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Total 4 documents matching your query.

1. LF: Antenna relays (score: 1)
Author: Chris Wilson <[email protected]>
Date: Thu, 19 Nov 2015 12:00:30 +0000
19 November 2015 I am currently running a bottom strapped windowed ladder line feeder to my horizontal quad loop as the vertical for LF, the loop as the capacitive top hat. It means I am unable to us
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00419.html (9,381 bytes)

2. Re: LF: Antenna relays (score: 1)
Author: DK7FC <[email protected]>
Date: Thu, 19 Nov 2015 14:56:57 +0100
Hi Chris, I would avoid doing this step. It may be comfortable but it's hard for most relays to carry RF currents of a few ampere and voltages of a few 10 kV :-) There may be some vacuum relays thoug
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00428.html (10,678 bytes)

3. Re: LF: Antenna relays (score: 1)
Author: Andy Talbot <[email protected]>
Date: Thu, 19 Nov 2015 14:06:03 +0000
The Vacuum relays that used to be plentiful at rallies may be good enough.   They were designed for high power auto ATUs and cpuld certainly withstand many kV.   The currents in such ATUs, at teh kW
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00429.html (12,274 bytes)

4. Re[2]: LF: Antenna relays (score: 1)
Author: Chris Wilson <[email protected]>
Date: Thu, 19 Nov 2015 14:49:01 +0000
Hello Andy, Thursday, November 19, 2015 I have 2 Russian vac relays, but only rated to 3kV, plus, my doodlings show I would need multiple relays, as most vac ones only have a single pair of contacts.
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00432.html (10,964 bytes)


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