
BTR-24
TR-24
Base Station
Beltpack
BTR-24 & TR-24
2.4 GHz Wireless Intercom
The Telex RadioCom BTR-24 and TR-24 series intercom is a full duplex (simultaneous talk and listen) wireless intercom system 
that offers a complete stand alone solution for 2 to 10 users utilizing the full duplex feature and an unlimited number of listen-only 
users. The BTR-24 system offers easy set-up, durable beltpacks, 64 bit audio encryption, easy system expansion and a 3 year 
warranty. The Telex RadioCom BTR-24 system operates utilizing the license free 2.4 GHz IEEE 802.11b “WiFi” standard. 
The BTR-24 system incorporates the option of three audio channels that are selectable at each TR-24 beltpack. The TR-24 
beltpacks also provide the user with adjustable volume control, headset microphone level and local side tone level. The TR-24 
will operate with Dynamic or Electret headset microphones and has a built-in lithium ion battery pack that will provide up to 8 
hours of uninterrupted operation.
Upon start-up the BTR-24 base station automatically scans and selects the best RF (radio frequency) channel for communication with a feature called ClearScan. The BTR-24 also has a built-in lithium ion battery pack that will provide up to 10 hours of 
uninterrupted operation or can be operated with the included wall mount AC power supply. The BTR-24 also includes rack mount 
hardware.
Features
License Free Operation
64 Bit Encrypted Audio
Full Duplex Operation
3 Audio Channels
Automatic RF Channel Selection via ClearScan
Independent Volume Control and Headset Mic Level 
Control
System Supports Up To 10 Beltpacks (Full-Duplex)
Easy Set-Up and Operation
Operates on IEEE 802.11b “WiFi” Standard
Operating Range Up To 800 ft, Line-of-Sight (Beltpack to 
Base Station)
Low Battery Indicators on Beltpack and Base Station
Battery Charge Indicators on Beltpack and Base Station
Rack Mount for BTR-24 Included
Independent Local Side Tone Level Control
Programmable Beltpacks for Remote Group Operation
Built In Lithium-Ion Battery Packs on BTR-24 and TR-24
Line Drawing
BTR-24 TR-24

BTR-24 & TR-24 Specications
Frequency Band of Operation
North America: 2.412-2.462 GHz 
Europe: 2.412-2.472 GHz 
Beltpack Headset Output 
200 mW into 300 ohms (1% distortion)
Technology
2.4 GHz, IEEE 802.11b Wireless LAN Standard (WiFi)
FCC License
None Required (License Free Use)
Number of Users
2 to 10 Users per BTR-24 Base Station (Full-Duplex)
Encryption
64 Bit (DES) Encryption Key
Battery Type
Lithium Ion Rechargeable (Base Station and Beltpack)
Battery Life – BTR-24
10 Hrs (charge time 10-14 Hrs)
Battery Life – TR-24
8 Hrs (charge time 6-8 Hrs)
Frequency Response
400 Hz to 5500 Hz
Dynamic Range
>75 dB
Antenna
TR-24 Beltpack = Internal 
BTR-24 Base Station = External TNC-RP
Headsets
Dynamic or Electret Microphone elements can be used 
with TR-24 Beltpack
Battery Status Indicators
Included on TR-24 and BTR-24
Charge Status Indicators
Included on TR-24 and BTR-24
Mic Level Adjustment
Programmable on TR-24, with Voice Prompts
Local Sidetone Adjustment
Programmable on TR-24, with Voice Prompts
Channel Indicators
TR-24 Beltpack – YES, Green LED 
BTR-24 Base Station – YES, 7 Segment LED
Warranty
3 Year Warranty
Product Dimensions/Weight 
BTR-24
6.00”L x 7.50”W x 1.72”H (15.24cm x 19.05cm x 
4.27cm), 
2 lbs 11 oz (.95 kg)
TR-24
5.25”L x 3.75”W x 1.68”H (13.34cm x 9.53cm x 4.27cm), 
12 oz (.45 kg)
Shipping Dimensions/Weight 
BTR-24 (Packaged, Includes rack mounts, antennas
and power supply)
18.20”L x 11.50”W x 3.90”H (46.23cm x 29.21cm x 
Contact Information
Telex Communications, Inc. 
12000 Portland Avenue South 
Burnsville, Minnesota 55337 
Telephone: 877-863-4169 
Fax: (800) 323-0498
Form Number: LIT000093000 Rev B 
Date: August 2008
9.91cm), 5 lbs 7 oz (2.59 kg) 
TR-24 (Packaged, Includes power supply)
13.25”L x 9”W x 3.60”H (33.66cm x 22.86cm x 9.14cm), 
1 lb 10 oz ( .49 kg) 
SYS-243 (Packaged system, 3 TR-24’s, 1 BTR-24, 
antennas, antennas and power supply)
25.30”L x 21”W x 9.30”H (64.26cm x 53.34cm x 
23.62cm), 22 lbs 3 oz (10.12 kg)
Ordering Information
BTR-24 2.4 GHz multi-channel wireless base station 
access point 
Catalog Number: PRD000066000 
TR-24 2.4 GHz multi-channel wireless beltpack with 
A4M headset connector 
Catalog Number: PRD000065000 
SY3-243 2.4 GHz multi-channel wireless beltpack and 
base station system 
Catalog Number: SYS000007000 
PH-100 Single Sided Headset with A4F connector 
Catalog Number: 301581007 
PH-200 Dual Sided Headset with A4F connector 
Catalog Number: 301581002 
HR-1 Single Sided Headset with A4F connector 
Catalog Number: 300534007 
HR-2 Dual Sided Headset with A4F connector 
Catalog Number: 300534000 
PH-1 Single Sided Headset with A4F connector 
Catalog Number: 64438100 
PH-2 Dual Sided Headset with A4F connector 
Catalog Number: 64437100 
RA-3 Omni Antenna (3 dB), with TNC reverse polarity 
connector 
Catalog Number: 302054003 
RA-7 Omni Antenna (7 dB), with TNC reverse polarity 
connector 
Catalog Number: 302054004 
RA-5 Omni Antenna (5 dB), with TNC reverse polarity 
connector 
Catalog Number: 302054005 
FP-11 Flat Panel Directional Antenna (11 dB) with 
TNC reverse polarity connector 
Catalog Number: 302054006 
RPT-3 3FT Coax with TNC reverse polarity connector 
Catalog Number: 302054007
RPT-10 
10ft Coax with TNC reverse polarity connector 
Catalog Number: 302054008 
TNC-RP TNC reverse polarity coupler (jack-to-jack) 
Catalog Number: 302054009 
CC-24 Carry case for BTR-24 system 
Catalog Number: 302054010 
LG-Y Headset Y cable for Telex Legacy 
Catalog Number: 302054012 
LG-PS US power supply for BTR-24 and TR-24 
Catalog Number: 532091000 
ANT-FP Dual Diversity, Flat Patch Antenna with Coax 
Catalog Number: 302054001 
ANT-FPM Tilt and Swivel Antenna Mount Bracket 
Catalog Number: 302054000 
XOB Adjustable Nylon Belt 
Catalog Number: 302054002
Telex Legacy Systems do not include headsets. Headsets must be ordered separately. 
Only Telex Headsets with dynamic microphones are compatible for use with Telex Legacy 
systems.
This specications information is preliminary and is subject to change without notication.
Brand names mentioned are the property of their respective companies.