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Author Topic: DSP NR between the Kenwood TS590SG and FTDX 10?  (Read 661 times)

K0UA

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #15 on: July 31, 2021, 03:49:49 PM »

 
Quote
My advice, head over to an HRO and play with both radios...

Two thumbs up for that idea.  Play with the Icoms and Kenwoods while you are there. ;)
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73  James K0UA

KX2T

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #16 on: August 03, 2021, 06:06:04 PM »

compare the two NR's and NB's if you can, don't look at what the guess meter is saying but how good the copy is plus when you use the Yaesu's NR don't go beyond position 1 or maybe 2 then boost the contour control in the menu +10 on level +11 on width and set it +- 200Hz of 1200Hz for improved intelligibility on ssb. On the NB no more than position 1 and in the menu set NB width at 3msec NB reject at 30db these setting will give the best NB response without destroying the IF signal path with which sounds like IF blow by, after six months of playing with the FTDX10 these work the best.
I don't think you will find the Kenwood TS590SG in the same league as the TEN in these areas plus the ultimate channel selectivity is about 20 to 30db better. 
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K7JQ

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #17 on: August 04, 2021, 07:21:56 AM »

Why waste your time trying to help. I don't think The original poster is even looking at this anymore. He never responded to anyone's suggestions/advice.
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KX2T

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #18 on: August 04, 2021, 04:01:11 PM »

Then he must be like all the hams that are going to FT8 and not using CW or SSB cause they cannot seem to be able to chat with someone else but for those who read the technology in the 590SG is really old tech, almost dating back to the 870 and from what I hear the 890S is only a little bit better were Yaesu's technology in the TEN is allot newer and does work but the contour control really helps on SSB.
Bob you know I like the Icom's but the more I play with the FTDX10 and try to get used to the very fast GUI the more I am getting to like it plus its performance really is surprising.
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K7JQ

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #19 on: August 04, 2021, 04:48:04 PM »

Then he must be like all the hams that are going to FT8 and not using CW or SSB cause they cannot seem to be able to chat with someone else but for those who read the technology in the 590SG is really old tech, almost dating back to the 870 and from what I hear the 890S is only a little bit better were Yaesu's technology in the TEN is allot newer and does work but the contour control really helps on SSB.
Bob you know I like the Icom's but the more I play with the FTDX10 and try to get used to the very fast GUI the more I am getting to like it plus its performance really is surprising.

I have zero experience with anything Yaesu, except for a rotator on a tower I had 25 years ago before my current HOA situation. But I see the specs on the FTDX10 are stellar, and just a case of getting used to its operation over the Icoms. I saw you recently had an ad willing to swap it partially for a solid state amp, but apparently the 10 is growing on you ;). Glad you're liking it.

I've never been totally satisfied with the NR on any of the Kenwoods or Icoms I've had. The low settings don't get rid of enough noise, and as you increase the setting the signals become muffled/watery sounding, and generally unintelligible. The West Mountain CLRdsp has proved very satisfactory to my ears, by itself or in combination with a low (3) setting on the 7300 NR. Even at the maximum setting on the CLRdsp, the voice or CW signal pops right out, no discernible distortion, with 90% of the noise gone. Perhaps the FTDX10 has a more advanced circuit.

Personally, I don't understand the attraction of FT8 (I've tried it...bored after 15 minutes), but it sure has taken about a 80- 90% chunk out of CW and SSB operations. I guess it's the future of ham radio.
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HB9PJT

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #20 on: August 05, 2021, 12:32:10 AM »

What is ultimate channel selectivity and where did you get that number?

73, Peter - HB9PJT

I don't think you will find the Kenwood TS590SG in the same league as the TEN in these areas plus the ultimate channel selectivity is about 20 to 30db better.
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KX2T

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #21 on: August 05, 2021, 04:55:35 AM »

Rob Sherwoods full lab reports you can find it on DJ0IP site with almost every decent new radio listed and that is if you understand what the numbers mean which way too many hams just look at his list, these are actual samples not from the manufacture but from dealers of hams like you and me that just might send him our radio's to test and BTW both 590's are there.
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HB9PJT

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #22 on: August 05, 2021, 07:06:57 AM »

At Robs website I cant see a "ultimate channel selectivity" So I ask you again to explain what you mean with it. Maybe you do misunderstand Robs table?

73, Peter - HB9PJT

http://www.sherweng.com/table.html
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KX2T

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #23 on: August 12, 2021, 12:13:39 PM »

I don't understand what you want me to explain about ultimate channel selectivity to you? In the old days it would give you some kind of idea of how selectively the IF part of your radio could be which most commonly like a rig like the FT1000MP it was right around 80db at best with two pair of good crystal filters in the IF chain but since DSP become more involved with many of the superhet designs this spec would increase around 90 or top 100db. The latest radio out in either camp like the FTDX101, the DX10, Icom 7300, 7610, TS890S have been tested at over 110db giving much better selectivity in these radio's today which has given these rigs a better chance of digging out signals on a band when it gets really crowded. Also having better front end filtering does help in these newer designs but as always its the total sum of all the parts. What do you not understand or are you just fishing?   
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KX2T

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Re: DSP NR between the Kenwood TS590SG and FTDX 10?
« Reply #24 on: August 24, 2021, 09:00:18 AM »

Maybe since FT8 has taken away most ham's from other modes on any of the bands today selectivity has become not so much of a big deal after all your only making a contact on a signal for a flash in the pan time stamp, its really not a true contact although you think it is but you the operator is really doing NOTHING but your computer is doing all the work.
But when some of you who still use CW as a mode that ultimate channel selectivity means something along with have a very stout front end design which allows you to slice away many signals almost on the same frequency like never before, better rigs slice up the CW bands like never before.
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