Jim, I have all the concerns you are mentioning. I don'y hear much on 80M except some digital stuff much like tty but it's not tty. And I have a major noise problem right in the entire AM window.
I am a Heath collector. but I don't collect unbuilt kits. Right now I am trying to get a DX-60/HR-10 up on 40M CW. So far I have not heard anyone on 40M AM. I also have a SB-301/SB-401 to get on the air. Both recievers are operational. But I have not fired up the transmitters yet. I hope to do so about the first of the month. I do have a portable station. A Heath Cheyenne/Commanche Tx/Rx pair with the mobile power supply. I am planning to try them up on Mt. Rainier. But they again are CW/AM riggs. 40M and up are pretty good. I can copy a lot of CW on 40 in the evenings if there is any activity. When there is a contest there is planty to copy. I also have both 6M and 2M AM/CW trancievers. The 2M FM overloads my TV so I suspect it is also getting some of my neighbors. But My 2M HT is OK. I can talk to myself on it but I can't hit the repeater. When I got back into ham radio a couple of years ago I did not live in this apartment. I lived in my daughters house but she had to move to Denver and I elected to stay here. And I have only worked on the radios on a time availble basis. it's now winter and the time is available. I fly model airplanes in the summer. Thanks, Bob ----- Original Message ----- From: "Jim candela" <[EMAIL PROTECTED]> To: "Discussion of AM Radio" <[email protected]> Sent: Monday, January 24, 2005 8:30 PM Subject: RE: [AMRadio] Stealth Antennas? > > Bob, > > A couple of thoughts on this indoor antenna idea. It is true that you > might hit upon a combination that radiates "fairly" well on some bands. With > a 100 watt rig (20-25 watts AM), your good for some contacts so long as your > receiver can hear amateur signals. More than likely you will be hearing > every FCC Part 15 device, and DSL, BPL, cable Modems, computers, light > dimmers, TV sets, touch switch lamps, etc. that are in the complex that will > be spraying spurious crap all over the spectrum. Even if you do hear > amateurs, your going to "interfere" with these same devices like crazy, and > even though it won't be technically your fault, a whole heard of folk will > be after you like a pack of dogs. > > One way to insure that you will be hated is to use a higher power rig like > a Globe King 500B, or a rice box into a SB-220 and run AM! CW is best at > lower power; SSB is hard to understand, but AM, well forget it. They will > quickly say, that is Bob Simenstad in apt 307. Get ready for some heavy duty > door knocking. When you get on, EVERY PC speaker, and many Dolby digital 5.1 > surround systems will power up from your RF, and emit your voice into your > neighbor's apartments. Many a ham has had his spouse side with the neighbors > too. So that's something else you won't be getting. The PC speaker problem > means you cannot wait until midnight anymore to operate. It will act as an > alarm clock and wake everybody up. > > Bob, I don't mean to burst your bubble about a HF apartment ham station. I > would however lower your expectations, and keep your operating to just a few > hours per week, and the power below 100 watts. > > Alternatively, more than one ham with an effective HF mobile set-up parks > the car near their apartment, and late at night they run outside with some > coax, and connect it to the mobile antenna on their vehicle. You could also > make this wireless, and use the car as a remote transmitter. If you do the > remote approach, then you could conceivably park the car away and on top of > a nearby hill. > > Regards, and Good Luck, > Jim Candela > WD5JKO > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Bob Macklin > Sent: Monday, January 24, 2005 4:43 PM > To: Discussion of AM Radio > Subject: Re: [AMRadio] Stealth Antennas? > > > It's in my 2002 handbook also. ONE little short paragraph! LOL! > > Right after the expanations of trap antennas. If my noise situation gets to > the point I think I might be able to work 80M I will look at putting a > loading coil in my 40M antenna. > > Thanks, > > Bob Macklin > K5MYJ/7 > Seattle, Wa. > > "REAL RADIOS GLOW IN THE DARK" > > ----- Original Message ----- > From: "Edward B Richards" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Monday, January 24, 2005 2:28 PM > Subject: Re: [AMRadio] Stealth Antennas? > > > > Hi again, Bob; > > > > My 2003 ARRL Handbook mentions