Difference between revisions of "HERMES"
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Project Leader: Kevin M0KHZ | Project Leader: Kevin M0KHZ | ||
| − | + | Hermes is a single board Digital Up and Down Conversion (DUC/DDC) full duplex HF + 6m multi-mode transceiver. | |
| − | + | It is basically the [[MERCURY|Mercury]], [[PENELOPE|Penelope]], [[METIS|Metis]] and [[EXCALIBUR|Excalibur]] rolled into one PCB. The board communicates to an associated PC via 100T/1000T Ethernet. | |
| − | + | Hermes has the following features and facilities: | |
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* Uninterrupted coverage from 50kHz to 54MHz | * Uninterrupted coverage from 50kHz to 54MHz | ||
* Transmit and receiver image rejection > 110dB | * Transmit and receiver image rejection > 110dB | ||
* Full duplex operation, any split over entire 160m to 6m range | * Full duplex operation, any split over entire 160m to 6m range | ||
| − | * | + | * Future expansion possible to eight independent receivers using the same antenna |
* 500mW RF output on 160 – 6m amateur bands | * 500mW RF output on 160 – 6m amateur bands | ||
* Built-in high performance preamp, with a noise floor typically -135dBm in 500Hz | * Built-in high performance preamp, with a noise floor typically -135dBm in 500Hz | ||
| − | * Software-selectable | + | * Software-selectable 30dB input attenuator in 1dB steps |
* High performance receiver – same specifications as the HPSDR Mercury receiver (ie Blocking Dynamic Range typically of about 125dB) | * High performance receiver – same specifications as the HPSDR Mercury receiver (ie Blocking Dynamic Range typically of about 125dB) | ||
| − | * | + | * FPAG code can be updated via the Ethernet connection |
| − | * Seven user-configurable open-collector outputs,independently selectable per band and Tx/Rx (for relay control, etc - with sequencing via | + | * Seven user-configurable open-collector outputs,independently selectable per band and Tx/Rx (for relay control, etc - with sequencing via PC code) |
* Separate open-collector PTT connection for amplifier control, etc, with sequencer | * Separate open-collector PTT connection for amplifier control, etc, with sequencer | ||
* Microphone PTT jumper-selectable from tip or ring connection | * Microphone PTT jumper-selectable from tip or ring connection | ||
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* I2C bus connector for control of external equipment | * I2C bus connector for control of external equipment | ||
* Full QSK using the Kiss Konsole software, since digital signal processing is not used in the controlling PC for CW carrier generation | * Full QSK using the Kiss Konsole software, since digital signal processing is not used in the controlling PC for CW carrier generation | ||
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* Low-level transmitter output for transverter use (0dBm) as well as user-selectable output attenuator | * Low-level transmitter output for transverter use (0dBm) as well as user-selectable output attenuator | ||
* Stereo audio outputs at line and headphone levels | * Stereo audio outputs at line and headphone levels | ||
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* Jumper-selectable external frequency reference, with signal processing, to suit numerous GPS-locked 10MHz reference sources | * Jumper-selectable external frequency reference, with signal processing, to suit numerous GPS-locked 10MHz reference sources | ||
* Direct ribbon cable interface to Apollo 15W power amplifier, low pass filters and automatic ATU. | * Direct ribbon cable interface to Apollo 15W power amplifier, low pass filters and automatic ATU. | ||
| + | * Low noise, high efficiency, Switching Power Supply desgned by Kjell Karson, | ||
| + | * Ethernet interface supports fixed, APIP or DHCP IP address | ||
| + | * Board responds to ping and ARP requests, auto senses cable sense and connection speed | ||
[[Image:hermesapolloincase.jpg|thumb|500px|Hermes and Apollo in enclosure - photo copyright Kjell Karlsen 2010.]] | [[Image:hermesapolloincase.jpg|thumb|500px|Hermes and Apollo in enclosure - photo copyright Kjell Karlsen 2010.]] | ||
| + | ====Update 7 July 2011==== | ||
| − | + | A prototype board has been built and tested. The board is fully functional and meets or exceeds the performance of the Mercury/Penelope/Metis/Excalibur boards the design is based on. | |
| − | + | Some minor board layout issues are currently being addressed and a pre-production layout is presently being prepared. | |
| − | + | The KD5TFD and W5WC versions of PowerSDR(TM) as well as KISS Konsole have been modified to provide native Hermes support. | |
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Ken, K9VV, has a lot on information regarding Hermes on his web site here http://www.n9vv.com/hamradio.html | Ken, K9VV, has a lot on information regarding Hermes on his web site here http://www.n9vv.com/hamradio.html | ||
====Update 16 December 2009==== | ====Update 16 December 2009==== | ||
| − | [[Image:VK6APH-Hermes-Prototype-RIMG0130.png|thumb|500px|center|caption (click for larger image) photo courtesy Phil Harman VK6APH]] | + | [[Image:VK6APH-Hermes- USB Prototype - Ethernet image ASAP -RIMG0130.png|thumb|500px|center|caption (click for larger image) photo courtesy Phil Harman VK6APH]] |
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[[Apollo]] is a combined 15w PA and Low Pass Filter bank. The Apollo project is led by Kjell Karlsen LA2NI . | [[Apollo]] is a combined 15w PA and Low Pass Filter bank. The Apollo project is led by Kjell Karlsen LA2NI . | ||
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[[Category:Hermes| ]] | [[Category:Hermes| ]] | ||
Revision as of 22:10, 6 July 2011
Hermes - A DUC/DDC Transceiver
Project Leader: Kevin M0KHZ
Hermes is a single board Digital Up and Down Conversion (DUC/DDC) full duplex HF + 6m multi-mode transceiver.
