Ortac_Rx Licencing

This 4th release Ortac_Rx for AirSpy receivers (ver, is still in beta and has a limited run time and will refuse to run after 1st Sept 2023.  A new version should appear on the RFBits.com website before the expiration date.

The intention is that the uncrippled software will be released under the donation-ware model for individual radio enthusiasts and educational uses. For other organisations and for commercial use, users will be required to purchase a licence.

Individuals and Educational Establishments Donation-ware.

Ortac_Rx will be offered free of charge and fully functional to individuals and educational establishments. However the author does ask that if the user continues to find the software useful, that a suitable donation to RFBits fund is made. This will encourage the author to continue future development of the programme.

Commercial and Other Organisations.

The Author requests that Commercial and other non-educational organisations pay £50 per seat for the use of Oratc_Rx.

Donations / payments can be made via the paypal

Ortac_Rx changelog (major) to

1 RTL synth re-work, now correctly tune to within 10Hz even at 1800MHz.
2 Increased ppm adjustment range for RTL.
3 Fix THGR122 temp sensor decode, now works for temp below zero.
4 Changes to threading should help programme lock up on slower machines.
5 Added link to download page in menu.
6 Kill date now 1 Mar 2023. to

1 Numerous small changes.
2 Kill date now 1 Sept 2023.