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Total 9 documents matching your query.

1. Topband: Antenna relays (score: 1): Author: Tim Shoppa <tshoppa@gmail.com>; Date: Sun, 17 May 2015 22:55:25 -0400; These are very affordable (circa $3) 8A SPDT relays and they held up OK for me in heavy contest usage - until I got a legal limit amp. Since then I have at first intermittent and then increasing prob; /archives//html/Topband/2015-05/msg00026.html (7,396 bytes)
2. Re: Topband: Antenna relays (score: 1): Author: "Charles Cu nningham" <charlie-cunningham@nc.rr.com>; Date: Mon, 18 May 2015 04:33:41 -0400; Thanks, Tim! I'd be interested to see the pics and your results with the new relays! I'll have a look at the Struthers-Dunn Data sheet also. Thanks for sharing1 73, Charlie, K4OTV These are very affo; /archives//html/Topband/2015-05/msg00027.html (8,487 bytes)
3. Re: Topband: Antenna relays (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Mon, 18 May 2015 05:48:02 -0500; Are you hot-switching these? Or, could they be placed at a point where the current is higher than the relay's rating? In any case, I bought three or four different replays based on a discussion here; /archives//html/Topband/2015-05/msg00028.html (7,471 bytes)
4. Re: Topband: Antenna relays (score: 1): Author: MU 4CX250B <4cx250b@miamioh.edu>; Date: Mon, 18 May 2015 08:11:57 -0400; For my StationPro controller I tested a variety of relays and eventually settled on the Tyco/Shrack (Mouser 655-RTB14012F). There are about 3000 of these relays in use now by StationPro builders, wit; /archives//html/Topband/2015-05/msg00029.html (9,700 bytes)
5. Re: Topband: Antenna relays (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 18 May 2015 08:49:52 -0400; DC or low frequency AC is an almost meaningless test, although field life is a good data point. The only valid bench tests for a relay in these applications are RF heating with high current, and volt; /archives//html/Topband/2015-05/msg00030.html (8,267 bytes)
6. Re: Topband: Antenna relays (score: 1): Author: Tim Shoppa <tshoppa@gmail.com>; Date: Mon, 18 May 2015 09:24:29 -0400; With silver-cadmium relay contacts I use on my ladder line switching, I find I have to occasionally transmit a dit to get receive to work again, especially if I haven't been on the radio in hours or; /archives//html/Topband/2015-05/msg00031.html (8,850 bytes)
7. Re: Topband: Antenna relays (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 18 May 2015 10:16:07 -0400; With silver-cadmium relay contacts I use on my ladder line switching, I find I have to occasionally transmit a dit to get receive to work again, especially if I haven't been on the radio in hours or; /archives//html/Topband/2015-05/msg00032.html (9,817 bytes)
8. Re: Topband: Antenna relays (score: 1): Author: MU 4CX250B <4cx250b@miamioh.edu>; Date: Mon, 18 May 2015 10:37:22 -0400; I agree generally with these comments, except that my experience with CdAg contacts on receiving hasn't been that bad, provided that the application exercises the relays occasionally. Thus, using the; /archives//html/Topband/2015-05/msg00033.html (11,009 bytes)
9. Re: Topband: Antenna relays (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Mon, 18 May 2015 12:31:17 -0400; I agree generally with these comments, except that my experience with CdAg contacts on receiving hasn't been that bad, provided that the application exercises the relays occasionally. Thus, using the; /archives//html/Topband/2015-05/msg00034.html (9,261 bytes)

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