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5. Testing 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

6. Troubleshooting

 

 
 

Q1. Why is there still no signal after installing the equipment? 

 

Answer:

 

1. Check the power on repeater and power supply. 
2. Check the connector of outdoor antenna is tight or not.  
3. Check the connectors of RF cable are tight or not. 
4. Check the outdoor signal is strong enough or not.  
5. Check to make sure the antenna is installed correctly. 
6. Check the connector of indoor antenna is tight or not.   
7. Check the cable type is suitable or not.  

 

 

Q2. Why the signal strength is too weak on the edge of area?  

 

Answer: 

1. Check the outdoor signal and antenna direction. 
2. Check repeater is full gain or not.  
3. Check all of the connectors are tight. 
4. Change the location of outdoor/indoor antenna. 
5. Check the cable type is suitable or not. 
6. Deploy more indoor antennas. 

 

 
 

Q3. Why can’t I

 make a call after installation, even though I can  

detect a signal?

 

 

Answer: 

1. Check LED status of repeater to make sure alarms are green. 
2. Change the location of outdoor / indoor antenna. 
3. Reduce the UL gain of the repeater. 
 

 

 

Q4. The signal is not stable after turning on the repeater power. 

 
Answer: 

1. Check to see if the outdoor signal is stable or not. 
2. Check the location of the donor antenna. Too close to other antennas. 
3. Check the RF cable is broken or not and has no coils. 
4. Confirm direction of donor antenna in relation to cell tower. 

 

 

Q5. Why is the LED on the front of the repeater not lit? 

 

Answer: 

1. Check the power source is normal or not. 
2. MUTE feature is active. Attenuate gain of repeater and cycle power. 
 
 

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Summary of Contents for JDIR-37-87

Page 1: ...JDTECK INC 215 Celebration Place Suite 180 190 Kissimmee FL 34747 Technical User Manual JDIR 37 87 40 90 Band Selective Industrial Repeater...

Page 2: ...cedure Antenna Mounting 10 3 3 Installation Procedure Repeater Mounting 11 3 4 Installation Procedure Repeater Mounting Cont 12 4 Manual Gain Adjustment UL DL 13 5 Testing 15 6 Troubleshooting 16 7 FC...

Page 3: ...rk architecture with complete coverage in mind This includes seamless coverage in urban areas heavy traffic areas office buildings super markets and top grade hotels as the first step Cellular repeate...

Page 4: ...re of this repeater called manual gain control MGC This allows the end user to further reduce the output gain of the repeater by using the DIP switches to manually attenuate reduce the repeater s outp...

Page 5: ...er gain is 80dB then you need 95dB of isolation between outdoor antenna and indoor antenna 5 The repeater gain is adjustable for both the uplink downlink individually Depending on the environment the...

Page 6: ...ncy Return Loss Directional couplers MUST be installed in the right direction and with the correct values as outlined in the DAS design DOUBLE CHECK ALL YOUR WORK The extra time you invest to do so wi...

Page 7: ...Once the bracket is secured to the wall then slide repeater onto the bracket Example of repeaters installed in communications closet 3 4 Installation Procedure Repeater Mounting Cont For the pole mou...

Page 8: ...e the repeater is ON If the LED does not change to green then your input signal from the cell tower is very strong At this point you attenuate the DL gain by 1dB increments till the LEDs turns green a...

Page 9: ...ght 4 Change the location of outdoor indoor antenna 5 Check the cable type is suitable or not 6 Deploy more indoor antennas Q3 Why can t I make a call after installation even though I can detect a sig...

Page 10: ...110 2155 MHz Max Gain JDIR 37 85dB 87dB JDIR 40 90dB Max Output Power JDIR 37 17 2dBm 37 2dBm JDIR 40 19 2dBm 43 2dBm Band width Selective SAW Filter Manual Gain Control 31dB Intermodulation Products...

Page 11: ..._______________________________________ _________________________________________________________________________________ ______________________________________________________________________________...

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