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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Pretests\s+for\s+the\s+630m\s+band\s+dipole\s*$/: 13 ]

Total 13 documents matching your query.

1. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Wed, 25 Jul 2012 23:20:56 +0200; Another pretest. The dipole is ready now (still at home). I measured the DC resistance between the ends: 27 Ohm. One reason why i won't get 100% efficiency :-) The length is now 309m. I hope this wil; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00025.html (11,437 bytes)
2. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Wed, 25 Jul 2012 15:03:14 +0200; Yes Sr, I will! Am 25.07.2012 10:45, schrieb mal hamilton: Stefan My preferred choice of Antenna for any band out in the countryside would be some wire as long as necessary thrown over a high tree an; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00109.html (11,442 bytes)
3. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: Dimitrios Tsifakis <[email protected]>; Date: Wed, 25 Jul 2012 11:05:45 +1000; Hi Mike, I would like to share my web page which described a few very simple experiments I did a few months ago: http://people.physics.anu.edu.au/~dxt103/136/earth/ There sure is a lot to explore, es; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00154.html (13,804 bytes)
4. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: wolf_dl4yhf <[email protected]>; Date: Wed, 25 Jul 2012 00:29:01 +0200; RRR - just let me know if you need a 'test signal' besides the beacons. Btw anyone knows where the beacon sending "--. .-" near 477 kHz is located ? I noticed it just today, before that, only "bia",; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00155.html (12,164 bytes)
5. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Tue, 24 Jul 2012 22:51:39 +0200; Hello Mike, Thank you for your answer. I am sure there are plenty of 'lurkers' on THIS reflector :-)) Am 24.07.2012 20:37, schrieb Mike Underhill: Stefan As a long time 'lurker' on this LF group I am; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00300.html (18,492 bytes)
6. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: "James Moritz" <[email protected]>; Date: Wed, 25 Jul 2012 23:51:25 +0100; Dear Stefan, LF Group, Well i want that the antenna works as good as possible. If is imagine the transmitter and battery and all the TX stuff as very compact and floating, then does the position of t; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00366.html (13,027 bytes)
7. LF: Re: Pretests for the 630m band dipole (score: 1): Author: wolf_dl4yhf <[email protected]>; Date: Tue, 24 Jul 2012 21:56:43 +0200; Hi Stefan, If, by chance, you are QRV with the experimental dipole tonight: I will be at DF0WD around 20:30 UTC, watching the bats there, and make a few calls around 472.5 kHz. As far as I can tell f; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00382.html (10,233 bytes)
8. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Tue, 24 Jul 2012 22:31:56 +0200; Hello Wolf, No, i think i will do the first tests tomorrow, if the WX permits. Maybe i find a place where i can leave the antenna for a day, so i can go on the next day. With my PA running a few watt; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00426.html (11,396 bytes)
9. LF: Re: Pretests for the 630m band dipole (score: 1): Author: "James Moritz" <[email protected]>; Date: Wed, 25 Jul 2012 03:28:16 +0100; Dear Stefan, LF Group, Z=R (=resonance)of 46 Ohm. So i would not even need a transformer to match the antenna to the PA. ...However, if you wish the antenna to operate in a "dipole" mode, you will ne; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00447.html (13,655 bytes)
10. LF: Re: Pretests for the 630m band dipole (score: 1): Author: "Mike Underhill" <[email protected]>; Date: Tue, 24 Jul 2012 19:37:53 +0100; Stefan As a long time 'lurker' on this LF group I am particularly interested in what orientation you plan for your low height 630m band dipole antenna and what azimuthal radiation pattern you find. A; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00452.html (16,979 bytes)
11. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: "mal hamilton" <[email protected]>; Date: Wed, 25 Jul 2012 10:46:03 +0100; Stefan My preferred choice of Antenna for any band out in the countryside would be some wire as long as necessary thrown over a high tree and fed via an ATU to the TX/RX. I would not use a dipole lyi; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00465.html (11,878 bytes)
12. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: "Mike Underhill" <[email protected]>; Date: Wed, 25 Jul 2012 00:32:16 +0100; Hello Stefan, and thanks for interesting reply. But a few more comments before I go back to lurking. As yet I am not signed up to lurk also on the yahoo reflector. Perhaps I will when a bit less busy; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00486.html (13,557 bytes)
13. Re: LF: Re: Pretests for the 630m band dipole (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Wed, 25 Jul 2012 14:52:52 +0200; Hello Jim, Thanks once again for your comments. Am 25.07.2012 04:28, schrieb James Moritz: Dear Stefan, LF Group, Z=R (=resonance)of 46 Ohm. So i would not even need a transformer to match the antenn; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-07/msg00701.html (16,590 bytes)

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