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

Total 7 documents matching your query.

1. Re: LF: Fire in the wire (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Sat, 27 Apr 2013 13:17:36 +0200
But you're running decent power levels and your signal is strong, so the losses must be low, i.e. the currents must be high. Do you really get 50A @ 1kW, i.e. the loop losses (including the capacitor
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00036.html (14,801 bytes)

2. Re: LF: Fire in the wire (score: 1)
Author: Warren Ziegler <[email protected]>
Date: Fri, 26 Apr 2013 19:28:51 -0400
Hi Bob,     Yes but Bill always worked at the 1W level.  I forget the exact numbers but the loop has an inductive reactance of 100-200 ohms, when you multiply that by a loop current of 50A you can ge
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00055.html (13,912 bytes)

3. LF: Fire in the wire (score: 1)
Author: Warren Ziegler <[email protected]>
Date: Fri, 26 Apr 2013 13:21:23 -0400
Just a quick report on a failure mode for LF TX antennas. Last Fall my original TX loop made up of approximately 500 feet of RG-11 coax suspended from trees went open circuit (both center conductor a
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00082.html (10,903 bytes)

4. Re: LF: Fire in the wire (score: 1)
Author: [email protected]
Date: Fri, 26 Apr 2013 21:24:23 -0400
ykes I forgot that and at 1 watt I believe Bill was able to generate a ;ot of current at your power level I would expect any discontinuity in the loop would be a flash point or at least a potential o
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00217.html (13,789 bytes)

5. Re: LF: Fire in the wire (score: 1)
Author: Stefan Schäfer <[email protected]>
Date: Fri, 26 Apr 2013 19:44:01 +0200
Warren, What is the voltage between the tree (GND) and loop? I thought that the voltages are rather small, i.e. below 100V, especially when a large loop is used. Isn't it possible to ground the loop?
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00230.html (11,267 bytes)

6. Re: LF: Fire in the wire (score: 1)
Author: [email protected]
Date: Fri, 26 Apr 2013 19:14:18 -0400
Thought the loop info Bill Ashloch developed pointed to high currents in the loop so a large conductor needed ,, but low voltage and I remember ( ? ) his idea of pushing soft plumbing copper through
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00233.html (11,587 bytes)

7. Re: LF: Fire in the wire (score: 1)
Author: Warren Ziegler <[email protected]>
Date: Fri, 26 Apr 2013 17:47:51 -0400
Hi Stefan,        There are thousands or perhaps tens of thousands of volts from the loop to ground. If I grounded the loop with and there was a large potential difference, wouldn't that cause a larg
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-04/msg00342.html (13,204 bytes)


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