2 radio interference.

Discussion in 'CB Radio Forum' started by Rooster1291979, Mar 5, 2018.

  1. Rooster1291979

    Rooster1291979 Road Train Member

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    Running a high power connex and a mid powered stryker. Using monkey made antennas for both and 18' of mini 8 for each. Antennas have dedicated non stock perches on opposite sides of the truck. Actual radios are about 2' apart and external speakers are on opposite sides of the cab.

    Every Time I key up I'm getting bleed on both radios. Unless I squelch so high the radio may as well be off.

    Any ideas how to run this better?
     
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  3. Ridgeline

    Ridgeline Road Train Member

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    Get rid of one radio
     
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  4. Rooster1291979

    Rooster1291979 Road Train Member

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    Helpful....
     
  5. Ridgeline

    Ridgeline Road Train Member

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    Well not to disrespect you dude, but those radio being that close will never work.

    These are cbs, they are not specialized radios setup for this, and frankly that would take a lot of money and still not preform as you want it to,

    But I have to ask, why two radios?
     
  6. Rooster1291979

    Rooster1291979 Road Train Member

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    They do work as long as the power is turned down and squelch is set right. It does sometimes get interference depending on location and I'm back to adjusting knobs. The guys that are making it work have a very similar setup to mine, I just can't find the one different thing they do that I don't.

    I run 2 radios on large od projects. Blade runs with 3 drivers and 9 to 12 escorts. Each team has its own freq and the group uses a separate freq. We run usually within 3 miles of eachother, but bunch together to make turns to share resources. Mainly escorts to hold traffic. We also, depending on location, run together with police escorts.
     
  7. Ridgeline

    Ridgeline Road Train Member

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    Ok I didn't get a chance to go through this, sorry.

    Here is what I think.

    First off these radios may not be the best to use, they both have a wide range on the front end and poor middle or intermittent frequency design.

    There are a few things that you can do.

    First make sure that the external speakers are not picking up any rf when you key up. This could be one problem hidden.

    Second get the radios aligned right, rabbi can step in and suggest someone.

    Third and this is a radical approach which could work if one radio is only on one channel and the other is another at the end of the spectrum, there are filters you put in line with the radio that are very narrow band pass filters, they ain't cheap and they will work on transmit too. This will give you a very narrow frequency that your receiver will not hear all the other frequencies.

    I have trucks doing the same thing so I get what you are doing, just sorry I didn't get back to you quick enough.
     
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  8. Rooster1291979

    Rooster1291979 Road Train Member

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    I moved the speakers further away from the radios and installed a noise filter on both power supplies. This helped a good bit today. I'm going to replace the stryker with a vhf in the very near future. Hope that will make it better.

    Thanks for the tips.
     
  9. jessejamesdallas

    jessejamesdallas Road Train Member

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    OK...sounds like you need two radios so you would be able to monitor 2 channels at the same time....Why not just have one radio with a scanning feature that would let you scan between just the two channels? I'm sure y'all aren't talking on both radios at the same time anyway...

    Cobra 29 lx has a scanning feature that will let you monitor just 2 or 3 channels, (there's several others as well) or however many you want...Just turn the squelch up on the channels your scanning, and soon as someone keys up, the scanning will stop on that channel so you can answer back...

    Be allot less headache with just the one radio...or am I missing something here?
     
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  10. Rooster1291979

    Rooster1291979 Road Train Member

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    Thanks for the suggestion. Unfortunately that wouldn't work for me.

    Imagine the radio is scanning between 2 channels. One of the other drivers keys up and is asking about the route, or any subject really. The radio locks to that channel while he is speaking. At the same time my pole car strikes a bridge and starts yelling "struck the bridge, all stop" and I didn't hear because the radio is locked to the group.

    I usually run as the front truck so I need to be able to communicate with everyone immediately.
     
  11. Ridgeline

    Ridgeline Road Train Member

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    VHF is your best bet.

    I have to also explain something, it is really hard to hear what the problem is through a forum. Some of us can just listen for a few seconds and point you into the direction you need to go in to fix these problems.

    For example there is a thread about SWR being high, well the OP is ignoring advice and looking for an answer he thinks is right. Without being there, all he is doing is wasting time.
     
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