Yet Another Cycling Forum

General Category => The Knowledge => GPS => Topic started by: Samuel D on 14 October, 2017, 09:45:26 pm

Title: Garmin eTrex data fields – what have you got?
Post by: Samuel D on 14 October, 2017, 09:45:26 pm
I have an eTrex 20 and I’m trying (not for the first time) to rationalise its operation.

If you have the same or similar device, would you care to share:
… and of course anything else you feel like telling us about your decisions. For example, I like leaving the device on the Satellite page when I’m walking with it, so that accidental operation of the joystick does nothing (but with this thread I’m interested in cycling use).

I understand your preferred data fields may change from time to time, but I’m curious what people have found useful.

Thanks!
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Pingu on 14 October, 2017, 10:35:25 pm
eTrex 30:

(https://farm5.staticflickr.com/4464/37698355161_e6462220d8_m.jpg) (https://flic.kr/p/ZrgVAH)
58 (https://flic.kr/p/ZrgVAH) by The Pingus (https://www.flickr.com/photos/the_pingus/), on Flickr

(https://farm5.staticflickr.com/4465/23845348198_cdd78e2f9a_m.jpg) (https://flic.kr/p/Ck8Dg5)
52 (https://flic.kr/p/Ck8Dg5) by The Pingus (https://www.flickr.com/photos/the_pingus/), on Flickr

Page sequence: Tracks > Trip Computer > Map > Home
Title: Re: Garmin eTrex data fields – what have you got?
Post by: LittleWheelsandBig on 14 October, 2017, 10:52:03 pm
I use the map page with speed and clock time showing. I don't feel the need for much other information.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: nextSibling on 14 October, 2017, 10:52:56 pm
Mainly used for randonneuring/audax purposes.

On the map view

On the data view
Some of those choices are probably a little arbitrary, but I don't think I've ever wished for much else.

Don't use any of the other views.

Title: Re: Garmin eTrex data fields – what have you got?
Post by: T42 on 15 October, 2017, 08:44:15 am
Map:  Currently Speed & BPM. On an Audax, Speed and ETA next control

Trip computer:

Speed - BPM
Distance - Total climb
°C - Current altitude
Moving time - Stopped time
Moving kph - Overall kph
Title: Re: Garmin eTrex data fields – what have you got?
Post by: frankly frankie on 15 October, 2017, 08:56:04 am
Next Point and Distance to Next on the map page.

On the Trip computer page:
Next Point : Distance to Next
Elevation : Distance to Dest
Trip Odometer : Speed
GPS Signal : Sunset time
GPS Accuracy : Time of day


As you can see I can't really find a good use for more than about 6 fields.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Chris N on 15 October, 2017, 11:32:09 am
Etrex 30 here.

Overall average speed and trip odometer on the map page

On the data page (set to 'Large data field' dashboard with small numbers):
Trip odometer
Speed/Overall Average speed
Max Speed/Total time
Elevation/Total ascent
Also shows battery, time and GPS signal at the top of the page.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Ian H on 15 October, 2017, 11:36:38 am
Three pages on my 20: map, data, list of tracks.  Speed and distance on the map page.  Data page largely as found.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Samuel D on 15 October, 2017, 05:21:06 pm
Many thanks for the contributions, all.

Does your bicycle convert into a sailplane, Pingu?
Title: Re: Garmin eTrex data fields – what have you got?
Post by: JonB on 15 October, 2017, 05:27:19 pm
Data screen,

(https://farm5.staticflickr.com/4448/37004485014_2769d9fb32_o.jpg) (https://flic.kr/p/YnXEbj)259 (https://flic.kr/p/YnXEbj) by Jon Banks (https://www.flickr.com/photos/128459618@N06/), on Flickr

Map screen,

(https://farm5.staticflickr.com/4501/23860891988_cf1c374c0e_o.jpg) (https://flic.kr/p/CmviTs)268 (https://flic.kr/p/CmviTs) by Jon Banks (https://www.flickr.com/photos/128459618@N06/), on Flickr

Just have these as separate screens which I scroll through with the back button.  How does the satellite page stop any accidental joystick 'damage', I sometimes remove the unit off the bars to go in cafes etc and if I put in a pocket it can go a bit weird, don't like to turn it off as it affects the overall average speed.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Samuel D on 15 October, 2017, 05:36:54 pm
Any joystick input has no effect on the Satellite page. Since these devices don’t have a way to lock the screen, so to speak, that can be useful – especially in a pocket.

