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#1
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Jack,
Just some comments. I think you have the right kind of antenna with the fan dipoles. You say it is lower than the house; can't you prop up at least some of it to the height of the house, or a couple of feet more. Have you determined that the radio puts out the same power on SSB (whistle) as when you tune up (on CW?) ? I made most of my early contacts during contests, by answereing calls from people who did not have big pileups. If they hear you, they will come back to you. I did get my SSB DXCC with a Junior beam at 28 feet. To trim a multiple dipole like yours, you have to trim the lowest frequency first, and work your way up. I have a 40/17/12 antenna like that, and this is the only way I got it to convege in EZNEC. Tam/WB2TT "Jack Twilley" wrote in message ... -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 "Tam" == t-tammaru Tam writes: Tam Jack, Have you determined that the radio is actually putting out Tam 100W? The light bulb test should give some indication. I have an MFJ Versa Tuner II which has a power meter. It's not laboratory certified, but the needle does go all the way up to 100 when I tune up and transmit. Tam When I first got licensed on HF I went through a bunch of Tam antennas at less than 20 feet with essentially 0 results. For Tam starters, unless you are DX, nobody will talk to you on 75 or 20m Tam SSB unless you are 5-9. This disappoints me, and I really hope it's not true. Tam I made my first contact half way across the country on 15 m by Tam using a 3 el 6 meter beam at 12 feet (In the attic of a 1 story Tam house). Try getting out during a contest, but you really want to Tam get the wire at least 30 feet up. I don't think you mentioned Tam what the antenna is, or what bands you have tried. I can't get the wire any higher than it is right now at this current location. This is pretty much the best I can do, and this little antenna already totally fills my yard and the yards of each of my neighbors (with their permission). It's a multiband fan dipole with three pairs of legs, cut for 40, 20, and 10. My current goal is to acquire a noise bridge and see where the antenna resonates, then trim the antenna as necessary until it resonates in the right places. After that, I'll look into feedline length modifications as necessary. Hopefully those two approaches will resolve my current issue. Jack. - -- Jack Twilley jmt at twilley dot org http colon slash slash www dot twilley dot org slash tilde jmt slash -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAVNN4GPFSfAB/ezgRAiGkAKDMq+67zZp4MIp8hqcgHPfT7MwVoACfQKKu /bErYRkiIqpODtXG7DDEuGc= =Jm0J -----END PGP SIGNATURE----- |
#2
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 "Tam" == t-tammaru Tam writes: Tam Jack, Just some comments. I think you have the right kind of Tam antenna with the fan dipoles. You say it is lower than the house; Tam can't you prop up at least some of it to the height of the house, Tam or a couple of feet more. Nope, I meant what I said when I said I can't get the wire any higher than it is right now at this current location. Tam Have you determined that the radio puts out the same power on SSB Tam (whistle) as when you tune up (on CW?) ? No, but I'm not really concerned about SSB versus CW -- I'll operate CW if that's what it takes, and it'll be incentive to finally learn. Tam I made most of my early contacts during contests, by answereing Tam calls from people who did not have big pileups. If they hear you, Tam they will come back to you. I did get my SSB DXCC with a Junior Tam beam at 28 feet. My situation is that I can't make a scheduled contact with someone twenty miles from my house while we're on the phone. "Can you hear me on this frequency? Let me key up and you tell me if you can hear me." That's the kind of thing I'm talking about. Worrying about how to get lots of contacts is way way in the future -- I'm fixed on worrying about whether my equipment is even working. Tam To trim a multiple dipole like yours, you have to trim the lowest Tam frequency first, and work your way up. I have a 40/17/12 antenna Tam like that, and this is the only way I got it to convege in EZNEC. That's the plan, once I get the noise bridge. My environment is too complex for me to attempt to model it with EZNEC. Jack. - -- Jack Twilley jmt at twilley dot org http colon slash slash www dot twilley dot org slash tilde jmt slash -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAVSw7GPFSfAB/ezgRAsstAKCC7WSFI7zfR7YzWIFPkCyrbXKp2ACfdAsM 5H4/fieF982XRX8t76o5BaQ= =+Ipn -----END PGP SIGNATURE----- |
#3
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"Jack Twilley" wrote in message ... -----BEGIN PGP SIGNED MESSAGE----- Tam Have you determined that the radio puts out the same power on SSB Tam (whistle) as when you tune up (on CW?) ? No, but I'm not really concerned about SSB versus CW -- I'll operate CW if that's what it takes, and it'll be incentive to finally learn. That's what I am concerened about. You may have a bad mic, or just not modulating due to some failure. When I wasn't able to get out, I could alwayds talk to locals. Try CW/carrier with your friend. He doesn't have to know CW if you are on the phone and he knows your frequency. I would do it on 10m, away from anybody else. You know you can get 20 miles on CB with 5W, and you have 100. Tam/WB2TT |
#4
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 "Tam" == t-tammaru Tam writes: Tam Have you determined that the radio puts out the same power on SSB Tam (whistle) as when you tune up (on CW?) ? Jack No, but I'm not really concerned about SSB versus CW -- I'll Jack operate CW if that's what it takes, and it'll be incentive to Jack finally learn. Tam That's what I am concerened about. You may have a bad mic, or Tam just not modulating due to some failure. When I wasn't able to Tam get out, I could alwayds talk to locals. Try CW/carrier with your Tam friend. I've tried just keying up and I could be heard a mile away, but not twenty. Tam He doesn't have to know CW if you are on the phone and he Tam knows your frequency. I would do it on 10m, away from anybody Tam else. You know you can get 20 miles on CB with 5W, and you have Tam 100. Excellent point. Tam Tam/WB2TT Jack. - -- Jack Twilley jmt at twilley dot org http colon slash slash www dot twilley dot org slash tilde jmt slash -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFAVj5KGPFSfAB/ezgRAqwUAKD1H78q6/xrXD5Nn3LS9noF+CQZ2QCg3GOI cWQRh6xwWdu1tY/dCsUvh4o= =03FT -----END PGP SIGNATURE----- |
#5
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Keep us posted as to what you find out. We could try a sched if it works at
all. I have a lot of free long distance on my cell phone for coordination. I am in NJ. Tam/WB2TT There is no zero or dollar sign in comcast. |
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