tecpro by Canford
Linking wireless to analogue 2-wire comms A large number of venues and rental companies use Tecpro, Clear-Com, RTS-TW and similar analogue partyline (sometimes referred to as 2-wire) intercom systems. Many users find that two channels of intercom provide them with all the facilities they need and the only thing they would like to add is a small number of wireless beltpacks to allow selected users to move around freely. While walkie-talkies have their uses, they do not allow simultaneous 2-way (duplex) conversation to take place, so another solution is required.
A few facts about Green-GO DECT wireless
The UHF full duplex wireless options are starting to age. They require a license to be legal and there is concern about the diminishing number of available frequency bands.
• Increase RF range by adding remote antennas so beltpacks can roam
License-free operation is a popular option but intercom systems operating in the 2.4GHz band have generally gone out of favour because of spectrum overload issues that occur when the audience enter the venue carrying their smart phones which immediately start looking for a wifi connection. There is now a reliable and affordable wireless option that will interface robustly with analogue 2-wire intercom and does not require a license in Europe, the USA, Japan or Australia. Green-GO DECT wireless intercom operates in the 1.9GHz band which does not suffer from the saturation issues that plague 2.4GHz. Conversation is full duplex, just like wired comms. This remarkable system was designed by Green-GO Managing Director and PLASA Gottelier Award nominee, Joost van Eenbergen. It is manufactured in Holland alongside DMX and network products from ELC Lighting. Canford is the sole distributor in the UK and Ireland for both GreenGO and ELC products.
• DECT 1.9 GHz license-free wireless intercom • Full duplex, high audio quality, low latency • 2, 3 and 4 channel operation, selectable • Select from 32 channel options held in memory • RF coverage, around 50m - 300m depending on the environment
• Rechargeable Li-Ion battery, removable, quick release (supplied) • 1-way battery charger with mini-USB (supplied) • Optional 6-way battery charger, mains powered, 1U • Register 4 beltpacks to single antenna • Register 4 antennas to single beltpack • Tough, lightweight ABS case • Comprehensive feature set Unfortunately, linking Green-GO to analogue intercom is not as straight forward as it sounds because 2-wire analogue comms operates like an old style telephone system where all conversations are carried on a single pair of copper wires (hence the term 2-wire). This results in audio that has been injected from Green-GO on to the analogue line will immediately return and try to get back on to the Green-GO system, resulting in a nasty echo….
canford.co.uk | UK sales tel: +44 (0)191 4181122 email: sales@canford.co.uk | Int sales tel: +44 (0)191 4181133 email: international@canford.co.uk