You can go to the Satellite page from the Main Menu, of course, but I like having it available from the Back button since I use this function often. Also, who doesn’t like seeing all the satellites and their position in the sky? The magic of GPS never gets old for me.

You’re also a sailplane pilot, JonB?
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Kim on 15 October, 2017, 06:57:56 pm
eTrex 30 here.

Trip odometer, time of day, heart rate and elevation on the map display.  (With current speed, cadence and temperature on a traditional cycle computer beside it.  eTrex works in metric, bike computer in silly units, so I have the best of both worlds.)

Some stuff on the data screen that I almost never pay attention to, but moving and overall average speed and total ascent certainly feature.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Cudzoziemiec on 15 October, 2017, 07:21:38 pm
I have overall average speed and stopped time on the data fields, randonneuring for the purposes of. All sorts of stuff on the data page, though no glide ratio. Not sure about page sequence, nor can I remember which "profile" it's set to.  e20.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Pingu on 15 October, 2017, 08:20:09 pm
Does your bicycle convert into a sailplane, Pingu?

Arf  :)
Title: Re: Garmin eTrex data fields – what have you got?
Post by: JonB on 15 October, 2017, 08:32:08 pm
Any joystick input has no effect on the Satellite page. Since these devices don’t have a way to lock the screen, so to speak, that can be useful – especially in a pocket.

You can go to the Satellite page from the Main Menu, of course, but I like having it available from the Back button since I use this function often. Also, who doesn’t like seeing all the satellites and their position in the sky? The magic of GPS never gets old for me.
Thanks for the info, I think I'll set that up  :thumbsup:

You’re also a sailplane pilot, JonB?
I was a bit confused by this comment here and above for Pingu but it's just sunk in ... glide ratio! Not sure if you've got this in the 20 as it doesn't have the barometer but it gives an old school of version of incline (1 in 10 = 10% etc, apologies if you actually know this).

This has been useful, think I'm going to ditch the big speed field on my data screen and get an extra one in, maybe height or overall time



Title: Re: Garmin eTrex data fields – what have you got?
Post by: Pingu on 15 October, 2017, 09:17:41 pm
I was a bit confused by this comment here and above for Pingu but it's just sunk in ... glide ratio! Not sure if you've got this in the 20 as it doesn't have the barometer but it gives an old school of version of incline (1 in 10 = 10% etc, apologies if you actually know this).

This has been useful, think I'm going to ditch the big speed field on my data screen and get an extra one in, maybe height or overall time

It gives the decline, so a 10% incline shows as -10:1.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: frankly frankie on 16 October, 2017, 03:05:52 pm
This has been useful, think I'm going to ditch the big speed field on my data screen and get an extra one in, maybe height or overall time

Funny - I was going to say the reverse, as that single big data field is a useful way of getting 'Next point' up to a legible size, and 2 of the other 3 'fixed' items displayed are ones I have anyway (time and GPS signal strength) so very little is lost by it.

Easy to store alternative layouts by using the 'Profiles' feature of the GPS.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Cudzoziemiec on 16 October, 2017, 03:57:37 pm
I'm pretty sure the 20 also has glide ratio. Will check soon.
Title: Re: Garmin eTrex data fields – what have you got?
Post by: Samuel D on 17 October, 2017, 04:05:38 pm
The eTrex 20 does indeed have the Glide Ratio field.

The mental gymnastics of converting that into something familar, such as per cent gradient, would be too much for me, I think. Besides, the gradient isn’t all that interesting to me. What is more interesting is vertical speed. The eTrex has a Vertical Speed field too, but the units are not the familiar metres per hour of VAM. Metres per minute is the closest option, I think. Maybe I’ll try that, though who knows if it’s accurate enough to be useful on an eTrex 20. The eTrex 30 would fare better here.