[CQ-Contest] Blind Mode for N1MM Bandmap

Pete Smith n4zr at contesting.com
Thu Oct 21 11:56:28 PDT 2010

I think Dave, Tor et al have raised an interesting issue.  There are 
really 3 cases here:

1.  local CW Skimmer in blind mode - signals are not decoded, and so 
Skimmer doesn't know which signals are runners, and which are S&P.  In 
this case, it is simply a very good band-scope, well-integrated with 
your transceiver(s).

2.  A local Skimmer in decoding mode, telnetting spots to software (such 
as N1MM Logger) that is set up in "blind mode" to discard the callsign 
and substitute a marker on a bandmap.  The Skimmer's machine 
intelligence would be deciding which were runners, and discarding the 
rest.  This would potentially be a big advantage for S&P rate, if you 
knew in advance which signals were runners, and could jump from one to 
the next with a keystroke or two.  Such operation should be classed as 

3.  A remote Skimmer (or the RBN), with software as above.  I'm not sure 
how much advantage the "remoteness" would confer, beyond engineering 
ease, but I think it would be still be illegal for non-Assisted 
stations, for the reason in 2 above.  If you are going to operate 
Assisted, why not use Skimmer or the RBN with full capabilities?

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000

On 10/21/2010 11:53 AM, RT Clay wrote:
> --- On Thu, 10/21/10, BobK8IA at aol.com<BobK8IA at aol.com>  wrote:
>> From: BobK8IA at aol.com<BobK8IA at aol.com>
>> Subject: Re: [CQ-Contest] Blind Mode for N1MM Bandmap
>> To: xdavid at cis-broadband.com, cq-contest at contesting.com
>> Date: Thursday, October 21, 2010, 6:49 AM
>> Dave,
>> > From a "assisted vs unassisted query", why would this
>> be any different than
>>   getting info of a stations presence from a bandscope,
>> panadapter etc?   
>> You're substituting a blip on a bansdscope vs an asterisk
>> on a bandmap.
>> Granted, with some radios it is easier to change to the
>> proper freq via a 
>> bandmap, but not all.
>> Seems perfectly legal for unassisted operation to me.
> Does not seem legal to me with current rules if you take the frequencies from a remote source (telnet). Blips on a bandscope are fundamentally different from frequencies taken from telnet: For example, with what you suggest, you could take DX spots from a skimmer in Europe during a 160m contest. That way you would know where the EU DX stations  are on the band even before the band opened to you in North America. In such a contest that would be a huge advantage even if it didn't include callsign information.
> On the other, just marking signals on the bandmap from your local receiver (with no cw decoding) is fine, I currently do that.
> Tor
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