Dave Platt wrote:

The first thing that you ought to do, is check the specs and
literature for the WiFi radio (card, access point, etc.) you're
planning to use it with. Find out whether this radio was certificated
(i.e. tested for compliance by the manufacturer) with an antenna
having a gain level of 8 dBi or more.

If it hasn't - if the radio was only certificated with an antenna with
less gain - then you cannot use the MJF antenna with the radio, and
transmit, without violating the radio's Part 15 certification. You
would be transmitting illegally.

The horror...

If the Wifi card has a standard connector it should be OK with an
aftermarket antenna. If it has an oddball connector it must be used
with a specific antenna.

In any case, there is no one enforcing Part 15 compliance in the field.

In article ,
dave wrote:

The horror...

In any case, there is no one enforcing Part 15 compliance in the field.

True... it's rare, and seems to happen only after strenuous
complaints. I *have* heard of it happening, though.

If the Wifi card has a standard connector it should be OK with an
aftermarket antenna. If it has an oddball connector it must be used
with a specific antenna.

That's not the intent of the FCC regulations.

The FCC requires that consumer-type WiFi radios *must* use nonstandard
connectors (for arguable definitions of "nonstandard"). Specifically,
47 CFR 15.203 says:

An intentional radiator shall be designed to ensure that no
antenna other than that furnished by the responsible party
shall be used with the device. The use of a permanently
attached antenna or of an antenna that uses a unique coupling
to the intentional radiator shall be considered sufficient to
comply with the provisions of this Section. The manufacturer
may design the unit so that a broken antenna can be replaced
by the user, but the use of a standard antenna jack or
electrical connector is prohibited... (snip)... the installer
shall be responsible for ensuring that the proper antenna is
employed so that the limits in this Part are not exceeded.

Manufacturers have asked that the "unique coupling" rule be relaxed...
they complain that every time they come up with a new "unique"
connector (e.g. reverse-polarity or reverse-threaded versions of SMA,
TNC, etc.), it rapidly becomes so popular and so easy to acquire that
they have to stop using it and find a *different* new non-standard
connector... lather, rinse, repeat.

The FCC refused to remove this requirement, the last time that the
issue was the subject of a rulemaking (although they did add the above
language which permits a broken antenna to be replaced by the user...
previously even this was essentially forbidden).

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
I do _not_ wish to receive unsolicited commercial email, and I will
boycott any company which has the gall to send me such ads!

Dave Platt wrote:
In article ,
dave wrote:

The horror...

In any case, there is no one enforcing Part 15 compliance in the field.

True... it's rare, and seems to happen only after strenuous
complaints. I *have* heard of it happening, though.

If the Wifi card has a standard connector it should be OK with an
aftermarket antenna. If it has an oddball connector it must be used
with a specific antenna.

That's not the intent of the FCC regulations.

The FCC requires that consumer-type WiFi radios *must* use nonstandard
connectors (for arguable definitions of "nonstandard"). Specifically,
47 CFR 15.203 says:

An intentional radiator shall be designed to ensure that no
antenna other than that furnished by the responsible party
shall be used with the device. The use of a permanently
attached antenna or of an antenna that uses a unique coupling
to the intentional radiator shall be considered sufficient to
comply with the provisions of this Section. The manufacturer
may design the unit so that a broken antenna can be replaced
by the user, but the use of a standard antenna jack or
electrical connector is prohibited... (snip)... the installer
shall be responsible for ensuring that the proper antenna is
employed so that the limits in this Part are not exceeded.

Manufacturers have asked that the "unique coupling" rule be relaxed...
they complain that every time they come up with a new "unique"
connector (e.g. reverse-polarity or reverse-threaded versions of SMA,
TNC, etc.), it rapidly becomes so popular and so easy to acquire that
they have to stop using it and find a *different* new non-standard
connector... lather, rinse, repeat.

The FCC refused to remove this requirement, the last time that the
issue was the subject of a rulemaking (although they did add the above
language which permits a broken antenna to be replaced by the user...
previously even this was essentially forbidden).


They should just worry about the input power to the antenna. So what if
I take radiation off the floor and ceiling to make it go a little
farther sideways? So what if I have a narrow beam in only one
direction? It reduces congestion in the directions it's not pointed in.

I can understand the restriction for FM Modulators or IFB transmitters,
but for a device that shares a band with microwave ovens I think the FCC
better have a hundred higher priorities.

My Aluratek Internet Clock Radio showed up here about a week and a half
ago. www.aluratek.com

The radio requires either a wired or wireless router.Also an ethernet
cable if used with a wired router, connected to a computer.I do own a
Velocity Micro ProMagix desktop computer.I need to buy a router.I like
Linksys products.I think I will buy a Linksys wired router.

I am not interested in doing any WiFi wardriving, driving around for
that purpose.I only drive to the food store and the discount tobacco
store and to a vetirinary supply store for dog food for my little doggy.

A few days ago, I phoned MFJ Enterprises.The lady said my WiFi antenna
is on back order.
cuhulin

You wrote in rec.radio.amateur.antenna:
SNIP
I need to buy a router.I like
Linksys products.I think I will buy a Linksys wired router.




I have a Linksys Model BEFSR41 4 port router that sells for $60
retail that I'll sell to you for $40 plus shipping.

See: http://tinyurl.com/cgkz5b

If you're interested, let me know your zip code so I can estimate the
shipping costs.

Henry WA0GOZ

http://www.engadget.com/2005/11/15/h...-dish-antenna/

joeturn wrote in

oups.com:

http://www.engadget.com/2005/11/15/h...d-a-wifi-biqua
d-dish-antenna/

WOW towards the end of the article, look at the gain from it?
Quote "Then found 14 other WISP APs including town D, 7.8
miles away." end quote.

As for the FCC, my inner self morals tell me to never let
anyone regulate antena theory and or education, sure I'll go
along with freq and power out control but refuse to conform to
antenna regs. Accept for "Height" of course.
This gadjet is impressive, and yes I love Covert WiFi
conections this one is on my list of things to do.
As long as I have a soldering Iron, who needs to
worry about "Connector" types and models hey hey.
Now for the PC flamers? We'll go ahead waist your time at
will.

--
May You reep the poverrty You have Voted for.

--snip2save---------------
I couldn't agree more if I had to. I always whent my own way
with building a BIGGER antenna. Never conciously cared about
subjective law makers frowning on the intellect getting ahead.
Through the use of an antenna. Now why I have a guilty
concious about buying an illeagle linier amp for my cell phone
or wifi? I don't know, always agreed to the morals behind
power limits, but never will concider a better antenna as
"More Power", it's just making better use of the power you
have wich shouldn't even be counted. Come get me and my Big
Dish WiFi setup, Watch out for the Pit Bulls, there are 3 of
them, One of them has AIDS, you guess witch one.


They should just worry about the input power to the
antenna. So what if I take radiation off the floor and
ceiling to make it go a little farther sideways? So what
if I have a narrow beam in only one direction? It reduces
congestion in the directions it's not pointed in.

I can understand the restriction for FM Modulators or IFB
transmitters, but for a device that shares a band with
microwave ovens I think the FCC better have a hundred
higher priorities.




--
Quote "Get SSL VPN services now, KEEP Government OUT of your
business... "