From: Richard Rager (kb8rln@penguinmaster.com)
Date: Fri May 21 2004 - 13:52:19 EDT
On Fri, 21 May 2004, lsi wrote:
> > The 3D map of all tags in range is fascinating, but I suspect there
> > may be some issues with building usable hardware into a concealable
> > form. We're assuming "Badguy gets onto a train to scan" situation.
> > If I can place my equipment ON the train beforehand, my life (as the
> > scanner) gets dramatically easier.
>
> A lone wolf might have a hard time managing the complexity. A team
> of people might be more effective - a widely deployed, State-operated
> system would have no trouble, however.
>
> > At least until someone brings his Pocket Pal RFID Jam-O-Matic 2000 to work.
>
> This will be classified as a crime (and may be already).
>
All of the RFID systems I have seen are under part 15 of the FCC rules.
If you are looking at 15.5(d) (see below) this rule then your are right,
almost. The bigest problem is enforcement. Any thing with RF is federal
not state. If you want to have some fun and do not mind messing with law
enforcement and paying an attorney.
First show court where the state does not have jurisdiction in the case.
Let the prosecutor refile in federal court.
Now is federal court bring Title 47 with you. show the court the first
page that said (paraphasing) The FCC has all jurisdiction of RF
stuff, except CB.
The people who write these bills need to learn to write in plain language
you need to read about 600 words to learn what I said in 10. Think of the
trees we would save.
Maybe you could get the RFID to use 28 Mhz. <<-- Good Luck CB is there :-)
After all this put out a amateur radio license with said your have primary
privileges on this band. By definition RFID tags part 15 are not primary
users of the band. Under part 15 you can not cause harmful interferences
and must accept all interference.
Most likely you a letter saying you should not do and can you use
another frequency. Just a note I can transmit on 440Mhz up to 1500 watts
and with a beam antenna the RFID chip will not have a chance. 35 watts
would do it also. There are some other rules that could apply before
using 1500 watts. Hams use that high power for moon bouncing RF.
Disclaimer: I am not an attorney, this is not legal advice.
Enjoy,
Richard Rager
[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2001]
>From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.5]
[Page 671]
TITLE 47--TELECOMMUNICATION
CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
PART 15--RADIO FREQUENCY DEVICES--Table of Contents
Subpart A--General
Sec. 15.5 General conditions of operation.
(a) Persons operating intentional or unintentional radiators shall
not be deemed to have any vested or recognizable right to continued use
of any given frequency by virtue of prior registration or certification
of equipment, or, for power line carrier systems, on the basis of prior
notification of use pursuant to Sec. 90.63(g) of this chapter.
(b) Operation of an intentional, unintentional, or incidental
radiator is subject to the conditions that no harmful interference is
caused and that interference must be accepted that may be caused by the
operation of an authorized radio station, by another intentional or
unintentional radiator, by industrial, scientific and medical (ISM)
equipment, or by an incidental radiator.
(c) The operator of a radio frequency device shall be required to
cease operating the device upon notification by a Commission
representative that the device is causing harmful interference.
Operation shall not resume until the condition causing the harmful
interference has been corrected.
(d) Intentional radiators that produce Class B emissions (damped
wave) are prohibited.
[Code of Federal Regulations]
[Title 47, Volume 1]
[Revised as of October 1, 2001]
>From the U.S. Government Printing Office via GPO Access
[CITE: 47CFR15.105]
[Page 688]
TITLE 47--TELECOMMUNICATION
CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION
PART 15--RADIO FREQUENCY DEVICES--Table of Contents
Subpart B--Unintentional Radiators
Sec. 15.105 Information to the user.
(a) For a Class A digital device or peripheral, the instructions
furnished the user shall include the following or similar statement,
placed in a prominent location in the text of the manual:
Note: This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate
radio frequency energy and, if not installed and used in accordance with
the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is
likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
(b) For a Class B digital device or peripheral, the instructions
furnished the user shall include the following or similar statement,
placed in a prominent location in the text of the manual:
Note: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more
of the following measures:
--Reorient or relocate the receiving antenna.
--Increase the separation between the equipment and receiver.
--Connect the equipment into an outlet on a circuit different from that
to which the receiver is connected.
--Consult the dealer or an experienced radio/TV technician for help.
(c) The provisions of paragraphs (a) and (b) of this section do not
apply to digital devices exempted from the technical standards under the
provisions of Sec. 15.103.
(d) For systems incorporating several digital devices, the statement
shown in paragraph (a) or (b) of this section needs to be contained only
in the instruction manual for the main control unit.
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