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1. Wide dynamic range
New advances in circuit design have made a 102 dB
dynamic range (500 Hz IF bandwidth) possible.
9. Switchable AGC time constant
A switch is provided to select either FAST or SLOW
AGC action.
10. All mode squelch
11. Built-in RF power/SWR meter
2. General coverage reception from 100 kHz
to 30 MHz
In addition to transmission and reception on all amateur
bands from 1.8 to 28 MHz, the TS-440S provides a
continuous tuning general coverage receiver with a
range of 100 kHz to 30 MHz.
3. Automatic antenna tuner
The optional, built-in automatic antenna tuner will oper-
ate from 3.5 to 28 MHz.
4. All-mode operation
USB, LSB, CW, AM, FM, and AFSK modes are
provided.
5. 100% continuous duty transmit
Transmission at a 100% duty cycle is possible for rela-
tively long durations (one hour or less) in any mode,
including FM and AFSK.
6. CW full break-in
Full break-in operation is possible in the CW mode.
Rapid transmit/receive switching also makes the radio
suitable for data communications in the SSB mode,
such as AMTOR.
7. Build-in XIT
XIT (Transmitter incremental tuning) allows fine tun
ing of the transmitter frequency.
12. Versatile frequency control
.Accurate frequency selection is possible due to the
use of a single reference oscillator circuit.
.Continuous tuning of all frequencies thru the use of
digital VFO technology. The basic 10Hz step tun-
ing rate is modified, according to the selected mode,
for optimum tuning speed and accuracy. An auto-
matic fast scan function is also provided.
.Dual, digital VFO's (A/B) enable crossband, cross
mode operation.
.100-channel memory (including 10 odd-split chan-
nels) stores the frequency, band, and mode.
.Memory scan and two programmable scan ranges.
.Direct entry of the desired frequency using the front
panel numeric keypad is also possible.
.A memory scroll function allows review of the
memory channel contents.
.Selection of the desired memory channel fs possi-
ble using either the TUNING dial or microphone
UP/DOWN pushbuttons.
.The T -F SET function is useful for split frequency
operation.
.An optional tone unit TU-8 may be used in conjunc-
tion with the odd-split memory channels to allow 10
meter repeater operations with CTCSS access.
.Optional computer interface.
.Built-in long-life memory back-up battery.
.2-color fluorescent display tube indicates frequen-
cy and other operational data.
8. Switchable IF bandwidth
The IF bandswitch allows you to tailor the receiver
bandwidth to the operating conditions. Several selec-
tions are provided; AUTO, W (Wide), M 1 (Medium 1),
M2 (Medium 2) and N (Narrow). When the AUTO po-
sition has been selected the radio will select the opti-
mum bandwidth for the selected mode of operation.
13. Front panel control of the TUNING dial
torque is provided.
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