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Total 48 documents matching your query.

1. Topband: TX relays (score: 1): Author: "Milt -- N5IA" <n5ia@zia-connection.com>; Date: Wed, 8 Oct 2014 18:39:19 -0700; What make and model of DPDT relays are you using in your TX arrays? What are your sources? I am looking for some 12 VDC units that are capable of handling full legal limit power to install in a contr; /archives//html/Topband/2014-10/msg00023.html (6,578 bytes)
2. Re: Topband: TX relays (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Wed, 08 Oct 2014 19:25:36 -0700; What make and model of DPDT relays are you using in your TX arrays? 73 de Milt, N5IA I have had good luck with the Omron MJN series, available from Mouser. They are rated at 20A, 600VAC, and those ra; /archives//html/Topband/2014-10/msg00024.html (7,868 bytes)
3. Re: Topband: TX relays (score: 1): Author: "Tim Duffy" <k3lr@k3lr.com>; Date: Wed, 8 Oct 2014 22:27:04 -0400; Hello Milt: I have used these relays in my TX arrays for almost 30 years. No failures so far. http://www.dxengineering.com/search/product-line/comtek-four-square-hybrid-r eplacement-relays?tw=relay&s; /archives//html/Topband/2014-10/msg00025.html (7,959 bytes)
4. Re: Topband: TX relays (score: 1): Author: Phil Duff <na4m@suddenlink.net>; Date: Thu, 9 Oct 2014 03:03:36 +0000; Array Solutions has these: http://www.arraysolutions.com/Products/rf_relays.htm#top of page de NA4M -. .- .- -- Phil Duff na4m[at]suddenlink.net _________________ Topband Reflector Archives - http://; /archives//html/Topband/2014-10/msg00026.html (7,598 bytes)
5. Re: Topband: TX relays (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Wed, 08 Oct 2014 20:04:22 -0700; I have had good luck with the Omron MJN series, available from Mouser. They are rated at 20A, These are also available here: http://www.arraysolutions.com/Products/rf_relays.htm#top%20of%20page I DO; /archives//html/Topband/2014-10/msg00027.html (7,534 bytes)
6. Re: Topband: TX relays (score: 1): Author: Thomas PA1M <t.b.tinge@gmail.com>; Date: Thu, 9 Oct 2014 09:23:04 +0200; We used to use VSB-12STB from Fujitsu (but not available anymore) These relays are also used in devices from some (large) vendors. As they are not available anymore we changed to the Fujitsu FTR-K1CK; /archives//html/Topband/2014-10/msg00028.html (8,748 bytes)
7. Re: Topband: TX relays (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Thu, 9 Oct 2014 05:19:01 -0500; This relay looks exactly what I was looking for to remote-switch my 160m inverted-L to other bands, because it will withstand a lot of voltage. From the PDF: High insulation Insulation distance (betw; /archives//html/Topband/2014-10/msg00029.html (7,697 bytes)
8. Re: Topband: TX relays (score: 1): Author: "Jorge Diez - CX6VM" <cx6vm.jorge@gmail.com>; Date: Thu, 9 Oct 2014 09:37:10 -0200; Hi Tim This are the same relay used in the DXE TFS4 4SQ systems? 73, Jorge CX6VM/CW5W --Mensaje original-- De: Topband [mailto:topband-bounces@contesting.com] En nombre de Tim Duffy Enviado el: jueve; /archives//html/Topband/2014-10/msg00030.html (9,362 bytes)
9. Re: Topband: TX relays (score: 1): Author: "Tim Duffy" <k3lr@k3lr.com>; Date: Thu, 9 Oct 2014 08:47:22 -0400; Hello Jorge, No. Here is the relay in the DXE TFS4. This relay another good choice for TX array building. http://www.dxengineering.com/parts/dxe-rly-hp 73, Tim K3LR Hi Tim This are the same relay use; /archives//html/Topband/2014-10/msg00031.html (9,394 bytes)
10. Re: Topband: TX relays (score: 1): Author: Tim Shoppa <tshoppa@gmail.com>; Date: Thu, 9 Oct 2014 08:57:23 -0400; Mike, I would be concerned about using these small relays for non-resonant antenna switching where the impedance at the switch point may be wildly away from 50 ohms. This is the relay I use to switch; /archives//html/Topband/2014-10/msg00032.html (9,585 bytes)
