Tim,
I am *very* interested it this! Please, if you get any private messages,
post them here so we can benefit from this.
Many hams have testified that Linrad is absolutely the best SDR software
available for eliminating noise. I played with Linrad and a Softrock
Ensemble II RX some time back, but I didn't have the time to continue then.
73, Mike
W0BTU
On Mon, Jan 20, 2020, 9:44 AM Tim Shoppa <tshoppa@gmail.com> wrote:
> My horrible utility line noise (which afflicted me in ARRL 160) continues
> and I'm looking to operate in the CQ 160 test this weekend and not be an
> alligator. I've located the offending pole but lack any way of getting it
> fixed on such short notice.
>
> In a quiet non-contest topband session, my rig's noise blanker does a very
> decent job eliminating the 120Hz impulses. I have to operate many kc away
> from any loud locals but it's effective. In a low-power contest like NAQP
> SSB the rigs noise blanker is still useful although not a cure-all.
>
> But in a 160 contest with a huge density of loud local signals, the rigs
> noise blanker's action just mixes all the super-loud dense signals together
> and isn't really effective anymore.
>
> I read in N2NC's NCJ article, about the powerful technique of using a SDR
> with Linrad configured to not apply the noise blanker to the loud signals.
> He goes on to say "The Linrad noise blanker, combined with the 768kHz
> bandwidth of the Airspy HF+, has been a big plus when the noise pops up. It
> makes the noise a non-issue, and I notice no distortion, even on a band
> packed with strong signals". N2NC's article here:
> https://ncjweb.com/bonus-content/N2NC-Linrad/N2NC-Linrad-Main.pdf
>
> Can any topbanders familiar with Linrad, please give me some hints on this
> configuration? Either on this list or by E-mail to me.
>
> Tim N3QE tshoppa@gmail.com
>
_________________
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
|