[TenTec] Yaesu FT-1000D RF Compressor versus Ten-Tec 715 RFClipper... not the same

[Fern]

Hi Rob and all:  I've had many different rigs over my ham career and I've found that the FT-1000D has a superb processor/compressor (haven't found one any better yet)  and is still in my estimation the best sounding rig for lots of talk power. Like any other rig, one must make sure that the carrier oscillators are set up properly and then use a great mic such as the shure 444D.  Fern



----- Original Message ----- 
From: "Rob Atkinson" <ranchorobbo at gmail.com>
To: <tentec at contesting.com>
Sent: Saturday, May 30, 2009 10:15 AM
Subject: Re: [TenTec] Yaesu FT-1000D RF Compressor versus Ten-Tec 715 RFClipper... not the same


> Hi Walt, it's good to hear from you!  I hope everything gg okay in Hernando.
> 
> Jerry, I disagree with you but having said my piece I'll leave it at
> that.  I would like to see this study from Ten Tec that you mention as
> I think I would find it interesting reading.
> 
> My main purpose now is to extend an apology to Rich N7TR as it was not
> my intent to cast him in a poor light and I regret and am sorry for my
> earlier comments so far as they seemed to use him as a punching bag.
> Please forgive me.
> 
> 
> 73,
> 
> Rob / K5UJ
> 
> 
> There is another issue at work here when comparing the Yaesu design to the
> Ten-Tec 717....
> 
> A check of the FT-1000D User Manual confirms that Yaesu included an RF Speech
> Compressor circuit... whereas the Ten-Tec Model 715 is an RF Clipper.... not a
> compressor. There are rather significant differences to how compressor and
> clipper circuits work, with clippers being more complex in design therefore
> generally more costly.... which is why most transceivers use either audio
> compression, audio clipping or RF compression for speech processing circuits.
> Then of course all audio compressors are not alike.... all RF compressors are
> not alike, etc.
> 
> There have been more than a few studies over the years comparing the maximum
> possible 'clean(ish)' increase in average voice for a RF compressor versus a RF
> clipper circuit. Ten-Tec provides a copy of one of those studies with each 715
> and I believe it can be downloaded from their website as well. I suggest a good
> place to begin is to allow each person to do their own investigation and
> afterwards make up their own minds as to what is right for their needs.
> 
> 73,
> Jerry, KG6TT
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec


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