Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: NavList in the thin air
    From: Frank Reed
    Date: 2013 Jan 15, 12:22 -0800

    Brad, you wrote:
    "The interface looks like "GPS Test" from ChartCross Limited. I have it on my Android phone."

    Yes, that's right. I think I've mentioned before that it's my favorite GNSS app right now. It has a nice feature that shows the GLONASS satellites in use as well as the GPS satellites.

    And you wrote:
    "I tried to use it in-flight once, but got reception from zero satellites. It was not GPS Test at fault, rather it was either my phones' GPS receiver or my seat on the plane. Could not get a satellite or a positional fix.
    At 18000 feet, I rather doubt Frank held his hand out the window ;-) Frank, did you hold the phone against the window? "

    I have found that it varies by type of aircraft, which, I suppose, isn't too surprising. On planes where I can get a satellite fix in the cabin, I find that I don't need to do any gymnastics. As long as I am in a window seat, I can get a good fix with the phone in my hand or resting on my knee. On other flights, there's no way to get a fix so I assume the construction of the fuselage blocks the signals. There may be coatings on the windows, too, that block signals.

    By the way, for those who haven't tried this, don't worry about using your phone for this sort of purpose in flight. The satellite signals are received passively. There's no transmitter in operation, so it falls under the accepted "airplane mode" operation. I'm sure most everyone knows that using a cell phone in flight even for phone calls is quite harmless (if you can get a signal), but at the same time, we don't need to make life difficult for the flight attendants. If anyone asks, you can assure them the phone part of the smartphone is not active. It's even more fun when you can get an Internet signal (many flights now have WiFi for a small fee). Then you can fire up Google Maps or equivalent and watch the little arrow zipping along, refreshing the map as you go. Some in-flight systems include a primitive feature like this, but with Google Maps active on your handheld computer (in other words, smartphone), you can zoom in and identify the geographic features, towns, roads, etc. that you're seeing out the window. It's something I've dreamed of having for as long as I've been flying. Does anyone know if there's a way to set up Google Earth to create a true "out-the-window" view that updates in real-time as you're flying along?

    -FER


    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site