locked long intergration modem


David Michael Gaytko // WD4KPD <wd4kpd@...>
 

just wonder if there be out there a modem that given a long t/r period could be used on our bands.

am thinking about NASA data from the Voyager that seems to be integrated over many hours.


depending on the power level, a t/r period of 3 to 5 minutes would not be too bad. remember jt44, and the cumulative average under jt65.

could be something interesting to work with.

david/wd4kpd


--
God's law is set in stone, everything else is negotiable.


qrpbear
 

Lentus digital mode by the same fellow that develops multiPSK might fit your needs. Five minute transmissions and seems to go about 6dB deeper into the noise than WSPR. I've used it for testing from 80 through 10 meters and it does work quite well.

73,

'Bear' NH7SR


blitz716
 

Btw bear, I run the lentus@... list feel free to sub if you're not now.
Same goes for anyone else interested in the mode.



qrpbear@... [WSJTX] wrote:

Lentus digital mode by the same fellow that develops multiPSK might fit your needs. Five minute transmissions and seems to go about 6dB deeper into the noise than WSPR. I've used it for testing from 80 through 10 meters and it does work quite well.

73,

'Bear' NH7SR


David Michael Gaytko // WD4KPD <wd4kpd@...>
 

Tks for info Bear....

i remember the mode, but didn't catch on.
i will revisit it.

david/wd4kpd



On 6/9/2015 10:01 AM, blitz716 blitz716@... [WSJTX] wrote:
Btw bear, I run the lentus@... list feel free to sub if you're not now.
Same goes for anyone else interested in the mode.



qrpbear@... [WSJTX] wrote:
Lentus digital mode by the same fellow that develops multiPSK might fit your needs. Five minute transmissions and seems to go about 6dB deeper into the noise than WSPR. I've used it for testing from 80 through 10 meters and it does work quite well.

73,

'Bear' NH7SR

-- 
God's law is set in stone, everything else is negotiable.


KI7MT <ki7mt01@...>
 

HI David,

I'm not sure when, but I'm pretty sure Joe and the other developers are
going to integrate WSPR-15 mode in WSJTX which is 15min TX/RX sequence I
believe, designed specifically for the low bands.

I don't know much about Lentus Digital (sounds interesting though), so I
can't really compare the two performance wise.

73's
Greg, KI7MT

On 06/09/2015 06:00 AM, David Michael Gaytko // WD4KPD
wd4kpd@... [WSJTX] wrote:
Tks for info Bear....

i remember the mode, but didn't catch on.
i will revisit it.

david/wd4kpd



On 6/9/2015 10:01 AM, blitz716 blitz716@... [WSJTX] wrote:


Btw bear, I run the lentus@... list feel free to sub if
you're not now.
Same goes for anyone else interested in the mode.



qrpbear@... [WSJTX] wrote:
Lentus digital mode by the same fellow that develops multiPSK might
fit your needs. Five minute transmissions and seems to go about 6dB
deeper into the noise than WSPR. I've used it for testing from 80
through 10 meters and it does work quite well.

73,

'Bear' NH7SR

--
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