If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Magneto/comm interference on TKM MX-R Narco 120 replacement
I just installed a Michel TKM MX 11r which is a direct slide-in replacement
for my Narco 120 Comm. Because I have an intercom, I had to add a resistor to the circuit board. Having done this, I installed the radio in the old Narco tray and tested the radio: Findings: 1/ Comm works great with just power on. 2/ With engine (lycoming O-320 with new mag leads) on at low r.p.m.s, the received audio has interference (very garbled). 3/ Once the r.p.m's increase to about 1500 and beyond, the recieved transmissions seem great. Because TKM is closed, I haven't called the tech rep about this, but could anyone tell me what's happening? Everything else about the Comm seems to be working well. My transmissions to the tower are 5 squared. My Narco didn't do this, so I'm assuming there's something wrong with the radio. Thanks Eugene Wendland |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Narco Com IIA Wiring connections? | Rod | Home Built | 4 | October 12th 11 07:08 AM |
RF interference issue again (esp. for E Drucker and Jim Weir and other RF wizards) | Snowbird | Home Built | 78 | December 3rd 03 09:10 PM |