[SBE] More Handy Software

[Chris Tarr]

While we're discussing software...

Does anyone have a link (or remember the name) of the software that
creates those handy indirect FM power charts.  You type in the
efficiency of the transmitter, along with the nominal parameters and
it creates a nice chart.

I found it a month or two ago, then promptly forgot the name!  And, of
course, I can't seem to find it on my computer anywhere!

Any ideas?

-Chris

On Mon, Jun 30, 2008 at 10:58 AM, Ron Castro <ronc at sonic.net> wrote:

> RFS does indeed work with Vista, although, as with all the flavors of

> Windows, the print function doesn't work.  Despite that, I use RFS very

> often since it does calculations I haven't been able to find in other free

> programs, such as the area of guyed tower plot, an intermod calculator and

> several others.

>

>        Ron Castro

> Chief Technical Officer

>   Results Radio, LLC

>              N6IE

>     www.N6IE.com

>

>

> ----- Original Message ----- From: "Carl Sundberg" <carlesundberg at yahoo.com>

> To: "sbe member discussion mail list" <sbe at sbe.org>

> Sent: Monday, June 30, 2008 6:38 AM

> Subject: [SBE] More Handy Software

>

>

>> Hi All,

>>

>> For years I have used some DOS software from an equipment supplier. Its

>> been really handy and I keep it on my DOS Pocket HP for use in the field.

>> You will find all kinds of calculations that are simply the best for a quick

>> reference and it includes things like pad calculators. Just thought I would

>> share the link with all who may not know about it. I don't know if you can

>> use it with Vista. But is works on all other PC OS's... and FreeDOS. The URL

>> is:  http://www.rfspec.com/rfs.htm

>>

>> Carl Sundberg

>> 3318 Coraly Ave.

>> Eugene, OR 97402-6544

>>

>>

>> Cell: 541 520-2867

>> Landline: 541 461-2324

>>

>>

>>

>> ----- Original Message ----

>> From: Chris Spacone <cspacone at socal.rr.com>

>> To: sbe member discussion mail list <sbe at sbe.org>

>> Sent: Saturday, June 28, 2008 10:12:04 AM

>> 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 -10 db

>> or so of attenuation but I needed it at 600 ohms input and output. After

>> some 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

>>

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