Lectrosonics UDR700 Encrypted Digital Wireless
The UDR700 receiver is a 19” half-rack 1RU design for use with Lectrosonics 700 Series encrypted digital wireless transmitters. The receiver provides a full complement of controls and indicators for quick setup and full information at a glance.
The 700 Series wireless system provides a combination of CD quality audio with frequency response to 20 kHz, a digital RF link operating on standard UHF frequencies, and advanced encryption of the transmitted signal for applications requiring a high level of security. The audio quality is perfectly at home in the most demanding studio and stage environments, while the true cryptography used in the transmitted RF signal is ideal for security needs in corporate and governmental applications.
Audio is sampled at 44.1 kHz and digitized with a 24-bit converter at the transmitter input. The audio data stream is digitally compressed, adding entropy as a first step in a multi-level encryption process. Random timings during setup on the receiver seed a psuedo-random number generator to create a chaotic scrambling sequence that is mixed with the compressed audio data to generate a cryptographically secure data stream. The signal is decrypted in the the UDR700 receiver and output as as analog audio on a balanced XLR connector, and AES-3id digital audio on a BNC connector.

Lectrosonics UDR200C
The UDR200C consists of two high performance, triple-conversion receivers operating simultaneously. The audio outputs of the receivers are blended in a ratio controlled by the comparative RF levels in the receivers. The multistage RF front-end is a unique design that is tuned by a microprocessor to the selected frequency. The RF and audio performance is extremely stable over a very wide temperature range, making the UDR200C perfectly suited to mounting in studio equipment racks.
The UDR200C receiver design combines the performance of a fixed frequency design with the frequency agility of a synthesized design to alleviate interference problems. There are 256 frequencies that are user selectable in 100kHz steps. As the frequency is changed, the front-end filters automatically retune to follow the operating frequency. Complete monitoring and control of the receiver is available from the control panel of the receiver or via remote computer control using the serial port and supplied LecNet™ software.

Lectrosonics DR175 / R175 / M175DC / H175DC
The Digital Code System is a major technological advance, offering the best solution to the most common and incurable type of interference, which is an external RF signal on or close to the wireless operating frequency. Digital technology is combined with advanced circuit and mechanical design for an overall package clearly superior to any other wireless system in this price range.
A digital code is factory programmed into each transmitter/receiver combination to create a unique control signal for the audio output, rather than simply detecting the presence of an RF signal. Another transmitter on the same frequency cannot open the audio output on a DCS™ receiver, unless it also has the same code. With 6561 different codes available, and dozens of frequencies between 169 and 216 MHz, interference can easily be avoided. The receiver will always remain completely silent during idle periods. Clicks and pops at turn-on and turn-off are also eliminated by the DCS system.
An advanced compandor system reduces noise and hiss to inaudible levels, without the “pumping and breathing” typical of lesser designs. A limiter in the transmitter input prevents overload distortion and further improves the signal to noise ratio of the system.
The single antenna R175 basic receiver (discontinued) delivers the benefits of the DCS system at an economical cost. The dual antenna DR175 diversity receiver (discontinued) adds an advanced ratio combining system with two separate receivers and seamless Opti-Blend^TM combining to solve dropout problems in reflective RF environments. Both receivers feature machined aluminum housings and balanced XLR outputs for use with the finest sound and recording systems.
Two transmitter models are available to accommodate virtually any type of microphone. The belt pack model offers a locking connector and bias voltage to work with any two-wire electret lavalier microphone. The “plug-on” model transmitter will adapt any hand-held dynamic microphone with an XLR connector to wireless operation. A lavalier electret microphone is included free of charge with system packages that include the belt-pack transmitter.
All components in the DCS systems benefit from the latest Surface Mount Technology and the ruggedness of machined aluminum construction.

Shure ULX Professional
Offers an exceptional value in both performance and price, for both working musicians and sound installers. The expanded feature set of the ULXP4 wireless receiver, with advanced settings and controls including lockable settings and group scan, offers a direct path to full, clear audio signals. The low-profile, highly durable body-pack has all the characteristics to meet the demands of high performance. For use with headworn, lavalier and instrument microphones, as well as guitars and basses. Attaches to belt, waistband or guitar strap with clip for hands-free mobility.

Shure U4D / U1 / U2
UHF wireless systems designed for maximum flexibility and versatility of applications. Available as a single(U4S) or dual(U4D) receiver single rack space system. Transmitters include the U1 bodypack or U2 handheld microphone. Features frequency agility, menu driven receiver display, exclusive Shure MARCAD® circuitry, dual RF and audio level meters, network expansion and more. Receivers are AC powered. Transmitters are powered by two 1.5V AA alkaline batteries.

Shure UC4 / UC1 / UC2
Frequency agile UHF wireless system that is the ideal choice for a wide range of applications. Choose from over 100 frequencies with up to 16 system simultaneous operations. Features a built-in adjustable EQ, tone key squelch circuitry that prevents unwanted noise, LED meters, battery gauge on transmitters, combined transmitter power on / off and mute switch. Use of the MARCAD® diversity circuitry for reliable performance.

Sennheiser Evolution EW112-G2 Series

Sennheiser SKM 3072-U

Sennheiser SKM 5000
The SKM 5000 handheld transmitter provides 16 selectable frequencies, making it ideal for any touring or broadcast application. The slender design with the ergonomically-placed, integrated antenna provides an unobtrusive appearance and ensures maximum transmission efficiency. Features include a five-stage audio sensitivity switch which allows sound pressure levels of up to 151dB and a bass roll-off switch for proximity effect compensation.
The standard ME 5005 supercardioid condenser microphone head has an extremely transparent sound and exhibits exceptional gain before feedback. Other heads are available, including condenser omni directional, cardioid, wide cardioid and dynamic supercardioid.

Sennheiser EM 3031-U / EM 3032-U
Single and dual wideband UHF diversity receivers in a one rack space design. 32 programmable receiving frequencies (per receiver), that ensures flexible channel selection. Frequency range 434-960MHz. Both models feature a LC display for frequency, RF and AF levels, low battery display that indicates transmitter battery status, "HiDyn plus" noise reduction system, headphone output. Both models are suitable for multi-channel applications. Supplied with two telescopic antennae, cable and rack mounting kit. Operates from a 115/230V AC power supply.

Sony WRR-840A / WRT-820A / WRT-810A
UHF synthesized wireless system that allows you to access up to 94 selectable frequencies in the 800MHz frequency range. The transmitters include easy to read LCD displays, compact and lightweight designs and 8 hours of continuous operation with 2 AA alkaline batteries. The WRT-810A handheld transmitter includes selectable RF output - either 2.5 or 10mW, compander system, built-in talk switch designed in a rugged housing. The WRR-840A diversity tuner houses dual receivers that include convenient pre-programmed channel plans for multi-channel operations, three selectable output levels, XLR outputs and more. Designed in a one rack space.