RTS BTR-800 User manual

F.01U.187.426 Rev. 19 JUNE / 2019
BTR-800, TR-800, TR-825
Professional Wireless Intercom System
Operating Instructions

2 BTR-800, TR-800, TR-825

Table of Contents
INTRODUCTION .............................................7
General Description .............................................. 7
System Features .................................................... 7

BTR-800 BASE STATION ...............................9
Controls and Connections – Front Panel ................... 9
BTR-800 Specifications .......................................... 11

TR-800 BELTPACK .......................................13
Controls and Connections – Top Panel ................... 13
TR-800 Specifications ............................................. 15

TR-825 BELTPACK .......................................17
Controls and Connections – Top Panel ................... 17
TR-825 Specifications ............................................. 19

INITIAL EQUIPMENT SETUP ....................21
Unpacking ............................................................... 21
Antenna Connection ................................................ 22
Antenna Polarization ............................................... 22
Distance between Antennas .................................... 22
Antenna Placement .................................................. 22
Improving Reception and Increasing Range ........... 24
Base Station Set-up ................................................. 25
Location ................................................................... 25
Power Connection ................................................... 25
Transmit Switches ................................................... 25
Internal Transmit Switches ...................................... 26
Intercom Switch ...................................................... 26
Intercom Interface ................................................... 26
Dual Listen Functionality ........................................ 28
Auxiliary Input/Output ............................................ 29
Internal Auxiliary Input Routing Switch ................. 29
Stage Announce / Relay Contacts ........................... 30
Base Station Link .................................................... 31
Beltpack Setup ......................................................... 32
Antenna Connection ................................................ 33
Transmit Mode ........................................................ 33
Headset Connection ................................................. 33

PRE-WALK-THRU CHECKLIST .................35

SYSTEM OPERATION ..................................37
Frequency Plan Overview ....................................... 37
Factory-Defined Groups .......................................... 37
User-Programmable Groups .................................... 37
System Quick Start .................................................. 37
Base Station Operation ............................................ 38
Power ....................................................................... 38
Local Headset .......................................................... 38
Portable Station Connect .........................................38
Intercom A and B ....................................................38
Auxiliary ..................................................................38
Display Contrast ......................................................39
BTR-800 Menu Structure ....................................40
Main Screen Flowchart ............................................40
Power-Up Screen .....................................................41
Operating Screen .....................................................41
Beltpack Activity Code Definitions ........................42
Group/Channel Select ..............................................43
Group/Frequency Select ..........................................44
Frequency Edit
(User-Programmed Groups Only) ...........................45
ClearScan™ .............................................................46
Special Key Sequences ............................................47
Lockout ....................................................................47
Copy .........................................................................47
1st Use Default ........................................................47
Factory Default ........................................................47
Beltpack Operation ..................................................48
On/Off and Volume Control ....................................48
Battery Check ..........................................................48
Talk Button ..............................................................48
Microphone Gain .....................................................48
Audio Channel Select Button ..................................48
Stage Announce (SA) ..............................................48
Wireless Talk Around (WTA) .................................48
TR-800 Menu Structure ......................................49
Beltpack Menu Structure .........................................49
Power-Up Screens ...................................................50
Group/Channel Screen .............................................51
Transmit Screen .......................................................52
Receive 1 Screen .....................................................53
Receive 2 Screen .....................................................54
ClearScan™ .............................................................55
Stage Announce Enable/Disable .............................56
Wireless Talk Around Enable/Disable ....................56
Audio Channel A or B Disable/Enable ....................57
Talk Button Latch on/Latch off ...............................57
Special Key Sequences ............................................58
Lockout ....................................................................58
1st Use Default ........................................................58
Factory Default ........................................................58
TR-825 Menu Structure ......................................59
Beltpack Menu Structure .........................................59
Power-Up Screens ...................................................60
Group/Channel Screen .............................................61
Transmit Screen .......................................................62
Receive 1 Screen .....................................................63
Receive 2 Screen .....................................................64
Audio Output ...........................................................65
ClearScan™ .............................................................66
Stage Announce Enable/Disable .............................67

