[CQ-Contest] 2 bands, 2 sigs, same station
r_bakalov at yahoo.com
Tue Mar 5 08:01:40 EST 2013
Why do you want to move the data at all? Build a CW Skimmer infrastructure in the Amazon Cloud and do all the storage and processing there. The benefit is unlimited computing resources to process and analyze the data. In fact, this is the logical place to run the RBN at first place as this way you can burst CPU resources during major contests.
On Mar 4, 2013, at 15:32, Pete Smith N4ZR <n4zr at contesting.com> wrote:
> Well,as the saying goes, "Easy to do is easy to say." Recording 7 x 192 KHz bands generates about 1.3 terabytes of data over a 48-hour contest. We did it last fall, and the only really practical way to move the data from the recording stations to the contest adjudicators was by mailing the disk drives.
> CW Skimmer's waterfall is quite wonderful, but Skimmer Server, VE3NEA's variant for simultaneous Skimming with the QS1R receiver, does not have a waterfall.
> 73, Pete N4ZR
> Check out the Reverse Beacon Network at
> blog at reversebeacon.blogspot.com.
> For spots, please go to your favorite
> ARC V6 or VE7CC DX cluster node.
> On 3/4/2013 12:17 PM, David Gilbert wrote:
>> Well, if we're talking about CW Skimmer itself and not the RBN, the CW Skimmer waterfall display would clearly show if simultaneous CQ's were being sent by the same station. You could even, of course, record an entire contest and play it back later to look for such behavior if the RBN spots were to raise suspicions. All it would require is that the CW Skimmers feeding the RBN be set up to record.
>> Dave AB7E
>> On 3/4/2013 5:45 AM, Pete Smith N4ZR wrote:
>>> Sorry, Charly, but the only way to do that is to review multi-band time-stamped recordings - otherwise you can'tbe sure that the transmissions overlap. CW Skimmer software is cumulative, so exactly when a spot is sent is not an indication of precisely when the station was heard.
>>> The use of multi-band recordings is in its infancy, but much like radar in police cars, I expect that its presence will actually deter abuses.
>>> 73, Pete N4ZR
>>> Check out the Reverse Beacon Network at
>>> blog at reversebeacon.blogspot.com.
>>> For spots, please go to your favorite
>>> ARC V6 or VE7CC DX cluster node.
>>> On 3/1/2013 5:57 PM, Charles Harpole wrote:
>>>> The first advantage I can think of for the Skimmer is that it is now
>>>> possible to see that some stations are CQing on two bands at exactly the
>>>> same moment in time.
>>>> I am surprised that some are not showing up as being on three or more bands
>>>> at the same moment. Contesting has gone further into the pig lot.
>>> CQ-Contest mailing list
>>> CQ-Contest at contesting.com
>> CQ-Contest mailing list
>> CQ-Contest at contesting.com
> CQ-Contest mailing list
> CQ-Contest at contesting.com
More information about the CQ-Contest