Dave This is so we can access the manuals on line aand some other things. I will check my email tomorrow inbetween moving Spencer to Ft Collins Dan ----- Original Message ----- From SeaSpace Customer Support Date Wed, 16 Aug 2006 14:46:27 -0700 To Dan Wolfe Cc SeaSpace Customer Support Subject Re: ST #1274 - GPS issues Dan, Here is the username/password for access to our protected pages: ronbrown/3960-03 Through further analysis of ST #1274, I see where Mark has already received the NMEA string from Sergio Pezoa. We have checked it out and it looks like all we can get is heading. It would be nice if we could get ZDA (date/time) and GLL (geographic position) from the Ron Brown's NMEA string. Oh well, ..... Correction to the info I gave you during our phonecon this afternoon: I've reviewed the as-built drawings and researched further the O&M manual and consulted with my experts.RB's GPS is mounted on the ANTENNA, not in the base of the radome. So, please disregard my advice to consult drawing number 70985001. The RB should consult the drawings number 70979 and 70967 on pages 292/3 in Revs J and K of the manual (you have access to Rev J online, the ship has Rev K). I find these drawings to be lacking in sufficient detail, but notice the upper components in either drawing. There are two rectangles with serial ports, one stacked on top of the other. The upper rectangle is the GPS interface. The lower rectangle is the PCU (pedestal control unit). The input from the cable harness enters the GPS unit. This is the second serial port from the left in either drawing. It is then, by default, redirected through an internal switch to the serial port on the far left and thence to the PCU input. When you run a command like "wherami", the internal switch on the GPS unit *should* redirect the output to the coax cable to the GPS head. We know that the PCU is working alright since the antenna responds to input commands and moves accordingly. We don't know if the internal switch is able to redirect output to the GPS head. Let us proceed to troubleshoot the internal switch in the GPS unit. Please have someone on the RB run this series of commands (as xtuser or teradm): % cd (this gets you to the home directory) % script gps.output % setenv ANT_DEBUG 2 % whereami (when the output is done) % (hit the Control and D keys at the same time) Send us the script gps.output Forget my earlier suggestions to check voltages on any cables. Let's see the output of whereami. I think Mark has already indicated the long term solution for the RB. "I want you to let me know when the season is over. At that time, I would like to recall the antenna and complete the hardware upgrade as should have been done prior to my involvement in the project." Let us know what happens. Kindest regards, Tony ***************************************** Tony Burunoff Project Engineer Tech Support Team SeaSpace Corp. Phone: 858-746-1160 Fax: 858-746-1199 ***************************************** ----- Original Message ----- From: "Dan Wolfe" To: "Mark Magnano" Cc: "David C Welsh" ; "Ludovic Bariteau" ; "Gary A Wick" Sent: Monday, August 14, 2006 7:53 AM Subject: GPS > Mark > > When the guys on the ship pull the radome to check the GPS antenna, do you > have any recommendations as what to check or try? Should they bring back > that antenna to Boulder? This first leg crew will be getting off this > Friday in Galveston. Anyway or reason to ship them a replacement antenna. > The ship will be docked in Galveston Aug 18-21 as far as I know. > > Thanks > Dan > >