Re: [IRCA] Part 15: an explanation (and loopholes?)

[kh2ar@xxxxxxxxxxx]

Yup - I've heard him in Memphis all the way down to the lowest power setting. And he has a nice QSL card which he'll gladly send for an SASE.

73s, Jim Pogue/KH2AR

-------------- Original message -------------- 
From: "chris and anne" <tantwo@xxxxxxxxxxxxx> 

> Hey Y'all.....go to QRZ.com....and fill in the call : N4ES....in the upper 
> left box and click on it. Bill runs a neat 10 meter beacon that steps the 
> power down from 20 wts to 2 wts. to 200 mw to 20 mw.....you can read all 
> the details on it on his QRZ page. I've heard all 4 tones here several 
> times....yes, 1/50 of a watt can be heard many miles away. 73, Chris 
> K4NHL S.C. 
> ----- Original Message ----- 
> From: "Joe Miller, AB8YP" 
> To: "Mailing list for the International Radio Club of America" 
> 
> Sent: Thursday, July 19, 2007 12:22 PM 
> Subject: Re: [IRCA] Part 15: an explanation (and loopholes?) 
> 
> 
> > Mr. Taylor, 
> > 
> > I agree with you. It's my understanding though that 
> > the 100 mw is measured at a distance of 30 meters from 
> > the antenna. Depending on the loss of signal strength, 
> > output power at the antenna can be compensated. 
> > 
> > On a side note, I know of a ham operator within 
> > 200-400 miles of me who took an old CB radio, 
> > converted it to transmit on ten meters, and uses it 
> > for a CW beacon with one watt of power. How far does 
> > the signal go? I heard it from my home.... 
> > 
> > 73 de Joe (AB8YP) 
> > 
> > 
> > --- Charles A Taylor wrote: 
> > 
> >> At 03:18 AM 7/19/2007 -0400, you wrote: 
> >> >If it's Part 15, it's limited to 100MW ERP from 
> >> each transmitter into a 3 
> >> >meter antenna.. otherwise it isn't legal. 
> >> 
> >> 
> >> Paul, 
> >> 
> >> What Part 15 says is that the D-C input into the 
> >> final shall not exceed 
> >> 100 mW*, not 100 mW ERP. Also, the total length of 
> >> the antenna, feedline 
> >> and ground connection shall not exceed 3 meters. 
> >> 
> >> * You mean mW=milliwatts. MW=megawatts! 
> >> 
> >> Effectively, that means the final is going to be 
> >> VERY close to the 
> >> antenna. Reading the "letter of the law," I see no 
> >> averse language 
> >> that prohibits a complete radial system. THAT would 
> >> make a BIG 
> >> difference in a 100 mW's reach/coverage. 
> >> 
> >> Also, since the D-C input is fixed at 100 mW, I see 
> >> no averse 
> >> language that limits the R-F input to the final to 
> >> any level. 
> >> That means, for example, if one uses a grounded-grid 
> >> or grounded-base 
> >> final, if driver feeds 50 mW into the final it will 
> >> also appear in the 
> >> output for a total of 150 mW! 
> >> 
> >> It looks legal to me. 
> >> 
> >> Our barn has a galvanized roof and years ago I took 
> >> the time and trouble 
> >> to bond the sheets together.I also put up a 10-foot 
> >> mast atop the center 
> >> of the roof. 
> >> But I never carried through and put a 100-mW 
> >> transmitter up there. I 
> >> may go berzerk and put the mast back up and try a 
> >> small BC station or 
> >> beacon. 
> >> 
> >> 
> >> >Meaning, they can synch more then one transmitter 
> >> together as long as none 
> >> >of the individual transmitters exceed 100MW ERP 
> >> with a 3 meter antenna 
> >> 
> >> Got that right! 
> >> 
> >> Charles 
> >> 
> >> Charles A Taylor, WD4INP 
> >> 
> >> Greenville, North Carolina 
> >> 
> >> 
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> >> 
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> >> 
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> >> 
> >> 
> > 
> > 
> > 
> > 
> > 
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