Glossary
transponder scan
transponder scan is an automated sweep of a satellite's frequencies to enumerate currently active channels and their tuning parameters, which the catalog classifies as a data product category. In Datadory's catalog of 1,744 datasets, SatIndex Daily Transponder Scan Database: product name; and SatIndex: coverage.temporal describes are working examples.
What is transponder scan?
A transponder scan is an automated sweep of a satellite's frequencies to enumerate currently active channels and their tuning parameters.
SatIndex publishes the results as daily scans plus a nightly automated AI scan.
In this catalog it appears concretely: - SatIndex Daily Transponder Scan Database: product name;. - SatIndex: coverage.temporal describes — "daily scans, nightly automated AI scan and dated per-channel update stamps". - SatIndex: estimated_size — "8,621 channels across 17 satellites (7,043 TV; 2,871 HD)".
SatIndex: coverage.temporal describes is the second reference point worth knowing: "daily scans, nightly automated AI scan and dated per-channel update stamps". Reading the two together shows how much variation sits underneath one shared label.
Why does transponder scan matter when choosing a dataset?
A label on a listing is not a deliverable. Teams that license on the strength of a product-name match routinely find the shipped files cover a narrower slice than they assumed, and backfilling history afterwards costs more than the license ever did.
The failure mode is concrete: the label appears in a listing, the delivered files tell a different story, and the gap surfaces mid-project when fixing it is most expensive.
You rarely have to take a vendor's word for it. 82.4% of the 1,744 datasets Datadory catalogs are free to access, and SatIndex Daily Transponder Scan Database: product name; lets you inspect the real artifact before any budget is committed.
How do you evaluate transponder scan in a data source?
Treat every claim of this attribute as testable:
- Open SatIndex Daily Transponder Scan Database: product name; and compare its listing against the delivered artifact before paying for a commercial equivalent.
- Open SatIndex: coverage.temporal describes and confirm its record — "daily scans, nightly automated AI scan and dated per-channel update stamps" — against the files you actually receive.
- Open SatIndex: estimated_size and confirm its record — "8,621 channels across 17 satellites (7,043 TV; 2,871 HD)" — against the files you actually receive.
See the term applied to real records: cable-satellite data.
Related terms
Adjacent concepts worth reading next: - channel directory - transponder - transponder change log - transponder parameters
Frequently asked questions
What is an example of transponder scan?
SatIndex Daily Transponder Scan Database: product name; is the clearest example in this catalog. Its listing is the reference point for this pattern. Across all 1,744 datasets Datadory averages a quality score of 7.81 out of 10, so a named example can be weighed rather than trusted blindly.
Is data described as "transponder scan" free to use?
Treat access and permission separately. 82.4% of the 1,744 datasets in this catalog are free to access, but 235 are freemium and 61 are paid outright, so confirm both the price and the license on the exact distribution before building on it.
How do I verify a source really provides transponder scan?
Open SatIndex Daily Transponder Scan Database: product name; next to SatIndex: coverage.temporal describes and compare the promise with the download. Field definitions are verified for 1495 of 1,744 datasets (85.7%), which makes that check fast inside the catalog and manual outside it.
Datasets containing this field
Datasets containing transponder scan
5 datasets carry transponder scan in the catalog. Open one, count the fields, judge for yourself.
KingOfSat European Satellite Zapping & Directory
Pos · Satellite · Frequency …+19 more
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