[Lowfer] Re: 600MRG> Need drawing for RF keying stage...

Fri, 8 Feb 2002 18:46:11 -0600

I got this message I think last week. What is up with the server??? I also
lost a few posts a few days ago. Something is screwy!!!

Mike>WE0H
http://www.geocities.com/we0h/index.html

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of ak0b
Sent: Monday, February 04, 2002 7:25 AM
To: Bob Roehrig; WE0H
Cc: [email protected]; SHMRG Reflector
Subject: [Lowfer] Re: 600MRG> Need drawing for RF keying stage...

The problem with relays is they have a useful life measure in times
activated.   I used them to key a beacon and after about 120,000 times they
fail.  I had to go to a transistor switch.  When used for keying it does not
take long to get over 100,000.

de Stan ak0b

----- Original Message -----
From: "Bob Roehrig" <[email protected]>
To: "WE0H" <[email protected]>
Cc: <[email protected]>; "SHMRG Reflector"
<[email protected]>
Sent: Sunday, February 03, 2002 9:45 AM
Subject: Re: 600MRG> Need drawing for RF keying stage...

>
> I just use a reed relay in series with the output of the RF synthesizer.
>
>                     73        Bob Roehrig        K9EUI
>                     Aurora University Telecom/IS dept.
>                     630-844-4898   [email protected]
>
>

_______________________________________________
Lowfer mailing list
[email protected]
http://mailman.qth.net/mailman/listinfo/lowfer