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FCC Sets Date for Medical Devices on 70 cm

Discussion in 'Amateur Radio News' started by KB2KAB, Jan 30, 2012.

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  1. KF7PCL

    KF7PCL Ham Member QRZ Page

    If you read the above posts, most people are more concerned by this device malfunctioning because RF from outside sources.
     
  2. W8NSI

    W8NSI Ham Member QRZ Page

    really poor choice all the way around

    They might be in for surprises around some military bases. Long range air search radar used to operate in the 400 mhz band too. Imagione what some megawatt pulsed radar might do to that implant.
     
    Last edited: Feb 3, 2012
  3. W6RZ

    W6RZ Premium Subscriber QRZ Page

  4. WA4OTD

    WA4OTD Ham Member QRZ Page

    I agree, I think this one is no concern for us. The handwriting seems to be on the wall for 70CM, everything is being shared in that band.

     
  5. NK4K

    NK4K Ham Member QRZ Page

    As I mentioned to the FCC, we have a 30 year old data network on 440.750 and that's smackdab in the middle of one of these secondary allocations. We run 100 watts into 10 element beams. In certain cases, these units shoot across hospital and medical campuses in three states, because the hospitals are part of the disaster recovery network. Med-evac choppers fly by the towers.

    We are not the only hams on these frequencies either.

    It is virtually impossible to predict what effects may arise from this mismanagement of spectrum. You can't put milliwatt control systems in the bath with kilowatt transmitters unless you enjoy erratic, unpredictable behavior.

    After spending countless dollars and years perfecting what we do with the equipment, I and my benefactors are reluctant to make any changes, ESPECIALLY in light of the fact that I am not allowed to climb the tower, and the certified guy that is charges $500 per day.

    I've left out 90% of it to prevent reader boredom.
     
  6. W8ED

    W8ED Ham Member QRZ Page

    Well, after reading the details....Looks like about a BILLION to ONE chance of any problems caused by RF interference. Don't really see a problem for us as the ham community or the potential wearer of the device. Further, these devices are allocated on a secondary basis as well. Keep in mind that WE are also secondary to govt services on 70cm as well....Something to think about as well, NC5P brings a good point....keyfobs, garage door openers,weather stations with wireless displays, as well as many other devices that we all don't even think about are in use all over the place, operate in the same frequency range.......Just food for thought.

    73, Ed , W8ED
     
  7. WA3RA

    WA3RA Ham Member QRZ Page

    I suggest you look up the AN/FPS-115 system; Pavepaws. Average output power is around 150 kilowatts. If you get close enough to one, spread sprectrum or not, they essentially trash the entire band that they operate in. Heaven help the poor person using one of these devices near one of these radar installations.
     
  8. W6WO

    W6WO Ham Member QRZ Page

    I am unconcerned about these devices causing us interference but many of us are all potential patients. It is reasonable to ask for evidence that they are immune to legitimate transmissions from primary users. One wonders how the FCC will deal with complaints. Ron W6WO
     
  9. N1ART

    N1ART Guest

    radar love?

    yeah exactly!, My friend lives near one of those and all he hears is sputtering on the 440 band,Ouch!
     
  10. WD5JOY

    WD5JOY Ham Member QRZ Page

    I wanna know more about that 50 watt / 440MHz power limit. Here I be on "the corners" of four states and running a "tad more than 50 watts" directed into MooNexico on a daily basis! Hello Army guys in NM .... can ya' hears me?! Oh my! I'm a bad ham - ignorant of "the rules AND the regulations". I'm pretending I never read that part!:p
     
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