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Fleetwood

External GPS antenna

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I'm looking for an external, rail-mountable, active GPS antenna with a NMEA 0183 output. Don't need a display as it will interface with my PC and other displays.

Any recommendations? ( I thought this topic had been discussed a while ago but I've searched the forums without success.)

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I have a GPS 19X HVS from Garmin connected to my PC (with Adrena running as routing software) and I am very happy with it. Fast, accurate an reliable.

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I have a GPS 19X HVS from Garmin connected to my PC (with Adrena running as routing software) and I am very happy with it. Fast, accurate an reliable.

Good to hear, this is the one I have been thinking of.

What's the mount like? I guess I'll need a rail-mount.

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It comes with a deck-mount and a pole mount. The other gps on board is a raymarine deck mounted and it is loosing the signal on a too regular basis (don't know if the problem is the deck mount or the gps itself but what is sure is that if somebody is seated above the antenna, the signal is lost). My Garmin module is on a "T-Pole" fixed on the transom, that keeps the rail clean and the antenna clear, useful if you have teak seats in the back pushpits ;-)

If you have additional antennas (iridium, vhf, wifi amplifier, etc) the T-Pole is a nice solution, if not rail-mount is the way to go in my opinion. You will just need to buy something like that: http://www.scanstrut.com/products/product-page.php?range_id=10050&type=Sailboats

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Take a look at this option:

Airmar GH2183 GPS Heading Sensor 10Hz
Product ID: AM1101-000 MFG ID: GH2183-10
Airmar GH2183 10Hz combines GPS positioning and highly accurate heading information in one compact antenna. The GH2183 eliminates the need to install a GPS antenna above deck and a heading sensor below deck. Only one installation above the deck is required, saving installation time and money.

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Take a look at this option:

Airmar GH2183 GPS Heading Sensor 10Hz
Product ID: AM1101-000 MFG ID: GH2183-10
Airmar GH2183 10Hz combines GPS positioning and highly accurate heading information in one compact antenna. The GH2183 eliminates the need to install a GPS antenna above deck and a heading sensor below deck. Only one installation above the deck is required, saving installation time and money.

I have one of these as back up to my primary antenna. It is a great unit, I highly recommend it.

 

The bottom of the antenna can thread onto any 1" NPT rail mount, and then you need their cable (specify NMEA 2000 or NMEA 0183). They come in a few different lengths, so order to fit your installation. Then that will plug into a small converter box that takes the GPS output and pushes it out to a USB plug for your PC. That will run you $125 for the WS-UBS. Alternatively, you might want to push out a signal to your VHF so you can have DCS working, in which case you are going to want the WS-UBSN which has a UBS output for your PC and then separate 0183 output. That box is more, around $380. Both of those are in addition to the antenna.

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I have a GPS 19X HVS from Garmin connected to my PC (with Adrena running as routing software) and I am very happy with it. Fast, accurate an reliable.

Good to hear, this is the one I have been thinking of.

What's the mount like? I guess I'll need a rail-mount.

I can 2nd the recommendation. I have one interfaced to my VHF. Never a problem with it. Mine is mounted under the deck so it's invisible and no clutter.

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Take a look at this option:

Airmar GH2183 GPS Heading Sensor 10Hz
Product ID: AM1101-000 MFG ID: GH2183-10
Airmar GH2183 10Hz combines GPS positioning and highly accurate heading information in one compact antenna. The GH2183 eliminates the need to install a GPS antenna above deck and a heading sensor below deck. Only one installation above the deck is required, saving installation time and money.

 

Pretty bloody expensive, >$700! Even the basic (GPS only) is >$200.

 

Still leaning towards the Garmin (~$150), as I've since discovered that my primary problem isn't my old steam-driven GPS, but the driver for the serial/USB interface to my PC. I just upgraded from Vista (shit) to Windows 7 (OK so far). My old serial/USB cable doesn't have a 7 driver so I had to get a new cable but its driver causes NMEA communication to slow to a crawl (apparently a common problem). There's another driver which is supposed to work OK; I'll try it out tomorrow.....

I'll use the Garmin as a primary and my old one as back-up. At least the PC doesn't think the GPS is a mouse anymore!

 

Ain't PC/instrument communications fun!!

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what kind of serial to USB did you get?

 

this is one thing that it's best not to get cheap on - I typically use a Digi Edgeport 1 - generally around $70, but sometimes less on ebay.

