I've recently built a ubitx and hooked it up to a GR5V antenna that I borrowed from a member of my local radio club. This evening, I was working with a friend of mine who lives three blocks away to test the rig, but ran into some interesting problems.
When he transmits, his signal comes in very loud, but his voice is garbled. If I move a few kHz around the frequency that he's transmitting on, the pitch of his voice varies, but it remains garbled. It sort of sounds like the teacher from Charlie Brown crossed with a robot from an 80s kids movie, and I can't make out any of the words that he's saying.
If I transmit, he gets a similar effect, wherein my voice is loud but very garbled, and comes along with a high pitched carrier that he can hear whenever I'm transmitting.
For both tests, we were on 20M, around 14.247MHz. The antenna that I'm using is very homemade, and it probably isn't mounted high enough off the ground, but the fact that I'm hearing the signal loud and clear, but that it's garbled makes me think that the problem is with my radio rather than with the antenna configuration.
What can I do to troubleshoot this issue?
I've attached a couple of recordings of the problem. Hopefully somebody recognizes the problem from listening to them.
Thanks,
VA3JFZ
