Frequently Asked Questions

This page provides answers to the most common questions people have about Telex® RadioCom™. It is updated frequently, so check back often for answers to new questions.

Can more than one system be used simultaneously?

Can the receiver receive other transmissions when the transmitter is turned off?

Do I need to include documentation when sending products in for service or repair?

Does Telex® RadioCom™ stock products?

How can I report an error or make suggestion about this website?

How long is the Telex® RadioCom™ warranty?

In what frequency band do Telex® RadioCom™ systems operate?

Is the system more sensitive in any one particular direction?

What are the pin-outs for line cables and headsets?

What is EDR?

What is the difference between headset connectors?

What is the Telex® & RTS® Intercom RSS feed?

What is the Telex® RadioCom™ wireless IFB system?

What services does Telex® RadioCom™ technical support provide?

Where can I find information about Telex Legacy™ football coach headsets?

Where should I send Telex® or RTS® products in need of service or repair?

Why choose Telex® RadioCom™?

Why do some documents on this website fail to load, or load erroneously?


Can more than one system be used simultaneously?
Yes but never on the same frequency. You will need to have different frequencies for every receiver/transmitter combination. All transmitters are factory set for specific frequencies.
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Can the receiver receive other transmissions when the transmitter is turned off?
Yes it can. Telex® RadioCom™ systems operate in the VHF Band between 60-72MHz. However, it is not susceptible to radio wave skip, CB'ers or standard FM radio transmissions.
The frequency your system operates on is computer selected for least interference, but there is no such thing as a 100% clear channel all the time, anywhere in the USA, forever!
If the system is going to be used in a permanent fixed location, it should operate interference free until such a time or date when someone else begins using the same frequency.
If the system is going to be moving among various locations, you may run into occasional frequency conflicts.
Whenever the system is in use, the transmitter should be left on to prevent the receiver from picking up outside interference.
Figure 1
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Do I need to include documentation when sending products in for service or repair?
Yes, you must include the Repair Information Form when sending products in for service or repair. Click here to download the Repair Information Form. The form must be filled out as completely as possible.
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Does Telex® RadioCom™ stock products?
No, Telex® RadioCom™ products are built-to-order. Products are built and shipped on a first-come first-serve basis.
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How can I report an error or make suggestion about this website?
You can report errors and make suggestions about this website to the Telex® Intercom Webmaster at the E-mail address below. All valid concerns will be considered, and you will be notified if a solution is implemented.
Intercom.Webmaster@us.telex.com
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How long is the Telex® RadioCom™ warranty?
The warranty period on standard Telex® RadioCom™ components is three years, excluding accessories. For questions regarding warranty terms on specific products, please contact your nearest Telex® RadioCom™ representative.
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In what frequency band do Telex® RadioCom™ systems operate?
The Telex® RadioCom™ systems feature a synthesized transmitter and a synthesized receiver operating in the VHF band between 60-72MHz. See Figure 1 for standard frequencies available. Up to five transmitter channels can be utilized by any number of receivers in any given area.
Figure 1
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Is the system more sensitive in any one particular direction?
No, the transmitter's antenna radiates equally in all directions, but the signal is attenuated by your body, walls or other surrounding objects. The receiving antenna is essentially sensitive in all directions as well.
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What are the pin-outs for line cables and headsets?
RTS® Two-Wire:
Pin 1: Common
Pin 2: Channel 1 Audio + 30VDC
Pin 3: Channel 2 Audio

Telex® Audiocom®:
Pin 1: Common
Pin 2: Audio Low + 24VDC
Pin 3: Audio High + 24VDC

Telex® Intercom Headsets:
4-Pin:
Pin 1: Microphone Common
Pin 2: Microphone "Hot"
Pin 3: Headphone Common
Pin 4: Headphone "Hot"

5-Pin:
Pin 1: Microphone Common
Pin 2: Microphone "Hot"
Pin 3: Headphone Common
Pin 4: Left Headphone "Hot"
Pin 5: Right Headphone "Hot"
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What is EDR?
EDR stands for Enhanced Dynamic Range (compounded) audio. EDR improves the signal-to-noise ratio providing much better audio quality.
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What is the difference between headset connectors?
A4F: 4 pin Female XLR (Most Commonly Used on Telex® Audiocom®)
A4M: 4 pin Male XLR (Most Commonly Used on RTS®)
A5F: 5 pin Female XLR
A5M: 5 pin Male XLR

Example of How to Order:
PH-44 Dual Sided Light-Weight Headset terminated with a 4 pin female XLR:
PH-44

PH-44 Dual Sided Light-Weight Headset terminated with a 4 pin male XLR:
PH-44R
PH-44 Dual Sided Light-Weight Headset terminated with a 5 pin female XLR:
PH-44A5

