Home Page
About Us Page
Links Page
Contact Us Page
Forums Page
Users Pages
Guestbook Page
Search Site Page
Project Page
Home | Profile | Active Topics | Active Polls | Search | FAQ
Save Password
Forgot your Password?

 All Forums
 Main Area
 General Chatter Area
 optimal for RF propagation through body tissue
 New Topic  Reply to Topic Bookmark Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  


1714 Posts

Posted - 13 Apr 2009 :  08:31:39 AM  Show Profile  Visit vk3pa's Homepage  Reply with Quote
If this is fact,.why do we u use hand helds one 432 mhz band.. Just think wot this is doing to ur "brain" es FM must be the worse mode being constant carrier,, be smart dont use h/helds near ur head!!
Another problem is, it is on either side of the ham 70Cm band, so when "Auntie Fanny " comes to visit, check her out for rf interferance to ur 70Cm gear hi

The FCC Proposes to Allocate 20 MHz of Spectrum in 413-456 MHz Band For Implanted Neuromuscular Devices

The FCC has released a Notice of Proposed Rulemaking (NPRM - ET Docket 09-36) seeking
comment on a proposal to allocate 20 MHz of spectrum in the 413-457 MHz band for use by wireless medical devices that could be implanted into the human body and used to restore sensation and mobility to paralyzed limbs and organs. The devices would act as a wireless medical micro-power network (MMN) within the patient. Among the conditions that could be treatable using MMNs include polio, ALS (Lou Gehrig's disease), cerebral palsy, and spinal cord injuries.

The 400 MHz band is targeted because it is optimal for RF propagation through body tissue. The devices would require at least 5 MHz of bandwidth to function and would operate on a low power, secondary non-interference basis. Twenty MHz of spectrum in four band segments are proposed so that the device would have four options in case one
band segment was already in use in a given area. The NPRM seeks comment on the feasibility of four different band segments:

* 413-419 MHz

* 426-432 MHz

* 438-444 MHz

* 451-457 MHz

Comment is also sought on:

* Potential for interference between MMNs and incumbent users

* Service rules (licensed or unlicensed, definitions, permissible communications,
eligibility, etc.)

* Technical rules (power limitations, bandwidth, frequency stability, channelization,
antenna locations
, etc.)

The text of the News Release is available at:
Fred Lloyd, AA7BQ
Publisher, QRZ.COM


1714 Posts

Posted - 15 Apr 2009 :  12:26:40 PM  Show Profile  Visit vk3pa's Homepage  Reply with Quote
THE arrl r doing nort about IT, so when these electronic medical devices r on the market they will go all over the globe es that includes VKland.. in vk we relie on ARRL to proctect the ham band which go through WARC in most cases es we the rest of the world follower the lead of de ARRL.. so now we have to watch our back, i am sure the Rudd Gov will say bugger the hams, Medical use of these freq r more benifical!!
wot's the WIA doing in this reguard11
Go to Top of Page


1714 Posts

Posted - 16 Apr 2009 :  09:13:36 AM  Show Profile  Visit vk3pa's Homepage  Reply with Quote
yes I know its a USA problem but being medical it will come to us sooner than later!!

Currently, the government is primary... we are secondary. If the new devices are approved on the 70cm band as secondary users, what does that make us? Third-tier users or equal priority to the medical devices?

Does anyone REALLY think that if these devices are approved in the 70cm band, that the FCC will put Amateur Radio as a priority to human lives? If there'd be ANY risk of our (ham) radio's interfering with those devices... any risk at all... you can be sure that we'll lose the 70cm band completely.

The problem is... how can we, as amateur operators, complain about losing a band when our sacrifice may save lives (or at least drastically improve the standard of living for people.)don't get me wrong - I'm not happy that I'd lose UHF repeaters, that my ability to cross-band repeat would disappear, etc. I'd love to write a letter to the FCC giving reasons why those devices shouldn't run on 70cm. My problem is, any time I try to compose something, I feel like a selfish child: whining that something I was given for free is being taken away to further medicine.

The flip side is that the UHF band, used by amateur operators, has already been used to save lives in disasters.

I suppose my real problem is that these medical devices aren't going to be given to people who need them... they'll be given to people who can afford to buy them. Some company will make a fortune on these devices (if they're successful.) I'd be "okay" with losing 70cm for these devices IFF the FCC stipulated that the devices using the band would only be "sold" by non-profit organizations, and a certain allotment of them would be given to those in need, regardless of ability to pay.
a tipical W reply in as most W's agree it will happen

Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic Bookmark Topic
 Printer Friendly
Jump To:
Goldfields DX Amateur Radio Group © 2002 - 2022 Goldfields DX Amateur Radio Group Go To Top Of Page
This page was generated in 0.14 seconds. Snitz Forums 2000