IGate - Revision history

KM5VY: Reverted edits by Reverse22 (talk) to last revision by Oh2mqk

2011-12-31T01:44:22Z

Reverted edits by Reverse22 (talk) to last revision by Oh2mqk

Anonymous at 23:02, 30 December 2011

2011-12-30T23:02:25Z

Oh2mqk: link updates

2009-11-13T12:08:30Z

link updates

UR3IRS: /* Internet Gateway: IGate */

2009-02-17T17:23:52Z

‎Internet Gateway: IGate

W6DTW at 07:06, 21 August 2008

2008-08-21T07:06:32Z

We7u: /* External Links */

2007-11-26T16:53:10Z

‎External Links

We7u at 21:23, 15 August 2007

2007-08-15T21:23:11Z

KM5VY: Migrate content from old wiki

2007-08-13T23:16:54Z

Migrate content from old wiki

New page

===Internet Gateway: IGate===

An IGate is a type of [[Gateway|gateway]] [[AprsStation|APRS station]]. It is similar to a network router in
the TCP/IP world. It's job is to selectivly allow packets to cross between the [[InternetSystem|APRS-IS]] and the
local RF network.

An IGate will require the following capabilities:

* RF receive and optionally send
* TNC
* Internet access and a connection into APRS-IS
* a computer or processor of some sort to implement the IGate operation

IGate implementations have to conform to the standards expected by the APRS-IS system.

====RF --> APRS-IS====
Going from RF to APRS-IS is the simpler of the two operations. The IGate station needs to
successfully connect to APRS-IS which requires a rudimentary password. Packets received
via RF are sent out on the APRS-IS side. IGate implemenations take care of reformatting
the packet for the APRS-IS.

====APRS --> RF====
Gating to the RF side is a little trickier. The technical parts are not difficult but
the limitations of the RF channel and regulatory restrictions attendant with radio transmissions
make things more difficult. Many IGate implementations will only send to RF those packets
destined for stations that have been recently heard on the RF side or that are in a list of
desgnated destination stations. As an IGate operator you are responsible for
the content of the packets transmitted by your station on RF.

====External Links====
*[http://www.aprs-is.net/igates.htm IGate Implementations]
*[http://www.aprs-is.net/igatecfg.htm IGate Specifications]

← Older revision		Revision as of 01:44, 31 December 2011
Line 22:		Line 22:
	*[http://www.aprs-is.net/Specification.aspx IGate Specifications]		*[http://www.aprs-is.net/Specification.aspx IGate Specifications]
	*[http://www.aprs-is.net/q.aspx Q Construct (Injection ID)]		*[http://www.aprs-is.net/q.aspx Q Construct (Injection ID)]
−
−
−	~~[http://thetvtopc.com/Reverse_Cell_Phone_Lookup_Number reverse phone lookup]~~
−
−	~~[http://www.prlog.org/11289974-phone-number-lookup-verizon-phone-number-reverse-lookup-to-get-information-you-need-quickly.html phone number lookup]~~

← Older revision		Revision as of 23:02, 30 December 2011
Line 22:		Line 22:
	*[http://www.aprs-is.net/Specification.aspx IGate Specifications]		*[http://www.aprs-is.net/Specification.aspx IGate Specifications]
	*[http://www.aprs-is.net/q.aspx Q Construct (Injection ID)]		*[http://www.aprs-is.net/q.aspx Q Construct (Injection ID)]
		+
		+
		+	[http://thetvtopc.com/Reverse_Cell_Phone_Lookup_Number reverse phone lookup]
		+
		+	[http://www.prlog.org/11289974-phone-number-lookup-verizon-phone-number-reverse-lookup-to-get-information-you-need-quickly.html phone number lookup]

@@ Line 19: / Line 19: @@
 ====External Links====
-*[http://www.aprs-is.net/igates.htm IGate Implementations]
+*[http://www.aprs-is.net/ClientSoftware.aspx IGate Implementations]
-*[http://www.aprs-is.net/igatecfg.htm IGate Specifications]
+*[http://www.aprs-is.net/Specification.aspx IGate Specifications]
-*[http://www.aprs-is.net/q.htm Q Construct (Injection ID)]
+*[http://www.aprs-is.net/q.aspx Q Construct (Injection ID)]

@@ Line 5: / Line 5: @@
 An IGate will require the following capabilities:
 * RF receive (and optionally send)
-* Terminal Node Controller aka TNC (may be hardware or software)
+* [[Terminal Node Controller]] aka [[TNC]] (may be hardware or software)
 * Internet access and a connection to the Internet
 * A computer or processor of some sort to implement the IGate operation

← Older revision		Revision as of 16:53, 26 November 2007
Line 31:		Line 31:
	*[http://www.aprs-is.net/igates.htm IGate Implementations]		*[http://www.aprs-is.net/igates.htm IGate Implementations]
	*[http://www.aprs-is.net/igatecfg.htm IGate Specifications]		*[http://www.aprs-is.net/igatecfg.htm IGate Specifications]
		+	*[http://www.aprs-is.net/q.htm Q Construct (Injection ID)]

@@ Line 2: / Line 2: @@
 An IGate is a type of [[Gateway|gateway]] [[AprsStation|APRS station]].  It is similar to a network router in
-the TCP/IP world.  It's job is to selectivly allow packets to cross between the [[InternetSystem|APRS-IS]] and the
+the TCP/IP world, or to a "voting receiver" in a wide-area radio repeater network.  The IGate's job is to selectively allow packets to cross between the [[InternetSystem|APRS-IS]] and the local RF network.
 local RF network.
 An IGate will require the following capabilities:
-* RF receive and optionally send
+* RF receive (and optionally send)
-* TNC
+* Terminal Node Controller aka TNC (may be hardware or software)
-* Internet access and a connection into APRS-IS
+* Internet access and a connection to the Internet
 * A computer or processor of some sort to implement the IGate operation
-IGate implementations have to conform to the standards expected by the APRS-IS system.
+IGate implementations have to conform to the standards expected by the [[InternetSystemAPRS-IS system]].
 ====RF --> APRS-IS====
-Going from RF to APRS-IS is the simpler of the two operations.  The IGate station needs to
+Going from RF to APRS-IS is the simpler of the two operations.  The IGate station needs to successfully connect to APRS-IS which requires a rudimentary password.  Packets received via RF are sent out on the APRS-IS side.  IGate implementations take care of reformatting the packet for the APRS-IS.
 successfully connect to APRS-IS which requires a rudimentary password.  Packets received
 via RF are sent out on the APRS-IS side.  IGate implementations take care of reformatting
 the packet for the APRS-IS.
-====APRS --> RF====
+====APRS-IS --> RF====
-Gating to the RF side is a little trickier.  The technical parts are not difficult but
+Gating to the RF side is a little trickier.  The technical parts are not difficult but the limitations of the RF channel and regulatory restrictions attendant with radio transmissions make things more difficult.  Many IGate implementations will only send to RF those packets destined for stations that have been recently heard on the RF side or that are in a list of designated destination stations.  As an IGate operator you are responsible for the content of the packets transmitted by your station on RF, and you should coordinate with your local or regional APRS technical coordinators to ensure that an outbound RF IGate is desirable and won't actually cause problems by creating packet duplication and/or collisions.
 the limitations of the RF channel and regulatory restrictions attendant with radio transmissions
 make things more difficult.  Many IGate implementations will only send to RF those packets
 destined for stations that have been recently heard on the RF side or that are in a list of
-desgnated destination stations.  As an IGate operator you are responsible for
 the content of the packets transmitted by your station on RF.
 ====External Links====