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Re: [TenTec] My Rare Ten Tec microphone

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] My Rare Ten Tec microphone
From: Peter Connors <monotreme@ntlworld.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Thu, 20 Jul 2006 19:02:20 +0100
List-post: <mailto:tentec@contesting.com>
They can be OK if used at very close spacing to the intended sound 
source; the reduced gain needed at the rig input can help reduce 
reflections, blower noise and unwanted vox action. This is workable with 
a fist microphone but counterproductive in a desk microphone unless you 
want neck problems.
Outside amateur radio, in the course of a 35 year broadcast career I can 
only recall having used omnis as 'personal' mikes. Cardioid, 
hypercardiod and even figure of 8 patterns were more common.
With a group in a circle you might prefer to drop in a cardioid from 
overhead to use the circular pattern at 90 degrees off axis with 
echo/noise rejection at 180 degrees'off the top'.
Close spacing to cardioids can exhibit a degree of added sensitivity to 
low frequencies that is easily eq-ed out - or even more added if you are 
an essb proponent.

Pete, G4PLZ

Rob Atkinson, K5UJ wrote:
> I'm interested in knowing what application omni directional mics have in 
> ham radio as I can't think of any off-hand.   I'm aware of their 
> usefulness in recording where say, you have one with a choral group 
> standing around it in a circle, but in ham radio I can't think of any 
> advantage to omni-directional.  In my basement it would just pick up a 
> lot of echo off the walls, and noise from various fans and blowers.
> 73
> rob / k5uj
> <<<We've made an error in the way the microphone was designated on our
> website and literature - the 708 and 709 series microphones are
> omni-directionals.  Everywhere I've looked, it says "uni-directional"
> except on the base of the production microphone itself, which reads
> (correctly) "omni-directional".>>>
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