Lectrosonics Innovates with Bounded Squelch

Lectrosonics, a manufacturer of wireless microphone systems and audio processing products, introduced a new feature for its Digital Hybrid Wireless receivers that limits the range of the system without altering transmitter power.
Author:
Publish date:

Lectrosonics Innovates with Bounded Squelch

Lectrosonics, a manufacturer of wireless microphone systems and audio processing products, introduced a new feature for its Digital Hybrid Wireless receivers that limits the range of the system without altering transmitter power.

Lectrosonics VRM with Bounded Squelch

Lectrosonics, a manufacturer of wireless microphone systems and audio processing products, introduced a new feature for its Digital Hybrid Wireless receivers that limits the range of the system without altering transmitter power. The new Bounded Squelch feature is in response to users concerned about leakage of wireless microphone transmissions when several facilities are in close proximity, such as theaters in downtown areas or adjacent TV studios, company officials said. The traditional method of limiting range by using very low transmitter power is demonstrably a poor solution and has become less and less effective due to rising RF noise floors in urban areas, according to Lectrosonics. Moreover, the continual deployment of white spaces devices may cause increasing problems with low-power transmissions.

Bounded Squelch solves the cross interference of close installations by measuring the precise latency (delay) between transmitter and receiver, cross-referenced to the specific transmitter frequency chosen. Since RF transmissions operate at virtually the speed of light, this latency can be precisely calculated.

"This breakthrough should have a major impact on the theatre market," said Larry Fisher, president of Lectrosonics, in a statement. "Now two stages that are 500 feet apart can each set the Boundary Squelch on their receivers for 250 feet, allowing plenty of range for each stage and completely eliminating pesky cross interference."

Fisher said that users should make sure to use the correct Nominal Velocity of Propagation (NVOP) for their antenna cables to remove the added delay of the cables. For instance, a 50-foot length of Belden 9913 with a NVOP constant of 84 percent would add an additional delay of about 60 feet. This must added to the desired distance value at the receiver.

A secondary benefit of Bounded Squelch is the automatic removal of RF reflections, since multiple reflections have a longer path length. Thus, diversity may no longer be needed for dropout-free reception, thereby reducing system cost, according to the compant

Bounded Squelch is part of firmware version 4.01.11 and will be available for download from the Lectrosonics website. Included in the firmware update package is an iPhone app that includes a map of all known theaters, churches, civic venues, TV studios, and film sets, and the exact distances between them. Users can call up a specific location by zip code and have access to the data needed to set up their Bounded Squelch receivers.

Featured

Related

On the Circuit: Welcome to SVConline

As you read this we are probably in beta with our ambitious new website. You may have even seen it, since we are going to go live while still in process. I understand that’s a thing these days.This is a big, important upgrade for SVC. We built our original website 10 years ago ...read more

Flash Class: IT Networking for AV

In this very practical session we will demystify two key fundamentals of modern networking: the OSI model and the IP address. If terms such as Layer 2, Layer 3, VLAN, DHCP, and IP address device discovery and configuration come up in your work (and they should!), this 45-minute ...read more

AVI-SPL Wins Virginia AV Contract

AVI-SPL Wins Virginia AV ContractAVI-SPL, a global integrator of pro AV, video conferencing and telepresence systems, was recently awarded a two-year contract to supply AV services for the Commonwealth of Virginia.AVI-SPL, a global integrator of pro AV, video conferencing and ...read more

BSS Audio Ships Ethernet AVB Switch

BSS Audio Ships Ethernet AVB SwitchHarman's BSS Audio announced that the GS724T 24-Port Ethernet AVB Switch is now shipping.BSS GS724T AVB switchHarman's BSS Audio announced that the GS724T 24-Port Ethernet AVB Switch is now shipping. The BSS Audio GS724T is co-branded with ...read more

Harman's HiQnet 3.0 Supports AVB

Harman's HiQnet 3.0 Supports AVBAt InfoComm 2011, Harman Professional introduced of its HiQnet System Architect 3.0 system configuration software, the first version of System Architect to provide Audio Video Bridging (AVB) capabilities.At InfoComm 2011, Harman Professional ...read more