Ritron RIT32-433-RCVR 433.92MHz KEYFOB RECEIVER User Manual RQT 433 RCVR UserMan 1
Ritron Inc 433.92MHz KEYFOB RECEIVER RQT 433 RCVR UserMan 1
  
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Users Manual

RQT-433-RCVR_UserMan_2.pdf 
TYPE OF EXHIBIT:  INSTALLATION AND OPERATING INSTRUCTION MANUAL 
FCC PART: 2.1033 (b)(3) 
MANUFACTURER: RITRON, INC. 
  505 West Carmel Drive 
  Carmel, IN 46032 
MODELS: RQT-433-RCVR 
TYPE OF UNIT:  433.92 MHz Keyfob Receiver 
FCC ID: AIERIT32-433-RCVR 
DATE: January 24, 2012 
Included in this exhibit is a draft copy of the User Manual for RITRON Model RQT-433-RCVR 433 MHz 
Keyfob Receiver.  
This manual provides the end user with installation and operating instructions. 
Signed:   
   Michael A. Pickard  -  Project Engineer 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 1 
RQT-433-RCVR
433.92 MHz Keyfob Receiver 
Owner’s Manual 
Call 800-USA-1-USA for the right Wireless 
Solutions to your communication needs. 
Ritron, Inc. 
P.O. Box 1998 • Carmel, Indiana 46082-1998 • USA 
Phone: 317-846-1201; 800-USA-1-USA (800-872-1872) 
Fax: 317-846-4978 
Email: ritron@ritron.com 
Ritron Publication 145000082   Rev. A  01-12 
© 2011 Ritron, Inc. All rights reserved. Ritron, Patriot, 
Jobcom, OutPost, GateGuard, Quiet Call and Quick Assist 
are registered trademarks of Ritron, Inc. Quick Talk, Liberty 
and RadioNexus are trademarks of Ritron, Inc. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 2 
Table of Content 
RQT Models and Keyfobs............................................. 2 
RQT-433-RCVR FCC Part 15 Statement ..................... 2 
General Information ...................................................... 3 
RQT Radio Operation ................................................... 3 
Effect on RQT Radio Battery Life.................................. 3 
RQT-KEYFOB Operation.............................................. 4 
RQT-KEYFOB Battery Replacement............................ 4 
RQT-KEYFOB FCC Part 15 Instructions ...................... 5 
RQT Radio Programming.............................................. 6 
Programmable RQT Radio Attributes ........................... 7 
Changing the Address................................................... 8 
Specifications ................................................................ 9 
RQT Models and Keyfobs 
Ritron RQT Models with the RQT-433-RCVR installed: 
RQT-151-RCVR RQT-151M-RCVR RQT-451-RCVR 
RQT-152-RCVR RQT-152M-RCVR RQT-452-RCVR 
Ritron Keyfob Transmitters: 
RQT-KEYFOB-1 RQT-KEYFOB-2 RQT-KEYFOB-3 
RQT-KEYFOB-4 RQT-KEYFOB-5 RQT-KEYFOB-6 
RQT-KEYFOB-7 RQT-KEYFOB-8 
RQT-433-RCVR FCC Part 15 Statement 
This device complies with part 15 of the FCC Rules.  
Operation is subject to the following two conditions:  
(1) This device may not cause harmful interference, and  
(2)  This device must accept any interference received, 
including interference that may cause undesired 
operation.  
This equipment has been tested and found to comply 
with the limits for a Class B digital device, pursuant to 
Part 15 of the FCC Rules. These limits are designed to 
provide reasonable protection against harmful 
interference in a residential installation. This equipment 
generates uses and can radiate radio frequency energy 
and, if not installed and used in accordance with the 
instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that 
interference will not occur in a particular installation. You 
can test that if this equipment does cause harmful 
interference to radio or television reception by turning 
the equipment off and on. 
Caution: Changes or modifications not expressly 
approved by the party responsible for compliance could 
void the user's authority to operate the equipment. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 3 
General Information 
The RQT-433-RCVR is a 433.92 MHz keyfob receiver 
designed for use with the Ritron RQT Series transmitter.  
