AT-140
AT-140 Downloads
| Name | Type | Size |
|---|---|---|
| Instruction Manual
AT-140 Instruction Manual
|
214.32 KB |
AT-140 Features
Matches all bands
The AT-140 matches any frequency on every HF marine band. For example, the tuner matches a 7 m; 23 ft
long-wire antenna across 1.6–30 MHz.
Full automatic tuning
Just push the [TUNE] switch on the transceiver, and
the AT-140 adjusts immediately to the minimum SWR
of any frequency on any HF marine band.
HF operation on any size ship
The AT-140 allows you HF operation where antenna
element length is restricted due to space.
Weather resistant
The AT-140 is housed in a durable, completely weather
resistant ASA case with a rubber gasket. The antenna
tuner can be conveniently installed both on the deck or
in the cabin near the antenna element.
Simple installation
Installation is simple. Just connect the control and antenna cables. You never need to open the cover.
45 memories for shorter tuning time
To decrease the tune-up time, the AT-140 automatically
stores the matching conditions for up to 45 frequencies.
Re-tuning for a memorized frequency takes approx. 1
sec.
Super capacitor for memory backup
Even if the AT-140 is not used for approx. 1 week, the
built-in super capacitor backs up contents of the 45
memories.
Low power tune up
The AT-140 emits low output power during tuning. This
feature reduces the possibility of causing interference
to other stations.
Tuner through function
The tuner through function is built into the AT-140. This
function helps improve receiver gain, depending on the
antenna element length used, and operating frequency.
General
| Frequency range | Tx | 156.025–157.425 MHz |
|---|---|---|
| Rx | 156.050–163.275 MHz | |
| Rx (CH70) | 156.525 MHz | |
| RX (AIS) | 162.025 MHz | |
| Usable channel groups | INT, USA, CAN, WX channels | |
| Type of emission | 16K0G3E (FM), 16K0G2B (DSC), 16K0GXW (GMSK) | |
| Current drain (at 7.2 V DC) |
TX (6 W/1 W output) | 1500 mA/700 mA (approx.) |
| RX (Inter SP/Exter SP Max. audio) | 700 mA/350 mA (approx.) | |
| Operating temperature range | –20°C to +60°C; –4˚F to +140˚F | |
| Antenna impedance | 50 Ω | |
| Dimensions (W×H×D) (Projections not included) |
60.9 × 145.8 × 43.8 mm; 2.4 × 5.7 × 1.7 in |
|
| Weight (approximately) | 357 g ; 12.6 oz (With BP-306, antenna, MB-133) |
|
Transmitter
| Output power (Hi/Low) | 6 W/1 W | |
|---|---|---|
| Max. frequency deviation | ±5 kHz | |
| Frequency stability | ±10 ppm | |
| Spurious emissions | –68 dBc typical | |
Receiver
| Sensitivity (at 12 dB SINAD) DSC receiver (at 1% BER) AIS receiver (at 20% PER) |
0.25 μV typical –3 dBμ emf typical –107 dBm |
|
|---|---|---|
| Squelch sensitivity (Threshold) | 0.25 μV typical | |
| Adjacent channel selectivity DSC receiver (at 1% BER) AIS receiver (at 20% PER) |
70 dB typical 73 dBμ emf 50 dB typical |
|
| Spurious response DSC receiver (at 1% BER) AIS receiver (at 20% PER) |
70 dB typical 73 dBμ emf 50 dB typical |
|
| Intermodulation DSC receiver (at 1% BER) AIS receiver (at 20% PER) |
70 dB typical 68 dBμ emf 50 dB typical |
|
| Hum and noise | 40 dB | |
| Audio output power (at 10% distortion) |
Internal SP | 1500 mW typical (8 Ω load) |
| External SP | 350 mW typical (8 Ω load) | |
Measurements made in accordance with TIA/EIA-603. All stated specifications are subject to change without notice or obligation.
Applicable U.S. Military Specifications & IP Rating
| Standard | MIL-810 G | |
|---|---|---|
| Method | Procedure | |
| Low Pressure | 500.5 | I, II |
| High Temperature | 501.5 | I, II |
| Low Temperature | 502.5 | I, II |
| Temperature Shock | 503.5 | I-C |
| Solar Radiation | 505.5 | I |
| Rain Blowing/Drip | 506.5 | I, III |
| Humidity | 507.5 | II |
| Salt Fog | 509.5 | – |
| Dust Blowing | 510.5 | I |
| Immersion | 512.5 | I |
| Vibration | 514.6 | I |
| Shock | 516.6 | I, IV |
Also meets equivalent MIL-STD-810-C, -D, -E and -F.
| Ingress Protection Standards | |
|---|---|
| Water | IPX7 (Waterproof protection) |
All stated specifications are subject to change without notice or obligation.
Supplied Accessories
- BP-306 battery pack
- BC-251 battery charger
- AC adapter*
- CP-26 cigarette lighter cable
- MB-133 belt clip
- Antenna
- Hand strap
* May differ depending on version




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