MHz
with rapid tuning lock when using presets. It also operates when the radio
is in receive mode, maximizing the strength of received signals.
Dual Antenna Terminals
You may connect two separate antennas at the same time and switch between
them from the front panel controls. Antenna selection is stored in band
memory for automatic recall when you change bands.
You can also hook up an external receiver to a dedicated connector to access
other frequencies on the same antenna being used by the TS-870S.
Digital Recording Unit Option
The optional DRU-3 is a high-quality digital recording device which lets
you store up to 4 messages for a total of 60 seconds.
Transmit Frequency Set allows you to perform a one-touch check of your transmit
frequency while operating splits. You can lock the receive frequency and
adjust the transmit frequency as well.
This function gives you an instant display of the frequency difference between
transmit and receive when you are operating splits.
Use the one-touch Quick Memory for storing temporary frequencies "on
the fly" (5 channels). This is ideal for use during contests or changing
100 Main Memory Channels
You have more than enough room to store frequency, mode and other settings
of your favorite operating hangouts. You can also set one channel for use
as a programmable VFO or programmable scan.
The microphone AGC circuit ensures that your transmitted signal is not over-modulated,
even if the voice input level varies (SSB, FM, AM).
You can select 4 stages of attenuation for each band: off, -6 dB, -12 dB,
and -18 dB.
The Noise Blanker is a variable-level type that nulls pulse-type interference.
Programmable Function Keys
You can programme your most often used functions in any of 4 user-programmable
keys for quick access.
High-Speed Computer Control Interface
The TS-870S is fully computer-controllable through a built-in, high-speed
57.6 Kbps RS-232C interface on the back panel.
||General coverage receiver (100 Hz to 30 MHz)
||RIT/XIT (Variable range: ±9.99 kHz)
||Voice Synthesizer compatible (with optional VS-2)
||Split transfer function
||Frequency lock/transmit inhibit
||Variable beep (3 levels)
Dimensions (W x H x D)
||330 x 120 x 334 mm (12.99 x 4.72 x 13.15 in.)
Please note that not all features and options may be available for the model sold in your region.
Operation of DTSS, Pager, DTMF, and CTCSS is subject to local regulations.