Thanks Stuart, Brian Sommerville reports that the eTrex use 350mw at 3volt (more needed to reduce the gliders 12v down to 3v) and the better Map76s model consumes 450mw at 12volt. If you need the backlight on, then power consumed is about 30% greater. I think iPaqs use about the same?
Now, is this a little or a lot? Your experience dictates that it is a little, especially if your ship has a second battery on an A/B switch. http://www.gpsoz.com.au/etrex_power.htm http://www.gpsoz.com.au/ Cheers, Jim ----- Original Message ----- From: "stuart smith" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, November 11, 2002 8:54 PM Subject: Re: [aus-soaring] GPS options for iPaq Pocket-PC. Ideas? | Just my 2 cents worth, probably not much more, I use a palm Vx running | soaring pilot( 8 hours on its own batteries) and a garmin etrex(22hours from | the specs, have never needed it that long), it happily directs me around a | task while giving me th confidence to fly further knowing I can always point | myself at home with little trouble. Just a pity that the other day it | couldn't manufacture a little more lift to get me round my first 300km, | although it did help me decide that 300km was a little beyond me on this | particular day and settle for 286km and got me home. | | This just goes to show that your decision on inflight computing does not | have to punish or even sacrifice any of the battery capacity that is vital | for the vario and radio. | | "When once you have tasted flight, you will always walk with your eyes | turned skyward, for there you have been and there you will always be." | Leonardo da Vinci, 1452-1519. | | | ----- Original Message ----- | From: "Mike Borgelt" <[EMAIL PROTECTED]> | To: <[EMAIL PROTECTED]> | Sent: Monday, November 11, 2002 10:51 AM | Subject: Re: [aus-soaring] GPS options for iPaq Pocket-PC. Ideas? | | | > At 08:31 AM 11/11/02 +1100, you wrote: | > >Subject: GPS options for iPaq Pocket-PC. Ideas? | > > | > >C. FAI IGC approved GPS/Loggers/Flight-Recorders at THREE times | > > these prices!!! (~$1,700 upwards, unless I have missed any?). | > | > Volkslogger is under A$1500 including GST. | > | > | > What is probably missing from the club glider is a good vario with audio | > with a properly tuned TE probe all working in a proper installation. This | > is far more important to your soaring performance than all the rest of the | > electronic wizardry. | > | > A related matter if you use an Ipaq in the cockpit and it runs from the | > ship's battery - have you checked the current draw of the Ipaq? It doesn't | > power down as there are serial messages coming in all the time. I've heard | > 300 - 350 mA. Apart from the radio on transmit this is the highest single | > battery drain source and it will give the gel cell a thrashing when added | > to the radio, vario and GPS. Expect to detect inadequate wiring, fuses, | > batteries and chargers. | > | > Mike | > Borgelt Instruments - manufacturers of quality soaring instruments | > phone Int'l + 61 746 355784 | > fax Int'l + 61 746 358796 | > cellphone Int'l + 61 428 355784 | > Int'l + 61 429 355784 | > email: [EMAIL PROTECTED] | > website: www.borgeltinstruments.com | > | > | > -- | > * You are subscribed to the aus-soaring mailing list. | > * To Unsubscribe: send email to [EMAIL PROTECTED] | > * with "unsubscribe aus-soaring" in the body of the message | > * or with "help" in the body of the message for more information. | > | > | | | | -- | * You are subscribed to the aus-soaring mailing list. | * To Unsubscribe: send email to [EMAIL PROTECTED] | * with "unsubscribe aus-soaring" in the body of the message | * or with "help" in the body of the message for more information. | -- * You are subscribed to the aus-soaring mailing list. * To Unsubscribe: send email to [EMAIL PROTECTED] * with "unsubscribe aus-soaring" in the body of the message * or with "help" in the body of the message for more information.
