CQ-Contest
[Top] [All Lists]

Re: [CQ-Contest] Help for pull-up resistors

To: "cq-contest reflector" <cq-contest@contesting.com>
Subject: Re: [CQ-Contest] Help for pull-up resistors
From: "Dave Hachadorian" <K6LL@ARRL.net>
Date: Wed, 5 Mar 2008 17:24:04 -0000
List-post: <cq-contest@contesting.com">mailto:cq-contest@contesting.com>
----- Original Message ----- 
From: "Dick Dievendorff" <dieven@comcast.net>
To: <PaulKB8N@aol.com>; <CQ-Contest@contesting.com>
Sent: Wednesday, March 05, 2008 5:16 AM
Subject: Re: [CQ-Contest] Help for pull-up resistors


> Maybe it should be pulled up to +5V, I'm not sure it 
> matters that much.
> The W9XT BCD-10 schematic shows logic levels of 0 and 5V. 
> The Elecraft K3
> Owner's manual (on the Elecraft web site) says that the 
> maximum voltage is
> 24V and that the K3 wants the lines pulled up to the 
> W9XT's supply voltage.
> The W9XT BCD-10 uses a 4N32 opto isolator, and that 
> shouldn't be very
> critical.
>
> Dick, K6KR

---------------------------
After looking at the K3 interface chip, W9XT told me that 
pullup to 12V would be fine.

Dave Hachadorian, K6LL
Yuma, AZ




















. 

_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest

<Prev in Thread] Current Thread [Next in Thread>