rvator51
Well Known Member
I posted this on the Dynon forum but am also posting here as I am trying to troubleshoot this tomorrow so I can fly this weekend so apologies for the double posting:
My COM is being reported as weak, broken, missing every other word by pilots in the air and Unicoms on the ground. Its a new installation with RG-400 cable and a new VHF antenna from Delta Pop.
I hooked a SWR meter to it today and got the following readings:
118.000 Mhz 8.2 w power, -1.15 reflected power, 2.2 SWR
127.000 Mhz 2.6 w power -.66 w reflected power, 3.0 SWR
136.000 Mhz 5.5 w power 1.22 w reflected power, and 2.8 SWR
Is it normal to have such a big power drop midway through the frequency range? Is there anything these numbers say about possible causes for weak transmissions or area to troubleshoot?
I am using a new Zulu 2 headset and also tried with a DC headset.
My COM is being reported as weak, broken, missing every other word by pilots in the air and Unicoms on the ground. Its a new installation with RG-400 cable and a new VHF antenna from Delta Pop.
I hooked a SWR meter to it today and got the following readings:
118.000 Mhz 8.2 w power, -1.15 reflected power, 2.2 SWR
127.000 Mhz 2.6 w power -.66 w reflected power, 3.0 SWR
136.000 Mhz 5.5 w power 1.22 w reflected power, and 2.8 SWR
Is it normal to have such a big power drop midway through the frequency range? Is there anything these numbers say about possible causes for weak transmissions or area to troubleshoot?
I am using a new Zulu 2 headset and also tried with a DC headset.