Ed,
I have tried for a few years to come up with a good setting for the NB
that does not degrade FT8 performance. If you find one, please share
it. It seems that any combination of settings I use, reduces the FT8
decode ability greatly for low level signals. The net is a minus in
decoding ability with the NB on. I have a very loud set of
horticultural lights in my area, about a block away, as the source. My
noise level has been reduced lately to only S6...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 10/19/21 1:44 PM, Ed Cole wrote:
I'm trying to use the DSP NB on local noise to improve my 6m reception
of very weak signals (i.e. eme signals).
There are three ranges of DSP NB T-1, T-2, and T-3 with level settings
of 1 to 7. The levels are self explanatory, but have found no
description about the three ranges (application, function, etc)
I've inquired of fellow K3 owners that do eme and they say it improves
SNR with no deterioration of digital signals (specifically JT65 or Q65).
FT8 is probably a good test and more widely used.
Opinions and recommendations.
My 6m local noise peaks to S7 in the NE and drops to S2 when antenna is
rotated to SE thru West. Elevating 13-degrees also helps, dropping S7
to S4.
Tnx & 73, Ed - KL7UW
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to d...@nk7z.net
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to arch...@mail-archive.com
