Jeff,
Is there a web site showing how you or others have mounted, wired and
used these relays to switch coaxes with UHF connectors?
Thanks.
Steve K8JQ
On 7/12/2012 12:10 PM, Jeff Blaine wrote:
> Jim,
>
> Check out the Tyco RTD 14012. Available in a 24v version as well.
>
> Has nice short contacts keeping the L low. Very tough.
>
> 73/jeff/ac0c
> www.ac0c.com
> alpha-charlie-zero-charlie
>
> -----Original Message-----
> From: Pete Smith N4ZR
> Sent: Thursday, July 12, 2012 10:34 AM
> To: TowerTalk
> Subject: Re: [TowerTalk] Sources of Coax Relays
>
> I've used dozens of $2 PC board power relays over the years in various
> antenna switching applications, and have never had a failure at >1300
> watts and SWRs from 1:1 up to over 3:1. W2VJN reported similar, much
> more rigorously tested results at TopTen Devices. I don't see any
> reason to gild this lily further.
>
> 73, Pete N4ZR
> The World Contest Station Database, at www.conteststations.com
> The Reverse Beacon Network at http://reversebeacon.net, blog at
> reversebeacon.blogspot.com,
> spots at telnet.reversebeacon.net, port 7000 and
> arcluster.reversebeacon.net, port 7000
>
> On 7/12/2012 9:20 AM, Jim Lux wrote:
>> On 7/11/12 8:58 PM, Jim Brown wrote:
>>> I'm looking for good quality coax relays for use at the 1,5kW level.
>>> Some will be used only on 160M, most will be used on the HF bands. I may
>>> have a use for a few at the 200W level on 2M. Some will be used for 6-
>>> or 8-position switching to radios, while others will be used with very
>>> different logic. I'm hoping that I can do everything with 12VDC or
>>> 24VDC. Nearly all will be used indoors, but I need at least one or two
>>> that are easy to weatherproof.
>>>
>>> I've got a couple of the Array Solutions products, but I'm not thrilled
>>> with the relays that are used.
>>>
>> What about those doesn't thrill you?
>>
>>
>> I assume you're looking for something reasonably inexpensive, that is,
>> you're looking to repurpose a conventional DC-60Hz kind of power relay
>> to RF.
>>
>> There's been quite a lot of discussion on this list (and others) over
>> the years about which relays seem to work better or worse. Complicating
>> this is that a model number that worked 10 years ago might not work
>> today: it will have the same pinout, contact configuration, and 60 Hz
>> performance, but the RF properties could be quite different.
>>
>> It sounds like you're going to need a lot of relays in the long run
>> (dozens), so maybe the thing to do is to build some little PC boards
>> that hold one relay and do some testing?
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|