[Orion] Heil HC-4 vs HC-5?

[Lee Armitage]

Eric,

On Orion II

I use the Heil #5 element in the Heil light weight boomset with these 
settings and get excellent reports and works well in DX pile ups. The #5 
element and boomset is about 10 years old.

I am wanting good communication audio, not Hi Fi.

MIC 50
SP3
TX EQ: -3dB
H/W MIC Gain 0.0 dB
L.F.Rolloff  150 Hz

Mic is positioned half way down towards my chin and turned at 45 degrees 
towards the mouth so I am speaking across the mic face.

Others tell me that using the H/W MIC Gain worked well for them, but when I 
tried it the audio drive was too much and I just leave it at zero.

Lee Armitage N7FV
Western Colorado
970-234-8989




----- Original Message ----- 
From: "Eric Rosenberg" <wd3q at starpower.net>
To: <orion at contesting.com>
Sent: Tuesday, March 06, 2007 10:48 AM
Subject: [Orion] Heil HC-4 vs HC-5?


>I recently swapped the Heil HC-4 ("DX") element in my Proset with the HC-5 
>"normal". Netiehr is new. I suspect hey're both ~10-13 years old.
>
> The specs Heil posts on their website say the mikes are fundamentally the 
> same (same frequency range, with the HC-5 having a mid-range 'bump' 
> presumably to increase fidelity), I did note that the impedance is 
> different. There's a physical difference, too. The HC-5 has a larger hole, 
> which I assume has an impact on the frequency response.
>
> I've noticed that the HC-5 needs a significantly higher mike level --  
> almost at the top of the range -- to drive the Orion.  If I run it through 
> the computer's built-in sound card and use the high-boost setting, the 
> radio is seriously (negatively) overdriven.
>
> Is this to be expected? If not, is there a remedy?
>
> Thanks,
>
> Eric W3DQ
> Washington, DC
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