2 radio ops- headphone questions

george fremin iii geoiii at bga.com
Wed Sep 25 21:43:13 EDT 1996


Steven Nace writes:
>
>One question is: If 1 rig is audible in each ear, do you have a serious
>handicap when one radio is turned down all the way? Does this present an
>'inbalance' in your head? Is there a way to counteract this inbalance?
>
>Any advice and experiences shall be appreciated.

I know that I have re-posted this post from W6QHS before - but 
it is still on my to do list - maybe this fall.
It "sounds" like a good idea to me.

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.   
The operator formerly known as WB5VZL
512/416-7010               
geoiii at bga.com

>From bernie.mcclenny at mail.wdn.com (Bernie McClenny, WR3E)  Thu Sep 26 05:19:35 1996
From: bernie.mcclenny at mail.wdn.com (Bernie McClenny, WR3E) (Bernie McClenny, WR3E)
Date: Wed, 25 Sep 1996 21:19:35 -0700
Subject: IARU Contest HQ stations claimed scores
Message-ID: <324A0457.2FE1 at mail.wdn.com>

Here are the IARU Head Quarter station claimed scores for the IARU
Contest.  Still looking for the following scores:
8J3XHQ, EM5HQ, ER7A, ES4MM, HG96HQ, L75AA, LX0RL, LY0HQ, OI1X, OM6HQ,
R3HQ, SK0HQ, SV1SV, VY1RAC, YU0HQ, Z30M.  Does anyone have any fills?
de Bernie, WR3E

Call       HQ      QSO's     Mult's      Score
DA0HQ      DARC    10800*    295*        8,400,000*
YP0A       FRR      7627     284         7,159,356
S50HQ      ZRS      8196     283         6,673,423
EM5HQ               6216     259         5,566,946
OL9HQ               7111     269         5,547,856
W1AW/3     ARRL     8017     243         5,139,207
PI4AA      VERON    4315     230         3,559,710
GB5HQ      RSGB     3500*    ?           ?
ON4UBA     UBA      3472     207         2,096,082
EI0RTS     IRTS     426      31             81,111


Operators:
EM5HQ        US1ITU,US2IES,US2IMA,US2IR,US3IZ,US8IDX,UT1IA,UT2IA,
             UT2ID,UT2II,UT2IJ,UT2IM,UT2IO,UT2IV,UT2IW,UT8IM,
             UT8IT,UX8IX,UY5ZZ,US-I-603,US-I-604,US-I-700
             (not sure if this is all the operators for EM5HQ)
EI0RTS       EI3DP,EI4BZ,EI6BT,EI7DNB
GB5HQ        G4BAH,G4PIQ,G0WCW
OL9HQ        Unknown
PI4AA        PA3BBP,PA3DZN,PA3EOB,PA3ERC,PA3EWP,PA3FQA,PA3FRN,PA3GBQ,
             PA3GXF,PB0AIC,PI4AA
S50HQ        S50K,S50N,S51AY,S51IX,S51OI,S51ZO,S53BM,S54E,S55A,S57A,
             S57AD,S57DX,S57NX,S57W,S58A,S58D
W1AW/3       AA3NM,K3DI,K3NA,K3RA,KA2AEV,KJ4VG,N3ADL,N3QYA,N5OKR,ND3A,
             ND3F,W3LPL,W3MR,WA3WJD,WB4NFS,WM2H,WN3K,WR3E,WR3Z
YP0A         YO2ADQ, YO2APJ, YO2AUN, YO2BBT, YO2BP, YO2BV, YO2DFA,
             YO2GL, YO2IS, YO2LDC, YO3AC, YO3AWC, YO3CDN, YO3FRI,
             YO3FU, YO4AB, YO4ATW, YO4DIH, YO4HW, YO4SI, YO4WP, YO4WZ,
             YO4XF, YO5CRI, YO5DMB, YO5TE, YO6AWR, YO6GCW, YO8BAM,
             YO8ER, YO8SS, YO8TU, YO8WW

*=approx.
-- 
Bernie McClenny WR3E (ex WB3JRU)

Norms Rotor Service
We buy/sell/trade all U.S. rotors see our home page @
http://www.tiac.net/users/shiacawn/rotors
301-874-5885


>From tree at lady.axian.com (Larry Tyree)  Thu Sep 26 03:54:28 1996
From: tree at lady.axian.com (Larry Tyree) (Larry Tyree)
Date: Wed, 25 Sep 1996 19:54:28 -0700 (PDT)
Subject: Power and offspring
Message-ID: <199609260254.TAA02303 at lady.axian.com>

> 3. Does running QRO in contests really make you more likely to have female
> offspring?

No way!!!  I have never run illegal power in my life.  And I have only
ever operated in Louisana once.  And when I was at W7NI, I didn't inhale.

Tree N?TR
(father or Theresa, Rebecca and Sarah)

>From ng0x at ricochet.net (Dave Curtis)  Thu Sep 26 12:17:15 1996
From: ng0x at ricochet.net (Dave Curtis) (Dave Curtis)
Date: Thu, 26 Sep 1996 04:17:15 -0700
Subject: The Callsign Contest
References: <199609251537.KAA11553 at onyx.southwind.net>
Message-ID: <324A663B.5614 at ricochet.net>

Troy Majors wrote:
<snip>
> 
> Hey, not a bad idea!  Seriously, the exchange would be a
> challange.  And almost everyone has at least one old call
> or two in their history.

Yeah, *snicker*, how about the QSO points being the number
of old callsigns received?  I might be worth something
that way.. although I'm sure other's can beat me.
73, Dave "4-pointer" wn0izx->wb0izx->kb0ke->ng0x->?6??



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