When installed, the RQT-433-RCVR allows the user to 
activate RQT pre-recorded messages by pressing a 
small keyfob transmitter. Ritron model keyfobs are pre-
set to activate 1 of 8 RQT messages.  Simply record 
your desired voice message into the RQT Series 
transmitter using the RQT PC Programmer and you are 
ready to go. 
RQT Radio Operation 
For RQT models with an RQT-433-RCVR installed, any 
of the 4 RQT inputs can be programmed for “KEYFOB” 
operation. This will allow that input to operate on 2 pre-
assigned Ritron keyfobs per the following chart: 
Input  Models 
Input 1  RQT-KEYFOB-1  RQT-KEYFOB-2 
Input 2  RQT-KEYFOB-3  RQT-KEYFOB-4 
Input 3  RQT-KEYFOB-5  RQT-KEYFOB-6 
Input 4  RQT-KEYFOB-7  RQT-KEYFOB-8 
Once an RQT input is set for “KEYFOB” operation it will 
no longer respond to switch closures or analog signals, 
the two Input messages can only be activated by the 
specific received keyfob codes assigned to that input.  
Refer to the RQT Programming section of this manual 
for details of KEYFOB input programming and the 
associated programming options available. 
Once the radio has been programmed and installed, 
Ritron model keyfobs can be used to activate the RQT 
transmitter and broadcast a unique, user recorded voice 
message associated with the specific keyfob. 
EXAMPLE: 
  RQT Input 1 is set for “KEYFOB” operation with 
“Assistance needed in classroom 111” recorded for 
RQT-KEYFOB-1 and “Assistance needed in classroom 
112” recorded for RQT-KEYFOB-2.  Ritron keyfobs 
RQT-KEYFOB-1 and RQT-KEYFOB-2 can now 
activate these two recorded messages respectively. 
Effect on RQT Radio Battery Life 
 In order for the RQT-433-RCVR receiver to reliably 
decode signals from the keyfob transmitters, RQT radio 
models with the RQT-433-RCVR keyfob receiver 
installed have increased current requirements and do 
not operate in the low current “standby” mode.  
Therefore, battery life is severely reduced and it is 
recommended that the RQT be externally powered.  
Where battery life of an RQT radio would normally be 
about 1 year, it drops to about 2 weeks with the RQT-
433-RCVR installed. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 4 
RQT-KEYFOB Operation 
When operating a 
keyfob transmitter the 
best performance is 
achieved with the 
keyfob held between 
the thumb and 
forefinger, with the 
top of the keyfob 
uncovered and 
vertical (as shown) 
It is important to 
understand that only 
one keyfob 
transmitter at a time can be activated within a reception 
area. While the transmitted signal consists of encoded 
digital data, only one carrier of any particular frequency 
can occupy airspace without contention at any given 
time. If two transmitters are activated in the same area at 
the same time, then the signals will interfere with each 
other and the decoder will not see a valid transmission, 
so it will not take any action. 
The effective range of a Ritron keyfob is similar to that of 
a garage door opener.  Range will be affected by 
obstructions, if the keyfob is in your pocket, or how the 
keyfob is held.   
The location of the RQT transmitter can help extend the 
range of the RQT-433-RCVR.    
RQT-KEYFOB Battery Replacement 
The keyfob 
utilizes a 
standard 
CR2032 lithium 
button cell. In 
normal use, it 
can provide up to 
1 year of 
operation.  
Access for 
replacement is 
accomplished by 
gently prying 
apart the two 
halves of the 
keyfob at the 
seam (fingernails 
will do for this). 
Once the unit is open, remove the battery by sliding it 
out from beneath the retainer. 
There may be the risk of explosion if the battery is 
replaced by the wrong type. Replace it with the same 
type of battery while observing the polarity shown in the 
adjacent figure. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 5 
RQT-KEYFOB FCC Part 15 Instructions 
This device complies with Part 15 of the FCC Rules. 