6 BTR-800, TR-800, TR-825
Wireless Talk Around ............................................. 68
Audio Channel A Options ....................................... 69
Audio Channel B Options ....................................... 70
Special Key Sequences ........................................... 71
Lockout ................................................................... 71
1st Use Default ........................................................ 71
Factory Default ....................................................... 71

SYSTEM WALK-THRU .................................73

TROUBLESHOOTING .................................75

TECH TIPS ....................................................77
Frequency Interaction ............................................. 77
Microphone Gain Adjustment ................................. 77

BATTERY INFORMATION .........................79
Cold Temperatures and Batteries ............................ 79
Battery Life: ............................................................ 79
Battery Warnings .................................................... 79

INTERCOM SYSTEMS 
SPECIFICATIONS ........................................81

ACCESSORIES AND REPLACEMENT
PARTS .............................................................83

CERTIFICATION INFORMATION ............87

THREE BAND BASE STATIONS ................89
Identifying a Three Band Unit ................................ 89
Regulatory Changes and the Three Band ................ 89
Changing Channel Maps ......................................... 89

CHAPTER 1
Introduction
General Description
The RTS BTR-800 UHF Synthesized Wireless intercom
systems offer the ultimate in reliable, high performance, high-
fidelity, full-duplex communications. The BTR-800 system
includes the BTR-800 frequency agile base station, working
with up to four TR-800 or TR-825 frequency agile beltpacks.
The BTR-800 base station provides full-duplex communications
with the beltpacks.
The BTR system incorporates two audio channel operation,
permitting the beltpack operator to choose between two separate
audio channels of communications, with the base station
tracking the beltpack selection. This allows the user the
flexibility to create a party-line and a private line within the
same beltpack.
The BTR-800 system is perfectly suited for stand-alone
operation and also can interface with Audiocom (Telex), RTS
TW, Clear-Com, as well as RTS Matrix systems and other 4-
wire communications systems. In addition to the external
intercom systems interfaces listed above, the system provides
connections for auxiliary balanced audio input and output, as
well as wireless talk-around (WTA) and stage announce (SA)
features.
The RTS BTR series has been designed for reliable, efficient
operation. Operating in the 470 to 722 MHz range, the units
operate reliably at line-of-sight distances of 1,000 feet. With
available antenna systems, from Bosch, the effective operating
range can be extended. The high efficiency beltpacks provide up
to 12 hours of uninterrupted operation using standard alkaline
batteries.
System Features
•Frequency-agile base station and beltpacks. No external
computer/device required to select frequencies.
•Backlit base-station LCD allows the user to easily monitor
the beltpack’s status as well as change base station
frequencies.
•ClearScan™ function on base station and beltpack to
automatically find the best channels on which to operate.
•Full-duplex (simultaneous talk and listen) operation.
•Compatible with Audiocom, RTS TW, Matrix, Clear-
Com®, and other wired intercom types.
•Two channels of intercom audio.
•WTA (Wire less Talk Around) beltpack control. This
feature allows beltpacks to talk to each other, but their
audio is lifted from any wired system connected to the base
station.
•SA (Stage Announce) beltpack control. Allows the user to
direct their audio to a jack on the back of the base for P.A.
systems or other external audio systems.
•Relay contact closure on the base when the SA button is
pressed.
•TR-825 features two audio channel binaural operation in
either stereo or mono mode.
•Beltpack units contained in a weather and shock resistant
die-cast magnesium case.
•Convenient IEC power connector on the base station so the
unit can plug directly to outlets. No in-line or wall plug
power supply.
•Base station comes with rack ears for easy rack mounting.

