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M241 echo detector is HTI company launched a portablesplit beam system. The system structure is more compact and portable, specifically for the fishery resourcesassessment and plankton.

The unique technical characteristics

1) high resolution data output:

The minimum pulse width of up to 0.1ms.

High distance resolution, can be divided into 1400 layers,the minimum resolution can reach 10cm.

Can make a summarization of data every 6 seconds.

2) synchronous real-time echo integration, target strength(conversion long fish), 3D object tracking (each tracked fishTS calculation), echo counting, the direction and the speed of fish.

3) the ratio of signal to noise signal, FM linear FM signal can provide up to 15 dB gain.

Technical specifications

 • power supply: 12 VDC (also can use 100, 120, 220 or 240 VAC power adapter).

 • deck handling unit size: 432 mm length x width of 254 mm x 109 mm high, does not contain PC and transducer

 • deck handling unit weight: 9 kg (12 VDC), excluding PCand transducer

 • optional operating frequency: frequency of 120 kHz,200 kHz or 420 kHz.

Working temperature: 0-50 degrees  • C (32-122 ° F).

 • power: 30 W, excluding PC and printer

 • transmitting power: 100 W

 • dynamic range: the total dynamic range of 130 dB @10kHz bandwidth

 • FM linear FM: improve the signal-to-noise ratio to 15 dB(PW = 1.25 MS)

 • transmitting power: 4 adjustable, each file 6dB (+2, +8,+14, +20, dBw).

 • receiver gain: the total gain of 5 adjustable, each file 6dB (-12, -6, 0, +6, +12 dB)