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MT-ISDN
VHF
telephone bug
VHF telephone bug to install
in ISDN telephone systems or on derivations
of digital switchboards.
It automatically works when you hold up the receiver.
Distance of transmission around 700 meters.
3 channels available
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Technical data:
- Power supply directly from the telephone line
- Impulse frequency : VHF
- Modulation type: FM max. dev. ± 20KHz
- Harmonic attenuation: min. 18 Dbs
- Dimensions: width 12 mm, depth 8 mm, length 60 mm
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