8 Introduction BTR-800, TR-800, TR-825
FIGURE 1. BTR-800 Block Diagram

CHAPTER 2
BTR-800 Base Station
Controls and Connections – Front Panel
1. Power Switch
2. [MENU] and [SET] buttons - Use to select menus and set
options on the LCD.
3. Backlit Graphics LCD (Liquid Crystal Display)
4. [UP] and [DOWN] buttons - Use to select base station options on
the LCD.
5. Portable Station Connect - Use buttons to enable or disable the
respective receiver’s audio. GREEN LED - Audio enabled, LED
OFF - Audio disabled.
6. Intercom A Controls – Wired intercom A interface controls.
Audio input and output level controls. 2-wire or 4-wire select
button with green LED indicator lights. Selected LED will change
to RED if the input levels are too high.
7. Intercom B Controls – Wired intercom B interface controls.
Audio input and output level controls. 2-wire or 4-wire select
button with green LED indicator lights. Selected LED will change
to RED if the input levels are too high.
8. Auxiliary Controls – Wired auxiliary interface controls. Audio
input and output level controls. GREEN LED = Aux. input
enabled. LED will change to RED if the input levels are too high.
9. Headset Volume – Controls the volume to the headset connection
to #14.
10. Headset Intercom Select – Controls the intercom to which the
local headset is connected. Each press of the button changes the
connection; channel A, channel B, or both.
11. Talk/Overmod Light – LED is green when talk button #13 is
active. A normal mic gain setting will cause the LED to flash red
on the loudest speech levels. If the gain is too high, the LED is red
at normal speech volumes.
12. Microphone Gain – Adjust the headset’s microphone gain.
Adjusts so that the overmod light #11 flashes from green to red on
loudest speech.
13. Talk Button - Press to enable the audio path from the local
handset. LED #11 turns green when enabled. A quick press and
release latches button on. If the talk function is latched on,
pressing the talk button again turns it off.
14. Local Headset Connector - Male XLR connector or female XLR.
A dynamic or electret headset microphone is automatically
detected.
FIGURE 2.
Local Headset Wiring
Male Connector
Female Connector

FIGURE 3.
BTR-800 - Rear Panel
10 BTR-800 Base Station BTR-800, TR-800, TR-825
1. Receive Antenna – Female TNC Connector. Color band on
antenna must match color dot on base station.
2. Transmit Power Switch – HIGH = Transmitters at full
power. NORMAL = Transmitters 10dB below full power.
3. Transmit ON/OFF Switch – Turns the transmitters on or
off.
4. I/C Select Switch – Set to the appropriate 2-wire intercom
type being interfaced to the unit. Set to either Telex, RTS, or
Clear-Com.
5. Base Station Link Jack – When two base stations are
connected through this jack, it allows wireless talk around
(WTA) from the beltpacks to be routed from the system
with it’s transmitters off to the system with it’s transmitters
on.
6. Relay Contact – A dry contact closure which is activated
when a beltpack user presses the stage announce (SA)
button. Normally Open (NO). 1 Amp at 24V maximum.
7. Intercom A – Interface to wired intercom system A. 
2-Wire – Male and female 3-pin XLR connectors wired in
parallel. The connectors are switched to the appropriate
intercom configuration via the I/C Select Switch.
WARNING: Excessive current through the loop thru ports
will damage the intercom! Do not exceed 200
mA current in the 2-wire loop thru circuits.
4-Wire – An RJ-11 type jack compatible with Matrix type
intercom systems.
8. Intercom B – Interface to wired intercom system B. 
2-Wire – Male and female 3-pin XLR connectors wired in
parallel. The connectors are switched to the appropriate
intercom configuration via the I/C Select Switch.
WA R N I N G : Excessive current through the loop thru ports
will damage the intercom! Do not exceed 200
mA current in the 2-wire loop thru circuits.
4-Wire – An RJ-11 type jack compatible with Matrix type
intercom systems.
9. Auxiliary Input/Output – One 3-pin female XLR input
connector and one 3-pin male XLR output connector.
10. Stage Announce Output – Passes the audio from any of
the base stations’s beltpack that have selected stage
announce (SA).
11. Power – IEC receptacle. Accepts 100–240 VAC, 50–60 Hz.
12. Transmit Antenna – Female TNC Connector. Color band
on antenna must match color dot on base station.

