I have an Icon IC-730 transcever. I have a hunk of RG58U running out my bedroom window from the IC-730. There is about 75’ of wire connected to the center conductor and the wire is thrown over a tall tree and tied off to a fence post with nylon cord. The shield of the coax is floating. The radio acts like there is no antenna connected to it on receive. I plain on putting up a better antenna when funds are available. How do I fix this one to get the receive working?
The transmitter works fine. full 100 watts into my dummy load, modulation is fine on both side bands and am. I have a Icom IC-R3 ht. I can hear the modulation on the IC-R3. All I hear on the IC-730 receive is static unless the test transmitter is almost on top of the IC-730 with the wire antenna connected. I had my room mate sit in the radio shack and listen to the IC-730 on 10 meters while I transmitted on my RCI-2950 in the mobile parked in my parking space. The RST was barely under 2 by 2. I also did a 10 meter QSO with a local station from the mobile while my room mate was listening on the IC-730. He barely heard me but not the station across town.
PS: I did check the center conductor on the coax. It is fine.