Lectrosonics Frequency-Agile IFB Transmitter (Frequency Block 20)
Frequency-Agile IFB Transmitter (Frequency Block 20)
Product Highlights: - Dual Hybrid Wireless Technology
- XLR Input
- Backlit LCD
- Aluminum Construction
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Lectrosonics Frequency-Agile IFB Transmitter (Frequency Block 20)
Lectrosonics IFBT4-20 - Frequency-Agile IFB Transmitter (Frequency Block 20)
The IFBT4 from Lectrosonics is a high-quality IFB transmitter designed for applications where long operating range and great audio quality are needed, such as broadcasting, film, and theater. The sleek, simple box can be used as a stand-alone unit, or patched into other widely-used intercom systems. The single XLR input connector is accompanied by four DIP-switches for selecting a mic, line, Clear Com, RTS1, or RTS2 audio source.
NOTE: In most cases "stock" manufacturer images and descriptions are used in this catalog. Actual Rental items may vary slightly.
| Operating Frequency |
524.5 to 536.3MHz |
| Frequencies |
256 Channels Per Block |
| Channel Spacing |
100kHz |
| Spurious and Harmonic Suppression |
37dBc Above 1GHz |
| Frequency Stability |
±0.001% (10 ppm) @ 25°C |
| Temperature Stability |
±0.001% (10 ppm) @ -30 to +50°C |
| Compatibility Modes |
IFB, Digital Hybrid Wireless (400 Series), 100 Series, 200 Series, Mode 3, Mode 6 |
| Pilot Tone |
29.997kHz IFB Mode, 32.765kHz 200 Mode, 400 Mode Step Selected, 32.768kHz Mode 6 |
| Modulation |
FM, ±20kHz Deviation IFB & 100 Mode, ±75kHz 200 & 400 Mode, ±50kHz Mode 3 and Mode 6 |
| Audio Frequency Response |
100Hz - 8kHz, ±1dB IFB Mode
30Hz - 20kHz, ±1dB 200 & 400 Mode |
| Low Frequency Roll-Off |
3dB Down @ 35 or 50Hz, Menu Selectable |
| Signal to Noise Ratio |
90dB Typical, A-Weighted |
| RF Power Output |
250mW, Nominal |
| Output Impedance |
50 Ohms |
| Audio Input Level |
Line, RTS1, RTS2: 0dBu
Clear Com: -10dBu
Mic Dry Inputs: -42dBu |
| Audio Input Impedance |
Balanced: Greater than 2 kOhms
Unbalanced: Greater than 1 kOhm |
| Gain |
-18 to +24dB, Software Selectable |
| Connectors |
1 x XLR Input Connector
1 x BNC Antenna Connector
1 x DC Power Input |
| Controls and Indicators |
4 x Mode Switches (For Selecting Type of Input Source)
1 x Menu Button
2 x Select Buttons (Up/Down)
1 x Off/Tune/Xmit Switch
1 x Backlit LCD Display |
| Power |
12-14VDC, Typical, 200mA Max |
| Dimensions (LxWxH) |
5.25 x 3.25 x 1.25" (133 x 83 x 32mm) |
| Weight |
9 oz (255g) |
