RBN Receiver Accuracy

[Ward Silver]

Summarized from an email on the RBN reflector - A web page maintained by Björn SM7IUN (https://github.com/bjornekelund/rbnskew) maintains a list of all receivers with 0.2ppm or less average error. This list has more than 50 entries so if you are looking for data from the most accurate receivers, these are the well-calibrated nodes.  RBN leadership is working with node hosts to improve their calibration, as well.

73, Ward N0AX

[Pete Smith N4ZR]

Bjorn's list for yesterday (UTC) covers 182 nodes, and includes both the good, the bad and the ugly (just kidding), so if you're an RBN node-op chances are good that your node's calibration will be rated.  There is a full explanation of the simple method for correcting calibration of Skimmer Server on another page on Bjorn's site, https://sm7iun.se/rbn/analytics/.  That page also includes 5-day historic data on every rated node.

I have been writing to the owners of nodes with combined high spot counts and relatively high calibration errors, to let them know about the problem and how to correct it. For operating purposes, I think 3 parts per million is probably good enough - that translates to less than 0.05 KHz on 20 meters, and still less than 0.1 KHz on 10 meters.  Since the DX cluster network rounds to 0.1 KHz, that should be pretty good for operational purposes.

73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite 
"retail" DX cluster.

On 1/25/2021 9:54 AM, Ward Silver wrote:

Summarized from an email on the RBN reflector - A web page maintained by Björn SM7IUN (https://github.com/bjornekelund/rbnskew) maintains a list of all receivers with 0.2ppm or less average error. This list has more than 50 entries so if you are looking for data from the most accurate receivers, these are the well-calibrated nodes.  RBN leadership is working with node hosts to improve their calibration, as well.

73, Ward N0AX

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[Phil Erickson]

Hi Pete,

  Is there a sorted "best to worst" link?  The only one I found had everything jumbled up.

73

Phil W1PJE

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Phil Erickson
phil.e...@gmail.com

[Pete Smith N4ZR]

Hi Phil - The author of the calibration routines and web pages made a conscious decision not to have a page ranking nodes from worst to best, to avoid finger-pointing and hurt feelings.  At least his lists are alphabetical.

73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite 
"retail" DX cluster.

To view this discussion on the web visit https://groups.google.com/d/msgid/hamsci/CAAZaqEvLDs1yu-29Lswz8NrRZK1-LtrvhkOqzwRdqOHpcfSqvA%40mail.gmail.com.