User's Manual

The picture to the left shows the amplifier in typical

installation shown with the YDI Model PT2421 Grid

Dish antenna vertically polarized. The location on

the mast where the amplifier is mounted is not

important provided that the connectors face

downward. (Note that when this picture was taken,

the connectors were not taped yet nor was the

cable secured to the mast.) Also, there is no need

to plug or fill any of the holes on the back of the

amplifier enclosure. The housing is designed such

that these holes do not penetrate the inside of the

waterproof seal even though an initial inspection

might make you think otherwise.

If the tower or mast is adequately grounded and the U-

bolt makes good electrical connection to it, then there is

no need to provide additional grounding to the amplifier

enclosure.

The DC Power Injector is not in a waterproof enclosure and must be protected from the

weather. It can be permanently mounted to a surface using the mounting flanges. If the Injector

is not mounted to a well-grounded metal plate or bulkhead, then a separate ground strap will be

needed to connect to the grounding stud on the Injector.

Refer to Section 11.0, Typical Installation Detail, for a drawing that outlines more

information about the installation.

6.0 Amplifier Connections and Indicators

CAUTION:

Use only 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 10 Operation for more information.)

Receive LED:

This LED glows GREEN in the receive mode when DC power is applied to the

amplifier. It is goes off when the amp is in the transmitting mode.

DC Injector

Connection:

This N-type female connects to the DC Power Injector via the transmission

cable. The length of this cable will determine the type of cable that should be

used. See the installation diagram and the Appendix for more information.

Antenna

Connection:

This N-type female connects to the antenna with a short length of low-loss

coax cable.