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Ten Tec Speech Processor


Interesting. My first reaction when I saw RF processing was :thumbup1: but then when I saw it connects between the mic and radio I thought WTF?? That's not RF processing but then I read a little further. :laugh: My Kenwood TS-820S has REAL RF processing and it does indeed work far better than the AF processing in my Yaesu FT-857 that is 20 years or more newer.

They say that the more things change the more they stay the same and this another case. Today's new hams don't remember REAL gear that was nuts and bolts as opposed to LCD's and processors like today. Truth be told the big hype today about these new whiz-bang "roofing filters" and the introduction of RF processing is just a case of manufacturers realizing that the older technology is in fact better in some cases. In my early days there was no such thing as a roofing filter. ALL radios had real IF filters in them that worked FAAAR better than any form of DSP audio filtering when it came to strong signal rejection. Today they just prefer to ignore the fact that they are taking a step back in time but two steps forward in better technology and instead make you think this is something new. The same applies to this. All speech processors used to operate at the RF level, usually in a first or second TX IF stage, and worked much better than the audio DSP processors today. Now they are taking another step back in time but two more steps forward in technology that really works. Don`t get me wrong, digital transceivers have their place and functions however there are times when the old ways truly were better. Maybe we will begin to see some more older tech being blended into the newer tech to create a whole new breed of hybrid radios. I hope so.
 
Seems like the proof would be in the pudding. Some before and after testing should show whether or not the power level stays up and whether or not the audio sounds improved on the receiving end.
 
It definitely should work. My question is how do they recover the processed audio and then deliver it to the radio as regular audio. :blink: Normally once the RF signal is processed at the IF level it is simply converted up to the final operating frequency.
 
I bought one of the kits a few years back and never had it assembled. Can't tell you how well they work!

73,
RT307
 
m42duster said:
You could if you assembled it.

:D
Click to expand...
Sho you right! I showed it to a tech and he turned his nose up at it. Probably too much time to assemble it vs. what he thought he could charge me. I am NOT a tech, and cannot solder no matter how hard I try. I can play a trombone, though. Lol

73,
RT307
 
im not familiar with the tentec but rf speech processors between mic and radio can work well,
my datong asp easily beat the internal processor in my old ft767, my old ken-pro works well too,

the rf processors i built years back worked better than any audio speech processor i built or bought,

brief explanation of how they tick
HF/RF Clipper Typ A

i like the passband control on the tentec.
 

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