The facts: Rig: Jupiter with Auto Tuner Antenna: 40M dipole at about 20 feet. Coax: 100 Feet of RG8X Keyer: MFJ Memory Keyer Over the weekend, we had some horrendous rain storms. This is the first ti
DAVE, I HAVE HAD THAT PROBLEM IN THE PAST ES FOUND IT TO BE "RF" AND/OR "FEEDBACK" FROM A DETUNED ANTENNA (DUE TO WX SITUATIONS)! A BETTER GROUND (ACTUALLY NOW 2) ES TOROIDS AROUND CERTAIN CONNECTING
Dave, It certainly sounds like RF getting into the radio! Sometimes good grounding helps, but it is often even more important to find out how the RF is getting there and stop it from doing so. The po
Fellas, Interesting. Yesterday for the first time, My Orion II reflected the same symptoms. Howevewr it was at the 35 watt level that my transmitter locked on. It required a power off to stop it. I r
I had the same issue with my Pegasus, but a Radio Shack clip-on torroid at the coax input fixed it, no reoccurrences. Try that. And see what you can do about a good earth ground. Try a piece of the w
I had a problem with my O1 & O2 with the TT 706 mic. Key stuck and RF in the audio. I found that when I pointed the beam right over the shack the problems started. I was able to eliminate almost all
Thanks to all for your suggestions. It seems that this is a fairly common issue. Here are the things I've gleaned. 1) Antenna, albeit resonant, being so close to the shack (20 feet overhead) may be a
Off center fed antennas are particularly poor about putting RF down the outside of the coax. That's because the two halves of the antenna being different lengths are coupled to the feed line unequall
One thing I would add: I found RF getting into me O2 primarily through the headphone connector and the CW paddles connector on the back panel. Ferrites on each fixed the problem I had no problem with
Author: Robert & Linda McGraw K4TAX <RMcGraw@Blomand.Net>
Date: Mon, 20 Mar 2006 13:11:41 -0600
One of the issues I see over and over is the lack of understanding about grounds. Somewhere along the line of ham radio linage someone once said that we must have a ground for the station to operate
FT-240-43 works for most HF and VHF applications, for the lower end of HF and BCB use FT-240-77. Same size, different mix. They're not cheap ($9.00 each), but they cure heavy duty problems that nothi
Bob, You are correct. There does seem to be a lack of understanding about the importance of a ground, why or when it's needed, or what constitutes a good ground. The concept for the requirement for t