997 mph alarm

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03-17-2010, 10:26 AM
chuckauten

997 mph alarm

When trolling, sometimes the wind will slow my speed down and I hang up. There are many alarms for the 997, so why doesn't it have a setting that has a minimum setting. Say that I am trolling .8 and I don't want my speed to drop below .6, when it does, it gives me an alarm. Isn't this possible?:confused:

Thanks.

Chuck
03-17-2010, 10:56 AM
Humminbird_Greg

It could be possible Steve and would just be another software upgrade. Not sure that they will want to do it though as slow GPS speeds are still unstable due to the positioning error of the civilain GPS system, but I will pass this along and see that it is put on a "Wish List".
03-17-2010, 01:23 PM
chuckauten

Thanks Gregg. It would be a great help to us fishermen. Just another great tool for the HB units.

Chuck
03-17-2010, 02:10 PM
Cane Pole

Quote:

Originally Posted by Humminbird_Greg

It could be possible Steve and would just be another software upgrade. Not sure that they will want to do it though as slow GPS speeds are still unstable due to the positioning error of the civilain GPS system, but I will pass this along and see that it is put on a "Wish List".

But, these errors are overcome by good programming algorithms.;)
03-17-2010, 08:45 PM
slimeyslab

Quote:

Originally Posted by Cane Pole

But, these errors are overcome by good programming algorithms.;)

I just Googled the word "algorithms". I am still confused. I will just have to take your word on it CP..:D
03-17-2010, 08:59 PM
BamaMan

Algorithms=

NOUN:
A step-by-step problem-solving procedure, especially an established, recursive computational procedure for solving a problem in a finite number of steps.
03-17-2010, 09:27 PM
hotdawg

yep what bama said
03-18-2010, 10:12 AM
Humminbird_Greg

True but only up to a certain point CP. While good programming can be used to root-sum-squared out most of the inherent inaccuracies in the GPS system (like: satellite clock errors, satellite orbit errors, atmospheric delays, multipath errors and receiver noise) it cannot help with RF noise issues that can cause inaccurate position measurements. Plus the government will not allow us to use the more accurate L2 signal (Precise code or “P-code”), so we are stuck with what we have. Now as the folks that run the GPS system upload more intelligent programming to the satellites, launch more standard satellites and geostationary satellites like the three WAAS satellites in orbit now (only two are fully operational), and as GPS Receivers adapt to the increased numbers of satellites and even gain the ability to use satellite systems from other countries: slow speed reading accuracy will increase as will the overall accuracy of any GPS Receiver that can take advantage of these.

Now, we could use some of those fancy algorithms and make a best guess as to your speed and course, but do you really want to go by a guess for this?
03-18-2010, 10:26 AM
Cane Pole

Quote:

Originally Posted by Humminbird_Greg

True but only up to a certain point CP. While good programming can be used to root-sum-squared out most of the inherent inaccuracies in the GPS system (like: satellite clock errors, satellite orbit errors, atmospheric delays, multipath errors and receiver noise) it cannot help with RF noise issues that can cause inaccurate position measurements. Plus the government will not allow us to use the more accurate L2 signal (Precise code or “P-code”), so we are stuck with what we have. Now as the folks that run the GPS system upload more intelligent programming to the satellites, launch more standard satellites and geostationary satellites like the three WAAS satellites in orbit now (only two are fully operational), and as GPS Receivers adapt to the increased numbers of satellites and even gain the ability to use satellite systems from other countries: slow speed reading accuracy will increase as will the overall accuracy of any GPS Receiver that can take advantage of these.

Now, we could use some of those fancy algorithms and make a best guess as to your speed and course, but do you really want to go by a guess for this?

I know these things as stated above. I taught this is school. I got my GPS training with Trimble and they provided my course work outlines.;) Now, at slow speeds, I doubt I would run over anything below .6 mph. A calculated estimate speed/direction would be better than a dount. I can't "aim" a donut.My Garmin does pretty good at these lower speeds.

reference: Trimble - GPS Tutorial

respectfully,

Tom
03-18-2010, 10:48 AM
Humminbird_Greg

Understand CP. Maybe we will come out with an additional accessory that works like an electronic compass or something so that we can always show a directional arrow.
03-18-2010, 10:51 AM
Cane Pole

Quote:

Originally Posted by Humminbird_Greg

Understand CP. Maybe we will come out with an additional accessory that works like an electronic compass or something so that we can always show a directional arrow.

I would love an add on flux gate compass.:):):):):):)
03-21-2010, 02:12 PM
chuckauten

Gregg, I have been running some tests with my 997 and Garmin 72 units side by side. I compared the accuracy of speed and most important, the units showing "0" mph (varies signal). Did not see the 997 lose signal once, where as the 72 lost the signal many times. Traveling .8 to 1.2 mph. The HB seems to have better programing on any signals fluctuating. Not once was the HB showing "0". The feature requested should not be a major programming task. Would be a great tool for trolling in lakes with logs on the bottom and from what I have seen on other units, no one has this feature. Could be another first for HB.

Chuck
03-21-2010, 02:32 PM
redbeard144

can u hook up the i-pilot and 997 to run together
03-23-2010, 11:38 AM
Humminbird_Greg

I understand Chuck. I have entered it on a Wish List on a web site that I know of that they look for feature suggestions from.

Currently there is no way to connect an i-Pilot and a 997 unit together and I’m not sure that there will be a way to do so in the future. It’s been suggested though.
03-23-2010, 01:56 PM
jaxsprat

Quote:

Originally Posted by Humminbird_Greg

I understand Chuck. I have entered it on a Wish List on a web site that I know of that they look for feature suggestions from.

Currently there is no way to connect an i-Pilot and a 997 unit together and I’m not sure that there will be a way to do so in the future. It’s been suggested though.

Well i,m hoping that in another year or so when I buy my I-pilot HB will have a connection from I-pilot to 997/8 or whatever so instead of just 3 tracks on I-pilot I will be able to run it from 997? and run any /all tracks I have on FF. Wouldn.t that be great to just let FF control your boat as u troll along deep ledges,creek channels etc. Why not?? - u-HB already has the Tech to do it-why maybe that's what that extra connection is for on back of all our units, come on bring it out for 2011 you guys HB know u can do it.....;)