BTR-800, TR-800, TR-825 BTR-800 Base Station 11
BTR-800 Specifications
Overall
RF Frequency Range
TX Range
482-608 MHz in 18 MHz TX bands
US/Canada RX Range
572-608 MHz in 18 MHz RX bands
653-663 MHz for 3 band
470-488 MHz for 88 band
Rest of the World RX Range
572-608, 614-722 MHz in 18 MHz RX bands
Power Requirements
100-240 VAC, 50-60 Hz, IEC receptacle
Temperature Range
-4° F - 130° F (-20° C to 55° C)
Dimensions
19.00” W x 1.72” H x 14.00” D 
(48.3 cm x 4.4 cm x 35.6 cm)
Weight
7 lbs x2 oz (3.24 kg)
TX Antenna
1/2 Wave (supplied), TNC Male Connector
RX Antenna
1/2 Wave (supplied), TNC Male Connector
FCC ID
B5DM529
B5DM514
Frequency Response
300 Hz - 8 kHz
Four Wire Input
Level Adjustable (2 Vrms typical)
Four Wire Output
Level Adjustable (2 Vrms typical)
Telex Intercom
Input/Output Level Adjustable (1 Vrms typical),
Line Impedance 300Ω
RTS Intercom
Input/Output Level Adjustable (0.775 Vrms typical),
Line Impedance 200Ω
Clear-Com Intercom
Input/Output Level Adjustable (1 Vrms typical),
Line Impedance 200Ω
Auxiliary Input
Adjustable (2 Vrms typical)
Auxiliary Output
Adjustable (2 Vrms typical into 600Ω)
Stage Announce Output
Internally Adjustable (2 Vrms typical at rated
deviation into 600Ω)
Stage Announce Relay
Dry contact, rated at 1 Amp, 24V Max
Microphone input sensitivity
9mV
Local Headset Output
40mW output into 600Ω (1% Distortion)
Transmitter
Type
Two Synthesized Transmitters
Transmit Power (each transmitter)
100 mW Max (High), 10 mW (Normal)
Modulation Type
FM
Deviation
40 kHz
RF Frequency Stability
0.005%
Modulation Limiter
Peak-Responding Compressor
Radiated Harmonics & Spurious
Exceeds FCC specifications
Receiver
Type
Dual Conversion Superheterodyne, four Independent
Synthesized IFs, FM
RF Sensitivity
<0.8 μV for 12 dB SINAD
Squelch Threshold
20 dB SINAD
IF Selectivity
3 dB at 230 kHz
Image Rejection
70 dB or better
Squelch Quieting
90 dB
RF Frequency Stability
0.005%
Distortion
<1% at full deviation

12 BTR-800 Base Station BTR-800, TR-800, TR-825

CHAPTER 3
TR-800 Beltpack
Controls and Connections – Top Panel
FIGURE 4.
TR-800 Top Panel
1. On/Off & Volume Control – Turns the beltpack power
on and controls headset volume.
2. Wireless Talk Around (WTA) – When pressed, the
user’s audio is disconnected from the wired intercom,
auxiliary input/output and the base station’s local headset.
Other beltpack users, on that audio channel, can hear the
user as normal. The button activates the nearby red LED
as well as the Talk LED, #6, when pressed.
3. Stage Announce (SA) – When pressed, the user’s audio
is routed to the stage announce connector on the back of
the base station. The user also loses their sidetone as an
indication that stage announce is activated. The other
wireless beltpacks and wired users do not hear the user’s
audio. The button is non-latching and activates the nearby
red LED as well as the TALK LED, #6, when pressed.
4. Audio Channel Selection Button – Allows user to select
either audio channel A or B.
5. Bat/Overmod Light (BAT/OM) – Light will flash once
when unit is turned on if the battery is good. If the light
stays on, battery is low. If the light does not flash, battery
is dead. A normal microphone gain setting will cause the
LED to flash at the beginning of most words at normal
speech levels. If the gain is too high, the LED will be red
during the complete word at normal speech levels.
6. Talk Light – LED is on when the talk button, SA or
WTA is active.
7. Talk Button – Press to enable the audio path from the
local headset microphone. The TALK LED, #6, will turn
red when enabled. A quick press and release latches the
talk function, unless latching has been disabled. Holding
the button for over 1/2 a second will cause the audio path
to be enabled only for as long as the button is head. If the
talk function is latched on, pressing the talk button again
will turn it off.

