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garmin 942sx or furumo 1971f?

Old 08-13-2019, 01:08 PM
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Default garmin 942sx or furumo 1971f?

i still consider myself a novice fisherman, but do appreciate good equipment. i got a boat WAY overdue for electronics (currently a 20 yr old $300 setup ) and want to stay with a transom mount setup. i am pretty certain on the airmar tm185 for finding fish offshore. just need any input on multi-console? these are about the screen size i want in the $1,000 range? both quality units that work with this chirp transducer. is either hands down better, or is ther another multi-console setup i should consider?




Old 08-13-2019, 01:17 PM
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Both are excellent units.

The Garmin will have built in US Coastal G3 Blue charts and G3 lake Vu charts.
The Furuno does not ship with built in charts...one will need to add C-Maps chats.

The Garmin can use a wide range of radar units.
The Furuno can only use the DRS4W Wifi radar.
Old 08-13-2019, 01:30 PM
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Originally Posted by semperfifishing View Post
Both are excellent units.

The Garmin will have built in US Coastal G3 Blue charts and G3 lake Vu charts.
The Furuno does not ship with built in charts...one will need to add C-Maps chats.

The Garmin can use a wide range of radar units.
The Furuno can only use the DRS4W Wifi radar.

i won’t ever use lake charts, and no immediate plans for adding radar. i have a feeling you just scratched the surface in differences. a little curious on anyone with a side by side comparison? again, i have no experience with either, i just know as a stand alone in that size and price range, these are the 2 that seem to fit with my plans.


Old 08-13-2019, 02:10 PM
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Originally Posted by nuccifilms View Post



i won’t ever use lake charts, and no immediate plans for adding radar. i have a feeling you just scratched the surface in differences. a little curious on anyone with a side by side comparison? again, i have no experience with either, i just know as a stand alone in that size and price range, these are the 2 that seem to fit with my plans.



As Gil noted, both are good units.
The Furuno will have to have charts added..so more $ to be spent there.

I like the Quick draw feature on the Garmin units...and with the Garmin it can have side scan added with an additional black box.

Ford and Chevy here....best to go to a store and have some hands on use with each..





Old 08-13-2019, 02:15 PM
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I have a 942xs

What I like:
-dock to dock auto routing
-ability to plot on my phone and upload to plotter
-plotter gets firmware and software updates via phone app
-text messages and incoming calls show up on my plotter which is nice if I don’t hear my phone rinf
-community updates

what I don’t like:
slow compared to the Axiom I had before but the Axiom is the fastest thing out there by far.
Old 08-13-2019, 05:42 PM
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with what the TM185C can grab, plus what is actually down there. . .that's the bulk of the equation for me. i played a few youtube clips. i think i like that 942sx has customizable overlays on the screen. it's great for a few key important parameters i always want there. i'd also go with a bigger screen, if only i had the console space for a flush mount. . . this is so much like buying a laptop. something to help productivity, not fall in love with. i'm going into it, knowing it's depreciative value with next years models.


Old 08-13-2019, 07:47 PM
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Had a lot of different units through time. Put 2 Garmin 942 units on our new boat...first time using Garmin. Meh. Not favorably impressed. The Simrad and Lowrance units we’ve had seemed easier to use, and the mapping seemed better.
Old 08-14-2019, 04:41 AM
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I actually have both (except it’s a 1242 and 1871F combo) on the same console.

i would take the furuno over the garmin any day. Easier interface, auto download of weather and tide forescast when connected to WiFi. The c-map charts are 10x better than the bluechart g3 which lacks a lot of details. Better auto routing. WiFi radar installed and overlays works very well. The furuno seems very high quality interface and modern. The smaller furuno renders charts faster and the fishID / sonar with airmar b75m chirp transducer is a great combo.

software updates on the furuno are a breeze and work every time. My experience.



Last edited by Omarf4; 08-14-2019 at 06:30 AM.
Old 08-14-2019, 08:57 AM
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wow, pictures and all. the 9" shrinks a little bit next to a 12". all posts have been great, but for someone to actually have both in side by side use, that's hitting pure pay dirt for me. . . keep in mind, if you read the whole post, i'm replacing a (+20 year old) $200 fishfinder from walmart, going straight to the trash. i hear everything you say, but i'm looking to go with the same transom mount space for the transducer. i don't feel like cutting a hole in my hull. i'll give up a little performance in that respect.
Old 08-14-2019, 11:04 AM
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Originally Posted by nuccifilms View Post
wow, pictures and all. the 9" shrinks a little bit next to a 12". all posts have been great, but for someone to actually have both in side by side use, that's hitting pure pay dirt for me. . . keep in mind, if you read the whole post, i'm replacing a (+20 year old) $200 fishfinder from walmart, going straight to the trash. i hear everything you say, but i'm looking to go with the same transom mount space for the transducer. i don't feel like cutting a hole in my hull. i'll give up a little performance in that respect.
The one I have posted is the 1871F which is a 7". The 1971F is a 9" screen.

Transom mount airmar would also work with the Furuno.
Old 08-16-2019, 07:55 PM
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We are currently running a Furuno 1971F with a TM185M and absolutely love the results.

We fish mainly for grouper/snapper in the gulf. Most frequently from 40-150 ft in search of hardbottom and ledges. So far, it’s been very impressive. We have been able to mark underway up to about 24-26 knots...it did take a good bit of trial and error with the transducer positioning.

I’d be happy to answer any other questions you might have. We’ve been using this combo for about 9 months now.

Here’s our set up...