Operation of this device is subject to the following two 
conditions: 
(1)  This device may not cause harmful interference, and 
(2)  This device must accept any interference received, 
including interference that may cause undesired 
operation. 
This equipment has been tested and found to comply 
with the limits for a Class B digital device, pursuant to 
Part 15 of the FCC Rules. These limits are designed to 
provide reasonable protection against harmful 
interference in a residential installation. This equipment 
generates, uses and can radiate radio frequency energy 
and, if not installed and used in accordance with the 
instructions, may cause harmful interference to radio 
communications. 
However, there is no guarantee that interference will not 
occur in a particular installation. If this equipment does 
cause harmful interference to radio or television 
reception, which can be determined by turning the 
equipment off and on, the user is encouraged to try to 
correct the interference by one or more of the following 
measures: 
•  Reorient or relocate the receiving antenna. 
•  Increase the separation between the equipment and 
receiver. 
•  Connect the equipment into an outlet on a circuit 
different from that to which the receiver is 
connected. 
•  Consult the dealer or an experienced radio/TV 
technician for help. 
This equipment has been certified to comply with the 
limits for a Class B computing device, pursuant to FCC 
Rules. In order to maintain compliance with 
FCC regulations, shielded cables must be used with this 
equipment. Operation with non-approved equipment or 
unshielded cables is likely to result in interference to 
radio and TV reception. The user is cautioned that 
changes and modifications made to the equipment 
without the approval of manufacturer could void the 
user’s authority to operate this equipment. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 6 
RQT Radio Programming 
Programming an RQT transmitter (equipped with the 
RQT-433-RCVR) for keyfob operation requires Ritron 
PC Programmer RQT-PCPS or RQT-BASIC-PCPS 
revision 1.1.0 or higher.  A programmer update to this 
revision is available at www.ritron.com. 
1.  Connect the RQT radio your computer via the USB 
port and using the Ritron PC Programmer, read out 
the radio programming.  If the model indicated is not 
on the following list, your radio is not equipped with 
the RQT-433-RCVR keyfob receiver and cannot be 
programmed for keyfob operation. 
Ritron Models with the RQT-433-RCVR installed: 
RQT-151-RCVR RQT-151M-RCVR 
RQT-152-RCVR RQT-152M-RCVR 
RQT-451-RCVR 
RQT-452-RCVR 
2.  Select the input you would like to program for 
Keyfob operation.  The input you select will depend 
on the specific Ritron keyfobs you use.  Check to 
see which model keyfob you have and program the 
input per the following list. 
Input  Models 
Input 1  RQT-KEYFOB-1  RQT-KEYFOB-2 
Input 2  RQT-KEYFOB-3  RQT-KEYFOB-4 
Input 3  RQT-KEYFOB-5  RQT-KEYFOB-6 
Input 4  RQT-KEYFOB-7  RQT-KEYFOB-8 
3.  From the left column of Input programming screen, 
set the Input Type to Keyfob. 
4.  Press the Record button and record a unique 
message for the Ritron keyfob indicated.  Repeat the 
process if a second keyfob is to be used. 
5.  Program the various attributes available on the Input 
programming screen to customize how the RQT 
transmitter will respond to the keyfob. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 7 
Programmable RQT Radio Attributes 
Latch On - When Latch On is selected, the RQT will 
ignore decoded signals from the keyfob until after the 
transmission schedule have been completed.  If not set, 
the RQT will transmit the recorded message every time 
is receives the correct code. 
EXAMPLE:  
  RQT-KEYFOB-1 is scheduled for 2 transmissions, 30 
seconds between transmissions.  When RQT-
KEYFOB-1 has been decoded the recorded message 
will be transmitted twice with 30 seconds in between, 
and any additional signals from RQT-KEYFOB-1 will 
be ignored until 30 seconds after the message is sent 
the 2nd time.  Signals from other keyfobs will still be 
heard, only RQT-KEYFOB-1 will be ignored. 
