Lectrosonics Inc M4T 사용자 설명서
Digital IEM System
Rio Rancho, NM
3
Excessive sound levels can cause permanent hearing
damage.
damage.
1. Always adjust the volume to the lowest level be-
fore listening to unknown transmissions.
2. Use the lowest reasonable level consistent with
hearing safety.
3. Don’t use high sound levels in the earphone to
overcome high ambient sound levels. That is ab-
solutely foolish! Demand and use high isolation
earphones.
solutely foolish! Demand and use high isolation
earphones.
4. Don’t expose your ears to sound levels that cause
them to ring. If your ears do ring after exposure,
think of it as a warning bell telling you not to do
that again.
think of it as a warning bell telling you not to do
that again.
OSHA (Occupational Safety Health Administration)
guidelines on the maximum allowable time exposure
to sound pressure levels that will cause hearing dam-
age are as follows:
guidelines on the maximum allowable time exposure
to sound pressure levels that will cause hearing dam-
age are as follows:
8 hours at
90
dB
SPL
4 hours at
95
dB
SPL
2 hours at
100 db
SPL
1 hour
at
105 dB
SPL
30 mins at
110 dB
SPL
15 mins at
115 dB
SPL
NEVER expose your ears to 120 dB SPL or higher!
Damage will occur.
Damage will occur.
Safety Notes
FCC Notice
NOTE: This equipment has been tested and found to
comply with the limits for a Class B digital device, pur-
suant to Part 15 of the FCC Rules. These limits are de-
signed to provide reasonable protection against harmful
interference in a residential installation. The 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 encour-
aged to try to correct the interference by one or more of
the following measures:
comply with the limits for a Class B digital device, pur-
suant to Part 15 of the FCC Rules. These limits are de-
signed to provide reasonable protection against harmful
interference in a residential installation. The 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 encour-
aged 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
• Increase the separation between the equipment
and receiver
• Connect the equipment into an outlet on a circuit
different from that which the receiver is connected
• Consult the dealer or an experienced radio/TV tech
-
nician for help
Changes or modifications to this equipment not ex-
pressly approved by Lectrosonics, Inc. could void the
user’s authority to operate it.
pressly approved by Lectrosonics, Inc. could void the
user’s authority to operate it.
Industry Canada Notices
Operation of this device is subject to the following two
conditions: (1) this device may not cause interference,
and (2) this device must accept interference, including
interference that may cause undesired operation of the
device.
conditions: (1) this device may not cause interference,
and (2) this device must accept interference, including
interference that may cause undesired operation of the
device.
This device has been designed to operate with the
antenna listed below, and having a maximum gain of 6
dB. Antennas not included in this list or having a gain
greater than 6 dB are strictly prohibited for use with this
device. The required antenna impedance is 50 ohms.
antenna listed below, and having a maximum gain of 6
dB. Antennas not included in this list or having a gain
greater than 6 dB are strictly prohibited for use with this
device. The required antenna impedance is 50 ohms.
• Lectrosonics M4T Antenna; P/N 21422
• Linx Technologies model ANT-916-CW-HWR-RPS
• Linx Technologies model ANT-916-CW-HWR-RPS
To reduce potential radio interference to other users,
the antenna type and its gain should be so chosen that
the equivalent isotropically radiated power (e.i.r.p.) is
not more than that permitted for successful communica-
tion.
the antenna type and its gain should be so chosen that
the equivalent isotropically radiated power (e.i.r.p.) is
not more than that permitted for successful communica-
tion.