Bosch Security Systems H221 HANDHELD MICROPHONE TRANSMITTER User Manual REV HUsers051706

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Document ID	706185
Application ID	mfxOGyEnVsUtJxh1dxGglw==
Document Description	USERS MANUAL
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	1.99kB (24869 bits)
Date Submitted	2006-09-19 00:00:00
Date Available	2006-11-03 00:00:00
Creation Date	2006-05-23 09:45:44
Producing Software	Acrobat Distiller 6.0 (Windows)
Document Lastmod	2006-05-23 09:45:44
Document Title	Microsoft Word - REV-HUsers051706.doc
Document Creator	PScript5.dll Version 5.2.2
Document Author:	Yostt

Preliminary Users Manual
Electro-Voice Model REV-H Handheld Wireless Microphone
Transmitter
The Electro-Voice (Ev) REV-H is a Professional Grade Wireless Handheld
Transmitter operating in the UHF frequency range. The REV-H 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 and audio clarity.
System features include:
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Durable Painted Metal Handle.
Screw-on microphone elements for changeability.
Permanent Flash Memory for frequency/setting storage.
On-Loc prevents accidental power off (when set).
LCD Display for ease of viewing.
Internal top loaded monopole 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 operating screen (display) light will come on momentarily.
The display will 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-H Users Manual
Page 2
Quick set cont’d.
4. The screen will stop at the GP (Group) and CH (Channel) screen. 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.
There are 10 Groups and up to 16 Channels (preferred groups/channels)
stored in 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 a group ending with u 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 and hold the set and down arrows at the same time for 3
seconds and release to go to the next screen function.
8. The next screen displays the operating frequency of the group/channel.
If there is no frequency currently stored in the selected users
group/channel, a dashed line will be shown. Press SET. The dashed line
or frequency will start flashing. Press the up arrow one step at a time to
find the desired frequency or hold down the up arrow to scroll through
the frequencies quickly. The frequencies can be scrolled either way by
the up/down buttons. When the desired frequency is showing, press SET.
REV-H Users Manual
Page 3
Quick set cont’d.
9. Press and hold the set and down arrows at the same time for 3
seconds and release to go to the next screen function.
The next screen is the audio (microphone) level (attenuator)
screen. Setting the level correctly depends on the microphone
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.
10. 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.
11. 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-H Specifications:
Page 4
RF Frequency range……………………614.0 to 746.0 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………………………………..Top Loaded Monopole
Battery Life (Alkaline)………………... 8-10 Hours Typical.
Approval Information:
The Telex/Ev REV-H Transmitter is Type Accepted under United States
Federal Communications Commission Part 74.
The Telex/Ev REV-HP 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.

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