UM-0821
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4. Setup desired operating gain using FCS. UL and DL chain are independent, so both values must be
set. To set DL band gain is recommended that AGC works around 3 - 6dB in each channel, in this
way, maximum output power is achieved.
5. Set up squelch settings. Controls are independent in UL and DL bands. Typical values for UL are -
110dBm for squelch threshold. For DL, recommended value for squelch threshold is minimum level
received in any active channel minus 10dB.
6. Setup desired filter bandwidth, depending on presence of adjacent channels. In principle,
recommended bandwidth filter is 90KHz due to its low delay, but if adjacent signal is detected, narrow
filters can be used. Spectrum analyzer of FCS can be used to know rejection to undesired signals. It is
recommend that adjacent channels output power be, at least, 10dBc lower than useful carrier.
Next figures, shows how integrated spectrum analyzer can help to select bandwidth
filters:
Summary of Contents for DH7 Series
Page 1: ...English DH7 Series Digital Signal Booster User Installation Manual ...
Page 11: ...UM 0821 6 2 2 Product Parts ...
Page 12: ...UM 0821 7 2 3 Dimensions ...
Page 14: ...UM 0821 9 2 After attaching the bracket hang the Signal Booster as shown in Figure 3 Figure 3 ...
Page 17: ...UM 0821 12 B Open the Signal Booster cover Figure 6 C Close the Signal Booster cover Figure 7 ...
Page 18: ...UM 0821 13 D Secure Signal Booster cover Figure 8 ...
