Bat Detector Specs

- Time Expansion -

Pettersson D-240  

Type: Heterodyne and time expansion (x10)
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: 25 mA typ. (replay) including LCD backlight
Comment switch: Yes
Memory size: 512k x 8
Sampling frequency: 300 kHz
Resolution: 8 bits
Maximum storage time: 1.7 sec.
Size: 119 x 60 x 25 mm including knobs
Weight: 160 g. including battery
Outputs: 2 x 3.5 mm jacks for headphones and tape recorder.

Pettersson D-240X

Type: Heterodyne and time expansion (x10)
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: 30 mA typ. (replay) including LCD backlight
Comment switch: Yes
Memory size: 1M x 8
Sampling frequency: 307 kHz
Resolution: 8 bits
Storage time: 3.4, 1.7 or 0.1 sec. (selectable via switch)
Trigger modes: Manual, level - broadband, level - narrowband
Pretrigger: 50% of the selected storage time
Miscellaneous: Overload indicator, adjustable input gain, replay of signal in memory through heterodyne system, control output for tape recorder

Size: 119 x 60 x 25 mm including knobs
Weight: 170 g. including battery
Outputs: 2 x 3.5 mm jacks for headphones and tape recorder.

Pettersson D-980

Type: Scanning heterodyne, retained amplitude frequency division and time expansion
Frequency range: 10 - 200 kHz (time expansion system 10 - 150 kHz )
Display accuracy: +/- 0.2 kHz
Bandwidth: 6 kHz (+/- 3 kHz), -6 dB
Frequency division ratios: 10 or 20
Batteries: 2 x IEC 6LF22 (9V)
Quiescent current: 39 mA typ.
Comment switch: Yes
Time expansion factor: 10
Memory size: 1024k x 8 (4096k x 8 as option)
Sampling frequency: 350 kHz
Resolution: 8 bits
Triggering modes: Level, autoarm, manual start/stop
Pretrigger time: 1 sec.
Maximum storage time: 3 sec. (3 / 12 sec. as option)
Size: 160 x 90 x 45 mm (170 x 100 x 65 including knobs etc.)
Weight: 700 g. including batteries
Outputs: 4 x RCA/phono jacks for HF and AF outputs (tape recorder). 1 x 3.5 mm jack for headphones.