Old 08-16-2019, 09:32 PM
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you've helped me out quite a bit, and can do further. . . i'm getting gp1971f and tm185hw combo. now, my current old transducer looks approximately where yours is showing in your pic. and i would describe that as, midpoint between the center line of the boat and the outer edge. i have a single 115hp, which i think makes this transom mount choice fairly common. my question now is, was all your trial and error of transducer positions, all other than what i believe what mine currently is, as well as what i believe your final choice to be? how big of a mounting adjustments from this end result are we talking? inches or feet?
Old 08-16-2019, 09:58 PM
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Originally Posted by nuccifilms View Post
you've helped me out quite a bit, and can do further. . . i'm getting gp1971f and tm185hw combo. now, my current old transducer looks approximately where yours is showing in your pic. and i would describe that as, midpoint between the center line of the boat and the outer edge. i have a single 115hp, which i think makes this transom mount choice fairly common. my question now is, was all your trial and error of transducer positions, all other than what i believe what mine currently is, as well as what i believe your final choice to be? how big of a mounting adjustments from this end result are we talking? inches or feet?

So one issue we ran into with our boat was that we had thru Hull Intake scoops on both sides of the keel forward of where we wanted to mount the transducer. We ultimately elected to mount the transducer on the starboard side. What we found was that the water was not very clean off the transom in any areas. The likely culprits were the through hull scoops for the livewell (port side) and the raw water wash down (starboard side). Our decision was to remove the scoop on the starboard side and forego a raw water wash down since we have a 20 gal freshwater tank. In doing so, we replaced the thru Hull fitting with a flush mount tilted element 600 watt 50/200 transducer that is running on a dedicated Furuno FCV628.

As as far as the trial and error goes, if you look in the second picture, you can see the scars where we moved the transducer a few inches inward towards the keel. We also made many adjustments up and down to the bracket. Up and down required no more holes, just had to loosen and move the bracket. We are talking a game of centimeters here. A few centimeters down and an inch or two toward the keel made this transducer read completely different underway. At first, we couldn’t get any readings when going faster than about 8 knots. Now, we are marking bottom and bait balls in 100 feet of water while doing 25 knots. Tough to beat that, in my opinion.

If if you want a little trick for verifying a good location on the transom, have someone you trust operate the boat at a speed just enough to maintain plane. Carefully look at the water as it flows directly off your transom. You’ll notice a lot of white water and cavitation toward the chines and trim tabs. Somewhere in the middle there, you’ll see what looks like smooth, clean water with very little aeration. Mark a spot with a sharpie on the top of the transom for future reference.
Old 08-16-2019, 10:30 PM
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this is such good info. i was just looking at my current old transducer and noticed my raw water outlet too is almost right in path with the transducer. however, i haven't been using my live bait well, BUT when i make the MAJOR upgrade to the 25 yr old humminbird, the stakes will be quite a bit higher for optimal transducer placement. i will definitely be studying the water off the transom prior to placement. my other thought is, i'd expect i'd getting most of my feedback at trolling speed? will trolling as priority have it's own best placement, different than being on plane?
Old 08-17-2019, 07:27 AM
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Originally Posted by nuccifilms View Post
this is such good info. i was just looking at my current old transducer and noticed my raw water outlet too is almost right in path with the transducer. however, i haven't been using my live bait well, BUT when i make the MAJOR upgrade to the 25 yr old humminbird, the stakes will be quite a bit higher for optimal transducer placement. i will definitely be studying the water off the transom prior to placement. my other thought is, i'd expect i'd getting most of my feedback at trolling speed? will trolling as priority have it's own best placement, different than being on plane?
Your scoops may not have any effect on yours. But, it’s something to look for if you’re losing your reading on plane. While trolling, that scoop shouldn’t cause you any issues.

For us, our main priority was reading while cruising out to our spots - in search of new spots. So, we had to clean the water getting to the transducer as much as possible.

At low or trolling speeds, the waterline will probably still be pretty high on the transom - so the transducer should stay in the water pretty well. Position isn’t as critical for low speed or idle. It’s when you’re planing that positioning makes a huge difference because that transducer has to continue to have good clean water over the face to read accurately. However, when you’re on plane, the very nature of a boat hull design is that a thin layer of aeration is passing under the hull called a boundary layer. The transducer has to extend slightly further down into the water to be just below that boundary layer to be most effective at High speeds.



Old 11-21-2019, 07:09 PM
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Does the Furuno unit have the GPS/Radar overlay?
Old 11-21-2019, 08:25 PM
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Originally Posted by fishpickin View Post
Does the Furuno unit have the GPS/Radar overlay?
paired with a furuno drs4w first watch radar and a heading sensor, yes.

Thats what I have. Heading sensor is the garmin steadycast on the nmea2k network. I also have the furuno drs4w radar paired with the 1871F unit. Cmap map card and can get radar overlay on the plotter.

The 1x71F Furuno units will only work with the first watch drs4w radar.
Old 11-22-2019, 04:36 AM
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Originally Posted by Omarf4 View Post


paired with a furuno drs4w first watch radar and a heading sensor, yes.

Thats what I have. Heading sensor is the garmin steadycast on the nmea2k network. I also have the furuno drs4w radar paired with the 1871F unit. Cmap map card and can get radar overlay on the plotter.

The 1x71F Furuno units will only work with the first watch drs4w radar.
Is the heading sensor a separate purchase or is it part of the unit?
Old 11-22-2019, 06:01 AM
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Originally Posted by fishpickin View Post
Is the heading sensor a separate purchase or is it part of the unit?
heading sensors are separate. If you don’t have any garmin units and purely on Furuno, the lowrance point1 gps puck worked extremely well.
Old 11-23-2019, 06:02 PM
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I love my new GP1971F. Unit is super simple to use and the screen is clear and bright. Fish finder is very good with either a fix frequency transducer or CHIRP transducer. CMap 4D charts are good too
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