[Boatanchors] OT: N.A. SDRs Suitable to Monitor 630 Meters (472-479 KC)

[Bill Cromwell]

Hi David,

I have used SDR gear designed for the baseband (audio/sound card) 
methods and connected the output from BC-453 and RAK radios (not 
simultaneous) and I got good results. The "real" radios were taking the 
heat from the antenna end and the SDR software provided far superior 
filtering and very fine tuning that those great radios don't have. The 
BC-453 / SDR combination showed the most dramatic improvements as you 
might expect. The RAK has built-in filtering that outperforms the 
command receivers by far. Most list members probably already know that. 
The RAK also has much slower tuning - takes a lot of turns to go a short 
way up n down the spectrum. the HF command receivers tune far too fast. 
Too fast or too slow is a personal preference:)

The SDR software has built-in DSP (digital signal processing) but is 
superior to several stand alone DSP solutions (no SDR quad signals) I 
have tried. Even those give a large performance boost. Most of them, 
with and without SDR, have noticeable "latency" if you are using them 
with a transmitter. Full QSK is not going to be possible. If you are a 
"phony" that won't matter. If you already have a computer with a sound 
card it will cost nothing, zero, nada, zilch to play with it. And no 
modifications to the radios.

73,

Bill  KU8H

On 2/12/19 9:35 AM, David Stinson wrote:
> List of SDRs in North America which are usable to
> monitor
> the 630 Meter (472-479 KC) MW Ham Band.
> Those which didn't "make the cut" were nearly all
> overwhelmed
> by Common Mode noise from using long wires or
> other such
> antennas unsuitable for Medium Wave.  Others were
> misconfigured or incapable of receiption below 500
> KC.
> 
> The receivers on this list were checked early
> Feburary 2019.
> Of course, their configurations, antennas or
> operation
> can change without notice at any time.
> 73 Dave AB5S
> P.S.  What's up with Alberta?
> They have an active Longwave club?
> 
> Alberta, CA
> http://kiwisdr.ve6slp.ca:8173/
> http://ciw321.cfars.ca:8174/
> http://kiwisdr.ve6slp.ca:8173/
> http://va6ok.ddns.net:8073/
> http://kiwisdr.ve6slp.ca:8173/
> http://173.209.121.35:8062/
> http://173.209.121.35:8062/
> http://75.152.120.27:8073/
> 
> Arizona
> http://no1dsdr.ddns.net:8073/
> 
> British Columbia
> http://kiwisdr.ece.uvic.ca:8073/
> 
> California
> http://198.40.45.23:8072/
> 
> Colorado
> http://n6gn.no-ip.org:8073/
> http://n6gn.no-ip.org:8074/
> Dominican Republic
> http://dr.twrmon.net:8073/
> 
> Georgia
> http://wv5l-sdr.dynu.net:8073/
> 
> Hawaii
> http://72.235.217.245:8073/
> 
> Idaho
> http://ka7u.no-ip.org:8073/
> http://ka7u.no-ip.org:8074/
> http://ka7u.no-ip.org:8075/
> 
> Kansas
> http://64.136.200.36:8073/
> Maine
> http://rx2.wa2zkd.net:8073/
> 
> Maryland
> http://sdr.hfunderpants.com:8073/
> Massachusetts
> http://rosslloyd.asuscomm.com:8073/
> http://kiwiab1ld.ddns.net:8073/
> http://kiwisdr.baloney.fun:8073/
> 
> Montana
> http://108.174.127.102:8073/
> 
> Nevada
> http://74.82.153.108:8073/
> http://12.29.214.134:8073/
> 
> New York
> http://rx.jimlill.com:8073/
> North Carolina
> http://n4ttn.ham-radio-op.net:8073/
> http://chimay.homelinux.org:8073/
> 
> Ohio
> http://ohioswl.com:8073/
> 
> Pennsylvania
> http://kiwisdr.dlinkddns.com:8073/
> http://radiodxing.ddns.net:8073/
> http://k3fef.com:8073/
> 
> Texas
> http://50.26.40.209:8073/
> 
> Vermont
> http://73.68.202.112:8073/
> 
> Virginia
> http://n4tvc.zapto.org:8073/
> 
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-- 
bark less - wag more