14 TR-800 Beltpack BTR-800, TR-800, TR-825
1. [MENU] and [SET] buttons – Used to select menus and
set option on the LCD
2. LCD (Liquid Crystal Display)
3. [UP] and [DOWN] buttons – Used to select beltpack
options on the LCD.
4. Microphone Gain – Adjusts the headset’s microphone
gain. Adjust so that the BAT/OM LED will flash at the
beginning of most words at normal speech levels.
5. Push-to-Talk/Push-to-Transmit Switch – 
Push-to-Talk (PT TALK) – The transmitter is always on.
No audio set unless the talk switch, WTA or SA button
pressed. Recommended position.

Push-to-Transmit (PT TX) – The transmitter and audio
path are off except when the talk switch, WTA or SA,
button is pressed.
6. Headset Connector – Male XLR connector or female
XLR connector. A dynamic or electret headset
microphone is automatically detected by the beltpack and
a bias voltage supplied, if needed.
7. Battery Latch – Press down to enable the battery pack to
be released. While the latch is held down, slide the
battery pack about 1/8 inch back, toward the latch, until it
stops. Then lift it out.
8. Receive Antenna – Screw type 1/4-wave replaceable
antenna. The color dot on the screw end of the antenna
must match color dot on antenna receptacle.
9. Transmit Antenna – Screw type 1/4-wave replaceable
antenna. The color dot on the screw end of the antenna
must match color dot on antenna receptacle.
FIGURE 5.
TR-800 Rear Panel/Connector/Antennas
Male Connector
Female Connector
FIGURE 6.
Headset Jack Wiring

BTR-800, TR-800, TR-825 TR-800 Beltpack 15
TR-800 Specifications
RF Frequency Range
US/Canada TX Range
572-608 MHz in 18 MHz TX bands
653-663 MHz for 3 bands
470-488 MHz for 88 band
Rest of World TX Range
572-608, 614-722 MHz in 18 MHz TX bands
RX Range
482-608 MHz in 18 MHz RX bands
Power Requirements
6 AA Cells Alkaline (NiMH optional)
Current Draw
140 mA (Push-to-Talk, Talk On)
Temperature Range
-4° F to 130° F (-20° C to 55° C)
Dimensions
3.75” W x 5.05” H x 1.65” D 
(9.5 cm x 12.8 cm x 4.2 cm)
Weight
16 oz (454 g) with alkaline batteries
TX Antenna
1/4 Wave (supplied), Screw type, Replaceable
RX Antenna
1/4 Wave (supplied), Screw type, Replaceable
FCC ID
B5DM518
B5DM515
B5DM536
Frequency Response
300 Hz - 8 kHz
Microphone input sensitivity
7 mV
Local Headset Output
40 mW output into 600Ω (1% distortion)
Transmitter
Type
Synthesized
Transmit Power
50 mW Max (auto-power reduction)
20 mW Max in US 3 Band, 653-663 MHz, auto-
power reduction
Modulation Type
FM
Deviation
40 kHz
RF Frequency Stability
0.005%
Modulation Limiter
Peak-Responding Compressor
Radiated Harmonics & Spurious
Exceeds FCC specifications
Receiver
Type
Dual Conversion Superheterodyne, Synthesized, FM
RF Sensitivity
<0.7 μV for 12 dB SINAD
Squelch Threshold
20 dB SINAD (about 1.0 μV)
IF Selectivity
3 dB at 230 kHz
Image Rejection
70 dB or better
Squelch Quieting
90 dB
RF Frequency Stability
0.005%
Distortion
<1% at full deviation

