| I noticed some 'noise' during a checkout of the audio panel/intercom. It appears to be comming from the cooling Fan on the |
|
| EFIS, with only one system turned on it's bearely detectable. however with both systems on, it's more noticable and begins to |
|
| 'harmonize lite a twin with it's props out of sysc. I began today by checking the wiring on the back of the audio panel, and found |
|
| that there were several pins that were frayed and shorting to each other. The root problem was that I used 20 ga. and should |
|
| have used 22 ga, when stripping the wires, they stripped to 22 ga, but the crimps on the pins did not catch the insulation, and as |
|
| tension got put on the harness the insulation and the outer wires pulled away from the crimped wired and created a problem. I |
|
| made another trip to town and picked up some more 22 ga shielded twisted pair, and spent the rest of the day remaking the J2 |
|
| harness. While i'm very happy that this problem was found before the panel was mounted in the a/c (which would have been a |
|
| bugger to fix) sadly it did not eliminate the noise probllem. the only other 'issue' with the OP Tech is that the Main GPS received |
|
| 'invalid messages' Talking to Mark @ Op tech he explained that this was most likely because I'm indoors under a tile roof. So |
|
| today I picked up 40' of RG58 to make a cable long enough to get the GPS antenna outside so it can see the sky. Tomorrow's |
|
|
|
