Name: GPS Low Noise In-Line Amplifier (LNA), Type-N Connection
SKU: 760-611-000
Availability: InStock

GPS Low Noise In-Line Amplifier (LNA), Type-N Connection

$119.99

TimeMachines® GPS In-Line Low Noise Amplifier (LNA). By using the TimeMachines® LNA with the Type-N adapters, longer cable runs can be supported. This the same LNA as the standard unit but includes SMA to Type-N female adapters and is typically placed within the cable runs to the outdoor antenna. A TimeMachines® TM1000/2000/2500 can supply power to up to one splitter and the antenna utilizing the LNA’s pass through power functionality. If more than 1 LNA is to be used, an external power source will be needed as supplied by the 760-602-PWR or 760-604-PWR splitters.

The 760-610-000 does not have a connector for external power injection. Power is sourced from the center conductor of the connected cable. When using a TimeMachines® un-powered splitter, one of the output ports will pass DC power from the time server to the antenna to power the antennas internal amplifier. The other ports will block the DC power that the time server puts on the center conductor of the SMA connector. There is no need to disable the power output on the TimeMachines® products. Some time servers will generate an error message if their antenna output current is zero. Generally, this feature can be disabled if it is causing an issue although current models of splitters should alleviate this issue. There are two typical configurations for the TimeMachines® LNA.

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Description

Power Requirements for Low Noise In-Line Amplifier (LNA): The important thing to note about the power requirement is that currently shipping TimeMachines® time servers (TM1000A, TM2000B, TM2500C) can supply power to run one LNA plus the antenna. If more than a single LNA is put into series in the line, then a power source separate from the time server itself is required. TimeMachines® 2 and 4 port splitters with power injection can be used for this (SKUs: 760-602-PWR and 760 604-PWR). Even if the splitting function isn’t required, the ability to inject 9V onto the center conductor of the antenna cable will enable multiple LNA devices to be placed into the cable running to the antenna. The LNA is also capable of passing power through to the next device which could be another LNA, or the antenna itself. Installation: The next pages cover the common installation methods. It is critical that the input/output orientation be followed. Power status can be confirmed by looking through the hole on the side of the unit for the LED. Connections: RF In Port: should point toward the Antenna. It is also important that at least 25ft of cable be between the antenna and the Low Noise In-Line Amplifier (LNA). Less that that will over-saturate the input to the LNA causing degraded performance. RF Out Port: should point toward the time servers A simple 5/16 inch plastic wrench is included to help with the tightening of the SMA nuts.

Manual/Product Specification