Anyone help with bleeding

[Boone 985 in the buckeye]

Not sure about this hopefully someone can get me some insight the kids say when they have there Xbox on with their headsets i am coming through them really dont wanna add stuff to their headsets to try to stop it my radio seems to have a clear signal scope looks great is there anything i can do to stop it i know when putting the hammer down amplified speakers like computer speaker seem hard to stay out of i am also running a low pass filter behind my radio everything is also grounded anyone help me on this

 

[Robb]

Proximity is a problem. Running any amp is 10X a problem. Running a dirty radio with an amp is 100X a problem. Guess we have to take your word that the radio is clean and unmolested. Have any scope and radio chassis pics to see here? 54mhz trap circuit? AM limiter transistor? Modulation mods?

Proximity is going to be hard to beat no matter what you do. Grounding your system w/o creating a ground loop is essential too. Even with all those considerations, there is no guarantee of a win. I just kick amps to the curb, run a squeaky clean radio, and best antenna that I can up high. Works for me. Don't have or want an Xbox, but I do have several computers and sound systems w/o any problem. Except the radio closest to one computer - because of proximity.
EDIT: In addition, not all consumer electronics does well with RF. In fact few of them has provisions in circuitry to deal with it.

 

[RT431]

An RF choke at the base of the ant could help?

 

[2NC995]

What radio and amplifier? How is it set up?

 

[Shadetree Mechanic]

A choke at the antenna feed point will eliminate the common mode current on the coax braid. I was turning on and off the china cabinet light when I keyed up and a feed point choke was the fix.

 

[Ranch55]

An RF isolator choke would be my answer also.
The coax braid shield will act as part of the transmitting antenna without a choke.
I had same issue about 4 years ago with with my satellite tv receivers whenever I used any amplifier.
I installed a DX Engineering RF Isolator at the feed point on both of my antennas and the problem disappeared.
Same thing with a good friend of mine computer wireless keyboard and other equipment.
He installed rf isolator choke at feed point of his antenna at my suggestion, and his "bleedover" issues also went away.

 

[w9cll]

Turn the amp off? Move things around? Move the Antenna? Get a WII?

 

[Shadetree Mechanic]

It might also be a good idea to check out your station ground to make sure it is not an "unground". The requirements for AC/DC ground and RF ground are somewhat different. Ground loops can cause problems too.

http://www.radioworks.com/nbgnd.html

 

[Boone 985 in the buckeye]

I appreciate all the help and suggested stuff the amplifier is a jb2000 i assumed it would be better than the d&a varmints or macos ive ran since going from sweep tubes to tranmitting tubes i think thats right? Now when u say rf choke at antenna i coiled coax a couple times at that point is that what u are talking about? I will have to figure out the ground loop i ran a rod outside put a ground block on the window seal and just ran wires to the cases from that i did also run a lowpass filter behind the radio i have never acually seen the radio on a scope myself wouldn't know what to look for anyway lol i do have a ham buddy who looks at signals while people are talking spectrum anilizer maybe? Said it looks good i just take pride of a clean sounding rig instead of some this is really bothering me if it messing with the kids xbox and computer speakers am i also getting the neighbors i gotta get it figured out possibly a bandpass filter?

 

[Boone 985 in the buckeye]

What radio and amplifier? How is it set up?

2995dx jb2000

 

[Shadetree Mechanic]

The choke at the antenna would need to be about 4 turns of coax about 5 inches in diameter I believe. A low pass filter after the amp might help too.

 

[2NC995]

At those power levels there might be nothing you can do.

 

[Tallman]

An isolation transformer might help more than just a choke.
Proper station grounds are really necessary for proper operation of a radio station. There have been many threads about station grounds and if you read all of those you will be an expert in the matter.

 

[Beetle]

The choke at the antenna would need to be about 4 turns of coax about 5 inches in diameter I believe. A low pass filter after the amp might help too.

A lot depends on what kind of coax you're using. If it's the 1/4" stuff, like RG-58 or RG-8X, a 5" diameter coil wouldn't hurt up to a few hundred watts. Beyond that, there's RG-213 and similar 0.405" diameter cable, which has a bend RADIUS of about 5 inches (meaning a coil diameter not less than 10 inches).

The Xbox probably has a sticker on it saying that might be susceptible to RF from legal, licensed radio transmitters and operators. Try cutting back to legitimate legal power and see if the problem still exists.

 

[xm49north7]

I have the same problem via internet, internet here is by radio antenna, and it is not far from my cb antennas, and yup right in my daughters headphones, every word, Do not think anything will fix this for me. It is not a hug problem, It goes the other way s well, the radio antenna puts 2 s units of noise on the cb as well, so when I want to have a conversation on am, I shut down the internet. Does not effect ssb as badly, maybe one s unit of noise.