Lectrosonics : MM400C
Description
The rugged, water resistant Lectrosonics MM400C is based on Digital Hybrid Wireless technology, a revolutionary new design that combines 24-bit digital audio with an analog FM radio link. The result is outstanding audio quality plus the extended operating range of the best analog wireless systems in a package that can withstand the most extreme moisture and temperature environments. The MM400C is conveniently powered by a single AA battery, with internal switching power supplies providing constant voltages to the transmitter circuits from the beginning (1.5 volts) to the end (0.85 volts) of battery life. The 100 mW output with an RF circulator/isolator in the output stage provides excellent operating range while virtually eliminating intermodulation problems common in multichannel environments. The 4.5 hour battery life (lithium) is comparable to standard transmitter models operating on 9 V batteries.
Features
MM400C features include:
- Waterproof Power/Mute switch
- Water resistant, rugged, machined aluminum housing with noncorrosive, superhard finish
- Digital Hybrid Wireless™ system
- 256 synthesized UHF frequencies
- 100 mW output power
- Dual bicolor LEDs indicate four different levels for accurate gain adjustment
- DSP based pilot-tone signal eliminates squelch problems
- Backward compatible to earlier technologies
Specifications
| Type of Transmitter | Body-Pack Synthesized Tuned UHF |
| # Of Channels | 256 frequencies in 100kHz steps per 26MHz wide block |
| RF Output Power | 100mW (nominal) |
| Type of Input Connector | Locking 2.5mm Mini Connection |
| Type of Microphone | M152/WP Lavalier Mic with 2.5mm Micro Plug (included) |
| Polar Pattern | Omnidirectional |
| Battery Type/Approx. Life | 1.5V AA 2 hours (alkaline) 5 hours (lithium) 3.5 hours (NiMH) |
| Mute Switch | Yes, removable waterproof reed switch provides On/Off/Mute function |
| Level Control | Audio level gain control dial 43dB; semi-log rotary control |
| Antenna Type | Fixed 50 ohm flexible antenna |
| Display | Gain adjust knob Frequency adjust rotary dials x2 |
| Dimensions | 3.03 x 2 x .69" (76.96 x 50.80 x 17.53mm) |
| Weight | 3.6 oz (102g) (including battery) |
Resources & Documents
| mm400c.pdf | Datasheet |