GPS for Icom radios

[maine50]

I was using a stand alone old GPS (micrologic) to feed position to my 3 Icom radios (icom 802 SSB,Icom VHF 602 and Icom VHF 502. Would like to use separate GPS position sensor (not Chartplotter). Can anyone suggest a decent quality GPS puck/sensor to use.

[maine50]

I should add that I need NMEA 183 not nmea 2000

[Paul L]

Any nmea 0183 gps that outputs the GGA sentence should work.

[Wotname]

I understood the M802 requires GGL and that other "positional" sentences aren't accepted by the M802 - however this info may be outdated...

Here is a similar old thread http://www.cruisersforum.com/forums/...ems-27992.html

[Paul L]

Originally Posted by Wotname

I understood the M802 requires GGL and that other "positional" sentences aren't accepted by the M802 - however this info may be outdated...

Here is a similar old thread http://www.cruisersforum.com/forums/...ems-27992.html

I thought it was GGL also. Its been a long time since I setup my 802, so I looked in the manual and it calls for GGA.

[Wotname]

^^ thanks Paul, good to know!
I wonder if it has changed over the years (software updates?????), my ex 802 was early this century .

[smac999]

if you want a marine one. the garmin 19x is still availible in 183. (I think hvs model), you need to add the resistor it comes with.

if you want a non marine one. probably a few other cheap choices.

but not many 183 gps antennas around anymore.

[Paul L]

Originally Posted by Wotname

^^ thanks Paul, good to know!
I wonder if it has changed over the years (software updates?????), my ex 802 was early this century .

Unfortunately the manual is often wanting.

[Sail Away 3]

Originally Posted by maine50

I was using a stand alone old GPS (micrologic) to feed position to my 3 Icom radios (icom 802 SSB,Icom VHF 602 and Icom VHF 502. Would like to use separate GPS position sensor (not Chartplotter). Can anyone suggest a decent quality GPS puck/sensor to use.

I installed an AIS transceiver, it outputs 0183, 2000, as well as a USB. An added benefit to the position data for commercial shipping vessels. It is a SiTec and is stand alone.

[thunderhoof]

I have been using the GlobalSat BU-353-S4 USB GPS receiver for some time. It works well through fiberglass /cored deck. Globalsat makes this with several different interfaces if you can't use USB.

[flyingnut40]

I bought this one.
It has all the right specs.


https://www.ebay.com/itm/marine-ship....c100005.m1851


Hope it works.....

[CarinaPDX]

Similar to the above, but with GLONASS and Galileo support, is this one: https://www.ebay.com/itm/TOPGNSS-RS2...O/273823871436. You can get either of these for about 1/3 less through Aliexpress.com. See this page: Are all GPS antenna's created equal? - Page 2 - Cruisers & Sailing Forums

It is not just a matter of putting out the GGA sentence, which these do. Check the baud rate that can be received by all three of your radios, and buy a GPS that is configured to a common rate. While it is possible to reconfigure the baud rate, among other things, it requires some effort, knowledge, and a serial to USB adapter. The "official" baud rate for NMEA 0183 is 4800 baud, while for NMEA HS (high speed) is 38,400. Many GPS receivers ship with 9600 baud set and may not work with your equipment, so check first.

Another thing to watch for is the voltage. Some GPS receivers need 5V while a few others have a 12V to 5V internal circuit. It isn't a big problem as inexpensive 12V to 5V converters are readily available, but it is simpler to get the package.

Greg

[CarinaPDX]

If you want a good, used GPS receiver I have an old GlobalSat MR-350 I no longer need, along with a 12v to 5v power supply. It operates at 4800 baud. Brochure: https://data2.manualslib.com/pdf3/57...lsat/mr350.pdf PM me and we can agree on an appropriately low price...


Greg

[Moontide]

I second the recommendation for the GlobalSat BU-353-S4 USB GPS. Have used for several years with a windows computer. Costs all of $35 or so and does not require any other adapters or separate power supply. Comes with a CD with drivers to handle the NMEA0183 signal. Can also download the drivers and install program from online if you don't have a CD drive. It currently runs OpenCPN, a couple of other nav and GPS programs, and via OpenCPN provides GPS data for a Standard Horizon GX2150 VHF radio that has AIS receive capability. If you want to get the computer and radio to talk to each you other will probably need a $10 RS232 to USB adapter.



I use the free GPSGate program which allows several programs to access the GPS data simultaneously.


I think this is probably one of the easiest and inexpensive ways to solve the OP issue.


Bill

[CarinaPDX]

Confusion reigns...

Old marine radios universally need the GPS input via NMEA 0183, which is emphatically not USB. NMEA 0183 version 2 and above uses a differential input of a low voltage signal (+5V/0V) - technically an RS-422 serial connection. Older versions use 12V RS-232 connections. Care must be taken in interconnecting these. USB is something entirely different.

[Edit: a radio or GPS puck is not going to be able to use an RS-232 to USB adapter for this - it isn't capable of running the supporting driver for the controller inside the cable.]

Greg