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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Antenna\s+change\s+over\s+relay\s+testing\s+question\s*$/: 6 ]

Total 6 documents matching your query.

1. LF: Antenna change over relay testing question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Mon, 16 Apr 2018 11:24:57 +0100
Hello LF'ers, After an expensive accident whereby my home brew antenna change over relay put nearly a kW of RF up the RX antenna jack of my Kenwood TS-590 i want to safely long term test the relay. I
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00248.html (10,385 bytes)

2. Re: LF: Antenna change over relay testing question (score: 1)
Author: N1BUG <[email protected]>
Date: Mon, 16 Apr 2018 09:19:02 -0400
Hello Chris, The only "something" I can think of would be a really small fast blow fuse. Fuses come in ratings down to 1mA at least but they tend to be pricey and a bit hard to find. I can't be sure
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00254.html (16,398 bytes)

3. Re: LF: Antenna change over relay testing question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Mon, 16 Apr 2018 14:32:46 +0100
Hello Paul. The U3S changes the state of a transistor switch that in turn powers the relays. the DC to DC convertor runs all the time. I guess I need some sort of latching device that stays in the la
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00255.html (14,708 bytes)

4. Re: LF: Antenna change over relay testing question (score: 1)
Author: Riccardo Zoli <[email protected]>
Date: Tue, 17 Apr 2018 00:50:47 +0000
Hi Chris, Considering that you're handling a lot of power, all you need is a simple relay sequencer. Take a look here: https://www.dropbox.com/s/xmwan9kuitu1l75/20180417_010251.jpg?dl=0 A 150-200ms d
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00259.html (17,003 bytes)

5. Re: LF: Antenna change over relay testing question (score: 1)
Author: ik1hgi Qrss Qrpp <[email protected]>
Date: Tue, 17 Apr 2018 09:00:41 +0200
Hello Gris and for some time I use this system with my U3-S for the RXTX you want to see on my wsb pages http://www.qsl.net/ik1hgi/472khz/rele-tx-rx.htm  Helo 73 ik1hgi Antonio 2018-04-17 2:50 GMT+02
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00261.html (19,737 bytes)

6. Re: LF: Antenna change over relay testing question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Thu, 19 Apr 2018 11:44:46 +0100
19th April 2018 Hello Ricardo, Thanks for the link, that's almost exactly what i am doing here. I have experimeted and found a 5 watt, 12 volt automotive "festoon" bulb as used in many ineterior ligh
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00285.html (11,648 bytes)


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