 

if you want to go wireless with your old GPS, it might be better to use serial to bluetooth rather than wifi.

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My plan is to go wifi soon, probably the Shipmodul Miniplex-2wi, but I'd like to get the current setup working in the interim.

Also don't like to admit defeat!

My serial/USB is a generic one, probably a part of the problem. I'll look at a better one.

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10hz ( at low cost, under $200)is a big step forward for a yacht but your kit will need to process the glonass and the navstar strings to make use of them or it will just ignore them I assume?

Reading the manual it will calculate at 10hz but only output at 6hz if you use only one sat system, thats still way better then a 1 hz system

Most manufacturers never want to explain that

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I question how much you even need and external unit anymore as my current Standard Horizon HX851 DSC unit will pickup a single in the basement of my house

 

My oldest Magellan Pioneer GPS was always hard pressed to work in anything less than perfect a sky-view

 

gotta love progress :)

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what kind of serial to USB did you get?

 

this is one thing that it's best not to get cheap on - I typically use a Digi Edgeport 1 - generally around $70, but sometimes less on ebay.

 

if you want to go wireless with your old GPS, it might be better to use serial to bluetooth rather than wifi.

Fixed the problem by downloading the latest (Vista) driver for the USB cable, works with Windows 7!

 

Under deck antenna sounds very interesting; the fewer thins on the rail and the fewer deck penetrations the better.

Any problems encountered with them so far?

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I second micha571, this would be my choice for what you want.... Digital Yacht GPS 150 Dualnav - http://www.digitalyacht.co.uk/product_info.php?products_id=11706

 

If you don't trust either of us, here is the Panbo Review below

 

http://www.panbo.com/archives/2013/10/nmea_0183_lives_digital_yacht_gp150_dualnav_furuno_if-nmea2k2_converter.html

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Won't work with Carbon hulls, and won't work if there is a lot of water on deck. But otherwise... good to go.

 

what kind of serial to USB did you get?

 

this is one thing that it's best not to get cheap on - I typically use a Digi Edgeport 1 - generally around $70, but sometimes less on ebay.

 

if you want to go wireless with your old GPS, it might be better to use serial to bluetooth rather than wifi.

Fixed the problem by downloading the latest (Vista) driver for the USB cable, works with Windows 7!

 

Under deck antenna sounds very interesting; the fewer thins on the rail and the fewer deck penetrations the better.

Any problems encountered with them so far?

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Water on the deck is standard on our boat! Generally that's also when its important to know where one is....

Sounds like either the Garmin GPS 19X HVS or the DY GPS 150 Dualnav.

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Couple of options

Tacktick use these and just rebadge them - expensive but good - http://www.sanav.com/gps_receivers/gps_receivers.htm

 

OR
You could grab the GME AIS receiver unit and use the NMEA GPS data - as well as gain the AIS benefits.

 

and it's NMEA 0183 and 2000 data outputs will future proof your purchase.

 

GME AIS GPS NMEA data with AIS RECEIVE $219

http://www.gme.net.au/products/marine-navigation-systems/marine-navigation-systems-1/AISR120

 

GME AIS GPS NMEA with AIS transmit and receive $549

 

resellers here.

 

http://www.chsmith.com.au/Electronics/Marine-GPS-AIS.html

 

http://www.boatingcentral.com.au/gme-aisr120-ais-receiver/

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where did you buy it and how much does it cost?

 

 

did you look at the dimensions?

 

it's pretty big...

yes, but it does L1 and L2 signal processing...and I can't see if Garmin GPS 19X HVS or the DY GPS 150 Dualnav do. I have 2 of the garmin 17 that do L1 and L2 processing at 5Hz updates but was looking into upgrading to 10Hz or even 20Hz. The DY GPS 150 Dualnav is only a 6Hz updates (if I am reading the manual correctly) so it does not buy me much

I cant see on the spec sheet where it says it can process L2 data nor any garmin equipment. That would up the accuracy a lot.

Can you point me to where it says that?

thanks

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where did you buy it and how much does it cost?

 

 

did you look at the dimensions?

 

it's pretty big...

yes, but it does L1 and L2 signal processing...and I can't see if Garmin GPS 19X HVS or the DY GPS 150 Dualnav do. I have 2 of the garmin 17 that do L1 and L2 processing at 5Hz updates but was looking into upgrading to 10Hz or even 20Hz. The DY GPS 150 Dualnav is only a 6Hz updates (if I am reading the manual correctly) so it does not buy me much

I cant see on the spec sheet where it says it can process L2 data nor any garmin equipment. That would up the accuracy a lot.

