ZAXCOM TRX745/42
The TRX745 is a wide-band plug-on style digital wireless microphone transmitter with interchangeable cones to support all professional microphone varieties, mono analog, stereo analog, AES and AES42, making it an ideal choice for wireless transmission directly from boom poles or handheld microphones.
The TRX745 features the Zaxcom High Density (ZHD) Modulation. Range will always vary depending on your environment, but you've got choices to optimize transmission for peak performance. Zaxcom High Density modulation (ZHD) increases the number of available channels from 4 to 9 for every 1 MHz of spectrum space, perfect for reflective environments like busy city streets. XR gives you the maximum distance in less dense / more controlled spaces. The ZHD transmitters are capable of running all existing mono Zaxcom modulations maintaining compatibility with all currently produced Zaxcom receivers.
The TRX745 body is constructed from a combination of high strength nylon polymer and aluminum. The 745 utilizes Zaxcom's battery saving feature PowerRoll. PowerRoll automatically adjusts the transmitter output power based on the record status as sent via ZaxNet boosting the output power level up while rolling and powering down while on standby.
The 745 works with ZaxNet, Zaxcom's 2.4-GHz RF network that distributes remote control commands, timecode and IFB audio. With ZaxNet, one can remotely control transmitter settings such as gain, frequency channel selection, transport controls and output power levels. The TRX745 also sends a quality control audio signal over ZaxNet so when micing someone you don't have to go to the cart to hear how it sounds. Now you can use an ERX to listen to the mic right on the spot.
The TRX745 can be pruchased with or without a cone. The TRX745's cones are easily swapped in the field for ultimate flexibility. Extra cones can be purchased as accessories.
Cone choices (appended to model name):
- mono analog, 3-pin XLR (-A)
- stereo analog, 5-pin XLR (-S)
- AES (not powered), 3-pin XLR (-AES)
- AES42 (powered), 3-pin XLR (-42)
TRANSMITTER:
- RF modulation: proprietary digital method
- TRX745 RF frequency range: 512 to 698MHz
- RF frequency step: 100KHz
- RF bandwidth in ZHD mode: 50KHz
- RF bandwidth in XR mode: 200KHz
- channel separation in ZHD mode: as close as 100KHz (receiver dependent)
- channel separation in XR mode: 400KHz
- antenna connector: 50 Ohm SMA Female
- emission designator: 180 KV2E, 100 KV2E, 50 KV2E
- FCC part: 74.861
TRANSMITTER AUDIO:
- dynamic range: 126dB (stereo model 106dB)
- distortion: 0.002%
- frequency response: mode 0 = 20Hz to 16kHz / T&M mode 0 = 0.2Hz to 16kHz
- high pass filter: off or 30 to 220Hz, steps = 10 (6dB per octave)
- mic connector: 3-Pin or 5-Pin XLR
- analog mic power: 48V phantom (10mA max)
- digital mic power: 10V AES42 compatible (200mA max)
- input range: -60 to -30dBu
- mic impedance: 4.7kOhms
- ADC bit-depth: 24 bits
- audio interfaces: balanced analog mono, balanced stereo, AES42, AES
TIMECODE READER/GENERATOR:
- clock accuracy: 1.54 PPM (1 frame out in 6 hours)
- timecode type: SMPTE
- timecode frame-rates: 23.98, 24, 25, 29.97NDF, 29.97DF, 30NDF, 30DF
INTERNAL RECORDNG:
- media: MicroSD Card (Flash Memory)
- file format: .ZAX
2.4 GHz ZAXNET RECEIVER
- RF frequency range: 2.403 to 2.475GHz
- RF modulation: Digital Spread Spectrum
- RF frequency step: 0.001GHz (1MHz)
- RF bandwidth: 1MHz
- channel separation: 2MHz
- sensitivity: -96dBm
PHYSICAL:
- weight: 212.6grs with battery
- dimensions (H x W x D in mm): 50 x 115 x 40
- display: graphic OLED
POWER:
- power output: 25, 50 or 100mW (software selectable)
- battery type: 3x AA cells
- battery life is dependent on Battery type and microphone power requirements
| Brand | Zaxcom |
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