Colin,
At one time, the rule was that an unlicensed transmitter should not radiate
more than 100 feet, so any combination of power or antenna that caused its
range to exceed 100 feet constituted illegal operation. Today, the issue
has been muddied by the permission of "low power" operation on the FM band,
but I'm pretty sure that a license is still required for such operation.
I'm guessing that the 7-watt transmitter under discussion is marketed for
"low power" operation, which probably won't let you off the hook if the FCC
catches you operating one without the correct license. However, I doubt
that they'll be beating on our doors unless they get complaints, which is
highly unlikely. Even then, from what I've heard, they give you several
warnings before they lower the boom.
Steve
----- Original Message -----
From: "Colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 13, 2013 04:53
Subject: Re: FM Transmitter Issues And Questions
> ok, if he shouldn't need to be told, then why are you taking it upon
> yourself to tell him?
> why is there this perspective that these things are some how illegal? and
> who said you can't use properly tuned, or even gain antennas on them?
> Please note the area of the appropriate regulations that state this before
> assuming it's illegal because you think it ot to be.
> Obviously C crane and other companies wouldn't be allowed to sell these
> units on the open market if they were illegal...especially since you say
> the
> FCC watches FM broadcast so closely. I highly doubt, if these units were
> illegal in anyway, or the after market antennas were illegal, that
> something
> so obvious would slip past the regulatory body that is keeping such a
> close
> eye.
> Not to mention keeping a close eye on a small internet email list hi hi.
> that's just paranoya...but I digress.
>
> 73
> Colin, V A6BKX
> ----- Original Message -----
> From: "Michael Thurman" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, March 12, 2013 5:41 PM
> Subject: Re: FM Transmitter Issues And Questions
>
>
>>I would be incredibly careful saying how much power and what antenna you =
>> are using unless you want a visit from the fcc as they do take fm =
>> broadcast stuff very seriously. please be careful, and as a ham you =
>> should no tneed to be told to be careful
>> On Mar 12, 2013, at 10:26 AM, Butch Bussen <[log in to unmask]> =
>> wrote:
>>
>>> With mine on high hpower, not sure if we have the same transmitter, =
>> got=20
>>> mine on ebay, my ifr shows it putting out 8 watts, and on my quarter=20=
>>
>>> wave whip on my metal roof, I get around 5 mmiles.
>>> 73
>>> Butch
>>> WA0VJR
>>> Node 3148
>>> Wallace, ks.
>>>=20
>>>=20
>>> On Tue, 12 Mar 2013, Ron=20
>>> Canazzi wrote:
>>>=20
>>>> Hi Jim,
>>>>=20
>>>> As of yet, I haven't done the range check. I am still running it on =
>> 1 watt
>>>> because it is fine at that level. Some day when I get real brave, =
>> I'll put
>>>> it up to 7 watts and walk around the neighborhood to see just what it =
>> can
>>>> do. Who know, I might even hook it up to my Channel Master scanner =
>> antenna
>>>> on high power for a short time to see if it actually reaches to the =
>> tenths
>>>> of miles in range--though I must be careful about the match on that =
>> older
>>>> antenna. I am running it at 87.5 mHz--the lowest frequency that most =
>> FM
>>>> receivers will receive so as to not arouse any outside interest =
>> <laugh>.
>>>>=20
>>>>=20
>>>>=20
>>>> ----- Original Message -----
>>>> From: "Jim Gammon" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Tuesday, March 12, 2013 1:29 AM
>>>> Subject: Re: FM Transmitter Issues And Questions
>>>>=20
>>>>=20
>>>> Hey, that's great. Have you done a range check to see how far
>>>> you can hear your signal? Jim WA6EKS
>>>>=20
>>>> ----- Original Message -----
>>>> From: Ron Canazzi <[log in to unmask]
>>>> To: [log in to unmask]
>>>> Date sent: Tue, 12 Mar 2013 00:47:38 -0400
>>>> Subject: Re: FM Transmitter Issues And Questions
>>>>=20
>>>> Hi Group,
>>>>=20
>>>> Thanks for all the suggestions. I have pretty much solved the
>>>> issue by
>>>> moving the transmitter as far away from the computer and speakers
>>>> as
>>>> possible. I think I might have to get it a bit further because
>>>> at times I
>>>> still hear a bit of hum, but at least about 90% of the issue is
>>>> gone. I
>>>> have a 6 foot audio cable. Maybe I should get 1 a bit
>>>> longer--perhaps 8 or
>>>> 10 feet.
>>>>=20
>>>>=20
>>>> ----- Original Message -----
>>>> From: "Jim Gammon" <[log in to unmask]
>>>> To: <[log in to unmask]
>>>> Sent: Monday, March 11, 2013 11:29 AM
>>>> Subject: Re: FM Transmitter Issues And Questions
>>>>=20
>>>>=20
>>>> Pretty sure there is no conflict between WiFi and the FM
>>>> transmitter. I would be surprised if that was the case. Jim
>>>> WA6EKS
>>>>=20
>>>> ----- Original Message -----
>>>> From: Curtis Delzer <[log in to unmask]
>>>> To: [log in to unmask]
>>>> Date sent: Mon, 11 Mar 2013 07:39:35 -0700
>>>> Subject: Re: FM Transmitter Issues And Questions
>>>>=20
>>>> it might be picking up the pulsations from your WIFI setup. try
>>>> temporarily turning that off and see if it goes away.
>>>> if it does, try using the transmitter further away from your
>>>> modem? router?
>>>>=20
>>>>=20
>>>> At 11:05 PM 03/10/13, you wrote:
>>>> Hi list,
>>>>=20
>>>> Since this is one of the lists where I got information about an
>>>> FM
>>>> transmitter for feeding audio from my computer to FM receivers
>>>> through out
>>>> my house and property, I thought I would inquire here again.
>>>>=20
>>>> I have purchased the Sansonic FM transmitter that someone
>>>> referenced on this
>>>> list a few months ago. It does a real nice job with meeting my
>>>> requirements
>>>> of clear and clean signals through out my property. However, I
>>>> have run
>>>> into one problem. I have the transmitter fairly close to the
>>>> computer from
>>>> which I am running the audio. It is about 4 feet away from the
>>>> computer. I
>>>> am getting a pulsating hum through the computer speakers when the
>>>> transmitter is operating. The transmitter runs from 1 to 7
>>>> watts. In light
>>>> of the issue, I don't dare put the power any higher than 1
>>>> watt--and I
>>>> really don't need to anyway.
>>>>=20
>>>> What can I do to solve this problem? Any help would be greatly
>>>> appreciated.
>>>>=20
>>>>=20
>
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