[SBE] H-Pad

[chscherer at everestkc.net]

When I saw the subject of this message, I was getting ready to note the pad calculator page that you found.

There are several other online utilities and converters on the Engineer's Notebook page as well:
http://radiomagonline.com/notebook/

These started from my own collection of notes, but other items have been added since then. In a way, this is still my personal collection, but I have a convenient place to store them.

The page that Chris found is
http://radiomagonline.com/notebook/passive_attenuators/

Chriss

----- Original Message -----
From: Chris Spacone <cspacone at socal.rr.com>
Date: Saturday, June 28, 2008 12:12 pm
Subject: [SBE] H-Pad


> Yesterday, I was working on a cue tone decoder system. I have a 

> stack of DigiCiper IRD's that have a cue tone out but the signal is way too 

> hot for the DTMF decoder. I was feeding the signal into an analog audio DA 

> and had the gain jumper at -12 db which was still too hot. I needed 

> another -10dB or so of attenuation but I needed it at 600 ohms input and output. 

> Aftersome Google searching I found an article by Chriss Scherer at

> WWW.RADIOMAGONLINE.COM that included a calculator for the resistor  values.

> 

> I ran the requirements through the calculator, went to the annex 

> to get the parts, put it together and it works perfectly.

> 

> Thanks for the great resource Chriss! I wonder; does anybody on 

> the list maintain a website or 'personal' list of especially reliable 

> tidbits of engineering stuff like this? If not It might be an ideal 'tab' to 

> add to the SBE website.

> 

> Best regards,

> 

> Chris Spacone