To supplement the story, "Can You Hear Me Now?," this is an additional resource of companies that sell tactical communications equipment.

Con-Space

Con-Space's SR65i handheld radio accessory makes using a radio easy in any noise conditions, even when moving from low-noise to explosive environments. The SR65i can be used with a throat mic, allowing users to talk normally or even whisper and still be heard. The unit comes equipped with a push-to-talk switch that can be activated even through heavy protective clothing.

Optional remote push-to-talk switches allow for hands-free radio communication, making it ideal for tactical situations. The radio accessory is suitable for a wide range of applications, such as sniper missions and riot control operations.

Dataradio

The GeminiPD+ is a private RF mobile radio modem incorporating an advanced radio design, Dataradio's DSP Parallel Decode modem, and a built-in GPS receiver. The GeminiPD+ uses dual receivers to decode messages in parallel, providing increased performance for fringe coverage areas. Plus, out-of-band signaling enables GeminiPD+ to transmit GPS position reports with no time delays or other adverse effects on system performance.

Dataradio's use of technology in the GeminiPD+ takes into account current needs as well as room for future upgrades. The unit's Parallel Decode technology features dual receivers for added decode sensitivity in multi-path and fading environments. A three-times faster CPU and four times more DSP memory for future upgrades. GeminiPD+ also supports smart IP network connections, while its DSP-based modem design provides added system performance with fewer retries and more effective through-put. The number and function of channels on the system provides flexibility. The unit features up to 16 internally stored, flash-EEP ROM programmable channels. Automatic channel changing allows for improved roaming capabilities. An internal 12-channel parallel GPS receiver and three RS-232 data ports with built-in multiplexer allow for even greater adaptability.

New Eagle International

The New Eagle Enforcer Series I and II headsets are a hybrid of the company's popular Special Operations headset. Although the upper headset assembly is exactly the same as the Special Operations version, the Enforcer Series differs in that the metal push-to-talk box has been placed in an inline circuitry housing. The housing incorporates the circuitry for the user's portable radio. A cable exiting from the bottom of the inline housing interfaces the headset with a radio.

On the Enforcer Series I, another cable exits the top of the housing and incorporates a hard wired/waterproof remote switch. The switch is designed so that it may be positioned on the finger or affixed to a weapon or the body. The Enforcer Series II is even more streamlined than the Enforcer Series I. Rather than using two cables, the Series II has a push-to-talk button built into the circuitry housing/transition module that replaces the second cable, making it a one-cable system. The Enforcer Series headsets are available for most portable radios.

Nextlink

The Invisio Bone Mic Headset from Nextlink is designed with lighter, more durable material than previous versions. It also features a more comfortable fit that allows officers to wear the device for extended periods of time. Both the microphone and loudspeaker fit in one ear, giving the user freedom of movement while also maximizing function. The speaker in the ear detects vibrations that travel from the jawbone during speaking, optimizing sound quality and voice transmission in loud conditions by preventing peripheral sound waves from interfering. This allows you to communicate clearly with only a whisper. Nextlink has integrated numerous push-to-talk switches into the unit for tactical applications.

The Invisio headset is available in standard and custom-made models. The custom model uses a headset fitted to the ear of the individual for optimal comfort and fit.

Tactical Command Industries

The Liberator II tactical headset from Tactical Command Industries was designed and engineered to meet the specifications of tactical operators. The next generation of the popular Liberator headset, Liberator II features new, low-profile earcups that allow users to comfortably wear ballistic helmets over it. The headset can interface with practically any portable radio model. Dual-Comm and single-Comm versions are available.

Situational Awareness Enhancement (SAE) compression technology provides electronic hearing protection and 360-degree ambient sound reproduction in stereo. Dual external microphones continually process ambient sounds and instantaneously provide NNR 22 dBA hearing protection when ambient sound levels exceed 82 dBA.