[BC] LPAM (was Smallest AM Radiator/TIS)
Robert Meuser
Robertm
Wed Jul 19 13:18:13 CDT 2006
Scott, you really don't need more power - just a bigger antenna.
R
Bailey, Scott wrote:
>Mark,
> Your doing a good thing. LPAM is a good thing, and if the commission
>was convinced that operators would behave themselves, they could raise
>the power limits on Part 15 AM to 1/2 watt or maybe 1 watt. From all I
>hear, the Rangemaster 1000 is a great transmitter, and with good CRL,
>Orban, or Omnia Processing, it sounds just as good as my 1 KW daytimer,
>with uses a Omnia 3. One half watt on one of those Rangemasters will do
>more than what people think they will!
> I thinking about starting a LPAM for our subdivision called
>"Cambridge Farms", just outside Gallatin, TN. We have a property manager
>and subdivision association over our subdivision, and I'm going to bring
>it up in our next board meeting. I will use it to get out information
>and neighbor events to property owners. We have nearly 750 homes in
>Cambridge Farms. My music format will be all 80's pop/CHR of the 80's,
>with some 70's.
> People should consider LPAM or doing Part 15 FM. The big boys are
>policing the FM band too heavy, but act as they could care less about
>AM.
>
>Scott
>
>-----Original Message-----
>From: broadcast-bounces at radiolists.net
>[mailto:broadcast-bounces at radiolists.net] On Behalf Of mark at shander.com
>Sent: Wednesday, July 19, 2006 12:25 PM
>To: Broadcasters' Mailing List
>Subject: RE: [BC] LPAM (was Smallest AM Radiator/TIS)
>
>Hi All,
>
>I've been helping non-profit stations in Arizona serve their community
>with Part 15 stations. The one I work with in Fountain Hills, Arizona
>reaches the small community there fairly well with a single
>transmitter, and they just added another at the local church to help
>bring services to people who physically can't attend.
>
>I also set up streaming for them - they have listeners around the globe
>and are able to use a content distribution network that allows them to
>reach people who carry PDA's just like people used to carry portable
>radios. I thought the number of people who used computers to listen to
>local radio wasn't high until I saw the station's statistics that
>include the "client" used to connect. That helps identify the device
>being used to receive a stream, whether it's a computer or PDA.
>
>I think that while LPAM power levels are an important topic, I think
>the licensing issue vs. non-licensed is even more important.
>
>Licensed station operators are likely to feel they have something "at
>risk" when content breaches accepted community standards.
>
>I believe a licensed, low power AM class solution is important, but I
>think making improvements in license acquisition needs to go along with
>that. Beyond interference issues, administrative and enforcement costs
>will go up. These licenses should therefore assist in creating their
>own barrier to entry - they should cost a few thousand dollars or so to
>help defray their administrative costs and keep people who are less
>likely to respect the airwaves from acquiring them.
>
>Does that sound reasonable?
>
>Regards,
>
>Mark
>www.shander.com
>
>--- Dana Puopolo <dpuopolo at usa.net> wrote:
>
>
>
>>It will be the NAB that's yelling the loudest...
>>
>>-D
>>
>>
>>------ Original Message ------
>>Received: Wed, 19 Jul 2006 09:36:17 AM EDT
>>From: "Bailey, Scott" <SBailey at nespower.com>
>>To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
>>Subject: RE: [BC] LPAM (was Smallest AM Radiator/TIS)
>>
>>Dave,
>> Then, what would it take, "an act of congress" to force the
>>commission
>>to change the rules in part 15 AM? I think that a full 1/2 watt
>>would
>>be o.k. for Part 15, but I'm sure somebody will yell, INTERFERENCE!
>>MAKE
>>THEM TURN IT OFF!
>>
>>Scott
>>
>>-----Original Message-----
>>From: broadcast-bounces at radiolists.net
>>[mailto:broadcast-bounces at radiolists.net] On Behalf Of
>>DHultsman5 at aol.com
>>Sent: Wednesday, July 19, 2006 8:23 AM
>>To: broadcast at radiolists.net
>>Subject: Re: [BC] LPAM (was Smallest AM Radiator/TIS)
>>
>>
>>In a message dated 7/19/2006 7:15:37 A.M. Central Standard Time,
>>rfry at adams.net writes:
>>
>>
>>
>>>> Rule 15.209 does not define anything about tx power or antenna
>>>>system gain/efficiency, only that the peak field strength in
>>>>microvolts/meter when measured 30 meters away from the
>>>>antenna cannot exceed [24,000/Operating Freq in kilohertz].
>>>>
>>>>
>>Phil Alexander responded:
>>
>>
>>>I had to read that one myself. ...Operation on 600 kHz is permitted
>>>twice the FI as on 1200 kHz while, in fact, it should be the
>>>
>>>
>>opposite
>>
>>
>>>to account for propagation attenuation which is far greater at
>>>1200 kHz than at 600 kHz.
>>>
>>>
>>____________
>>
>>However the useful fields permitted under 15.209 in the AM broadcast
>>band
>>are gone long before ground conductivity plays a significant part in
>>them,
>>no matter what the frequency.
>>
>>RF
>>
>>
>>
>>*************************************************************
>>
>>Similar to the old college radio carrier current stations. This is
>>why
>>many
>>of them were on the low band clear channel stations 660,640,670 700
>>etc. I
>>you couldn't hear them normally you would use them for your carrier
>>current
>>frequency because you were allowed to radio a distance of 15
>>microvolts/per
>>meter. This made it nearly two hundred feet from a power line at
>>640
>>kHz. as
>>I recall from KSMU days in Dallas.
>>
>>Dave Hultsman
>>
>>
>>_______________________________________________
>>
>>Do you have a BDR? http://www.oldradio.com/bdr.htm
>>
>>_______________________________________________
>>
>>Do you have a BDR? http://www.oldradio.com/bdr.htm
>>
>>
>>
>>
>>_______________________________________________
>>
>>Do you have a BDR? http://www.oldradio.com/bdr.htm
>>
>>
>>
>>
>
>_______________________________________________
>
>Do you have a BDR? http://www.oldradio.com/bdr.htm
>
>_______________________________________________
>
>Do you have a BDR? http://www.oldradio.com/bdr.htm
>
>
>
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