Summary of Contents for Ocean Technology Systems Buddy Phone 2-Channel
- Page 1 Buddy Phone ® 2-Channel Single Sideband Acoustic Telephone User’s Guide “Why Wait to Communicate?”...
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Page 2: Important Safety Notice
Refer to the Library page of our Web site, www.otscomm.com, for a list of any changes made to this manual since its publication. Copyright © 2009, 2012, 2014, 2017 by Undersea Systems International, Inc., dba Ocean Technology Systems . All rights reserved. Specifications are subject to change without prior notice. -
Page 3: Table Of Contents
No license or rights to manufacture, reproduce, and/or sell either the manual or articles described herein are given. Undersea Systems International, Inc., dba Ocean Technology Systems, reserves the right to change specifications without notice. It is recommended that all users read and fully understand this manual before using a Buddy Phone ®... -
Page 4: Introduction
INTRODUCTION Congratulations! You have just purchased the finest, state-of-the-art underwater communicator in the world. The Buddy Phone D2 is a digital, micro-miniature, ® ultrasonic transceiver allowing communication between two or more scuba divers or surface stations. Using “Digital Signal Processing” (DSP) techniques, the Buddy Phone produces uncompromising speech clarity. -
Page 5: Buddy Phone ® Specifications
Table 1: Other Transceivers Compatible with the Buddy Phone Brand Diver Transceivers Surface Transceivers Aquacom SSB-2010 STX-101 surface station ® SSB-1001B STX-101M surface station Magnacom MAG-1003D MAG-1001S (standard) ® MAG-1004HS MAG-1004-PS portable surface unit BUDDY PHONE SPECIFICATIONS ® Nominal Range: 50 m to 500 m, depending on sea conditions and noise levels in the water Transmission Type:... -
Page 6: Battery Installation
BATTERY INSTALLATION 9-volt transistor batteries should be used with the Buddy Phone. The most readily available is the alkaline type 522 or equivalent. Increased battery life can be gained by using lithium (or the new, rechargeable Li-polymer) batteries. Battery installation is easy and straightforward for all Buddy Phone models (Figure 1): 1. -
Page 7: Low-Battery Alert
® The default channels are one and four. Why channel four? Channel 4 corresponds to standard channels used by most transceivers that Ocean Technology Systems manufactures. Since channel four is farther away from channel one, there is likely less cross-channel interference from those operating on that channel. -
Page 8: Masks
MASKS OTS GUARDIAN / STEALTH FFM The 2-Channel OTS Buddy Phone (OTS-BUD-D2) was designed to operate ® with OTS’s, state-of-the-art full-face masks (FFMs), including the Guardian and Stealth. Figure 3 shows the OTS-BUD-D2 installed on the Guardian FFM. If you purchased the two pieces separately and plan to install the Buddy Phone yourself, follow these easy steps: 1. -
Page 9: Ots Spectrum Ffm
To transmit, depress the PTT button located on the PTT module. Releasing the button puts it in receive/standby mode automatically. Refer to the installation instructions included with the OTS Buddy Phone for more information and illustrations. OTS SPECTRUM FULL FACE MASK 1. -
Page 10: Interspiro Divator Mkii Ffm
To transmit, depress the PTT button located on the PTT module. Releasing the button puts it in receive/standby mode automatically. Refer to the installation instructions included with the OTS Buddy Phone for more information and illustrations. INTERSPIRO DIVATOR MKII FFM The MKII Buddy Phone (MKII-BUD-D2) was designed to operate with ®... -
Page 11: M-48 Ffm
8. Position the Buddy Phone as far back as possible to allow for sufficient tightening of the mask strap. 9. Don the mask and tighten the mask straps sufficiently. Ensure the microphone is positioned as close to your lips as possible (less than 1/4 inch is best). -
Page 12: Scubapro Ffm
Fully insert the upper right head strap of the mask into the strap retainer slot on the M-48 Buddy Phone so that the Buddy Phone will be positioned over the right ear. Reinstall the pod onto the mask. Don the mask and assure the microphone is positioned as close to your lips, at the right corner of your mouth, as possible (less than 1/4 inch is best). -
Page 13: Rx-100 Receive-Only Buddy Phone
6. Fully insert the upper left head strap of the mask into the strap retainer slot on the Buddy Phone so that the Buddy Phone will be positioned over the left ear. 7. Don the mask and assure the microphone is positioned as close to your lips as possible (less than 1/4 inch is best). -
Page 14: Microphones
earpiece. The earphone is designed to allow easy listening through most hoods. However, it is designed to be most effective when directly over the ear canal. There are many ways to enhance the earphone efficiency. Some diving hoods that are particularly thick may require alteration. -
Page 15: Me-150 Mic(110067-000)
removing the FFM at 30 feet the FFM with exposed microphone had dropped down to 40 feet, the pressure difference may damage the microphone. ME-150 (110067-000) Just like the ME-16R, the ME-150 microphone provides natural voice reproduction while allowing shallow-water immersion and rinsing. In addition to superb clarity, the ME-150 exhibits excellent noise cancellation characteristics. -
Page 16: General Operating Guidelines
When the diver exits the water and the current flow ceases, the associated circuitry switches the power off. There is a delay built into the switch circuitry. The delay lasts for about five minutes and is useful for surface checks (air tests). Do not place the Buddy Phone on a wet surface or wet material;... -
Page 17: Continuous Transmit
procedure is the same for changing from channel 4 to channel 1, only then, press the PTT switch when the voice menu says, “frequency A – channel 1.” As with the volume setting, the voice menu will read back all settings, and the diver can verify the settings agree with desired selections. -
Page 18: Range
even when a hood is worn. Of course, everyone hears differently, so some divers may require hood alterations to improve hearing sensitivity. (See “Transceiver” on page 10.) When receiving underwater communications, remember to listen for an agreed- upon cue such as “alpha” or “bravo” diver, which can prepare a diver for listening. Upon receiving the cue, respond with a “Go ahead”... -
Page 19: Handling And Storage
HANDLING AND STORAGE Do not drop or jar the Buddy Phone; the acoustic transducer located on the side of the housing is sensitive to mechanical shock and can be permanently damaged. The earphone is constructed using state-of-the-art ceramic technology and is designed to be very shock resistant. - Page 20 sound reflected by the surface and bottom may raise the intensity above normal levels (reinforcement) or may introduce destructive interference. The bending of the sound waves by temperature variations also has a great effect on the sound intensity at points remote from the source. If the source of the sound is near the surface, there is some point beyond which sound is not received from the source.
- Page 21 layer. Such layers, in addition to producing rather sharp bending of the sound waves by refraction effects, can serve as reflecting surfaces. The velocity of sound transmission changes only about one percent for a temperature change of 10°F. However, the resultant bending of the sound path has great effect over a distance of several hundred yards.
- Page 22 close to a large object. On the backside of the blocking object, a “zone of silence” is formed in which reception of the transmitted signal is not possible. Divers can reduce “zones of silence” by moving away from, around, or above the blocking object until communication is reestablished (Figure 11).
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Page 23: Limited Warranty
We reserve the right to decline responsibility where repairs have been made or attempted by other than an Ocean Technology Systems factory-trained service center or properly trained personnel. In no event shall Ocean Technology Systems be liable for consequential damages.
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