16 TR-800 Beltpack BTR-800, TR-800, TR-825

CHAPTER 4
TR-825 Beltpack
Controls and Connections – Top Panel
FIGURE 7.
TR-825 Top Panel
1. On/Off and Volume Control – Turns beltpack power on
and controls headset volume for Intercom Channels A and
B. Either knob, A or B, turns the beltpack on. Both knobs
must be off to turn the beltpack off. If only one knob is off,
then only that Intercom Channel, A or B, is off for both
transmit and receive audio.
2. Wireless Talk Around (WTA) – When pressed, the user’s
audio is disconnected from the wired intercom, auxiliary
input/output and the base stations’s local headset. Other
beltpack users, on that audio channel, can hear the user as
normal. The default setting is software selectable, as to
which Intercom Channel, A, B, A+B, or currently selected
channel, is activated along with the WTA button. The WTA
button activates the nearby red LED as well as the software
selected Intercom Channel TALK LED if not already
active.
3. Stage Announce (SA) – When pressed, the user’s audio is
routed to the stage announce connector on the back of the
base station. The user also loses their sidetone as an
indication that stage announce is activated. The other
wireless beltpacks and wired users do not hear the user’s
audio. The button is non-latching and activates the nearby
red LED.
4. Talk Butto n – Press to enable the audio path to either
Intercom Channel A or B or A+B, from the local headset
microphone. The associated TALK LED, #6, will turn red
when enabled. A quick press and release latches the talk
function, unless latching has been disabled. Holding the
button for over 1/2 second, will cause the audio path to be
enabled only for as long as the button is held. If the talk
function is latched on, pressing the talk button again will
turn it off.
5. Low Battery/Overmodulation (BAT/OM) Light – Light
will flash once when unit is turned on if the battery is good.
If the light stays on, battery is low, If the light does not
flash, battery is dead. A normal microphone gain setting
will cause the LED to flash at the beginning of most words
at normal speech levels. If the gain is too high, the LED will
be red during the complete word at normal speech levels.
6. Talk Light – Will turn red when enabled by associated
TALK or WTA button.

18 TR-825 Beltpack BTR-800, TR-800, TR-825
1. [MENU] and [SET] buttons – Used to select menus and
set options on the LCD.
2. LCD (Liquid Crystal Display)
3. [UP] and [DOWN] buttons – Used to select beltpack
options on the LCD.
4. Microphone Gain – Adjusts the headset’s microphone
gain. Adjust so that the BAT/OM LED will flash at the
beginning of most words at normal speech levels.
5. Push-to-Talk/Push-to-Transmit Switch –
Push-to-Talk (PT TALK) - The transmitter is always on. No
audio sent unless the talk switch, WTA, or SA button
pressed. Recommended position.

Push-to-Transmit (PT TX) –The transmitter and audio path
are off except when the talk switch, WTA, or SA button is
pressed.
6. Headset Connector – Male XLR connector or female XLR
connector. A dynamic or electret headset microphone is
automatically detected by the beltpack and a bias voltage
supplied, if needed. Four-pin units are monaural. Five pin
units have a software setup which ground or opens pin 3.
Single-sided 5-pin headsets will only receive A or B, depending
on how headphone is wired. These headsets must have the
beltpack set for [Ab SEP]
7. Battery Latch – Press down to enable the battery pack to
be released. While the latch is held down, slide the battery
pack about 1/8-inch back, toward the latch, until it stops.
Then lift out.
8. Receive Antenna – Screw type 1/4-wave replaceable
antenna. The color dot on the screw end of the antenna must
match color dot on antenna receptacle.
9. Transmit Antenna – Screw type 1/4-wave replaceable
antenna. The color dot on the screw end of the antenna must
match color dot on antenna receptacle.
FIGURE 8.
TR-825 Rear Panel/Connector/Antennas
Male Connector
Female Connector
FIGURE 9.
Headset Jack Wiring