Can you point me to where it says that?

thanks

Some of the other systems on the Hemisphere website offer L1/L2 capability and also 10 & 20 hz channels. We actually use a pair of Trimble SPS351's for our survey work.

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where did you buy it and how much does it cost?

 

I have no idea. It's all leased equipment as part of our Sat Com service. Broadband internet, phone, fax etc.

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I second micha571, this would be my choice for what you want.... Digital Yacht GPS 150 Dualnav - http://www.digitalyacht.co.uk/product_info.php?products_id=11706

 

If you don't trust either of us, here is the Panbo Review below

 

http://www.panbo.com/archives/2013/10/nmea_0183_lives_digital_yacht_gp150_dualnav_furuno_if-nmea2k2_converter.html

Who has one, and what has your experience with it been like. Looks like a really nice product, but unproven manufacturer.

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I second micha571, this would be my choice for what you want.... Digital Yacht GPS 150 Dualnav - http://www.digitalyacht.co.uk/product_info.php?products_id=11706

 

If you don't trust either of us, here is the Panbo Review below

 

http://www.panbo.com/archives/2013/10/nmea_0183_lives_digital_yacht_gp150_dualnav_furuno_if-nmea2k2_converter.html

Who has one, and what has your experience with it been like. Looks like a really nice product, but unproven manufacturer.

 

I have a digital yacht AIS, works like a clock... more than I can say for the three Standard Horizon handhelds I have that seem to have some sort of failure every 2 years or a part break a day out of the box.

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I have a garmin 19 Hvs set to update at 10 hz and feeding into my pc running Expedition. It is mounted under deck as near to the bow as we can get it. Works well, never any problems.

Bob

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Installed the Garmin 19, works just fine so far. Had to slow it down to 1Hz for the rest of my systems, but hopefully can speed it up as I upgrade them.

Interesting about the Standard Horizons, Our GX 2100 VHF/AIS has worked great for the past couple of years, as did its predecessor for the last 15 years!

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Pretty bloody expensive, >$700! Even the basic (GPS only) is >$200.

 

That unit is also a VERY accurate 3-Axis Compass with 3-Axis Accelerometer & 3-Axis Rate Gyros. That heading sensor is the same one NKE uses in their top of the line installs (although they update the firmware to better integrate with their systems).

 

Look at this as a top notch compass AND GPS solution. This is our PRIMARY sensor for both GPS and heading (other than our old Ritchie globemaster).

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This sounds good, GPS and Glonass in one antenna, high baud rate, 10Hz updating, and way not as ridiculous expensive as the Airmar GH2183:

 

http://www.digitalyacht.co.uk/product_info.php?products_id=11706

This is what I use with very good results so far. Especially like that it appears that there is no internal filtering trying to smooth out all the data - I suspect that Garmin uses some form of filter and DR's between 'fixes' as have had overshoot etc from their antennas. You can see the 150 bouncing around when zoomed right in - which would be expected with accuracy and resolution from non-survey grade GPS. Rather that than the boat sitting nicely in one spot - not real data.

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I'm not sure how you can configure it for your other instruments. But I have been using the Globalsat BU353 usb units for ages. I sailed across the pacific with one and my laptop as my primary navigation. They work perfect with opencpn etc. They use NMEA 0183. Make sure to get the S4 so it works with W8. Cost $37

 

http://www.ebay.com/itm/Free-Shipping-GlobalSat-BU353-S4-BU-353-SiRFIIII-USB-GPS-Receiver-SiRF-Star-IV-/181533162818?pt=GPS_Devices&hash=item2a44383d42

 

There are a few versions, look on the global at site. There should be one that is setup to output to NMEA devices. But a good nerd may be able to get the USB version to output to standard 0183 instruments. I gave it a go and failed, but I used a $25 garmin 16x lvs to work with my C120 rather than the $300 one raymarine tried to sell me.

 

The BU353 units I have used were much faster and more accurate than any marine instrument spec GPS receivers that came on any boat I or my mates have owned. Also forget rail mounting it. The faster speed etc is all apparent just by plugging it in anywhere inside a fiberglass boat, but they are waterproof.

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