Fw: K2, MD-2 MIC AND MFJ-434 VOICE KEYER

[Andrew Catanzaro]

----- Original Message -----
From: Andrew Catanzaro
To: [hidden email]
Cc: [hidden email]
Sent: Sunday, March 05, 2006 12:03 PM
Subject: K2, MD-2 MIC AND MFJ-434 VOICE KEYER


Since my "big rig" is a Japan Radio JST-245 and it has a Yaesu microphone
pinout,
I set the jumpers in the K2 for a Yaesu mike.  My Heil Goldline works fine
with the
K2 and puts out excellent fidelity.  When I started using the Elecraft MH-2
and
Heil boom mikes for the K2, I wired those also for Yaesu and there was no
problem.  The Goldline's HC-5 element had greater fidelity and definition
than
the latter two mikes, but they had greater output and drove the K2 to full
output.
Adding the MFJ 434 keyer was no problem.  I set the jumpers for Yaesu and
it took right off.  It's audio fidelity is a reflection of the audio you
feed it with,
and its utility is great.  You need to be careful about setting the record
gain,
as it easy to pick up background noise if it's set too high.

BTW, when wiring up the K2 for electret mikes, put the 5.7k dropping
resistor in
the microphone *plug* and not in the K2.  That way you can switch between
dynamic and electret mikes and never worry about a DC volatege appearing
across
a dynamic element.

Another note, in response to the recent posts aobut the K2 not being a good
SSB rig on transmit, I have received many unsolicited reports of good audio
with all three of the above mikes.  That was with a 2 KHz audio bandwidth.
The K2 was designed for communications power not for high fidelity
entertainement.  Most of the audio reports have come from DX stations.
I have more recently opened up the bandwidth to 2.2 kHz and, obviously,
the good audio reports continue to come in.  For those who want to
sound like the nighttime announcers on broacast AM stations, buy
the Japanese radios with the wide bandwidth and parametric equalizers,
but I think that's a different hobby from the one I participate in.
The guys from Peter I didn't seem to mind my SSB audio on the
three different bands I contacted them on, and after only a couple calls
each.  That's communicating!

73,
Andy W9NJY
Milwaukee WI
K2 2561  KX1 1139

Message: 4
Date: Sat, 04 Mar 2006 14:59:46 -0000
From: "Chris Page" <[hidden email]>
Subject: [Elecraft] K2, MD-2  MIC AND MFJ-434 VOICE KEYER
To: [hidden email]
Message-ID: <4409AB62.7572.143D51@localhost>
Content-Type: text/plain; charset=US-ASCII

Is anybody using the K2 with the MD-2 mic and the MFJ-434 Voice
Keyer, please?

I borrowed an MFJ-434 Voice Keyer for the weekend to help my wife
June (M0BUE) play in the ARRL DX SSB Contest as W4/M0BUE, but cannot
get it to work with the K2 and MD-2.  I have tried changing the
various jumpers inside the keyer but that doesn't seem make any
difference.

Does anybody know which of the three options (Yaesu, Kenwood or Icom)
of the voice keyer I should use with the K2?

Could the problem be anything to do with the way the MD-2 mic plug is
wired, perhaps not being compatible with the mic socket on the keyer?

Any help and suggestions will be appreciated by June.

Thanks and 73 de Chris, G4BUE (currently N4CJ in Florida)


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