BTR-800, TR-800, TR-825 TR-825 Beltpack 19
TR-825 Specifications
RF Frequency Range
US/Canada TX Range
572-608 MHz in 18 MHz TX bands
653-663 MHz for 3 band
470-488 MHz for 88 band
TX Range (rest of the world)
572-608, 614-722 MHz in 18 MHz TX bands
RX Range
482-608 MHz in 18 MHz RX bands
Power Requirements
6 AA Cells Alkaline (NiMH optional)
Current Draw
190 mA (Push-to-Talk, A and B Talk On)
Temperature Range
-4° F to 130° F (-20° C to 55° C)
Dimensions
3.75” W x 5.35” H x 2.02” D 
(9.5 cm x 13.5 cm x 5.1 cm)
Weight
21 oz (595 g) with alkaline batteries
TX Antenna
1/4 Wave (supplied), Screw type, Replaceable
RX Antenna
1/4 Wave (supplied), Screw type, Replaceable
FCC ID
B5DM517
B5DM537
Frequency Response
300 Hz - 8 kHz
Microphone input sensitivity
7 mV
Local Headset Output
40 mW output into 600Ω (1% distortion)
Transmitter
Type
Synthesized
Transmit Power
50 mW Max (auto-power reduction)
20 mW Max in US 3 Band, 653-663 MHz, (auto-
power reduction)
Modulation Type
FM
Deviation
40 kHz
RF Frequency Stability
0.005%
Modulation Limiter
Peak-Responding Compressor
Radiated Harmonics & Spurious
Exceeds FCC specifications
Receiver
Type
Two, Dual Conversion Superheterodyne,
Synthesized, FM
RF Sensitivity
<0.8 μV for 12 dB SINAD
Squelch Threshold
20 dB SINAD (about 1.0 μV)
IF Selectivity
3 dB at 230 kHz
Image Rejection
70 dB or better
Squelch Quieting
90 dB
RF Frequency Stability
0.005%
Distortion
<1% at full deviation

20 TR-825 Beltpack BTR-800, TR-800, TR-825

CHAPTER 5
Initial Equipment Setup
Unpacking
Unpacking your RTS System. Below are the items that should
come with your base station and each beltpack.
Contact the shipper or your dealer immediately if anything is
damaged or missing. Fill out the registration card and return it to
Bosch to register the unit.
Quantity Description
BTR-800 1 BTR-800 Base Station
1 Power Cord
2 Antennas (one Transmit and one Receive)
1 Warranty and Website Information Sheet
1 Screwdriver
1 2 terminal plug (for SA Relay)
1 Warning Card
4 Rubber Feet
1 Packing Checklist
1 Simplified Declaration of Conformity
Quantity Description
TR-800, TR-825 1 TR-8XX with Antennas
1 Battery pack
1 Instruction Sheet
1 Screwdriver
1 Warranty and Website Information Sheet
1 Packing Checklist
1 Simplified Declaration of Conformity for Non-US/Canada Units

22 Initial Equipment Setup BTR-800, TR-800, TR-825
Antenna Connection
The base station is supplied with the two antennas. One 1/2-
wave antenna for Transmit and one 1/2-wave for Receive. The
antennas have TNC male connectors.
The frequency range of the antennas should match the receiver
and transmitter of the base station. Match the color code on the
antenna with the color code on the base station.
Attach the transmit 1/2-wave antenna to the antenna input
receptacle labeled Transmit on the right side of the rear panel.
The antenna should be vertically aligned.
Attach the receive 1/2-wave antenna input receptacle labeled
Receive on the left side of the rear panel. The antenna should be
vertically aligned.
Antenna Polarization
The RTS Wireless Intercom System is Vertically Polarized. This
means both the transmitting and receiving antennas should
operate in the vertical position.
Distance between Antennas
The distance between the base station’s receive and transmit
antennas is not adjustable when the antennas are connected
directly on the back of the unit.
The antennas can be remoted for better signal path. An RTS
coax assembly with remote antennas may be required. See
“Accessories and Replacement Parts” on page 83 for ordering
information.
NOTE: If your base station is to be located in a shielded
rack mount enclosure or other poor RF location,
you must remove the 1/2-wave antennas with coax
assemblies. See “Accessories and Replacement
Parts” on page 83 for remote mounting hardware.
Antenna Placement
Proper antenna placement probably has the most effect on your
RTS Wireless Intercom System’s overall performance. The
following suggestions will result in optimum performance.
Proper placement of the beltpack can be critical. The antennas
should be in the open. Bending the antennas up and placing the
beltpack in a pocket, etc., will reduce system distance.
It is suggested that the unit be worn on the belt with both
antenna’s vertical for best operating range and performance.
FIGURE 10.
Attaching Transmit 1/2-Wave Antenna
FIGURE 11.
Attaching Receive 1/2-Wave Antenna
ANTENNAS SHOULD BE VERTICAL
FIGURE 12.
Vertically Polarized Antennas
FIGURE 13.
Proper Dressing of the Antennas