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Re: [TenTec] F.S. New Ten Tec 715 RF Processor

To: Brian Carling <bcarling@cfl.rr.com>
Subject: Re: [TenTec] F.S. New Ten Tec 715 RF Processor
From: Joe W2KJ <w2kj@bellsouth.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 18 Feb 2014 17:35:30 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Howdy Bry:

The 444D can be switched between HI and LO impedance...so that's not the 
problem...I also used a 600 ohm headset with similar results....it's not a mike 
impedance problem.

                        73, Joe W2KJ

On Feb 18, 2014, at 4:20 PM, Brian Carling wrote:

> It sounds like you might possibly have had an impedance mismatch. Most attend 
> tech equipment and other modern equipment uses low impedance microphones, 
> around 600 ohms.
> 
> If you use microphones like the Shure 444 and other high impedance 
> microphones, they can be loaded down and sound pretty terrible.
> 
> Best regards - Bry Carling
> 
> 
> 
>> On Feb 18, 2014, at 4:06 PM, Joe W2KJ <w2kj@bellsouth.net> wrote:
>> 
>> Howdy Gang:
>> 
>> Last year I bought a model  715 RF Speech Processor from Ten Tec and played 
>> with it for several months with my Drake gear but couldn't get the audio to 
>> sound good.
>> 
>> A couple of weeks ago I called Ten Tec to let them know that the 715 wasn't 
>> working well with my Drake gear so they told me to send the unit back to 
>> them for a look-see.
>> 
>> I received a brand new unit last week and still had the same problem of poor 
>> audio with my Drake gear...using a 444D mike provided excellent audio with 
>> the Drake stuff but not through the 715.
>> 
>> Since the 30 day return policy was no longer in effect I couldn't get a 
>> refund from Ten Tec.
>> 
>> I was told by a Ten Tec rep that a similar complaint was received from an 
>> amateur not getting good audio from his Collins gear with the 715.
>> 
>> I guess the 715 is designed to work with newer gear...I have also heard that 
>> the 715 was designed to work FB with more "restricted audio" 
>> microphones...not sure exactly what that means though.
>> 
>> The 715 gets excellent reviews on eHam Product Reviews..all using newer 
>> equipment not vintage gear.
>> 
>> In any event, I appreciate the support I received from Ten Tec and have 
>> decided to sell the 715  since I can't use it with my Drake gear.
>> 
>> I offer the unit for sale...it is brand new.....will ship for $175.00.
>> 
>> It comes with a cable designed for Ten Tec equipment.
>> 
>> 
>> Digital picture on request.
>> 
>> Many thanks.
>> 
>>           73, Joe W2KJ
>> 
>> 
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