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Total 22 documents matching your query.

1. LF: TA CW? (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Wed, 25 Sep 2013 00:36:21 +0200; Hi Bob, Success! :-) Welcome! :-) Sorry i can't receive on 4000m here since my receivers are mono band homemade DC converters (for 137 kHz and 472 kHz) and direct sampling receivers at 0...24 kHz. Bu; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00134.html (11,133 bytes)
2. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Tue, 24 Sep 2013 19:01:28 -0400; Stefan; 73 kHz band is going to be difficult from my preliminary tests. Seems to be a lack of skywave. I think skywave is going to be rather scarce and best I am doing so far is out to Kansas but it; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00220.html (12,583 bytes)
3. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Tue, 24 Sep 2013 21:01:28 -0400; Alan; I appreciate your input on 73. It was my idea to have Warren Zeigler file an app just to see what might happen at our FCC. I had heard the staff at our FCC was instructed to welcome experimente; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00221.html (18,047 bytes)
4. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Wed, 25 Sep 2013 13:08:45 -0400; Alan; You most certainly got me thinking. I am located on the side of a mile long drop to the East about a 1/4 mile down from the top on the east side of the hill. Over 1/2 mile remains to the bottom; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00222.html (24,698 bytes)
5. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Wed, 25 Sep 2013 15:13:05 -0400; Stefan; The voltage is terrible! I can draw a 2.5 inch flame off the ant input. I am cramped for space to the west as I am only 20 feet from the neighbors line. I am on 4 acre lot and room in all but; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00223.html (13,629 bytes)
6. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Wed, 25 Sep 2013 14:51:35 -0400; Alan; I clamped a short radial to the well casing and it loaded the amp heavier. Had to add a .01 additional mica cap to the plate load in the pi-net output. Ant current went up to 9.5 amps from just; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00224.html (23,897 bytes)
7. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Wed, 25 Sep 2013 19:12:42 -0400; Alan; The vertical portion slopes slightly to the east. The extended zepp is broadside to Europe so ends run SES and NwN. I also have a pair of 120' wires one on each leg about 35' from the zepp so I; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00225.html (18,052 bytes)
8. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Wed, 25 Sep 2013 19:00:07 -0400; Stefan; What kind of ground system do you use and recommend? I use chicken wire radials. I roll it up when time to mow grass and let it out in October. I have couple short ones out and one 150 footer; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00226.html (13,939 bytes)
9. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Wed, 25 Sep 2013 20:50:12 -0400; Stefan; If you get time can you show me where the sphericas electrode would be placed? Maybe at the ant end? I have figured you have 10 db on me on 137! You are in here almost every night regardless; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00227.html (13,818 bytes)
10. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Thu, 26 Sep 2013 10:26:05 -0400; Stefan; Your VLF work is the most interesting project! I saw all your info on the web. I guess there is nowhere else for you to go as you went down to 4 or 5 kHz. There must have been some voltage th; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00228.html (15,124 bytes)
11. RE: LF: TA CW? (score: 1): Author: Bob Raide <[email protected]>; Date: Thu, 26 Sep 2013 10:39:31 -0400; Stefan; I will be putting out the chicken wire in couple weeks when mowing ends. It will be interesting to see if there are any changes in ant resistance. As Alan sez "maybe nothing". I agree that th; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00229.html (13,997 bytes)
12. Re[2]: LF: TA CW? (score: 1): Author: Alex R7NT <[email protected]>; Date: Wed, 25 Sep 2013 20:55:58 +0400; Alan, you wrote 25.09.2013, 19:53 MSK(GMT+4h): Was that the first E-W reception contact of had Laurie made it Caanada earlier John?? Alan G3NYK 73+136 some firsts 29.12.2004 136kHz First reception of; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00236.html (12,254 bytes)
13. Re: LF: TA CW? (score: 1): Author: "Alan Melia" <[email protected]>; Date: Wed, 25 Sep 2013 01:16:12 +0100; Hi Bob, the propagation conditions are very similar to the other LF bands ....there is skywave but the ground wave is stronger further. The usual problem is antenna efficiency .....in rounded figures; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00394.html (15,819 bytes)
14. Re: LF: TA CW? (score: 1): Author: "Alan Melia" <[email protected]>; Date: Wed, 25 Sep 2013 11:22:27 +0100; Hi Bob that sounds a good set-up. Excuse my "telling Grandma how to suck eggs" (as we call it) in my last, but I have seen many frustrated LF ops after much work and investment in copper, gain little; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00395.html (22,378 bytes)
15. Re: LF: TA CW? (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Wed, 25 Sep 2013 15:21:20 +0200; Hi Bob, Am 25.09.2013 03:01, schrieb Bob Raide: [...]But only have a 90' high tower and at the top is the center feed point of my 75 meter double extended zepp. I simply short the open wire line whic; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00396.html (12,395 bytes)
16. Re: LF: TA CW? (score: 1): Author: [email protected]; Date: Wed, 25 Sep 2013 11:04:19 -0400 (EDT); Further to Alan's posts, some thoughts on the earlier 72 kHz TA reception from December, 2002. TA signals from G3AQC and G3LDO (among others) on 2200 meters had been regularly copied in the eastern U; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00397.html (11,206 bytes)
17. Re: LF: TA CW? (score: 1): Author: "Alan Melia" <[email protected]>; Date: Wed, 25 Sep 2013 16:53:44 +0100; Hi John yes I agree totally with your assessments I had forgotten Peter was active at the same time...knowing the date now I will search back through the archive and look at the Dst as this was befor; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00398.html (14,507 bytes)
18. Re: LF: TA CW? (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Thu, 26 Sep 2013 00:33:09 +0200; Hi Bob, Am 25.09.2013 21:13, schrieb Bob Raide: Stefan; The voltage is terrible! I can draw a 2.5 inch flame off the ant input. I know hwat you mean. Similar problems here when i was setting up the s; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00399.html (13,499 bytes)
19. Re: LF: TA CW? (score: 1): Author: "Alan Melia" <[email protected]>; Date: Wed, 25 Sep 2013 23:23:06 +0100; Hi Bob that soundsa terrific location for Europe sloping away to the East, and it sounds like your ground is helpful too. It is interesting the well helps though not as much as hoped for......this is; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00400.html (17,029 bytes)
20. Re: LF: TA CW? (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Thu, 26 Sep 2013 00:35:25 +0200; PS: The PA is a H bridge, using 4x IRFP460A, switching directly at 320 VDC (230V AC mains voltage here). 73, Stefan Am 26.09.2013 00:33, schrieb Stefan Schäfer: Hi Bob, Am 25.09.2013 21:13, schr; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-09/msg00401.html (13,925 bytes)

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