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Better sensitivity/selectivity from new RF DSP Chip

The technical side of broadcasting. Think IBOC is a sham? Talk about it here! How about HDTV? Post DX reports here as well.
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Marcus
Posts: 400
Joined: Fri Jan 21, 2005 1:08 pm
Location: Sarnia, Ontario

Better sensitivity/selectivity from new RF DSP Chip

Unread post by Marcus »

The chip is known as the NXP TEF6686. It sounds like it is even better than the DSP circuit that the current Sangean, Eton/Grundig, and CCrane radios use right now.

https://radiojayallen.com/qodosen-sr-28 ... -portable/

https://swling.com/blog/2022/12/ivan-ch ... hip-radio/

https://www.youtube.com/watch?v=ZCmP6Po7CWU
k8jd
Posts: 626
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: Better sensitivity/selectivity from new RF DSP Chip

Unread post by k8jd »

From a Quick read and look at the manual presented.
I am guessing it does not support SSB/CW operation on the shortwave bands.
Not having that function limits severely what you can listen to on the SW bands/

It Will NOT be on my XMAS wish list.
Marcus
Posts: 400
Joined: Fri Jan 21, 2005 1:08 pm
Location: Sarnia, Ontario

Re: Better sensitivity/selectivity from new RF DSP Chip

Unread post by Marcus »

It's true that the radios with it right now do not have SSB. One of the receivers is at a low wholesale price however.

https://www.aliexpress.us/item/32568060 ... pt=glo2usa

Some radios that combine that kind of high performance with a BFO might be on the way. The technology to manufacture them at a reasonable price appears to be close.
k8jd
Posts: 626
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: Better sensitivity/selectivity from new RF DSP Chip

Unread post by k8jd »

I guess a do-it-all radio would be very expensive, I could live without The FM band and all the digital data you can pull out,
give me a good long wave, AM, SW radio I can afford. My TecSun portable suffers from proor AM and Long wave due to the size of the intermal antrenna. FM and SW bands seem to be fairly good. Ext antenna connected on FM or SW bands really does well.
syntheticexctasy
Posts: 123
Joined: Wed Apr 27, 2011 10:26 am
Location: 49270

Re: Better sensitivity/selectivity from new RF DSP Chip

Unread post by syntheticexctasy »

Honestly, the most selective, sensitive chips out right now are used in HD receivers.
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