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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Antenna\s+tests\s*$/: 7 ]

Total 7 documents matching your query.

1. RE: LF: Antenna tests (score: 1)
Author: "James Moritz" <[email protected]>
Date: Fri, 13 Dec 2002 11:52:36 +0000
Dear Hugh, Gary, LF Group, I have used basically 2 methods to measure the loss resistance of an antenna. First is a straightforward "noise bridge" type of impedance measurement where the impedance of
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00361.html (10,457 bytes)

2. RE: LF: Antenna tests (score: 1)
Author: "Rik Strobbe" <[email protected]>
Date: Fri, 13 Dec 2002 12:01:07 +0100
Hi Hugh and Gary, If you have a 136kHz TX it's rather easy : measure the antenna current and the TX output voltage, R = U/I. The calculated R is the total loss resistance + radiation resistance, but
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00363.html (11,465 bytes)

3. Re: LF: Antenna tests (score: 1)
Author: "Steve Thompson" <[email protected]>
Date: Fri, 13 Dec 2002 08:41:53 +0100
Hi Hugh, Not a dumb question if you don't know the answer. I would also like to know how to measure the earth resistance or series loss resistance of my antenna when it is finally completed and also
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00367.html (9,611 bytes)

4. RE: LF: Antenna tests (score: 1)
Author: "G4WGT" <[email protected]>
Date: Thu, 12 Dec 2002 22:43:34 +0100
Hi Hugh, Not a dumb question if you don't know the answer. I would also like to know how to measure the earth resistance or series loss resistance of my antenna when it is finally completed and also
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00372.html (10,648 bytes)

5. Re: LF: Antenna tests (score: 1)
Author: "g6tmk" <[email protected]>
Date: Thu, 12 Dec 2002 18:14:59 +0100
Hi Dick and group, Please forgive the dumb question ... Dick wrote: I measured the earth resistance at my station several times this year: On the dry day of 6 April it was 21 ohm... How did you measu
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00375.html (9,284 bytes)

6. Re: LF: Antenna tests (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Thu, 12 Dec 2002 17:08:16 +0100
To All from PA0SE Markus wrote: Though I normaly really dislike the cold weather (as does my 17-year-old Golf Diesel which is supposed to take me to work), the one good thing about frost is the impro
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00377.html (9,418 bytes)

7. LF: Antenna tests (score: 1)
Author: [email protected]
Date: Thu, 12 Dec 2002 06:33:21 -0500
Hi Alan and group, thanks for the fb report and pics about my tests and QSO with OH1BS on 137.0kHz yesterday night. Though I normaly really dislike the cold weather (as does my 17-year-old Golf Diese
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-12/msg00378.html (9,165 bytes)

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