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Ultrasonic Receiver KMR-361

Ultrasonic Receiver KMR-361


Ultrasound Detector
Heterodyne detector, small and lightweight with a large digital display backlits by LEDs that allow you to monitor the tuned frequency. It's able to capture even the lowest noise thanks to the heterodyne advanced technology able to increase the signal of interest.

Specifications KMR-361-base

Type: Heterodyne
Microphone Electret
Frequency range: 10 - 120 kHz (min.)
Display accuracy: +/- 0.15 kHz
Bandwidth: 8 kHz (+/- 4 kHz), -6 dB
Battery: 1 x IEC 6LF22 (9V)
Quiescent current: 17 mA typ. including LCD backlight
Size: 119 x 60 x 25 mm including knobs
Weight: 150 g including battery
Outputs: 2 x 3.5 mm jacks for headphones and recorder

ultrasound receiver

COD. ART.:KMR-361-base

Professional Ultrasound Detector

The new ultrasound detector is based on heterodyne, demodulation system able to obtain greater frequency division and time expansion. The detector involves a built-in 16-bit recording system using a Compact Flash card (CF). It's equipped with high-quality microphone which give lower noise and lower distortion.
The ultrasound detector also has a built-in recorder, relieving the user from the hassle of using a separate recording device. It can be configured in many operating modes, but thanks to the use of “Profiles”, switching between different modes is made immediately. Each profile contains all the selectable settings such as sampling rate, triggering mode, time expansion factor and LED intensity and can be prepared in advance and saved in the detector.
Either the direct ultrasonic signal, the heterodyne signal or the frequency division signal can be recorded, at any time, onto the CF-card. Spoken comments can be recorded by speaking into the microphone while recording in the direct mode, or in a special comment recording mode (at a lower sampling rate). Upon completion of a recording in the direct mode, the signal can be automatically replayed in time expanded form. Time expansion factors from 1 (original speed) to 30 can be chosen. The recordings can be made by manually starting and stopping or through level-activated (and optional frequency selective) triggering. In this case, the detector can be set up for unattended capture of calls.
In the wav files on the CF-card there are date and time and can be read directly on a PC, using a standard CF-card reader. The detector also has a serial GPS input, making it possible to save GPS position data in the files.





professional ultrasonic receiver

COD. ART.:KMR-361-professional

Specifications KMR-361-professional

Type: Heterodyne, frequency division (x10), time expansion and direct recording
Frequency range: 5 - 235 kHz (frequency division and heterodyne)
5 kHz – 0.4 x sampling frequency (time expansion and direct recording)
Activating the high-pass filter results in a lower frequency limit of about 20 kHz.
Heterodyne freq. resolution: 0.1 kHz (f<17.8 kHz)
0.2 kHz (18-43 kHz)
0.5 kHz (43.5-107 kHz)
1 kHz (108-235 kHz)
Headphones output: 3.5 mm stereo jack, load impedance 32 ohms or greater
HF/MEM output: 3.5 mm stereo jack, load impedance 500 ohms or greater, ca 600 mVrms at 0 dB
Batteries: 5 x AA size, Alkaline or NiMH recommended
External DC supply: 7-10 V, 250 mA (average), 700 mA (peak)
Size: 170 x 80 x 35 mm, excl. microphone
Weight: 600 g incl. batteries

Recording/playback system KMR-361-professional

ADC resolution: 16 bits
Anti-aliasing filter: Adaptive
Sampling rates: 32, 44.1, 48, 96, 100, 192, 200, 250, 300, 384, 400, 500, 750, 768 kHz
Time expansion factors: 1, 2, 3, 5, 10, 20, 30
DAC resolution: 12 bits

GPS connection requirements KMR-361-professional

Interface: RS-232
Protocol: NMEA 0183
Decoded sentences: GPGLL, GPGGA and GPRMC
Baud rate: 4800 Baud

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Disclaimer: The customer is responsible for the knowledge of the laws that rule the use of these devices in his country.

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