[hpsdr] Thetis V2.8.11 with Hermes for RedPitaya

[Tsutsumi Takehiko]

All;

Please be aware that Pavel Demin, who is leading RedPitaya application including OpenHPSDR, provided the solution to upgrade his codes from Hermes 4 DDC configuration to Angelia 5 DDC configuration.  Now, we are able to work with Thetis V.2.8.11.  All Thetis feature are operable including Diversity, Stereo Diversity, Dual receiver, Puresignal e.t.c.

Thus, this topic is closed.

However, RedPitaya 14bit model can not support any more DDC usage due to its FPGA capacity constraint. if OpenHPSDR SDR programs change DDC number requirements more than 5 DDCs knowing well known Angelia board i.e. ANAN-100D supports 7 DDCs, RedPitaya 14bit model can not work with them.

I hope you will recognize this limitation of RedPitaya 14 bit model and will implement measures to prevent my concern stated above.

Finally, thank you very much for providing excellent SDR programs for a long time for my hobby.

Regards,

take

de JA5AEA
Windows 10 版のメール<https://go.microsoft.com/fwlink/?LinkId=550986>から送信

差出人: Tsutsumi Takehiko<mailto:ja5aea at outlook.com>
送信日時: Tuesday, December 1, 2020 7:12 AM
宛先: Helmut Oeller<mailto:dc6ny at gmx.de>; hpsdr at lists.openhpsdr.org<mailto:hpsdr at lists.openhpsdr.org>
件名: RE: [hpsdr] Thetis V2.8.11 with Hermes for RedPitaya

Helmut,

Ok,  I understand your understanding about RedPitaya though I have different perception.

Thank you.

take

de JA5AEA

Windows 10 版のメール<https://go.microsoft.com/fwlink/?LinkId=550986>から送信

差出人: Helmut Oeller<mailto:dc6ny at gmx.de>
送信日時: 2020年11月30日 20:37
宛先: Tsutsumi Takehiko<mailto:ja5aea at outlook.com>; hpsdr at lists.openhpsdr.org<mailto:hpsdr at lists.openhpsdr.org>
件名: Re: [hpsdr] Thetis V2.8.11 with Hermes for RedPitaya


Hi Take,

Pse recall: the Redpitaya is a third-party product. To run it under OpenHPSDR software, once Pavel Demin wrote an emulation of the HERMES firmware for the RedPitaya's Xilinx-FPGA. While Hermes employs only one physical frontend (ADC), but capable for multiRX (which is mandatory for the used PS algorithm), the RP uses its second ADC for PS-feedback. Due to the absense of a second ADC with coherent sampling clock HERMES can't provide the diversity function.

Due to the different FPGA codes and the RP emulation I would suspect, either you can use PS as 'Hermes clone' or diversity as 'ANAN100D-clone'.

73, Helmut, DC6NY


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