11. Re: Topband: TX relays (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Thu, 9 Oct 2014 09:46:22 -0400; Because there are many things that go into relay selection that do not show on a data sheet, I always dissect and test relays. I have found 30 amp power relays that overheat at 5 amps at 28 MHz, and; /archives//html/Topband/2014-10/msg00033.html (12,514 bytes)
12. Re: Topband: TX relays (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Thu, 9 Oct 2014 11:31:44 -0400; So what is the actual manufacturers catalog number....or is that just another DXE secret? Since not everyone has DXE products an easy to source item would be beneficial to the ham community. Carl KM1; /archives//html/Topband/2014-10/msg00034.html (10,761 bytes)
13. Re: Topband: TX relays (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Thu, 9 Oct 2014 11:31:51 -0400; So WHAT IS the manufacturers part number of an adequate relay? Carl KM1H -- Original Message -- From: "Tom W8JI" <w8ji@w8ji.com> To: "Tim Shoppa" <tshoppa@gmail.com>; "Mike Waters" <mikewate@gmail.co; /archives//html/Topband/2014-10/msg00035.html (13,943 bytes)
14. Re: Topband: TX relays (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Thu, 9 Oct 2014 10:50:57 -0500; Thanks for the advice. I've already calculated the voltage at the feedpoint of my 160m inverted-L on 80m at 1500w (using EZNEC), and it's only a little over 3 kV. I just popped the cover off a little; /archives//html/Topband/2014-10/msg00036.html (9,677 bytes)
15. Re: Topband: TX relays (score: 1): Author: shristov <shristov@ptt.rs>; Date: Thu, 09 Oct 2014 19:20:20 +0200; 10 kV between contacts, or 10 kV between a contact and the coil? 73, Sinisa YT1NT, VE3EA _________________ Topband Reflector Archives - http://www.contesting.com/_topband; /archives//html/Topband/2014-10/msg00037.html (8,859 bytes)
16. Re: Topband: TX relays (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Thu, 9 Oct 2014 13:33:48 -0400; I just popped the cover off a little Omron PCB-mounting relay that I forgot I had, rated at 10 kV. The spacing between the SPDT contacts and the coil actually looks greater than that open-frame relay; /archives//html/Topband/2014-10/msg00038.html (9,963 bytes)
17. Re: Topband: TX relays (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Thu, 09 Oct 2014 10:38:56 -0700; Thanks for an excellent exposition of the issues. Now how about the other half of the question -- part numbers for relays that meet the need? This reflector (and the spirit of ham radio) is about SHA; /archives//html/Topband/2014-10/msg00039.html (9,259 bytes)
18. Re: Topband: TX relays (score: 1): Author: Mike Waters <mikewate@gmail.com>; Date: Thu, 9 Oct 2014 13:17:05 -0500; Between contact and coil. I just took 2 photos: http://www.w0btu.com/files/misc/Omron_relay_G2R-1-E-T130/ _________________ Topband Reflector Archives - http://www.contesting.com/_topband; /archives//html/Topband/2014-10/msg00040.html (9,721 bytes)
19. Re: Topband: TX relays (score: 1): Author: "Jeff Blaine" <jeff@ac0c.com>; Date: Thu, 9 Oct 2014 13:17:21 -0500; There is some data on this page: http://www.w0qe.com/Technical_Topics/small_signal_relays_at_rf.html I have used the RTD140xx series Schrack/Tyco for years in primarily RTTY contesting duty at the KW; /archives//html/Topband/2014-10/msg00041.html (10,519 bytes)
20. Re: Topband: TX relays (score: 1): Author: "Tom W8JI" <w8ji@w8ji.com>; Date: Thu, 9 Oct 2014 14:18:28 -0400; OK Carl and Jim, I know you want one-part-number-fits-all answers, but I do not think that is possible. There are tens of thousands of relays and dozens of applications. I am afraid telling people wh; /archives//html/Topband/2014-10/msg00042.html (12,008 bytes)

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