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ago 3

Hi I just bought a babyloop I have a problem

1 commento

after I connected it.

It doesnot recognize the antenna type and when I tested it with / it gives 9.9 swr on 40 m.

and swr lower on 20 m.to 5,6

in the end it gives a message of motor fail /no load you can see it in the video.

pls. help me to fix this problem.Regards from Serdar Savran TA3OOS 73



ago 4

Hi, Serdar,

Let's see if we can establish what is wrong. The 'MOTOR FAIL' error message occurs when the controller cannot detect any motor current. This can happen if the control cable is open-circuit, or if the actuator is driven into either the inner or outer electrical limit. To get out of this you have to enter the T.EST mode and command the actuator to move. Your video shows you using the TEST mode, so I assume you know how to do this. Failure to recognise the antenna type is usually caused by a RF cable fault. Make sure there are no kinks or sharp bends in the cable, and that there are no joins. Place a 50 ohm dummy load at the antenna end and measure with a multi meter at the controller end and verify that you see 50 ohms. If you have an antenna analyser, then sweep the RF cable terminated in a good 50 ohm dummy load and verify that the SWR over the entire frequency range from 6MHz to 30MHz is low, less than 1.2:1. If you do not have an analyser, then use your transceiver and check the VSWR on 80/40/60/30/20/17/15/12/10 metres and make sure it is flat across the entire range. Then conduct a mechanical check of the antenna, make sure that the six flexible loop bolts are tight, that the pivot bolt is tight, that there is a good RF connection. With a 12V power supply verify that you can move the antenna's actuator from its inner electrical limit to its outer electrical limit easily. The motor current should only be a few hundred milliamps, and should be essentially constant over the entire range. This test will show that the actuator is free and operating without excessive friction. Let me know how you get on.

Adrian 5B4AIY


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