Input Operation - can be set for 1 of 3 different modes: 
Normal operation considers the RQT-KEYFOB code as 
it is received. 
Dwell operation requires the keyfob code to be present 
continuously for a specified period of time before 
considering. 
Holdoff operation requires that the keyfob code is not 
present for a specified period of time before it is 
considered. 
EXAMPLE:  
  RQT-KEYFOB-2 set for 1 min. holdoff.  When the 
RQT-KEYFOB-2 code is received the recorded 
message will play.  Any additional signals from RQT-
KEYFOB-2 will be ignored until after 1 minute has 
elapsed. 
Number of Message Transmissions  - specifies the 
number of times a recorded message will be transmitted 
after an RQT-KEYFOB code has been received. 
Time between Transmissions specifies the length of 
time between scheduled transmissions.  If it is set to “No 
Message”, the recoded message will not play.  If it is set 
to “On Changes Only”, the recorded message will only 
play when the keyfob code is decoded. 
Play Message on each Transmission specifies the 
number of times the recorded message will be repeated 
on each transmission. 
EXAMPLE:  
  RQT-KEYFOB-1 is scheduled for 2 transmissions, 30 
seconds between transmissions, 2 messages per 
transmission.  When RQT-KEYFOB-1 has been 
decoded the recorded message will be transmitted 
twice, wait 30 seconds, then the message is 
transmitted twice again. 

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 8 
Changing the Address 
For convenience, the RQT-433-RCVR keyfob receiver and all Ritron 
keyfobs come from the factory set to the same address.  This establishes 
a relationship between a single RQT-433-RCVR receiver and multiple 
keyfobs with different codes.  For the vast majority of users the address 
does not need to be changed.  Occasionally the user may want to 
change the address to: 
•  Install two or more RQT-433-RCVR keyfob receivers in the same 
location. 
•  Avoid interference with another transmitter using the same address. 
•  Create a more secure “non-standard” address. 
The RQT-433-RCVR receiver and RQT-KEYFOB transmitters allow the 
selection of one of 1,024 unique addresses.  To avoid contention with 
other units or to create unique relationships, the address can be 
changed. This is accomplished by cutting PCB traces with a sharp 
object, such as an X-Acto knife. 
On the RQT-KEYFOB keyfob the traces are accessed by removing the 
rear cover. If the trace is intact, the address line is connected to ground, 
otherwise it is floating. The RQT-433-RCVR receiver address must 
match exactly in order for the units to communicate. 
EXAMPLE:  
Both the RQT-KEYFOB and the RQT-433-RCVR can be programmed 
with the same unique address by cutting the PCB traces at positions 2 
and 4.  They now have a unique relationship that allows them to 
communicate only with each other. 
RQT-KEYFOB 
RQT-433-RCVR

  For assistance, call RITRON at 800-872-1872, or go to www.ritron.com 9 
Specifications 
RQT-433-RCVR 
Receive Frequency  433.92 MHz 
Center Frequency Accuracy  +/- 50 kHz 
Sensitivity -112dBm typical 
Modulation Type  OOK  
Antenna   Helical wound ¼ wave 
FCC Part  15B 
FCC ID  AIERIT32-433-RCVR 
Input Voltage   6-12 VDC 
Operating Voltage  5.0 VDC 
Input and Output Logic  0-5 VDC 
Interconnection +V in 
 Ground 
  Valid Decode Out 
 Clock In 
  Antenna Disable In 
 Data Out 
Current - Standby  5.9 mA 
Current – w/Antenna Disable  14.1 mA 
Temperature  -30°C to +60°C 
RQT-KEYFOB 
Transmit Frequency  433.92 MHz 
Center Frequency Accuracy  +/- 50 kHz 
Radiated Power  < 200µV/m 
  per FCC Part 15.209 
Modulation Type  OOK  
Antenna Loop trace 
FCC Part  15C, 15.231 
FCC ID  OJM-CMD-KEYX-XXXA 
Input Voltage  3V 
Battery  CR2032 Lithium cell