out of serial ports

[mabistj]

I would like to add an SV-ADSB-472 module to my Skyview system (Classic with two displays) but I don't have any free serial ports. My serial ports used are as follows:

Serial port 1: SL-40 com
Serial port 2: SV-XPNDR-261
Serial port 3: VP-X Pro
Serial port 4: ACK E-04 ELT
Serial port 5: GPS 2020

Can any of these be connected together? Or should I just go with a portable ADSB unit instead? Any suggestions?

 

[preid]

When you say portable, I assume you mean a non dynon that is sit alone? I ended up doing just that. My ADSB is 3rd party, but with that decision comes no ADSB-IN features displayed on Skyview.

 

[GalinHdz]

Since the ACK E-04 ELT does not transmit anything to the SkyView system, I wonder if you can connect the ADS-B module to your port #4 in parallel with the ELT?

:-?

 

[DHeal]

I, too, would be interested in Galin's question. All of the ports on my RV-12's SV are in use. I would like to retain my old GPS-250 as a back-up to my new GPS-2020 but have no spare port for it. I would hate to mess up the ELT's performance tho.

 

[kurtfly]

The ELT needs a NMEA formatted GPS signal. If any of the other outputs are set to NMEA you can double up the connection match the baud rate on the ELT settings. The ACK has jumpers for Rx rate.

Or, depending on what other GPS navigator you have you can move the ELT to an unused port on it, like the GNS430.

Or, just remove the GPS position from the ELT. My many conversations with the ELT folks in the NASA hangers at OSH say the GPS only narrows search down to a few hundred feet. Also, if you are about to crash land and perform your check list you will be shutting down electrical system before impact. The GPS will not be providing any position information anyway.

 

[GalinHdz]

My many conversations with the ELT folks in the NASA hangers at OSH say the GPS only narrows search down to a few hundred feet.

Narrowing it to a "few hundred feet" may not be important to you but if I go down I want the search area to be as small as possible to increase the possibilities of being found quicker. YMMV

Also, if you are about to crash land and perform your check list you will be shutting down electrical system before impact.  The GPS will not be providing any position information anyway.

But the ELT reports the last good position it received, which with some GPS units means only 1/5 of a second before power was removed. Again, I want the search area to be as small as possible to increase the possibilities of being found quicker. YMMV

 

[maartenversteeg]

I had my ACK E-04 ELT connected to one of the additional serial outputs of my garmin 430W.

I agree with the previous answer. I cashed my homebuild on a remote airport and was unable to move beyond pushing myself out of the seat, but my ELT signal was received and my family called, they called the local authorities and within 20 minutes an ambulance was on the filed that determined that I needed to be airlifted to the hospital that was 80 miles away. Spending the night in the field at that airport, which could have easily happened if I wasn't found, wouldn't have been a good idea, so the location data in my ELT message basically saved my bacon.

 

[mmarien]

Lacking any existing sources of NMEA data streams, ACK suggests using a handheld GPS receiver. Plenty of the handhelds can be wired into the panel and provide NMEA data. I used my GPS495 for a while.

The limit of Skyview serial ports does come up once in a while. There is a poll here discussing the issue a while back. Add your info.

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