Encrypted Digital Wireless System
Protecting the Encryption Key
The encryption key is never displayed, and once a key
transfer session is complete, the existing key can never
again be transferred out the receiver’s security port.
However, the key is stored inside the transmitter and
the receiver, so you should treat the equipment as you
would a key, storing it in a safe place for as long as the
key is important.
Keep in mind that old keys could be used to decrypt old
transmissions, if someone had the means and desire to
make such recordings. Also, overwriting an old key with
a new one does not necessarily place the old key
beyond the reach of someone with unlimited resources
if they can obtain your equipment. Amazing feats of
data recovery from overwritten EEPROM chips have
been demonstrated.
For maximum security, it is recommended that you set a
new key often, ideally before and after each use of the
system, and that you always store the equipment in a
physically secure location.
Note that in Security Level 3, the equipment itself
enforces the most important part of this policy, namely
that no key shall ever be used more than once.
UT700 Vari-Mic™ Controls
Caution: Due to the high RF levels surrounding
the transmitter, the sound of the Varimic
capsule may be temporarily affected if the
metal windscreen is not in place. Always make
the final decision about sound balance and
quality with the windscreen in place.
The VariMic™ head includes adjustments for the
microphone element’s Bass, Midrange and Treble
response. There is also an attenuation adjustment to
provide up to 15 dB of additional headroom if needed.
These controls can be accessed by removing the
windscreen. To remove the windscreen, grasp the body
of the transmitter in one hand and the windscreen in the
other hand. Unscrew the windscreen counterclockwise
and then carefully slide the windscreen past the mic
element.
Bass / Mid / Treble (LO / MID / HI)
The bass and treble controls will boost/cut by up to
approximately 8 dB while the Mid control will boost/cut
up to about 6 dB. These controls operate as standard
tone controls. Counterclockwise will reduce the re
sponse in that band and clockwise will provide a true
boost.
Bass (LO)
Mid (MID)
Treble (HI)
• Set flat (as shown in illustration), the mic capsule
has a very wide dynamic range and sounds a lot
like a large competitor’s top line condenser mic.
• Bass cut gives a dry but highly intelligible sound.
Crisp.
• Bass boost “fattens” the sound but is very listen
able. Does not get midbass boomy.
• Midrange cut sounds very smooth, very sweet.
Almost like a “crooner” quality.
• Midrange boost is likely to be useful in a system
that is midrange shy.
• Treble cut has a “mellow” sound. The capsule has a
solid high end so a little cut does not ruin the
response.
• Treble boost might be fine on some sound systems.
The sound doesn’t get harsh (showing that the
response was smooth) but sibilants are a little too
much. Should be used in moderation.
UT200 Bass/Midrange/Treble Boost/Cut
+10
+5
0dB
-5
-10
10Hz
100Hz
1KHz
10KHz
Rio Rancho, NM
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Summary of Contents for UDR700
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