Sony DWTB01/E3040 Product Information Document (Digirtal Wireless System Integ - Page 51

Configuring a DWX System Step 3 Checking the Service Area With One Channel Using the desired channel subject to severe conditions, assign a range of parameters for TX power output and RX attenuator settings, and check whether the settings result in coverage of the intended service area. Procedure 12 Power up only the desired channel TX and establish a setup simulating the expected conditions during actual operation. Example: If the TX is the DWM-01, it should be held in the hand, close to the mouth. If the TX is the DWT-B01, it should be worn on the hip. * Equipment other than TX (RX, boosters, etc.) should be constantly on. 13 Make the parameter settings, and move the desired channel TX throughout the service area, checking at various locations. Sample settings for checking  Band to use: Band established in step 1.  Group to use: Group established in step 1.  Antenna installation location/orientation: As determined in step 2.  Antenna gain: As determined in step 2.  Number of antennas: As determined in step 2.  TX RF power: To be determined in this step *1 (settings 1 to 6 in table below)  RX attenuator: To be determined in this step *1 (settings 1 to 6 in table below) RX ATT 10 dB 5 dB 0 dB TX RF power 1 mW 10 mW Setting 1 Setting 4 Setting 2 Setting 5 Setting 3 Setting 6 As 50 mW output of the TX produces high third-order intermodulation distortion, it is not suited for simultaneous multi-channel operation. Therefore, 50 mW output is excluded from the items for checking. Checking procedure Check the following:  No dropouts in audio signal  RF indicator lit in green  QL meter shows more than 4 segments *1 When multiple TX are used in step 4 and following, changing the TX RF power for a high number of channels is time-consuming. On the other hand, changing the RX attenuator setting can be done at the first DWR-R01D of the cascaded configuration and is therefore relatively easy. To simplify the procedure, you can first perform steps 3 to 5 by changing the RX attenuator setting only, and then change the TX RF power and repeat steps 3 to 5. Sample results RX ATT 10 dB 5 dB 0 dB TX RF power 1 mW 10 mW Setting 1: Poor Setting 4: Good Setting 2: Fair Setting 5: Good Setting 3: Good Setting 6: Good Making and Checking RF Settings (UHF) 51