[CALV-AUXCOMM] Calvert AUXCOMM Meeting - June 20 7PM PSB EOC

[Shawn Donley]

A reminder of our upcoming meeting this week.  Thursday, 7pm at the Public Safety Building EOC.
 
Based on feedback, we'll have a demo on the newly installed radios at this EOC including sending some Winlink traffic. 
 
We might try some MT63 so see if it works with audio going through RemoteRig terminals. Would need someone to bring their MT63-capable go-kit to the meeting, or a volunteer to stay at the home QTH and operate MT63 from there; maybe Packet Winlink P2P too..
 
Currently we do not have the means to "direct connect" audio to the EOC radios (actually, to the RemoteRig terminals) for MT63, so it's hold the radio microphone to the computer speaker and the radio speaker to the computer microphone.  
 
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I'd like to eventually update the EOC system to give us not only wired MT63 but also VARA FM capability.   VARA was not around when we first laid out the system. I doubt VARA FM's multi-frequency audio would make it through the RemoteRig's and Ethernet LAN unscathed, but it would be interesting to run an experiment.  
 
 
The long term solution for VARA FM, MT63 and Packet might be inexpensive brick-type PC's at the tower shelter (and EOC equipment rooms) with a good external sound card.  The transparent RS-232 COM port on the RemoteRig's would be used to send and receive text from the brick PC.  Simple terminal program at the EOC end; brick PC running FLDIGI for MT63 or UZ7HO's SoundModem for packet (no more h/w TNC needed).  The RemoteRig's COM channel is currently used to connect with the Kantronics KPC-3+ TNC's located with the radio RF decks and works quite well at 9600 bps, but it supports higher speeds.
 
An alternative, if our LAN bandwidth can handle it, would be a TCP/IP  connection via our LAN to the brick PC which would be running Remote Desktop, with the controlling PC at the EOC.  Or perhaps some version of  a Remote-Desktop-like software can communicate over the RemoteRig's COM port?
 
Anyone want to start thinking about/engineering such an update?   The current system diagram is attached.  Recommend printing and saving a copy for your records.
 
tnx
 
Shawn
N3AE
Calvert ARES EC
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