[d-star] Fwd: [YaesuSystemFusion] UDRC™ adds D-STAR to the DR-1X -- Available for Dayton Hamvention

[Mark Thompson]

----- Forwarded Message -----
 From: "'John D. Hays' john at hays.org [YaesuSystemFusion]" <YaesuSystemFusion at yahoogroups.com>
 To: YaesuSystemFusion at yahoogroups.com 
 Sent: Monday, May 9, 2016 4:28 PM
 Subject: [YaesuSystemFusion] UDRC™ adds D-STAR to the DR-1X -- Available for Dayton Hamvention
   
    When Yaesu offered their DR-1X Fusion repeater to US clubs for $500  (updated information), the Northwest Digital Radio Club (not part of NW Digital Radio company) purchased one and put it on the air in Edmonds, WA as NW7DR. It wasn’t long before John (K7VE) looked at the external accessory adapter and wondered if the repeater could also do D-STAR.

At first, the experiments ran into a known lockup condition when using an external controller in combination with Yaesu Fusion Digital mode. With the latest generation firmware the DR-1X is able to provide D-STAR, Analog, and Fusion Digital all on the same channel on a per transmission switched basis.  Mode control is accomplished using GPIO pins on the Raspberry Pi.NW Digital Radio looked at the Raspberry Pi system and soon decided that a combination control board with integrated CODEC could be built as a hat for 40 PIN GPIO headers on the Raspberry Pi and thus is born the Universal Digital Radio Controller or UDRC.With the addition of the UDRC, the DR-1X will operate in these configurations.   
   - With the latest 1.00 family of firmware on the DR-1X      
      - D-STAR/Analog

   - With the latest 1.10 family (after December 2015) on the DR-1X      
      - D-STAR/Analog
      - D-STAR/Digital Fusion
      - D-STAR/Digital Fusion/Analog

The UDRC does not transcode between D-STAR and Fusion, it allows the DR-1X to repeat D-STAR transmissions and use ircDDBGateway to communicate with stations, linked reflectors and repeaters, STARnet Digital Groups, etc.  Analog, Digital Fusion, and D-STAR are switched at the repeater on a per transmission basis.The UDRC is designed as a simple to install addition to the DR-1X, however, NW Digital Radio has kept the experimenter in mind by providing various headers to allow straightforward hardware modification for integration with other hardware and applications. The built-in CODEC also will be available via a amateur packet radio standard mini DIN-6 port for software developers to adapt other modes, e.g. Packet Radio, VOIP (Asterisk/IRLP/Echolink), Codec-2, … Additionally, all GPIO and audio pins are available as solder through pads.Ordering is available now at http://nwdigitalradio.com/product/udrc/ with mail order delivery after Dayton Hamvention, and they will be available at the Dayton Hamvention (Booth EH0515, just past the Yaesu Booth near the opening to the outside sales area) for immediate delivery while supplies last (additional production is scheduled for delivery).

NW7DR has been testing the UDRC integration on the DR-1X for D-STAR for nearly a year. It has been running with Digital WIRES-X (via RF) on America-Link and with a UDRC on busy D-STAR reflectors for weeks without a lockup (Firmware v1.10D).  Running on both a WIRES-X Room and a D-STAR reflector at the same time is not a recommended configuration, but this was a test for robustness.  When running multi-mode on a repeater, it is recommended that users turn on BCLO (Busy Channel Lockout) and CTCSS/DCS squelch to avoid transmitting over an existing transmission running under a different mode.

When attached to a DR-1X, the UDRC and Raspberry Pi are powered by the DR-1X via the accessory jack.

John D. Hays
K7VE
PO Box 1223, Edmonds, WA 98020-1223   
  __._,_.___     Posted by: "John D. Hays" <john at hays.org>     
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