[BC] Part 15 LPAM Question?

[Dana Puopolo]

No, but I read the comparisons, and you can find them online.
Someone tested them with a spectrum analyzer, scope and FI meter...

-D

------ Original Message ------
Received: Sun, 10 Sep 2006 07:19:00 AM EDT
From: Robert Meuser <Robertm at broadcast.net>
To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
Subject: Re: [BC] Part 15 LPAM Question?


And you did head to head comparisons?

R


Dana Puopolo wrote:

>You can find the schematics and they ARE comparable....
>
>The 89 dollar kit is also available built for 160 bucks. It's also
>synthesized.
>
>Building an AM transmitter is not black art. Matching it to an antenna isn't
>black art either.
>
>If I owned one of these, I'd put the TX in a nice big metal box - along with
a
>T network using nice big silver wound coils and a vacuum variable cap (we
all
>know where to find this stuff for practically nothing, don't we ;)
>
>I'd put a 102 inch CB whip (with spring) atop the cabinet, and stick the
whole
>thing 25 feet in the air (preferably 25 feet above a nice steel frame
buiding
>that the mounting pole is lightning grounded to with a nice wide strap).
>
>No "ground lead" would be used.
>
>-D
>
>------ Original Message ------
>Received: Sat, 09 Sep 2006 08:03:59 PM EDT
>From: WFIFeng at aol.com
>To: broadcast at radiolists.net
>Subject: Re: [BC] Part 15 LPAM Question?
>
>In a message dated 09/09/2006 3:52:00 PM Eastern Daylight Time, 
>Robertm at broadcast.net writes:
>
>  
>
>>I am not that sure that these units are in the rangemaster league.  
>> There is a certain amount of 'black art' when it comes to matching a 
>> legal antenna. Without looking at the schematics or at least the PC 
>> board, it is hard to state with authority that these units are equal to 
>> a Rangemaster. The only way to determine this would be a head to head 
>> shootout.
>>    
>>
>
>Plus, the Rangemaster is Type Approved and is designed to be legal 
>out-of-the-box. That's mostly what you're paying for. You know that if you
set
>it up 
>according to the manufacturer's guidelines, Uncle Charlie will give it the
>green 
>light. (If only P15 FM permitted as useful a signal as this.)
>
>I looked at the WEBsite for that $90 unit, and it looks like an all-day 
>project just to make that antenna... plus, you don't have a guarantee of 
>compliance. Still, $90 compared to $1,000?
>
>Willie...
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The BROADCAST [BC] list is sponsored by SystemsStore On-Line Sales
Cable-Connectors-Blocks-Racks-Wire Management-Test Gear-Tools and More! 
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