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LINEAR 4 CHANNEL HANDHELD TRANSMITTER
RF CONTROL FOR MORE THAN 10 MILES!!
The Model LNXT4H 4-Channel Handheld Mid-range Transmitter is designed for use in various wireless remote control applications. When activated, the XT-4H portable transmitters will send a 2 watt, 27.255 MHz, digital encoded, FSK modulated, signal to their companion receiver. The receiver will verify the digital code, activate its output, and trigger the remote device.
The Model LNXT4H is a four-button, four channel transmitter. Each transmission is limited to a maximum of 30 seconds duration.
The LNXT4H portable transmitter is powered by two 9-volt alkaline batteries in series, supplying 18 volts. During transmissions, the red operation indicator will light (visible through a window next to the antenna). If the transmitter's battery voltage is low, the indicator will blink during transmissions. The XT-4H transmitter has battery supervision capabilities. If the combined battery voltage drops below 12 volts, a low battery message will be included with any signal transmitted, causing the receiver's low battery output to activate. The test button next to the indicator sends a test transmission when pressed.
Two 8-position switches set the unit's system code. This code must be matched in the transmitter's companion receiver. There are 65,536 different system codes possible. The option switch selects the receiver's bank (for the XR-16 receiver only).
REMOTE POSSIBILITIES BECOME REALITIES
Linear developed Xtended Range with flexibility and
variety in mind, so users can tailor long-distance links to
their needs—remote monitoring, switching systems,
networking, security, remote control. Different models
and channel combinations can be mixed and matched
to configure some very sophisticated systems.

Linear Mid-Range Handheld Transmitter Manual (.pdf)
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General Specifications
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Operating Temperature: |
-4°
to +140° F (-20° to +60° C) |
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Operating Frequency: |
27.255 MHz |
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Bandwidth: |
6 KHz |
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Number of Codes: |
65, 536 |
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Code Setting Method: |
DIP switch programming |
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Power: |
Two
9V alkaline batteries (supplied) |
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Weight: |
1 lb. (0.454 Kg) |
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Dimensions: |
2.375 in W x 12.25 in H x 1.375 in D (60 x 311 x 35 mm) |
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RF Output Power: |
2 Watts (typical) |
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Transmit Time: |
Up to 30 seconds |
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Code Transmission: |
Alarm and low battery |
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Antenna Impedance: |
50 Ohms (antenna supplied) |
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