[ICOM] Heil PRO-SET PLUS!ic and RIGblaster Pro

[Steve]

Thanks for the idea Jack.

The output impedance of each of the switchable elements in the Heil 
PRO-SET PLUS!ic is about 1K according to Bob Heil. The documentation for 
the RIGblaster Pro doesn't provide this specification . . . you could 
well be right.

How do I deal with it?

Thanks.

Steve K8JQ

Jack/AE7DX wrote:

> Steve wrote:
> 
>> I've been tinkering off and on for about six months trying to get a 
>> Heil PRO-SET PLUS!ic to work properly with a RIGblaster Pro. The radio 
>> is an IC756PROII.
>>
>> My difficulty lies in recording wav files with the RIGblaster Pro in 
>> line between the Heil PRO-SET PLUS!ic and the PC sound card.
>>
>> If I record a wav file using the Heil PRO-SET PLUS!ic (set to either 
>> icom or DX) plugged into the RigBlaster Pro mic 2 input, the level is 
>> about 20-30db lower than wav files recorded with my Icom SM-20 desk 
>> mic plugged into the RigBlaster Pro. And the low's are noticably 
>> attenuated when using the Heil.
>>
>> If I record a wav file using the Heil PRO-SET PLUS!ic (set to icom) 
>> plugged directly into the computer sound card MIC IN, I get lots of 
>> level and no low end roll off. And the Heil PRO-SET PLUS!ic works as 
>> expected when connected to the radio.
>>
>> For some reason the audio path through the RIGblaster Pro doesn't work 
>> well for the Heil PRO-SET PLUS!ic.
>>
>> Any experience or ideas to try?
>>
>> Thanks.
>>
>> Steve K8JQ
> 
> 
> Just a thought, Steve, but I wonder if the impedance of the input to the 
> RIGblaster Pro is sufficiently different from the IC756ProII to affect 
> the frequency response of the mike element? I have no experience with 
> either piece of gear but I have seen that sort of behavior in broadcast 
> audio systems.
> 
> 73,
> 
> Jack, AE7DX
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