[Elecraft] Heil Proset Ic and MicroKeyer

[Joe Subich, W4TV]

Bob, 

> Is this an issue with using the Ic model Proset?

Open the (original) microKEYER and reset the jumpers on 
side of the daughter card to bypass the preamplifier. 
See page 38 of the manual - Setting Audio Levels. 

With the iC mic (or any microphone that uses bias on 
the audio line) the preamplifier must be bypassed to 
allow the bias from the soundcard to reach the mic 
element.  Conversely, with a dynamic element (e.g. 
the HC4/HC5) the preamplifier must be enabled to 
keep the bias from damaging the coil of the element. 

73, 

   ... Joe, W4TV 
   


> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Robert Naumann
> Sent: Sunday, March 08, 2009 9:42 AM
> To: Elecraft at mailman.qth.net
> Subject: [Elecraft] Heil Proset Ic and MicroKeyer
> 
> 
> I do not operate SSB very much, but I wanted to get my 
> Microham MicroKeyer working with N1MM for "voice keying". I 
> have the Heil Proset Ic from Elecraft and it works well 
> plugged into the 1/8" mic jack of the MicroKeyer and the 
> MicroKeyer mic output is plugged into the rear panel mic jack 
> of the K3. FB thus far.
> 
> Now, when trying to record in N1MM, I get nothing. The 
> interval of the recording is correct but apparently there is 
> no audio getting from the mic to the soundcard. I have tried 
> all of the audio switching options. The preamp jumpers are 
> both set to ON, but I tried setting them OFF and it made no 
> difference.
> 
> Is this an issue with using the Ic model Proset? In the past, 
> with other radios I have used a standard Proset with HC4 and 
> have not had any trouble. I do not have that headset any 
> longer though, so I can't try it out. 
> 
> The main reason for doing this is so my XYL does not hear me 
> saying my callsign over and over which drives her crazy. This 
> is another reason I prefer CW and RTTY! With voice keying, I 
> could continue to operate without her knowing it!
> 
> Has anyone else been through this with the Proset Ic reaching 
> a solution?
> 
> Thanks,
> 
> Bob W5OV
>