Lectrosonics HMa, CARDIOID CNDNSR CPSL HEAD FOR HH TX, VARI-MIC EQ

Descriptions Lectrosonics HMa, CARDIOID CNDNSR CPSL HEAD FOR HH TX, VARI-MIC EQ The Lectrosonics HMa is a UHF plug-on transmitter that accepts mic or line-level signals via a standard XLR connector. The Lectrosonics HMa has selectable 5, 15, & 48V phantom power and can be used when paired with a Lectrosonics receiver and handheld microphone - sold separately - in applications for ENG (Electronic News Gathering), EFP (Electronic Field Productions), interviews for broadcast TV, and more. The input amplifier of the Lectrosonics HMa transmitter uses an ultra-low noise op-amp for quiet operation and is gain controlled with a wide range dual envelope limiter. A 24-bit A to D converter digitizes the audio, and filters the supersonic noise above 21 kHz. The resulting signal is encoded with a proprietary algorithm to produce an analog data signal for RF transmission. Also, the Lectrosonics HMa features a wide tuning range of 76 MHz, with tuning steps in increments of 100 kHz or 25 kHz for up to 3072 frequencies, the HMa transmitter also covers three standard 25.6 MHz Lectrosonics frequency blocks. Each block provides 256 different pilot tone frequencies. Legacy analog wireless microphone and IFB receivers are designed to work in DSP compatibility mode, as well as some receivers from other manufacturers. Finally, the transmitter is powered by two AA batteries, with status indicated by a multi-color LED. A USB port is also provided for firmware updates, and an IR (infrared) port is included to simplify setup with IR enabled receivers. The Lectrosonics HMa has 3 frequency range: HMa A1 : 470 to 537 MHz HMa B1 : 537 to 607 MHz HMa 941 : 941:941 to 951 MHz Lectrosonics HMa Main Features Accepts audio from any microphone or audio source with an XLR connector Selectable 5, 15, 48 volt phantom power 76 MHz tuning range in 100 kHz or 25 kHz steps for up to 3072 frequencies(941 band offers 695 frequencies over 19 MHz tuning range with 25 kHz steps) Selectable 50/100 mW output power Adjustable low frequency roll-off Powered by two AA batteries USB port for firmware updates IR (infrared) port for fast setup Solid machined aluminum housing Specifications Frequency Selection Steps Selectable; 100 kHz or 25 kHz Operating Frequency A1: 470 to 537 MHz / B1 : 537 to 607 MHz / 941:941 to 951 MHz RF Power Output Selectable 50/100 mW Pilot Tone 25 to 32 kHz; 5 kHz deviation (in the Digital Hybrid mode) Frequency Stability ± 0.002% Deviation ± 75 kHz (max in Digital Hybrid mode) Spurious Radiation 60 dB below carrier Equivalent Input Noise -125 dBV (A-weighted) Input Level Nominal 2 mV to 300 mV, before limiting; greater than 1V maximum, with limiting Input Impedance 300 ohms Limiter Dual envelope "soft" limiter; greater than 30 dB range Gain Range 55 dB; panel mounted membrane switches Modulation Dual bi-color LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation Frequency Response 35 Hz to 20 kHz (+/-1 dB) Low Frequency Roll-Off Adjustable for -3 dB @ 30, 50, 70 Hz THD 0.2% (typ. 100 Hz to 20 kHz) Signal to Noise Ratio SmartNR Off no limiting: 103.5 dB limiting: 108 dB SmartNR Normal no limiting: 107 dB limiting: 111.5 dB SmartNR Full no limiting: 108.5 dB limiting: 113 dB Dynamic Range 125 dB (with full Tx limiting) Controls and Indicators Power/Phantom "ON-OFF" switch Phantom voltage selector switch Audio input gain knob LCD w/ membrane switches LED audio level indicators Audio Input Jack Standard 3-pin XLR (female) Phantom Power Off; 5 V @ 18 mA max; 15 V @ 15 mA max; 48 V @ 4 mA max Antenna Housing and attached microphone form the antenna Battery Two 1.5 Volt AA lithium or rechargeable NiMH recommended Battery Life Alkaline No Phantom: 5 hrs 48 V on: 3.5 hrs Emission Standard 180KF3E Dimensions 4.25 x 1.62 x 1.38" / 10.8 x 4.1 x 3.5 cm Weight 7.5 oz / 211 g with AA batteries