The Elecraft version of the Proset uses an electret mic that
will not work with a standard Kenwood mic input. You will
need to add a resistor/capacitor network inside the Kenwood
radio or inside the Foster plug on the Proset adapter.
Radio Proset
1 uF +
1 -------------)(------+------ Tip
|
5 ----------^^^^^^^^---+
5.6 K
7 ---------------------------- Sleeve
73,
... Joe, W4TV
> -----Original Message-----
> From:
[hidden email]
> [mailto:
[hidden email]] On Behalf Of Nelson
> Wittstock
> Sent: Thursday, December 27, 2007 2:36 PM
> To:
[hidden email]
> Subject: [Elecraft] Proset with Kenwood?
>
>
> I just received the Heil Proset from Elecraft. When my K3
> arrives I plan to
> use the headset with the K3. Since I expect a rather long
> wait until my K3
> arrives I am wondering if the headset can be used with my
> current TS-940
> radio. The earphones work but I don't want to try the
> microphone until I am
> sure it is compatible with the 940. The mike plug is
> physically proper but
> I can't find a wiring diagram for the headset so I'm not sure
> about the
> electrical correctness. If the wiring is not a match can I
> wire up a simple
> interface or isn't that practical?
>
> Nelson, K8DJC
>
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