PH-44 Dual Sided Light-Weight Headset terminated with a 5 pin male XLR:
PH-44R5
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What is the Telex® & RTS® Intercom RSS feed?
Our RSS feed provides a way for users to be notified of the latest Telex® & RTS® Intercom documentation automatically. Every time a new document is published to the website, feed subscribers are the first to know about it. Participation is completely anonymous, and you can subscribe with two clicks.
Open the Telex® & RTS® Intercom RSS feed.
Note: RSS feeds require a feed reader, which is included in modern browsers such as Internet Explorer 7 and Firefox.
Learn more about viewing RSS feeds in Internet Explorer 7 | Learn more about viewing RSS feeds in Firefox
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What is the Telex® RadioCom™ wireless IFB system?
Transmitter:
The transmitter generates and amplifies an RF (Radio Frequency) carrier signal, modulates this carrier with the microphone signal, and radiates the modulated RF carrier.
Receiver:
The FM VHF receiver is tuned to the frequency of the transmitter. The receiver picks up the radiated RF signal from the transmitter through the antenna and converts the RF signal into audio voltages for use with an earphone, headphone, button receiver, neckloop, etc. The receiver frequency must be matched to the transmitter frequency.
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What services does Telex® RadioCom™ technical support provide?
Telex® RadioCom™ technical support provides the following services:
• Troubleshooting issues with products
• Answering simple system design questions
• Answering product compatibility/features questions
• Looking up part numbers to be ordered from the Lincoln factory

Telex® RadioCom™ technical support does not provide the following services:
• Updates on PO's
• Price Quotes
• Product Availability
• Issuing RMA's for Repairs
• System Design
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Where can I find information about Telex Legacy™ football coach headsets?
12000 Portland Avenue South
Burnsville, MN 55337
Toll-Free: 877-863-4169
Fax: 952-884-0043
E-mail: telexlegacysales"at"us.telex.com
Web: www.telexlegacy.com
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Where should I send Telex® or RTS® products in need of service or repair?
For Telex® RadioCom™, RTS®, or Telex® Audiocom® products:
Bosch Communications Systems
8601 E Cornhusker Hwy
Lincon, NE 68507
attn: Service & Repair
E-mail: Repair.Lincoln@us.telex.com
Toll Free: 1-800-553-5992
Direct Main: 402-467-3279
Fax: 1-402-467-3279

For Telex® intercom headsets:
Bosch Communications Systems
1720 E 14th St
Glencoe, MN 55336
attn: Service & Repair
E-mail: Repair.Glencoe@us.telex.com
Toll Free: 1-800-218-2410
Direct Main: 320-864-3177
Fax: 1-320-864-3225

*Remember to include the Repair Information Form when send products in for repair.
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Why choose Telex® RadioCom™?
Telex® has been the leading manufacturer of wireless intercom systems and hardwired intercom for over 25 years. With mission-critical installations in every corner of the world, Telex® RadioCom™ wireless intercom systems provide the widest range of rugged and reliable intercommunications solutions for virtually any application.
Telex® RadioCom™ wireless intercom systems lead the industry with a complete suite of full-duplex, highly configurable and expandable wireless intercom system platforms. With multiple award-winning innovations such as the BTR-800 two-channel frequency agile wireless intercom, the TR-825 two-channel 'stereo' beltpack transceiver and proprietary digital encryption, Telex® RadioCom™ has led the way with innovative technology that allows users to mover around freely while maintaining 'wired-like' quality and reliability. Telex® RadioCom™ wireless intercom systems are utilized in virtually every kind of application and venue throughout the world.
In September 2006, Bosch Security Systems Worldwide, a division of The Bosch Group, bought Telex Communications, Inc. and formed Bosch Communications Systems. The acquisition brings the well-known Bosch quality standards to Telex® through streamlined and modernized processes, as well as a renewed commitment to research and development.
Telex® is proud to be a part of Bosch Security Systems, a division of The Bosch Group that sold products valued at one billion euros in 2005. Bosch Security Systems employs more than 7800 associates, in more than 40 locations in Europe, the Americas and Asia Pacific.
Whatever your requirements may be, Telex® & RTS® have the intercom system that is right for you. Telex® & RTS® intercoms are the systems choice among communications professionals everywhere. Why not make it yours!
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Why do some documents on this website fail to load, or load erroneously?
The documentation on this website (user manuals, brochures, etc) is in Adobe® PDF format. In order to load these documents, you must have the latest version of Adobe® Reader® installed on your computer, currently version 8. Click here to download the latest (free) version of Adobe® Reader®. If you cannot install software on your computer, contact your IT department and ask for the latest version of Adobe® Reader®. If you require Telex® RadioCom™ documentation in an alternative format, send a request to the Telex® & RTS® Intercom Webmaster.
Intercom.Webmaster@us.telex.com
Get Adobe® Reader®
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