OTS SP-100D2 Buddy Phone 2 Channel Surface Station

REG448 900402-000
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This is the OTS SP-100D2 Buddy Phone 2 Channel Surface Station     


  • Nominal Range: 50 to 500 meters (165' to 1,640') depending on sea conditions and noise levels
  • Reference Frequency: 32.768 kHz upper single side band
  • Audio Bandwidth: 300 Hz to 3,000 Hz
  • Automatic Gain Control: Greater than 80 dB
  • Transmitter/Audio Output: 1/2 Watts (Transmitter), 1/2 Watts (Speaker)
  • Microphone: Hand-held, Push-to-Talk, dynamic, 500 Ohm impedance
  • Transducer: Ceramic cylinder attached to a 35 ft. cable with connectors
  • Receiver Sensitivity: Greater than 100 dBv
  • Battery Type/Life: 8AA Alkaline batteries – 10 hours; 16 AA Alkaline batteries – 20 hours
  • Low Battery Alarm: 1 beep every 60 seconds when battery level is below 7V
  • Housing and Dimensions: 7.85 in. H x 9 in. W x 3.4 in. D (19.9 cm x 22.9 cm x 8.6 cm)
  • External Power: 12 VDC at Min. of 1 amp access via front panel mini double banana plug
  • Operates on (8) AA alkaline batteries (not included)
  • Squelch: On/Off selected from front panel
  • Volume: User adjustable from front panel

The SP-100D2 Surface Buddy Phone is newly designed. State-of-the-art Digital Signal Processing circuitry (DSP – known as ” Software Defined Radio”) has been incorporated ensuring great performance and clarity. The new DSP Squelch circuitry is the industry leader.

The SP-100D2 will operate with all single sideband acoustic underwater devices within range and on the same frequency. The user simply places the SP-100D2 Buddy Phone in a secure area, lowers the 35′ transducer cable in the water, turns the power on and talks via a hand-held microphone. All divers and/or other surface stations within range and the same frequency will receive the message. When any other persons within range and on the same frequency talks, the voice will be heard from the front panel speaker of the SP-100D2.

The SP-100D2 Buddy Phone is compact and operates on (8) AA Alkaline batteries, ensuring hours of fun. For those who require extreme long life, two battery packs (16 AA) batteries can be utilized. You can monitor and talk to divers while the action is happening. A must for all dive boats and/or dive operations.

Warning - California Prop 65: Some products on this site can expose you to chemicals including Chloroprene, which is known to the state of California to cause cancer and birth defects or reproductive harm. For more information, go to www.P65Warnings.ca.gov.

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