Lectrosonics T4 - Manual (Page 14)

IFBT4
LECTROSONICS, INC. 14
Specifications
FCC Notices:
Emission designator: 180KF3E
The IFBT4 transmitter is FCC type accepted under Part 74: 470 - 608MHz, 614 - 806MHz and
944.1 – 951.9MHz.
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. A separation distance of
at least 20cm (8 inches) must be maintained to comply with the FCC Radio Frequency Maximum
Permissible Exposure (MPE) requirements.
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.
This device has been designed to operate with the antennas
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 model A500RA whip antenna
• Lectrosonics model SNA500 dipole antenna
Power listed is conducted. The antenna(s) used for this
transmitter are to be fixed-mounted on indoor permanent
structures providing a separation distance of at least 20 cm
from all persons during normal operation. The maximum
radiated output power at each antenna must satisfy the MPE
Categorical Exclusion Requirements of §2.1091.
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 communication.
Operating Frequencies (MHz):
Block 470 470.100 - 495.600
Block 19 486.400 - 511.900
Block 20 512.000 - 537.500
Block 21 537.600 - 563.100
Block 22 563.200 - 588.700
Block 23 588.800 - 607.900 and 614.100 - 614.300
Block 24 614.400 - 639.900
Block 25 640.000 - 665.500
Block 26 665.600 - 691.100
Block 27 691.200 - 716.700 (export only)
Block 28 716.800 - 742.300 (export only)
Block 29 742.400 - 767.900 (export only)
Block 944 944.100 - 951.900
Frequencies (Channels per block): 256
Channel Spacing: 100 kHz (0.1 MHz)
Spurious & Harmonic Suppression: 37 dBc above 1 GHz
Frequency Stability: ±.001% (10 ppm) @ 25° C
Temperature Stability: ±.001% (10 ppm) from -30° C to +50° C
Channel Selection: Momentary pushbutton switches, TUNE Up and Down
Compatibility Modes (6) IFB, Digital Hybrid Wireless ™ (400 Series), 100
Series, 200 Series, Mode 3, Mode 6
Pilot Tone: 29.997 kHz IFB Mode, 32.765kHz 200 Mode, 400
Mode step selected, 32.768kHz Mode 6
Modulation: FM, ±20 kHz deviation IFB & 100 Mode, ±75kHz 200
& 400 Mode, ±50kHz Mode 3 and Mode 6
Audio Frequency Response: • 100 Hz to 8 kHz, ±1 dB, IFB MODE system
response (see Rolloff)
• 30Hz to 20kHz ±1dB, 200 & 400 MODE system
response (see Rolloff)
Low frequency audio rolloff: Menu selectable for 3 dB down at 35 Hz or 50 Hz
Signal to Noise Ratio: 90 dB typical (“A” weighted)
RF Power Output: 250 mW (nominal)
Output Impedance: 50 Ohms
Audio Input Levels: 0 dBu for Line, RTS1 & RTS2
-10 dBu for Clear Com
-42 dBu for mic dry inputs, +/-50 VDC max.
Audio Input Config: Balanced and Unbalanced, rear panel selectable for
Line, Mic. RTS 1, RTS 2, and Clear Com
Audio Input Impedance: Greater than 2 K balanced, greater than 1 K
unbalanced at any gain setting
Gain Control Range: -18 dB to +24 dB (0 dB nominal center), software
selectable
Audio Input Jack: Standard XLR female connector
Input Power: 12 to 14 VDC typical, 200 mA max.; Max. input range
6 to 18 VDC
Power Input Jack: Coax type, locking LZR RL26AE
Indicators: Backlit Liquid Crystal Display. Displays modulation
meter, frequencies, modes, audio rolloff, audio level,
and tuning groups.
Front panel controls: • MENU momentary pushbutton switc
• Power OFF-TUNE-XMIT, 3 position slide switch
• Select Up momentary pushbutton switch
• Select Down momentary pushbutton switch
Rear panel controls: Input Mode Select, 4 section DIP switch
Weight: 9 oz.
Size: 5.25” x 3.25” x 1.25” (including connectors)
Specifications subject to change without notice.