Lectrosonics HM User Manual download pdf (Page 16)

LECTROSONICS, INC.

Low frequency roll-off: Selectable; -3dB at 35, 50 or 70 Hz.

Audio Frequency Response: 35 Hz to 20 kHz, +/-1 dB (The low frequency

roll-off is adjustable)

Signal to Noise Ratio (dB):

(overall system, 400 Series mode)

(Note: the dual envelope “soft”

limiter provides exceptionally

good handling of transients

using variable attack and release

time constants. The gradual onset of limiting in the design begins below full

modulation, which reduces the measured ﬁgure for SNR without limiting by 4.5 dB)

SmartNR No Limiting w/Limiting

OFF 103.5 108.0

NORMAL 107.0 111.5

FULL 108.5 113.0

Total Harmonic Distortion: 0.2% typical (400 Series mode)

Audio Input Jack: 3-pin Female XLR

Phantom Power: 5V @ 18 mA max., 15V @ 15 mA max.

and 48 V @ 4 mA max., plus “OFF”

Antenna: Housing and attached microphone form the

antenna

Batteries: Two 1.5 Volt AA lithium or rechargeable

NiMH recommended

Battery Life:

AA Batteries No Phantom* 48V On**

Alkaline 5h 0m 3h 30m

NiMh 2500 9h 15m 7h 0m

Lithium 16h 0m 12h 45m

*Tested with a dynamic microphone

**Tested with a Sanken CS1 for a phantom-

powered microphone

Weight: 6.7 oz (190 grams) without batteries

Overall Dimensions: 4.25x1.62x1.38 inches

Emission Designator: 180KF3E

Speciﬁcations subject to change without notice.

Operating frequencies:

Block 470 470.100 - 495.600

Block 19 486.400 - 511.900

Block 20 512.000 - 537.500

Block 21 537.600 - 563.100

Block 22 563.200 - 588.700

Block 23 588.800 - 607.900 and 614.100 - 614.300

Block 24 614.400 - 639.900

Block 25 640.000 - 665.500

Block 26 665.600 - 691.100

(Frequency usage varies by country)

Frequency range: 256 frequencies in 100 kHz steps

for one 25.5 MHz wide block

Channel Spacing: 100 kHz

Frequency selection: Control panel mounted membrane switches

RF Power output: 100 mW (nominal)

Compatibility Modes (6) Digital Hybrid Wireless

™

(400 Series),

200 Series, 100 Series, Mode 3

(other analog), Mode 6, and IFB

Pilot tone: 25 to 32 kHz; 5 kHz deviation

(in 400 Series Mode)

Frequency stability: ± 0.002%

Deviation: ± 75 kHz max. (in 400 Series Mode)

Spurious radiation: 60 dB below carrier

Equivalent input noise: –125 dBV, A-weighted

Input level:

If set for dynamic mic: 0.5 mV to 50 mV before limiting.

Greater than 1 V with limiting.

If set for electret lavaliere mic: 1.7 uA to 170 uA before limiting.

Greater than 5000 uA (5 mA) with limiting.

Line level input: 17 mV to 1.7 V before limiting.

Greater than 50 V with limiting.

Input impedance: 300 Ohms

Input limiter: Soft limiter, 30 dB range

Gain control range: 55 dB

Modulation indicators: Dual bicolor LEDs indicate modulation of

–20, -10, 0, +10 dB referenced to

full modulation.

Controls: Control panel with LCD and four membrane

switches.

Speciﬁcations and Features

TheFCCrequiresthatthefollowingstatementsbeincludedinthismanual:

For body worn operation, this HM Transmitter has been tested and meets the FCC

RF exposure guidelines when used with the Lectrosonics accessories supplied or

designated for this product. Use of other accessories may not ensure compliance with

FCC RF exposure guidelines. Contact Lectrosonics if you have any questions or need

more information about RF exposure using this product..

This device complies with FCC radiation exposure limits as set forth for an uncontrolled

environment. This device should be installed and operated so that its antenna(s) are not

co-located or operating in conjunction with any other antenna or transmitter.

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