1. You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.

XM Radio - blow out the front end of the receiver

Discussion in 'General Ham Radio Discussion' started by archjeb, Jan 12, 2018 at 5:18 AM.

  1. archjeb

    archjeb
    Expand Collapse
    Member

    Joined:
    Jan 26, 2014
    Messages:
    27
    Likes Received:
    5
    Folks,

    I noticed this past week that I blew out the front end of my XM/Siruis receiver in my truck. It might be just coincidence, but by 2m/70cm antenna is only a few feet away from the XM radio receiver.

    Has anyone experienced this? Since XM is up in the 2GHz range, I wouldn't have thought that this would have been an issue; but again this might all be coincidence.

    -J


     

  2. Tallman

    Tallman
    Expand Collapse
    W9WDX Amateur Radio Member, KW4YJ EXTRA class

    Joined:
    May 1, 2013
    Messages:
    2,057
    Likes Received:
    1,018
    Some times a strong primary signal that is not in the usable frequency range of the device can blow circuitry. A small transistor can get wiped out very easily.
     
    CrazyD and Captain Kilowatt like this.
  3. Captain Kilowatt

    Captain Kilowatt
    Expand Collapse
    Professional Amateur
    Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    14,436
    Likes Received:
    5,760
    YUP! I took out the front end of an Alinco DJ-160 2m hand held using it inside the antenna tuning hut at a 1 Kw AM broadcast transmitter site. Being only a foot or two away from the large tuning coils probably didn't help it. :whistle:
     
  4. archjeb

    archjeb
    Expand Collapse
    Member

    Joined:
    Jan 26, 2014
    Messages:
    27
    Likes Received:
    5
    Well again it might have been coincidence...but its seems likely that TX on my mobile rig did this. I'm wondering what other folks have done to protect against this if you have an XM radio antenna up on top of the truck and you have a HAM antenna up there too. I imagine the LNA on the XM receiver doesn't have a lot of narrow 'Q' Band pass filters on the front of it to project it anyhow...

    -J
     
  5. kopcicle

    kopcicle
    Expand Collapse
    Well-Known Member

    Joined:
    Feb 17, 2016
    Messages:
    171
    Likes Received:
    113
    I've rewound L41 twice...
     

Share This Page