Basic Adjustment of the Polarmount Aerial
Setting the Zero Position and Limits
Driving the exactly mounted aerial to the east end stop
It is absolutely necessary to execute this step.
Before setting the limits L1 (East) and L2 (West), it is absolu- tely necessary that the aerial has been driven to its mechani- cal east end stop for setting the internal counter to zero.
The aerial must be mounted in such a way that no obstruc- tions (trees, walls, etc.) can hinder its travel to its east end position.
Follow these steps:
Switch the unit on.
Press the ¢ button 3 times.
The display indicates, for example:
TIMER o p ü +
I99 XL1XX414 STEREO
SIGNAL IIIIIIIIIIIII
Press the ¢< button to drive the aerial to the east.
Attention:
If the aerial should run in opposite direction, it is neces- sary to exchange the connections M1 and M2 on the ter- minal strip wU of the receiver.
Press and hold down the ¢< button until the east end stop is reached, giving the following indication: "EAST END". This represents the zero position of the internal counter and is the reference point for all satellite positions programmed at a later date.
Setting limits
When searching new satellites at a later date with the help of the manual aerial positioning function, it may happen that the limit switches or mechanical end stops (crash) are often run to. To avoid this, electronic limits can be set at a short distance in front of these end positions. For this, press the
¢> button to let run the aerial approx. 20 impulses to the west, then store the setting by pressing the ¢MEMORY button.
The display indicates:
TIMER o p ü +
I99 XLIMITX1 STEREO
SIGNAL IIIIIIIIIIIII
Press the ¢ button once again.
The display indicates:
TIMER o p ü +
I99 XL2XXX20 STEREO
SIGNAL IIIIIIIIIIIII
Press and hold down the ¢> button until the aerial has reached its west end stop.
The display indicates:
TIMER o p ü +
I99 WESTXEND STEREO
SIGNAL IIIIIIIIIIIII
Press the ¢< button to let run the aerial approx. 20 impul- ses to the east, then store the setting with the ¢MEMORY button.
The display indicates:
TIMER o p ü +
I99 XLIMITX2 STEREO
SIGNAL IIIIIIIIIIIII
You can connect to the receiver motors delivering max. 7999 impulses between the east and west end stops. The impulses can be generated by Reed contacts, Hall sensors, or opto couplers.
Adapting the Receiver to Different
Aerial Systems with Different
Today, there exist a variety of very different LNC types with different local oscillators and control commands for frequen- cy and polarization switching.
It is necessary to adapt the receiver to the used
For rotary systems, LNC´s with switchable frequency range are used. Polarization switching can be effected by means of a 14/18 V* supply voltage or
Your receiver is provided with 2 aerial inputs (Input A, Input
B)which make it possible to connect an additional aerial (for example, permanently pointing at the Astra satellite, which then is permanently available).
The following illustrations show several application possibili- ties.
The receiver offers a choice of three system configurations. These system configurations enable a large number of connection variants and make it very easy to adapt the recei- ver to the aerial system used.
*14/18 V LNC individually adaptable by ± 2 V (see wT in section "Receiver Buttons and Connections / Rear of unit).
12