Skymap IIIC Hookup

CableRave · 05-17-2004

Has anyone had any experiance in hooking a Skymap IIIc GPS To Netstumbler. I have uploaded a photo of the skymap the way it is going to be mounted in to my airplane but would like to make me a cable foir the RS232 Connector. here's its Pin outs.

Pin 1 Differential In (RX Data)
Pin 2 Data Out (TX Data)
Pin 3 Reserved
Pin 4 Data In (Rx Data)
Pin 5 Ground (0V or -VE)
Pin 6 Reserved
Pin 7 Reserved
Pin 8 DC Power Input From power Supply + 12-28V 2 Amp (+VE)
Pin 9 Annunicator or Alarm

Says: Differential In, TX Data And RX Data Are All RS232

Thorn · 05-18-2004

RS-232 is only half the battle. As far running it with NetStumbler, it requires NMEA output. If it does NMEA then it will work.

Thorn · 05-18-2004

By the way, are you asking for what the cross connects are for the cable? If so, it is:

Code:

Skymap IIIc 		DB9F		DB25F

2 Data Out		2		3
4 Data In (Rx Data) 	3		2
5 Ground (0V or -VE)	5		7

Most laptop serial ports are DB9, but the DB25 is included for legacy units.

"Differential In" is not a standard RS-232 signal. It may be Skymap's name for Ready-To-Send (RTS) or Clear-To-Send (CTS). Both of these signals are standard RS-232 and are used for hardware handshaking signaling. They may be required, as may other cross-connected pins within the plugs.

If you're not sure about this, I'd suggest getting a cheap RS-232 analyzer. $15 at Radio Shack.

CableRave · 05-18-2004

Thanks for the info i will be building me a cable this week. Found a utility that will talk to the skymap for editing its notepad.

wrzwaldo · 05-18-2004

Differential (DGPS) is as referenced in appendix 4 of the manual. Complete with connectivity instructions. You will of course need a DGPS receiver.

CableRave · 05-20-2004

Whats a DGPS Reciver

Dutch · 05-20-2004

Quote:

Originally Posted by CableRave

Whats a DGPS Reciver

Another n00b wanting to be spoonfed ???

Have you read your manual AT ALL ??
Wrzwaldo gave you a reference to the section of the manual explaining DGPS connectivity. A good guess is that the manual might explain what DGPS is, and what a DGPS Receiver is...

Another option would be to use google, and SEARCH for the term DGPS Receiver...

But the BEST option for you seems to be to get the various cardboard boxes out from the attic, stuff ALL electronic devices which uses more than 1,5 volts into them, and send them back to the store. Because frankly, if you can't be bothered to read your manuals, you have no need of the devices...

Just my 0.02€'s worth...

Dutch

Redman247 · 05-20-2004

Quote:

Originally Posted by CableRave

Whats a DGPS Reciver

That is a Damn shame!

/From the supplied PDF wrzwaldo posted:

APPENDIX 04: Differential Functions (Skymap IIIC only)
Your Bendix/King unit has been designed to enable it to make use of Differential GPS (DGPS).

What Is DGPS?

Perhaps you should RTFM, before coming here with your bib on expecting to be spoonfed.

wrzwaldo · 05-20-2004

Quote:

Originally Posted by CableRave

Whats a DGPS Reciver

Are you putting this in an airplane? Did you do your ground school? Will you be piloting an airplane? If you answered yes to any of these questions please post what locations you will be flying in so I can stay the fuck away... According to your first post you own an airplane? Please, for the sake of humanity sell it and but a good pair of walking shoes!

CableRave · 05-20-2004

Are you putting this in an airplane? Yes I am putting it in an airplane but not as a navigation device but as a portable situational awareness device.

Did you do your ground school? Yes I took ground school but it dose not cover GPS systems as they are a supplementary system and not required equipment Yet

Will you be piloting an airplane? Yes I pilot airplanes and yes I own an airplane I will be flying all over the us, canada, mexico this summer.

Just because I don’t understand what a DGPS receiver is don’t make me a bad pilot Yes I have read the manual don’t mean I have to understand it everypart of it. I am not looking to be spoon feed and if you feel the need go ahead and flame away.

wrzwaldo · 05-20-2004

Nawww. Most of my last post was for the humor factor. But if you were to search you would find out what a DGPS receiver is. I think the manual covers it as well.

05-18-2004	#2 (permalink)
Thorn Did you do the math? Join Date: Apr 2002 Location: Villa Straylight Posts: 10,351	RS-232 is only half the battle. As far running it with NetStumbler, it requires NMEA output. If it does NMEA then it will work. __________________ Thorn "Read Altas Shrugged. Compare it to today. Repeat as necessary"

05-18-2004	#3 (permalink)
Thorn Did you do the math? Join Date: Apr 2002 Location: Villa Straylight Posts: 10,351	By the way, are you asking for what the cross connects are for the cable? If so, it is: Code: Skymap IIIc DB9F DB25F 2 Data Out 2 3 4 Data In (Rx Data) 3 2 5 Ground (0V or -VE) 5 7 Most laptop serial ports are DB9, but the DB25 is included for legacy units. "Differential In" is not a standard RS-232 signal. It may be Skymap's name for Ready-To-Send (RTS) or Clear-To-Send (CTS). Both of these signals are standard RS-232 and are used for hardware handshaking signaling. They may be required, as may other cross-connected pins within the plugs. If you're not sure about this, I'd suggest getting a cheap RS-232 analyzer. $15 at Radio Shack. __________________ Thorn "Read Altas Shrugged. Compare it to today. Repeat as necessary"

05-18-2004	#5 (permalink)
wrzwaldo I amuse you? Join Date: Dec 2003 Posts: 9,141	Differential (DGPS) is as referenced in appendix 4 of the manual. Complete with connectivity instructions. You will of course need a DGPS receiver. Last edited by wrzwaldo : 05-18-2004 at 03:36 PM.

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05-18-2004	#4 (permalink)
CableRave Registered Member Join Date: Apr 2004 Posts: 24	Thanks for the info i will be building me a cable this week. Found a utility that will talk to the skymap for editing its notepad.

05-20-2004	#6 (permalink)
CableRave Registered Member Join Date: Apr 2004 Posts: 24	Whats a DGPS Reciver

05-20-2004	#10 (permalink)
CableRave Registered Member Join Date: Apr 2004 Posts: 24	Are you putting this in an airplane? Yes I am putting it in an airplane but not as a navigation device but as a portable situational awareness device. Did you do your ground school? Yes I took ground school but it dose not cover GPS systems as they are a supplementary system and not required equipment Yet Will you be piloting an airplane? Yes I pilot airplanes and yes I own an airplane I will be flying all over the us, canada, mexico this summer. Just because I don’t understand what a DGPS receiver is don’t make me a bad pilot Yes I have read the manual don’t mean I have to understand it everypart of it. I am not looking to be spoon feed and if you feel the need go ahead and flame away.

05-20-2004	#11 (permalink)
wrzwaldo I amuse you? Join Date: Dec 2003 Posts: 9,141	Nawww. Most of my last post was for the humor factor. But if you were to search you would find out what a DGPS receiver is. I think the manual covers it as well.