[Elecraft] Heil Proset Plus and K3

[Bruce McLaughlin]

This only a guess but I wonder if Heil pulled a trick with the short red
adaptor destined for use on the K2/K3.  Maybe they did a wiring switch in
the adaptor to make it compatible.  I remember, the "standard" mike wiring
for the K2 is the Kenwood standard, although, other configurations could be
chosen when the mike connector was wired during construction.  I remember
wiring my K2/100 for the Kenwood standard and everything worked.  I used the
Elecraft supplied Heil hand mike which is an electret.  

Heil told me that their dynamic mikes would work fine with the K3 and
Kenwood cable.  They also said that it made no difference whether the rig
bias was on or off because they used a resistor to block the unneeded bias
which would also protect the rig.  I intend to try my Gold line and PR 40
mikes in the future with the K3 using a Kenwood cable but with no bias just
to be sure!  However, electret mikes such as the Proset are another kettle
of fish.  All I really know is the red adaptor which came with the Elecraft
supplied Proset works fine with the K3.  Perhaps it would be worthwhile to
give Heil a call for a better explanation.

Bruce - W8FU

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of n4lq
Sent: Thursday, May 15, 2008 6:56 PM
To: Bruce McLaughlin; 'John AK4Z'; elecraft at mailman.qth.net
Subject: Re: [Elecraft] Heil Proset Plus and K3

Wow. It would be interesting to know how that managed to work. The IC means 
the headset is wired for ICOM then with a Kenwood adapter to an Elecraft 
mic. jack with the bias on the wrong pin. (8) instead of (5) as etc.
I'm glad it works but not sure why.

Steve Ellington
N4LQ at insightbb.com
----- Original Message ----- 
From: "Bruce McLaughlin" <bmclaugh at bex.net>
To: "'John AK4Z'" <ak4z at chartertn.net>; <elecraft at mailman.qth.net>
Sent: Thursday, May 15, 2008 6:43 PM
Subject: RE: [Elecraft] Heil Proset Plus and K3


>I am using the Proset marked "IC" which came from Elecraft with my new K3.
> Inside the instructions said it was for the K2 but I think that was 
> printed
> before the K3 was around.  It has a short Kenwood (red) 8 pin adaptor.  It
> works fine plugged into the front mike connector with the mike bias turned
> on.  Currently the bias is set to high but I understand it will also work
> with the bias set to low.
>
> Bruce - W8FU
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John AK4Z
> Sent: Thursday, May 15, 2008 4:31 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Heil Proset Plus and K3
>
>
> Is anyone using a Heil Pro Set Plus IC with a HC-4 and iC electret element
> with their K3? How did it play? I understand that a Heil Kenwood adaptor
> (red) is needed to interface with the 8-pin microphone connector on the
> front of the K3. Is rewiring of the 8-pin Kenwood connector required?
> Advice/comments regarding setup appreciated.
> -- 
> View this message in context:
> http://www.nabble.com/Heil-Proset-Plus-and-K3-tp17261851p17261851.html
> Sent from the Elecraft mailing list archive at Nabble.com.
>
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7:25 PM