Difference between revisions of "HERMES"

From HPSDRwiki
Jump to: navigation, search
(Update 7 August 2011)
Line 4: Line 4:
 
[[Image:Hardware_Block_Diagram_1_8.JPG|thumb|500px|Hardware block diagram. Click to enlarge.]]
 
[[Image:Hardware_Block_Diagram_1_8.JPG|thumb|500px|Hardware block diagram. Click to enlarge.]]
 
Project Leader: Kevin M0KHZ
 
Project Leader: Kevin M0KHZ
 +
 +
====Update 11 July 2012====
  
 
Hermes is a single board Digital Up and Down Conversion (DUC/DDC) full duplex HF + 6m multi-mode transceiver.
 
Hermes is a single board Digital Up and Down Conversion (DUC/DDC) full duplex HF + 6m multi-mode transceiver.
Line 11: Line 13:
 
Hermes has the following features and facilities:
 
Hermes has the following features and facilities:
  
* Uninterrupted coverage from 50kHz to 54MHz
+
* Continuous, uninterrupted, receive coverage from 10KHz to 55MHz.
 +
* Supports Real-Time display of entire sectrum from 0-55mHz (with suitable PC software)
 +
* Supports 7 fully independent receivers (sharing the same antenna - and with suitable PC software)
 +
* Each receiver can display 48/96/192kHz of spectrum
 +
* Blocking Dynamic Range (ARRL Method) no detectable gain compression below ADC overload
 
* 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
+
* Transmitter two-tone 3rd order IMD of -50dBc on 20m @ 400mW output
* 500mW RF output on 160 – 6m amateur bands
+
* 500mW RF output on 160 – 10m amateur bands, 350mW on 6m
 
* 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 31dB input attenuator in 1dB steps
 
* Software-selectable 31dB input attenuator in 1dB steps
* High performance receiver – same specifications as the HPSDR Mercury receiver (ie Blocking Dynamic Range typically about 125dB)
+
* High performance receiver – same specifications as the HPSDR Mercury receiver (ie Dynamic Range typically 125dB)
* FPGA code can be updated via the Ethernet connection
+
* FPGA code can be updated via the Industry Standard TCP/IP network Ethernet connection
 
* Seven user-configurable open-collector outputs, independently selectable per band and Tx/Rx (for relay control, etc - with sequencing via PC code)
 
* 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
Line 26: Line 32:
 
* Four user-configurable 12 bit analogue inputs (for ALC, SWR etc)
 
* Four user-configurable 12 bit analogue inputs (for ALC, SWR etc)
 
* Three user-configurable digital inputs (for linear amplifier over temperature, etc)
 
* Three user-configurable digital inputs (for linear amplifier over temperature, etc)
* Optional in-built switch mode power supply – less than xxxmA (receive) from a 13.8V supply
+
* Can operate from a 13.8v DC supply or +12v and +5v supplies
 +
* Jumper selected in-built low noise and high efficiency switch mode power supply designed by Kjell Karson,LA2NI – less than 600mA (receive - one receiver) from a 13.8V supply
 
* 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 operation (performance dependant on associated PC and control software)
* Low-level transmitter output for transverter use (0dBm) as well as user-selectable output attenuator
+
* Low-level transmitter output for transverter use via user-selectable output attenuator
 
