Version 2.
LIMITED WARRANTY Young Design, Inc. (YDI) warrants that your device is free of defects in material and workmanship for a period of one year after initial purchase. YDI will, in this period of time, repair or replace, any YDI product returned to the factory, freight prepaid. The YDI warranty covers repairs or replacement (at YDI’s option) of the product only. YDI is not responsible for the cost of removal, reinstallation, or shipping to the place of repair.
TABLE OF CONTENTS 1. DESCRIPTION ......................................................................................................................................................................... 1 2. AMPLIFIER FEATURES ............................................................................................................................................... 1 2.1 GENERAL SPECIFICATIONS ................................................................................................................
1. Description The AMP2440 is a bi-directional amplifier designed for extending the range of 2.4 GHz wireless radio modems, Wireless LAN cards, Access Points and wireless bridges. The units provide transmit power amplification as well as receive signal gain. The amplifier is installed right at the antenna’s feed point, providing maximum effectiveness of transmit power. This has the effect of compensating for signal loss in the transmitter cable to the antenna.
Receiver Low Noise Amplifier (LNA) 2.1 General Specifications Operating Range: 2400-2483 MHz Receive Gain: 16 dB nominal Freq Response : +/-1 dB over operating range Operating Bi-directional, half-duplex. Senses RF Mode: carrier from transmitter and automatically switches from receive to transmit mode.
3. Amplifier Kit IMPORTANT: Only mount the amplifier with the connectors facing downward. Do not mount it with the connectors facing sideways or upwards. Each Amplifier Kit Includes: • • • • • Bi-directional remote mounted amplifier DC Power Injector 12 VDC, 110/220 VAC Power Supply Stainless Steel U-Bolts and mounting bracket for amp Installation Manual Close up of the bracket and mounting hardware attached to the amplifier.
SAFETY NOTICE This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment when installed as directed. This equipment should be installed and operated with fix-mounted antennas that are installed such that the main lobe(s) of these antennas will have a minimum of 2 meters of separation distance between the antenna and all persons’ body during normal operation. The amplifier can be mast mounted using the steel U-bolt included with the unit.
5. Amplifier Connections and Indicators CAUTION: Only use high quality N-type connectors. Do not use PL259 “CB” type UHF connectors. Doing so will ruin the N-Female jacks and void your warranty. Transmit LED: This LED glows RED when the amp has switched to the transmit mode. This occurs when the amp detects RF power at the jack labeled “To DC Injector”. (See Section 9 operation for more information) Receive LED: This LED glows GREEN in the receive mode when DC power is applied to the amplifier.
7. DC Power Injector Connections and Indicators Red Transmit LED: This LED glows RED when the pole mounted amplifier goes into transmit amplification mode. The Remote Transmit LED is controlled by unique circuitry, which actually detects changes in the DC current traveling through the transmission line to the amplifier. When you see this LED flash, you will know that the remote pole amplifier is going into transmit mode.
9. Operation The unit operates automatically and there are no user adjustments. The amplifier is only intended for use with 2.4 GHz radio modems that alternate between transmit and receive in the same radio channel. These are referred to as Time Division Multiplex (TDD) devices. A typical example is an 802.11 WLAN card or Access Point. These modems “ping-pong” back and forth between transmit and receive so quickly during normal operation that both the TX and RX LEDs will appear to be lit simultaneously.
8 (CAB-LL ) Drip Loop N-female RF + DC DC POWER INJECTOR 12 VDC Barrel Plug DC P.S. LMR-400 (50 to 100 feet) LMR-600 (80 to 180 feet) LMR-900 (120 to 260 feet) LMR-1200 (150 to 350 feet) N-female Barrel Plug Radio Modem, Access Point, WLAN Card, etc Connector required by radio 12 VDC Short length of RG58/U Optional Jumper Cable (CAB-DC-2.x) 110/220 VAC Drawings\diagrams\install-amp-Generic To Network YDI can provide all necessary cables, antennas and accessories.
Table A - Conversions from dBm to Watts dBm 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Watts 1.0 mW 1.3 mW 1.6 mW 2.0 mW 2.5 mW 3.2 mW 4.0 mW 5.0 mW 6 mW 8 mW 10 mW 13 mW 16 mW 20 mW 25 mW 32 mW 40 mW 50 mW 64 mW 80 mW 100 mW 128 mW 160 mW 200 mW 250 mW 320 mW dBm 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 60 Watts 400 mW 500 mW 640 mW 800 mW 1.0 W 1.3 W 1.6 W 2.0 W 2.5 W 3.0 W 4.0 W 5.0 W 6.0 W 8.
APPENDIX A: Calculating Power This appendix explains how to calculate the input power to the amplifier for your configuration. 1. Using Table A, convert the output power of the radio modem from Watts (or milliWatts) to dBm. The Model Amp 2440 amplifier works with input powers between 3.2 mW, +5 dBm, and 100 mW (+20 dBm). 2. Calculate the cable attenuation for your installation. First, determine the attenuation for the length of your cable at 2.4 GHz.
APPENDIX B: FCC Part 15 Certified Systems FCC ID#: NM5-LUC2400E FCC certified systems consist of: • • • • A2440-xxF amplifier, DC Injector and 12 VDC Power supply Orinoco/Agere WLAN card with the FCC ID#: IMRWLPCE24H Outdoor Antenna Coax cable (See table B) Agere Authorized Antennas Model Antenna Type Max EIRP (dBm) 48 MPE Distance (CM) Grid Dish Antenna Antenna Gain (dBi) 24 Lucent AOU24-DI-24 YDI PT2424 Grid Dish Antenna 24 48 71 YDI PT2421 Grid Dish Antenna 21 45 50 YDI A2.
FCC ID#: NM5-C111E FCC certified systems consist of: • • • • A2440-xxF amplifier, DC Injector and 12 VDC Power supply Nokia C111 WLAN card with the FCC ID#: ORE-C110-C111 Outdoor Antenna Coax Cable (See table B) Nokia Authorized Antennas Model Antenna Type Grid dish Antenna Antenna Gain (dBi) 24 Max EIRP (dBm) 48 MPE Distance (CM) 71 YDI PT2424 YDI PT2421 Grid dish Antenna 21 45 50 YDI A2.45FP18 Flat Panel Antenna 18 42 36 YDI A2.45FP15 Flat Panel Antenna 15 39 25 YDI A2.
FCC ID#: A2400S FCC certified systems consist of: • • • • A2440-xxF amplifier, DC Injector and 12 VDC Power supply Agere WLAN card, PART#: 012699 Outdoor Antenna Coax cable (See table B) Agere Short Card Authorized Antennas Model Antenna Type Max EIRP (dBm) 48 MPE Distance (CM) Grid Dish Antenna Antenna Gain (dBi) 24 Lucent AOU24-DI-24 YDI PT2424 Grid Dish Antenna 24 48 71 YDI PT2421 Grid Dish Antenna 21 45 50 YDI A2.45FP18 Flat Panel Antenna 18 42 36 YDI A2.
Note: 1. 2. MPE distance figures are based on a conservative “worst case” prediction, i.e. +24 dBm into antenna using formula S=EIRP/(4piR2) and no calculation for duty factor. In practice the minimum distance will be much shorter. The minimum MPE distance has been calculated for the maximum allowed Power Density (S) limit os 1.0 mW/cm2 in the Frequency range 1500-100,000 MHz for uncontrolled environments (Ref.2). Reference: 1. FCC Part 15, sub-clause 15.247 (b)(4) 2.
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