Hello, I am new to the amateur radio scene and I am needing help with an issue I have come across. I have a Radioddity DB20-G installed in my personal truck and I have come across an issue where I will get intermittent static coming across my radio and I've figured out it is coming from my bluetooth radio, mostly when my radio is trying to pair with my phone then it just becomes intermittent. I have already placed two ferrite beads on the antenna cable where it plugs into the DB20-G and it helped a little bit but my bluetooth will overpower it still. Any help would be appreciated
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GMRS Interference
- Thread starter WSEQ397
- Start date
What mix ferrite are you using?
You can read up how that can make a difference here Mix selection but i don’t think that is going to help. .
Verify your feedline has good shielding , connections tight, and the radio is properly installed.
You can read up how that can make a difference here Mix selection but i don’t think that is going to help. .
Verify your feedline has good shielding , connections tight, and the radio is properly installed.
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Chasing down interference can be a hassle at times.
How are you powering your DB20-G? I know they come with a cigarette lighter adaptor but those can pickup interference from the vehicle pretty easily. The best is to run the power lead from the radio directly to the battery and the ground lead directly to a chassis ground.
I usually use ferrite beads on the power leads to the radio and also on the cable that connects the alternator to the battery. I put a clamp on ferrite bead on each end which has eliminated most of the interference. I still get an occasional hum when transmitting, but it doesn't happen often enough to worry about.
How are you powering your DB20-G? I know they come with a cigarette lighter adaptor but those can pickup interference from the vehicle pretty easily. The best is to run the power lead from the radio directly to the battery and the ground lead directly to a chassis ground.
I usually use ferrite beads on the power leads to the radio and also on the cable that connects the alternator to the battery. I put a clamp on ferrite bead on each end which has eliminated most of the interference. I still get an occasional hum when transmitting, but it doesn't happen often enough to worry about.
I honestly don't know what mix it is. I got it from my amatuer ham radio friend.
I am powering the radio using the cigarette lighter for right now. I guess I should go ahead and change the way I power it and see if that fixes it. I'll see about using ferrite beads on the power leads as well. I am also working with a 2001 dodge and from all the forums and technicians I've talked to say the truck itself is bad about producing "noise" which causes problems with how the truck runs and drives for a lot of people. I will make a post on if I end up getting rid of the static on the radio when I change how the radio is powered.
mmckenna
I ♥ Ø
Good advice above.
Powering off cigarette lighter sockets can be problematic. The wiring for that socket can be bundled in with wiring for the rest of the vehicle and that can act as an easy path to get noise into the radio.
If the ferrites on the coaxial cable helped, you may also be getting some noise in on that.
Industry standards usually involve powering the radio directly off the battery, as suggested above. That gets you the cleanest power possible. So, positive lead to the battery positive, make sure you have a fuse close to the battery.
Negative lead for the radio should be grounded to the vehicle body somewhere close to the radio. Don't run it all the way back to the battery.
Make sure your power leads and coax are routed away from other vehicle wiring as much as possible.
And, unfortunately, Dodge vehicles are known to be "RF noisy". I may take some work beyond what is above to get it cleaned up.
