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アンプ Crescend DSDTJK50-01TのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。Crescend DSDTJK50-01T 2 ページ。 Mobile power amplifier

It is recommended to connect the nut clamp "GND" to the nearest ground point at the place of

installation.

Use copper wire # 10 or #12 AWG shall for connection to the car battery. Wires shall be crimped

for making ring terminals.

Connect the clamp "- 13.8V" to the pole "

Connect the clamp "+ 13.8V" to the pole "

Use 50 Ohm coax cables with TNC (M) connectors for connecting to "XCVR" and "ANT" .

Connect the port "XCVR" to RF output of radio.

Connect the port "ANT" to antenna.

3. Operation Guide

- The DC power supply voltage should provide 13.8 V nominal. The allowed DC voltage

value is between 10.8 V and 17.8 V. Note: with DC voltage less than 13.8 V, the output

power may be less than rated 50W;

- Do not apply RF signal out of rated frequency range 769 – 869 MHz;

- For transmitting the input RF power should be in the range 1...4 W;

- The continuous transmit time should not exceed 3 min, and the duty cycle should not be

greater than 40% for avoiding the overheat;

In the case of overheat (if the heatsink temperature reaches +85ºC) the unit switches to

RX mode;

If the load VSWR exceeds 2-3, the output power reduces.

FCC RF Exposure:

This transmitter must be restricted to work related operations in a controlled RF exposure

environment. All qualified end-users of this device must have the knowledge to control their

exposure conditions and/or duration, and the exposure conditions and/or duration of their

passengers, to comply with the General Population/Uncontrolled MPE limit and requirements.

All users should maintain a safe distance of 115cm.

WARNING: This is NOT a CONSUMER device. It is designed for installation by FCC

LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express

consent of an FCC Licensee to operate this device. Unauthorized use may result in significant

forfeiture penalties, including in excess of $100,000 for each continuing violation.

Part 90 Amplifier - FCC 90.219 CLASS B DEVICE

FCC ID#: CWWDSDTJK50

" of car battery.

" of car battery. Use 30 A fuse for protection.