Bosch Security Systems B119 Belt Pack Transmitter User Manual Preliminary Users Manual
Bosch Security Systems, Inc. Belt Pack Transmitter Preliminary Users Manual
User Manual
Preliminary Users Manual
Electro-Voice Model REV-WT Wireless Microphone Transmitter
The Electro-Voice (Ev) REV-WT is a Professional Grade Wireless Beltpack
Transmitter operating in the UHF frequency range. The REV-WT combines
frequency agility and ease of use like no other. The transmitter operates
within a 24 MHz wide segment in 25 KHz steps.
The high quality audio circuitry and advanced Radio Frequency (RF) signal
processing offer broadcast quality signal-to-noise ratio and audio clarity.
The RF range of the REV-WT communicating to a receiver may be up to
150 meters (492 ft).
System features include:
• Durable Painted Metal Case.
• TA-4F Audio Connector.
• Permanent Flash Memory for frequency/setting storage.
• On-Loc prevents accidental power off (when set).
• LCD Display for ease of viewing.
• Flexible quarter wave screw-on Antenna.
Quick set-up:
1. With the Power Switch on the transmitter OFF, install fresh batteries into
the transmitter.
2. To prevent feedback or unintentional noise, mute the audio
mixer/amplifier or other device during set-up adjustments.
Place the transmitter Power Switch to the ON position.
3. The Battery light near the Off/On switch will flash once and then go off.
If the light does not flash, a bad battery is the most likely cause.
The display will also come on briefly displaying the current frequency
group and channel and the battery level. Note: Anytime Power is
removed and turned back on, the GP/CH/Bat screen will be displayed.
REV-WT Users Manual Page 2
Quick set cont’d.
4. If the Group and Channel match the desired receiver group and channel,
proceed to Step 9. If not, proceed to Step 5.
5. To select a different GP/CH, press SET one time. The Group will start
flashing. Use the up and down arrows to change the group number. Press
the SET button to save the Group.
After setting the Group, The Channel number will start flashing. Use the
up/down arrows to change the Channel number. Press SET and the
channel is now saved.
6. There are 18 preferred Groups and up to 16 Channels available in
stored memory. If desired, you can create new groups/ channels but
you must change to a new frequency to store in that group/channel.
In order to select a new frequency, you must have a “users” group
/channel selected. Press the SET button. The Group should be flashing.
Press the Up arrow until group 19u is found (any u group can
be used) Press SET. The Channel should now be flashing. Select a
channel with the up/down arrow. Press SET.
You are now ready to select a frequency to store in the users group
above. Press the Menu button one time. A “dashed” line may appear on
the display (if this is the first user program) or a previously stored
frequency will be displayed. Press the Set button one time. The line
or frequency should start flashing.
Press the Set button one time then use the Up/Down arrow buttons to
select the desired frequency. Press Set when complete. The selected
frequency should be displayed and not be flashing.
REV-WT Users Manual Page 3
Quick set cont’d.
7. Press the Menu button one time to advance to the next screen function.
pressing the button once each time allows the user to scroll through the
functions or change a function.
The next screen is the audio (microphone/instrument) level (attenuator)
screen. Setting the levels correctly depends on the microphone or
instrument used and the person using the microphone. Setting the
attenuator to “0”db is the same as setting a control to maximum gain.
Setting the attenuator to –42 db is the same as setting a control to
minimum gain. Each step of the attenuator equals 3 db.
Setting the attenuator for the maximum Audio Meter reading on the
receiver without peak distortion will produce the best signal to noise
ratio.
8. The next screen is RF Power. The Transmit Power (RF) is shipped set to
“Lo” for use with multiple frequency systems and the best battery life.
“Hi power can be selected for longer distances or to suppress noise or
interference. The nominal power in Hi is 50 milliwatts.
9. The next screen is Voice or Guitar. The transmitter is shipped set to
Voice. To select guitar when in the voice screen, press SET. The
screen will flash, press the Up arrow and the screen will change to
“Gui tAr”. Press SET. The transmitter is now in guitar mode.
To return to Voice (in the “gui tAr”screen) Press SET, the screen flash’s,
press the Down arrow, the screen changes to flashing Voice, Press SET,
flashing stops. The transmitter is now in Voice mode.
10. When power off is required, simply place the power Off-On switch in
the OFF position. The display will then delay slightly to allow the
receiver to shut down quietly.
REV-WT Users Manual
Specifications: Page 4
RF Frequency range……………………614.0 to 698.0 MHz.
RF Channel Step……………………….25 KHz
RF Power………………………………Norm, 5 mW, High, 50 mW.
Modulation…………………………….FM, 40 KHz nominal.
Audio Frequency Response……………80-15000 Hz +/- 2 dB.
Audio attenuator Range………………..42 dB.
Microphones, Electret or Dynamic…… Electret bias provided.
Antenna………………………………..Quarter Wave Flexible.
Battery Life (Alkaline)………………... 8-10 Hours Typical.
Final Collector Voltage (High Power)... 4.7 Volts
Final Collector Current (High Power)… 13 mA
Approval Information:
The Telex/Ev REV-WT Transmitter is Type Accepted under United States
Federal Communications Commission Part 74.
The Telex/Ev REV-WT Transmitter is Certified to Industry Canada
RSS123 rules.
Licensing of Telex/Ev equipment is the users responsibility and
licensability depends upon the user’s classification, user’s application
and frequency selected. Telex/Ev strongly urges the user to contact the
appropriate telecommunications authority for any desired clarification.
CAUTION: Any changes or modifications made to the above equipment
could void the user’s authority to operate the equipment.