This product is listed in: Audio Surveillance Equipment

Throwing Audio Transmitter with Receiver

Product number: PKI 2330

In many situations secret discussions are held in open areas and it always requires a large range of know-how, special technical devices and fantasy to pick up such conversations. This throwing transmitter covers all these criteria and has especially been constructed by PKI ELECTRONIC INTELLIGENCE GmbH for government agencies being involved in such special tasks. Thanks to its extremely strong construction, its very short antenna and long operation time the PKI 2330 is the best choice for such applications. Just put the lithium battery cell into the unit and it is ready for operation. Now throw the PKI 2330 into the direction of the persons to be observed. The highly sensitive microphone will pick up every sound from a distance of approx. 10 meters, so that even if the transmitter will not match the direct and correct place, the spoken words clearly transmitted from the receiver can be stored on any recorder.

FrequenciesUHF 370 - 430 MHz
Power supply9V block battery
DemodulationFM narrow band@6 kHz
Spurious suppressionBetter than 40 dB
SensitivityBetter than 0,25µV at 12dB
Frequency stabilityBetter than +/- 2 ppm (0°C - 50°C)
Operating time8 hrs
Squelch range0,2µV - 1,5µV
Antenna50 ohm
Weight180 g
Dimensions140 x 77 x 24 mm
Audio output-socketHeadphone and recorder
Features includedChannel selector, squelch control, volume control, antenna connector
The housing consists of a grey rubber ball with 28 mm diameter
Output power10 mW
High sensitive microphone-62 dB
AntennaShort wire
BatteryLithium 3V for 30 hrs
Weight15 g
  • Used wherever conversations take place outside. Just throw the PKI 2330 direktly to that place and listen.
  • Special aluminium housing for high impacts with smallest dimensions of 20mm diameter x 10mm only
  •  At around 427MHz
  • 5KHz modulation
  • Operated by standard lithium cell