them on page 20.7. It states that the ARRL > > Antenna Book shows how to design them. Good luck. > > > > 73, Ed Richards K6UUZ > > > > > > On Mon, 24 Jan 2005 13:51:36 -0800 "Bob Macklin" <[EMAIL PROTECTED]> > > writes: > > > Ed, > > > > > > Thanks for the link. Of all the books I have this option is not > > > covered. And > > > there is no reason it won't work. It just makes the tranmiter more > > > happy. It > > > won't improve receiver sensativity. It takes real area for that > > > problem. > > > > > > I understand base loading for the lower HF bands but center loading > > > is > > > common for 10M and higher. That's why I was considering it. > > > > > > Also you can bend a wire antenna but should have at least 1/8W from > > > the > > > feedpoint before the bend. > > > > > > Bob Macklin > > > K5MYJ/7 > > > Seattle, Wa. > > > > > > "REAL RADIOS GLOW IN THE DARK" > > > > > > ----- Original Message ----- > > > From: "Edward B Richards" <[EMAIL PROTECTED]> > > > To: <[email protected]> > > > Cc: <[EMAIL PROTECTED]> > > > Sent: Monday, January 24, 2005 1:20 PM > > > Subject: Re: [AMRadio] Stealth Antennas? > > > > > > > > > > Hi Bob; > > > > > > > > Base loading a mobile whip allows for taping the coil for a better > > > > impedance match. > > > > > > > > You certainly can use a loading coil in the center of a long wire > > > or wire > > > > HF antenna. It is quite common to do so. There used to be someone > > > who > > > > advertised center loading coils for HF antennas. I have not seen > > > an ad > > > > recently. Spi-Ro MFG, inc www.spiromfg.com offers shortened > > > antennas > > > > for some of the amateur bands. Also just the "shorteners". It is > > > easy to > > > > make your own. Get a couple of one foot pieces of 1-1/4 PVC pipe > > > and some > > > > varnish insulated # 14 wire and wind your own. Good luck. > > > > > > > > 73, Ed Richards K6UUZ > > > > > > > > > > > > On Mon, 24 Jan 2005 12:38:02 -0800 "Bob Macklin" > > > <[EMAIL PROTECTED]> > > > > writes: > > > > > I live in a senior apartment where I CANNOT have an outdoor > > > antenna. > > > > > So I > > > > > have a wire around the wall at the base of the ceiling. It is > > > > > currently 1/4W > > > > > 40M antenna. > > > > > > > > > > I did buy the ARRL book on "Stealh Radio". > > > > > > > > > > HF mobile antennas use loading coils to make the antenna look > > > > > longer. The > > > > > better one us a coil in the center of the antenna. > > > > > > > > > > Some apartment antennas are nothing but a mobile whip with a > > > base > > > > > loading > > > > > coil. Why BASE LOADING? > > > > > > > > > > But the real question is why not use a loading coil at the > > > center of > > > > > a long > > > > > wire or dipole to make it look longer? The original Heath > > > Antenna > > > > > Tuner was > > > > > just a loading coil("L" section) that allowed use of a SHORT > > > wire > > > > > with the > > > > > small Heath transmitters. The DX-20 through DX-40. > > > > > > > > > > Bob Macklin > > > > > K5MYJ/7 > > > > > Seattle, Wa. > > > > > > > > > > "REAL RADIOS GLOW IN THE DARK" > > > > > ______________________________________________________________ > > > > > AMRadio mailing list > > > > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > > > > Help: http://mailman.qth.net/mmfaq.html > > > > > Post: mailto:[email protected] > > > > > > > > > > > > > ______________________________________________________________ > > > > AMRadio mailing list > > > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > > > Help: http://mailman.qth.net/mmfaq.html > > > > Post: mailto:[email protected] > > > > > > > ______________________________________________________________ > > > AMRadio mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > > Help: http://mailman.qth.net/mmfaq.html > > > Post: mailto:[email protected] > > > > > > > ______________________________________________________________ > > AMRadio mailing list > > Home: http://mailman.qth.net/mailman/listinfo/amradio > > Help: http://mailman.qth.net/mmfaq.html > > Post: mailto:[email protected] > > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.7.3 - Release Date: 1/24/2005 > > -- > No virus found in this outgoing message. > Checked by AVG Anti-Virus. > Version: 7.0.300 / Virus Database: 265.7.3 - Release Date: 1/24/2005 > > ______________________________________________________________ > AMRadio mailing list > Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:[email protected] >
