Lectrosonics Inc UH400E Manuel D’Utilisation
UH400A/UH400TM
LECTROSONICS, INC.
14
Operating frequencies:
470.100 to 607.900 MHz; 614.100 to 767.900 MHz
Frequency selection:
256 frequencies in 100 kHz steps
RF Power output:
100 mW
Pilot tone:
25 to 32 kHz; 5 kHz deviation (in 400 Series (hybrid) mode)
Frequency stability:
± 0.002%
Deviation:
± 75 kHz max. (in 400 Series mode)
Spurious radiation:
60 dB below carrier
Equivalent input noise:
–118 dBV, A-weighted
Input level:
Nominal 2 mV to 300 mV, before limiting; Greater than 1.0 V maximum, with limiting.
Input impedance:
1 k Ohm
Phantom power:
Selectable; 5, 15, 48 VD (see details in Controls and Functions section)
Input limiter:
Soft limiter, >30 dB range
Gain control range:
43 dB; semi-log rotary control
Modulation indicators:
Dual bi-color LEDs indicate modulation of –20, -10, 0 and +10 dB referenced to full modulation.
Low frequency roll-off:
–12 dB/octave; 70 Hz (35 Hz for UH400TM)
Controls:
Control panel knob adjusts audio gain.
Rotary switches on bottom panel adjust transmitter frequency.
Audio Frequency Response:
90 Hz to 20 kHz, +/-1 dB (40 Hz to 20 kHz, +/- 1 db for UH400TM)
Note: The audio is deliberately rolled off at 70Hz using a 12 dB/octave filter on the UH400A. This filter cannot be disabled.
Signal to Noise Ratio (dB):
Note: The dual envelope “soft” limiter provides
Note: The dual envelope “soft” limiter provides
exceptionally good handling of transients using
variable attack and release time constants.
Once activated, the limiter compresses 30+ dB
of transmitter input range into 4.5 dB of receiver
output range, thus reducing the measured figure f
or SNR without limiting by 4.5 dB
Total Harmonic Distortion:
0.2% typical (400 Series mode)
Antenna:
Built-in; housing and input coupler form a dipole configuration
Battery Type:
9V Li Polymer rechargeable, Lithium
Battery Life:
4.5 Hours with alkaline or Li Polymer, 12 hrs with lithium
(Battery life will vary with battery brand, phantom power voltage setting and mic current drain.)
Weight:
7.873 oz. 223.2 grams with lithium battery, no mic
Overall Dimensions:
1.5 x 1.5 x 4.2 inches (Not including microphone.)
Emission Designator:
190KF3E
Specifications subject to change without notice.
The FCC requires that the following statement be included in this manual:
This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device
This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device
should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any other
antenna or transmitter.
Specifications and Features
SmartNR
No Limiting
w/Limiting
OFF
103.5
108.5
NORMAL
107.0
111.5
FULL
108.5
113.0