* Stereo audio outputs at line and headphone levels
 
* Stereo audio outputs at line and headphone levels
 
* In-built 1W stereo audio amplifier for directly driving speakers
 
* In-built 1W stereo audio amplifier for directly driving speakers
 
* Direct, de-bounced connections for a Morse key (straight or iambic) and PTT
 
* 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
+
* Low phase noise (-140dBc/Hz @ 1kHz at 14MHz) 122.88MHz master clock,which can be phase-locked to an internal 10MHz TCXO or external frequency
* Jumper-selectable external frequency reference, with signal processing, to suit numerous GPS-locked 10MHz reference sources
+
reference
* Direct ribbon cable interface to [[Apollo]] 15W power amplifier, low pass filters and automatic ATU or [[ALEXIARES|Alex]] Antenna switch, HPFs and Tx LPFs
+
* Direct ribbon cable interface to Apollo 15W power amplifier, low pass filters and automatic ATU
* Low noise, high efficiency, Switching Power Supply designed by Kjell Karson,LA2NI
+
* Industry Standard TCP/IP network Ethernet interface supports static, APIPA or DHCP IP address
* Ethernet interface supports fixed, APIP or DHCP IP address
+
* Hermes responds to ping and ARP requests and auto senses network connection speed
* Hermes responds to ping and ARP requests, auto senses Ethernet cable connection and connection speed
+
 
  
 
[[Apollo]] is a combined 15w PA, Low Pass Filter bank and Automatic ATU. The Apollo project is led by Kjell Karlsen LA2NI.
 
[[Apollo]] is a combined 15w PA, Low Pass Filter bank and Automatic ATU. The Apollo project is led by Kjell Karlsen LA2NI.

Revision as of 21:30, 10 July 2012

Hermes - A DUC/DDC Transceiver

Hardware block diagram. Click to enlarge.

Project Leader: Kevin M0KHZ

Update 11 July 2012

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 boards rolled into one PCB. The board communicates to an associated PC via 100T/1000T Ethernet.

Hermes has the following features and facilities:

  • Continuous, uninterrupted, receive coverage from 10KHz to 55MHz.
  • Supports Real-Time display of entire sectrum from 0-55mHz (with suitable PC software)
  • Supports 7 fully independent receivers (sharing the same antenna - and with suitable PC software)
  • Each receiver can display 48/96/192kHz of spectrum
  • Blocking Dynamic Range (ARRL Method) no detectable gain compression below ADC overload
  • Transmit and receiver image rejection > 110dB
  • Full duplex operation, any split over entire 160m to 6m range.
  • Transmitter two-tone 3rd order IMD of -50dBc on 20m @ 400mW output
  • 500mW RF output on 160 – 10m amateur bands, 350mW on 6m
  • Built-in high performance preamp, with a noise floor typically -135dBm in 500Hz
  • Software-selectable 31dB input attenuator in 1dB steps
  • High performance receiver – same specifications as the HPSDR Mercury receiver (ie Dynamic Range typically 125dB)
  • FPGA code can be updated via the Industry Standard TCP/IP network 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)
  • Can operate from a 13.8v DC supply or +12v and +5v supplies
  • Jumper selected in-built low noise and high efficiency switch mode power supply designed by Kjell Karson,LA2NI – less than 600mA (receive - one receiver) from a 13.8V supply
  • I2C bus connector for control of external equipment
  • Full QSK operation (performance dependant on associated PC and control software)
  • Low-level transmitter output for transverter use via 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
  • Low phase noise (-140dBc/Hz @ 1kHz at 14MHz) 122.88MHz master clock,which can be phase-locked to an internal 10MHz TCXO or external frequency

reference

  • Direct ribbon cable interface to Apollo 15W power amplifier, low pass filters and automatic ATU
  • Industry Standard TCP/IP network Ethernet interface supports static, APIPA or DHCP IP address
  • Hermes responds to ping and ARP requests and auto senses network connection speed


Apollo is a combined 15w PA, Low Pass Filter bank and Automatic ATU. The Apollo project is led by Kjell Karlsen LA2NI.


Hermes and Apollo in enclosure - photo copyright Kjell Karlsen 2010.


Update 7 August 2011

The primary PCB layout team member of Hermes, Abhi has a blog on Hermes at http://hpsdrhermes.blogspot.com/ . --KV0S, Dave

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, N9VV, has a lot of information regarding Hermes on his web site here http://www.n9vv.com/hamradio.html

(click for larger image) photo courtesy Abhi Arunoday