91
« Last post by navionic on November 27, 2023, 03:27:21 AM »
Hi to all of you.
I've been a Humminbird user for over 15 years and have recently got the Helix 7 GPS GN4 unit which comes with the XTM 9 HW MSI 150 T Transducer. I was woundering if there is a better transducer to improve the side imaging as I operate in salt water in depths of 25metres (82ft) and my other unit which is a Hummingbird 798ci SI HD seems to give a better image.
I notice that the Helix 8 has what seems a bigger transducer( XNT 9 HW T) but according to Humminbird, it is not combatable with the Helix 7.
I would be interested in your ideas and comments.
Best wishes
John.
Just thoughts. I hope you didn't forget to switch to salt water mode.
92
« Last post by OceanAID on November 26, 2023, 11:31:55 AM »
Hi,
I am connecting my laptop with Autochart to my Helix 9 SI+ unit using the AS EC CHART - PC NETWORKING CABLE. I was hoping that this connection would give be access to the raw .son files that area being written, so that I can process these files in real-time for a program I am writing.
I wanted to see if someone with more experience with autochart know where files are being written, and if its possible to access the .son files being written in real-time.
I feel that the .son files are converted into the .aci files right away so it might not be possible.
To give a bit more information about my project, I am writting a program to convert .son -> .xtf then process the image side imaging data and run target recognition on it. It would be great to get this working on a humminbird sonar and make it available.
Thanks,
Andrew
93
« Last post by Still Afloat on November 26, 2023, 12:55:14 AM »
Thanks for the reply.
I currently have a Helix 7 DI and two Helix 7 SI. The SI units are networked, the DI is not. Can’t say that I have noticed any difference in the DI between the two. More important, I rarely spot any fish in SI or DI modes so I just use these modes to learn structure in new waters.
So you are saying I can see a 9” rock at 25m or a 9” fish at 25m? If the later, I’d really have to see it to believe it.
94
« Last post by oschi on November 25, 2023, 08:03:29 PM »
Much better SI. Real DI, the 7's DI is just left and right SI overlayed. Higher ping speed. 9" pings 25x per sec at 25m SI, results in better resolution.
If you want the best SI and real DI go for it.
95
« Last post by Still Afloat on November 25, 2023, 05:09:06 PM »
So the million dollar question, actually $1000 question; Is it worth it to upgrade from the Helix 7 to a Helix 9?
It looks like the difference in the Helix 9 just a larger screen, WiFi and two cards slots. MegaLive is lagging the competition and I’m not counting on any significant developments during the Gen 4 life cycle. So MegaLive is not a motivator.
Even with the Helix 9 currently marked down $600 off I’m not yet motivated enough to pull the trigger. Am I missing something?
96
« Last post by John Coward on November 23, 2023, 04:33:27 AM »
Hi Rickie.
That is one thing I haven't tried. So thank you for that infomation. The boat is now layed up for winter, so I can't try this out, but it's the first thing I'll be doing when we get back out on the water.
Best wishes
John.
97
« Last post by rnvinc on November 21, 2023, 07:58:47 PM »
Find the CHIRP Configuration Menu (I think it’s under the Setup tab) and play with the CHIRP sweep frequencies ... maybe even try setting the upper and lower sweep range to 1kHz (2d HW example of 205kHz-206kHz) ...
Lots of experimental options and still keep the same Transducer Selection choice ...
The default CHIRP sweep ranges are simply what HB engineers “think” is the best sweep range selection for “most” users ...
Rickie
98
« Last post by John Coward on November 21, 2023, 09:58:09 AM »
I could only compare them on 200Hz as the 798 transducer would not operate on the higher freqency.
99
« Last post by oschi on November 21, 2023, 05:59:22 AM »
What frequencies do you compare?
100
« Last post by John Coward on November 21, 2023, 05:38:34 AM »
Hi Ricky. Thanks for your reply. I have tried another tranducer from my Humminbird 798. Transducer model XTM 9 HDSI 180 which worked but didn't improve the image. This same transducer on my 798 on 200hz gives a slightly better image than the Helix. There seems to be better contrast and more definition to the image, so it left me thinking that there was a better transducer for the Helix. Don't get me wrong, the unit is great. The 798 came with the standard transducer which was disapointing and failed after only a few week, so i upgraded to the XTM 9 HDSI 180 which works really well. so my thinking was to do the same with the Helix.
Best wishes
John.
|
Recent Posts