Lectrosonics HMBLOCK470 Transmitter UHF 470-495
Lectrosonics HMBLOCK470 Transmitter UHF 470-495
Wireless Transmitters may only be purchased with associated receivers.
The HM plug-on transmitter features a DSP-based Digital Hybrid Wireless® design that allows the transmitter to operate in its native, compandor-free hybrid mode or in compatibility modes for IFB products. The body of the transmitter is machined from a solid billet and finished in a Teflon impregnated nickel plating for the ruggedness needed in field production.
Features:
- Converts microphones with XLR jacks to wireless operation
- Backlit LCD and membrane switches
- Selectable 5, 18 and 48 volt phantom power plus off position for dynamic microphones
- Adjustable low frequency roll-off
- Powered by two AA batteries
- 256 synthesized UHF frequencies
- 50 mW output power
- Rugged machined aluminum housing
Specifications:
- Operating Frequencies (MHz): 470.100 – 495.600
- Frequency selection: 256 frequencies in 100 kHz steps
- RF Power output: 50 mW (nominal)
- Pilot tone: 25 to 32 kHz; 3 kHz deviation (Digital Hybrid compatibility mode)
- Frequency stability: ± 0.002%
- Deviation: ± 50 kHz (max)
- Spurious radiation: 60 dB below carrier
- Operating temperature range: -30° C to +60° C
- Equivalent input noise: –118 dBV (A-weighted)
- Input level: Nominal 3mV to 450 mV, before limiting. Greater than 10 V maximum, with limiting.
- Input impedance: 1k Ohm
- Input limiter: Dual envelope “soft” limiter; greater than 30 dB range
- Gain control range: Firmware Ver. 1.3: 45 dB, Firmware Ver. 1.5: 55 dB
- Modulation indicators: Dual bi-color LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation
- Frequency Response: 35 Hz to 20 kHz (+/-1dB); low frequency roll-off is adjustable
- THD: 0.2% (typ. 100 Hz to 20 kHz – see graph)
- Input Dynamic Range: 125 dB (with full Tx limiting)
- Controls: Four membrane switches and LCD on control panel for all setup and adjustment
- Audio Input Jack: Standard 3-pin XLR (female)
- Phantom Power Selector: 5V @ 18 mA max., 15V @ 15 mA max. and 48 V @ 4 mA max., plus “OFF”
- Antenna: Housing and attached microphone form the antenna
- Battery: Two AA; lithium or NiMH type
- Battery Life: 4.5 hours (alkaline); 12 hours (lithium) (battery life varies with battery brand, phantom power selection and mic current consumption)
- Weight: 6.7 ozs. – 190 grams (without batteries)
- Dimensions: 4.25 x 1.62 x 1.38 inches
- Emission D