It is basically the Mercury, Penelope, Metis and Excalibur rolled into one PCB. The board communicates to an associated PC via 100T/1000T Ethernet.
Hermes has the following features and facilities:
- Uninterrupted coverage from 50kHz to 54MHz
- Transmit and receiver image rejection > 110dB
- Full duplex operation, any split over entire 160m to 6m range
- Future expansion possible to eight independent receivers using the same antenna
- 500mW RF output on 160 – 6m amateur bands
- Built-in high performance preamp, with a noise floor typically -135dBm in 500Hz
- Software-selectable 30dB input attenuator in 1dB steps
- High performance receiver – same specifications as the HPSDR Mercury receiver (ie Blocking Dynamic Range typically of about 125dB)
- FPAG code can be updated via the Ethernet connection
- Seven user-configurable open-collector outputs,independently selectable per band and Tx/Rx (for relay control, etc - with sequencing via PC code)
- Separate open-collector PTT connection for amplifier control, etc, with sequencer
- Microphone PTT jumper-selectable from tip or ring connection
- Bias for electret microphones via jumper
- Four user-configurable 12 bit analogue inputs (for ALC, SWR etc)
- Three user-configurable digital inputs (for linear amplifier over temperature, etc)
- Optional in-built switch mode power supply – less than 500mA (receive) from a 13.8V supply
- I2C bus connector for control of external equipment
- Full QSK using the Kiss Konsole software, since digital signal processing is not used in the controlling PC for CW carrier generation
- Low-level transmitter output for transverter use (0dBm) as well as user-selectable output attenuator
- Stereo audio outputs at line and headphone levels
- In-built 1W stereo audio amplifier for directly driving speakers
- Direct, de-bounced connections for a Morse key (straight or iambic) and PTT
- 122.88MHz master clock, which can be phase-locked to an internal 10MHz TCXO or external frequency reference
- Jumper-selectable external frequency reference, with signal processing, to suit numerous GPS-locked 10MHz reference sources
- Direct ribbon cable interface to Apollo 15W power amplifier, low pass filters and automatic ATU.
- Low noise, high efficiency, Switching Power Supply desgned by Kjell Karson,
- Ethernet interface supports fixed, APIP or DHCP IP address
- Board responds to ping and ARP requests, auto senses cable sense and connection speed
Update 7 July 2011
A prototype board has been built and tested. The board is fully functional and meets or exceeds the performance of the Mercury/Penelope/Metis/Excalibur boards the design is based on.
Some minor board layout issues are currently being addressed and a pre-production layout is presently being prepared. The KD5TFD and W5WC versions of PowerSDR(TM) as well as KISS Konsole have been modified to provide native Hermes support.
Ken, K9VV, has a lot on information regarding Hermes on his web site here http://www.n9vv.com/hamradio.html
Update 16 December 2009
File:VK6APH-Hermes- USB Prototype - Ethernet image ASAP -RIMG0130.png
caption (click for larger image) photo courtesy Phil Harman VK6APH
Apollo is a combined 15w PA and Low Pass Filter bank. The Apollo project is led by Kjell Karlsen LA2NI .
