Every signal chain lives from its strong members. The 9.5" transmitter TX-300V from Phonak is the ideal transmitter for the world's first (and only!) in-ear RF receiver: invisity. The TX-300V covers the entire frequency range from 150-220 MHz. Twenty frequencies are freely programmable along with the transmission strength and channel names. Individual inputs as well as Automatic Gain Control are supported. Included in the delivery are a power supply, a dipole antenna, a wall-mounting assembly and an antenna cable. A 19" rack-mount kit for one or two TX-300V transmitters is available as an option; included is a transparent adjustable security cover limiting access to the unit.

FEATURES
 Fully programmable.
 20 frequency settings.
 2 adjustable length radials.
 Frequency range of 150-220 MHz.
 Remote antenna with mounting bracket.
 Resistant to temperature extremes and humidity.

Specification

RF Frequency Range 150–220 MHz (actual frequencies for each unit set by Phonak
or authorized representatives)
Number of Channels 20 Maximum
Frequency Accuracy +/- 0.005% stability 0 to 50°C
Transmitter Stability 50 PPM
Modulation FM (narrow band)
Max. frequency deviation Δf < 6 kHz
Output Power 50 mW, 100 mW, 300 mW (programmable with FM SuccessWare),
Switch for 25%, 50% or 100% output power on the TX-300V
Antenna Dipole antenna (included with transmitter) cable length: 7.6 m
Antenna Connector BNC
Signal-to-noise Ratio > 45 dB Δf > 4 kHz
Compliance ETSI EN 300 422-2, ETSI EN 300-454-1, FCC Part 15, Industry Canada
Audio Audio Bandwidth 100–7000 Hz
System Distortion <2% total harmonic distortion (THD) at 80% deviation
Audio Input 1 Rear panel. Female-XLR and phone combo connector, balanced,
0/-55 dBu (line/mic) nominal input level adjustable
Audio Input 2 Rear panel. (2) phono connectors, unbalanced, -10/+10 dBu nominal
input level adjustable, +30 dBu maximum, impedance 100 kΩ
Combined Audio Output (Mix) Rear panel. (2) phono connectors, unbalanced, 0 dBu nominal output level,
+19 dBu maximum, impedance 10 Ω
Headphone Output Front panel. (1) 3.5 mm connector, unbalanced, adjustable output level
Controls Front Panel Power, test tone on/off, channel up/down, input level, mix level, contour,
headset level
Rear Panel Input 1 level (line, mic, mic-phantom power), input 2 level (-10/+10 dBu),
RF power (low, mid, high)
Internal Adjustments Compression ratio for audio processor
Programming Processing on/off
Indicators Input 1 and Input 2, Mix VU Meters 8 green, 2 red
Processing Indicated by a green LED when on
RF Power Indicated on the LCD
Power Red LED illuminates when the unit is powered up
LCD Channel designation, lock status, RF power level, programming
Test Tone Red LED illuminates when test tone enabled
Power Power Supply Type In-line power supply
Power Supply Input 110-230 VAC/50 Hz
Power Supply Output 12 VDC, 1000 mA
Power Supply Connector 5.0 mm (.02 in) 2.5 mm (OD × .01 in) ID, barrel type
Compliance CE
Physical Dimensions W x D x H 20.3 × 20 × 4.45 cm (8.0 × 8.0 × 1.75 in)
Unit Weight 1.4 kg (3.0 lbs)
Unit Weight
with LA-201 Power Supply 2.0 kg (4.4 lbs)
Shipping Weight 2.3 kg (5.0 lbs)
Rack Mounting 1 rack unit, optional rack mount not included.
Order Phonak part number 116-1940.
Environmental Temperature - Operation -10°C (14 F) to +40°C (104 F)
Temperature - Storage -20°C (-4 F) to +50°C (122 F)
Humidity 0 to 95% relative humidity, non-condensing