User's Manual

Fiber Optics Powerwave

4 - 2 Rev. P1A9-Draft 2004-11 VM100 56/EN – User’s Manual

The RF Modulated Signal Paths

Figure 4-1 illustrates the downlink RF modulated signal path from the BTS via a BMU,

optical fiber, and a FOR to the repeater antenna. And also the uplink path from the

repeater antenna back to the BTS.

Figure 4-1. Downlink and uplink RF modulated signal paths

As the signal paths mainly are handled by the FON units, the signal description for this

unit, found in the RF Path 1 and RF Path 2 sections in Chapter 3, is applicable to the

downlink and uplink RF modulated signal paths. The amplifiers and duplex filter (DPX)

in the FOR are, however, not included in the FON description, but are found in the

repeater manual (VD203 66/EN, AR Repeaters, User’s Manual).

The signal paths are, however, also described below, but more in terms of radio

frequency signals in the entire chain, from the BTS to the repeater antenna, and the other

way around.

BTS

FON

BMU

FON

FOR

TX RX