Two radio audio

[george fremin iii]

Gee - here is something that went by here less
than a year ago and is on my long list of things
I need to do to improve my station.

Happy reading.

George - WB5VZL
geoiii at bga.com

Date: Mon, 30 Oct 95 14:58 EST
From: David & Barbara Leeson <0005543629 at mcimail.com>
Reply-To: David & Barbara Leeson <0005543629 at mcimail.com>
To: cq-contest <cq-contest at tgv.com>
Subject: Re: 2-Radio Audio Switching

I use a 1K pot to adjust feedthrough from one ear to the other, which is
helpful although it doesn't create a true stereo effect.  It depends on the
headphone impedance, but the typical value is between 60-100 ohms.

There is a standard DPDT switch called ON-ON-ON which does the whole job
of A-Both-B headphone switching.  Look on the package or the switch
itself.  In the center position, A is connected to one ear and B to the
other.  The standard audio cable color-coding is red for right, white fo
r left.

If you want to use a DSP filter, you can just connect both stereo outputs
from a typical JA radio to one cable for filter input, connect the output
to both inputs to the switch box.  Some filters have a low-value resistor
at their input (simulating a speaker) which you'll want to remove for
headphone use, and some have an awkward floating ground setup at their
output.

Hope this helps.  Dave, W6QHS


-- 

George Fremin III
Austin, Texas C.K.U.   Sun spots?  I don't need no stinkin' sunspots!
WB5VZL                   Just give me a good Es cloud.
512/416-7010               
geoiii at bga.com

>From harpole at pegasus.cc.ucf.edu (Charles H. Harpole)  Wed Jun 19 04:57:25 1996
From: harpole at pegasus.cc.ucf.edu (Charles H. Harpole) (Charles H. Harpole)
Date: Tue, 18 Jun 1996 23:57:25 -0400 (EDT)
Subject: All this KV4 stuff
Message-ID: <Pine.SOL.3.93.960618235609.22616C-100000 at Pegasus>

Is it possible to say any more about the KV4 call sign???
BTW, I want the call KV4UD  !!!   de K4VUD


>From thompson at mindspring.com (David L. Thompson)  Wed Jun 19 04:37:21 1996
From: thompson at mindspring.com (David L. Thompson) (David L. Thompson)
Date: Tue, 18 Jun 1996 23:37:21 -0400
Subject: Stop the KV4AA's!
Message-ID: <199606190427.AAA24626 at borg.mindspring.com>

This thread has gone far enough.  Lets get on to "real" contesting.

Dave K4JRB

Field Day is "real" contesting and an ideal training ground.  Invite new
contesters over to your site or station and let's play!


>From palooka at pyrotechnics.com (Joe Pontek, K8JP)  Wed Jun 19 05:36:19 1996
From: palooka at pyrotechnics.com (Joe Pontek, K8JP) (Joe Pontek, K8JP)
Date: Tue, 18 Jun 1996 23:36:19 -0500
Subject: FW: CT and Radio Timeout/Polling?
Message-ID: <199606190436.XAA26314 at kiwi.pyrotechnics.com>


>Double-check to see if you're running "COMTSR" (1,2,3, etc.)
>A TSR (program, if you will) that you must run BEFORE you run CT.
>I assume you're using CT version 9, but you did not say.
>Prior to CT 9, there were no COMTSRs, I think.

Hi Glenn, No, CT8 had the first COMTSR's

>     Hope this helps, 73! --Glenn, KB1GW
>                     kb1gw at arrl,.org

>>Getting ready for Field Day. Using new FT-990 Yaesu and experiencing a
>>unique problem. Setup CT as per instructions however as soon as the
>>Radio is on-line there appears to be a polling of the entire computer
>>taking place. The keyboard will only take a key about once every couple
>>of seconds. The radio can be controlled however it also takes several
>>seconds. Also get Yaesu Radio timeout message.
Dan, What kind of interface are you using?
>>I have tried to change the polling, does not appear to make any
>>difference. Maybe I'm not doing it correctly.
>>
>>Can anyone give me some help with this, need to resolve ASAP. Thanks for
>>taking the time to read this.
>>
>>Dan, N4DVW, adnixon at akorn.net
>>
>
Dan, let us know, also, what you find out.

73, K8Joe"Palooka"

K8JP, K8JP/VA2, VP5/K8JP, VP5JP, ex-K8HKM, ex-KN8HKM
palooka at pyrotechnics.com

snail mail:
Joe Pontek, K8JP
P. O. Box 59573
Schaumburg, IL 60159-0573
(847) 885-8871 (home)
(847) 519-7420 (work)
(847) 619-3250 (FAX)
U.S.A.