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Query: Hermes SDR
Links: 6 | Categories: 0
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The Hermes-Lite is a low-cost direct down/up conversion software defined amateur radio HF transceiver based on a broadband modem chip and the Hermes SDR project. It is entirely open source and open hardware, including the tools used for design and fabrication files. Over 300 Hermes-Lite 2.0 units have been successfully built.
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The author has build the Hermes-Lite SDR v1 and v2 versions describing with a very accurated text and picture the process. Additionally has documented measurements for each component
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Demonstrates ZeusSDR, a WebGL-native station console for _OpenHPSDR_ radios, including Hermes-Lite 2 and ANAN-class transceivers. The software integrates a 2D and 3D WebGL/WebGPU panadapter with click-to-tune functionality, alongside native FT8/FT4 and FreeDV digital voice modes, eliminating the need for external software like WSJT-X or virtual audio cables. It features a protected transmit chain with SWR-trip and TX-timeout, and supports _PureSignal_ linearization on Protocol 2 for enhanced signal quality. The console incorporates a broadcast TX chain with a noise gate, 10-band EQ, compressor, exciter, bass, reverb, and VST3/Audio Unit hosting for advanced audio processing. A comprehensive logbook is included, offering contact history, a 3D NASA globe, DX radar, and analytics for DXCC/WAS/grids, with ADIF and LoTW integration. Amplifier panels for RF2K-S, KPA500, and SPE Taurus are also provided. ZeusSDR supports both OpenHPSDR protocols (P1 + P2) and utilizes WDSP from Thetis. It is available for Windows, macOS, and Linux, with a public listening feature allowing others to view live waterfalls and use virtual receivers with Zeus DSP, including NR, NB, ANF, AGC, and filters. The software is open-engine, following the PowerSDR–OpenHPSDR–Thetis lineage.
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Quisk is a Software Defined Radio (SDR) and is the software that controls my receiver and transmitter. Quisk can control the HiQSDR, Hermes-Lite hardware, SoftRock hardware, SDR-IQ by RfSpace
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Demonstrates a practical solution for remote reception, the Transceiver-KiwiSDR Bridge, a free Windows utility by GW3JVB. This software links a local amateur radio transceiver to a remote **KiwiSDR** receiver, allowing the KiwiSDR to automatically track the transceiver's VFO frequency and mode. This capability proves invaluable for mitigating local noise, enhancing reception, or simply leveraging the superior receive capabilities of a remote station located globally. The bridge supports a diverse range of transceivers through COM port/CAT connections or **TCI** over a network. Specific compatibility extends to popular models like the Icom IC-7300, systems utilizing the TCI Protocol (such as Thetis, Expert Electronics, Apache Labs ANAN, and Hermes Lite 2), and many radios supported by Hamlib. Experimental Yaesu CAT options are also included, broadening its utility for various shack configurations. Key features encompass automatic mode changes, updates to RX filter bandwidth, and even IC-7300 PBT/filter adjustments. The application integrates a browser extension for Chrome, Brave, and Microsoft Edge, and offers an optional KiwiSDR audio mute during local transmission, ensuring a seamless operating experience. The compact view keeps the interface unobtrusive, with full settings readily accessible.
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HamVNA presents an alternative Vector Network Analyzer (VNA) software tailored for the Hermes SDR RX/TX board, enhancing its utility for analyzing antenna systems and radio circuits. The software processes measurement data from two distinct sources: direct acquisition via the Hermes hardware, leveraging fixtures like Sam Wetterlin's Series Fixture or reflection bridge, or by importing existing TouchStone format files (*.s1p, *.s2p) from other VNA hardware. It operates on Win2000/WinXP/Vista/Win7 platforms, supporting both 32 and 64-bit architectures. The program incorporates standard Open-Short-Load calibration for reflection mode and Short Circuit calibration for transmission mode, with the capability to save and reload calibration data. A key distinguishing feature is its RLC Fit function, which automatically generates an equivalent RLC circuit matching the impedance-vs-frequency curve of the Device Under Test (DUT), a capability noted as unique among VNA software. This function allows control over circuit complexity via an 'Order' slider. HamVNA also supports remote calibration, enabling the removal of coaxial cable effects from measurements for clearer analysis, as demonstrated with an 80m vertical antenna example. The software is an open-source project, distributed under the MPL v.2.0 license, with both the installation package and source code available for download.