Messages

61

Technical Support / Re: Rosetta, power consumption

« on: April 16, 2019, 07:43:37 pm »

Certainly need the capable power supply as stated by Lee to cope with surges etc.

Mine (with a Pi3) after boot and running normally has an average current drain of 600mA as measured by one of those USB volt/current devices

Vic

62

Technical Support / Re: GPS Lock being Lost due to Radio TX

« on: March 18, 2019, 07:22:02 am »

I would , as a starter check your transmitting equipment. The tenth harmonic (natural resonant frequency) of the channels you specified does fall in a part of the GPS band.

Most likely cause if so could be bad connections in any RF cabling from the transmitter to the antenna or corrosion leading to a poor VSWR which could result in the generation of harmonics.  Check no cabling is pinched or distorted from round. Also check all earth connections including any groundplane of the antenna.

Engine suppression could also be a possible factor, plug leads etc.

The newer GPS dongle in the Rosetta does have a much larger antenna giving it a better sensitivity, not only to GPS signals but possibly to likely interfering factors too.

63

Technical Support / Re: GPS Lock being Lost due to Radio TX

« on: March 17, 2019, 09:20:13 pm »

Alan

Does the GPS dropout occur irrespective of what frequency you are transmitting on?

64

Technical Support / Re: PilotAware Audio Output

« on: March 03, 2019, 07:10:43 pm »

Had my first enforced experience of Skydemon's verbal warnings yesterday in a short flight from Thurrock to Andrewsfield. I forgot to connect my BT dongle into the PAW so I enabled SD warnings on Bluetooth into our PAR200 Comms panel.

Must say, I was impressed, it even gave me a verbal warning of a farm strip I was about to overfly at 1500ft ("Warning, airfield 1 mile ahead"), Guess it'll also do this for Glider sites.

65

Technical Support / Re: GPS Battery?

« on: March 03, 2019, 06:20:18 pm »

Delving deeper, and measuring mine at 3.1v when powered up,  the battery is rechargeable, likely one of these..

https://www.sii.co.jp/en/me/datasheets/ms-rechargeable/ms414ge/

Looking at the spec sheet, the charging current is tiny (<1% charge gain per hour!) and will take approx 200 hours to charge fully.

Perhaps with the relative infrequent 'power on time' these dongles get in our pilotawares, they are simply discharging over a couple of years and never charging up enough when powered for a flight duration.

I'm going to leave mine in a USB port of my PC (it has a  mode where they stay powered when shutdown) for a few days. Suggest you try the same!

66

Technical Support / Re: GPS Battery?

« on: March 03, 2019, 05:02:55 pm »

Hi Steve  ..for what it costs, I'd say it isn't really worth it
https://www.ebay.co.uk/itm/VK-172-USB-GPS-Receiver-Ublox-7-Win-7-8-10-Linux-Ras-Pi/192372624724

Here's mine out of interest. (the case gently prises open)




The battery has tags spot welded on which are then soldered down to the PCB.  The cell measures around 4.5 x 1.5mm.

Mine measures a voltage of 1.92 volts suggesting that it too is a 'just about to die' lithium cell!  The PCB has a manufacture date of week 22 in 2015 making that 3 years old.

67

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: February 01, 2019, 03:57:21 pm »

Sounds like your problem is a little different then Bob. Mine would literally disconnect briefly every 20 seconds or less for the whole flight until I sorted it.

Something you could try if you haven't already is to do with the Wifi setup. In settings, from the WLAN screen hit the menu selector (three dots) and go into the Advanced menu.

In there is a setting "Notify whenever a public network is available"  Make sure this is switched off.  Again too clever for its  own good this setting is normally allowing the WiFi to do other stuff and is possibly picking up the odd WiFi public network even at height to ask you if you'd wish to connect, by which time it's gone!  Worth a try

68

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: January 31, 2019, 01:41:01 pm »

Bob, the Tab 3-7 should have a multi user or a kids mode  https://www.youtube.com/watch?v=bF9hCh-hRt8
Maybe try adding a fictitious 'kid' 

69

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: January 10, 2019, 04:26:33 pm »

As an update to this issue, the connection problem with my Lenovo Tab 3-8 returned after some 3 or 4 flights.

About to bin the Tablet and revert to my old Google Nexus 7, I did one last internet search.

One suggestion was to create another user for the tablet, making it dual login.  This I did, but it's an account I have never used since.

The disconecction problem has NEVER returned in over 6 months flying. Heaven knows why this fixed it but it just shows never to discount the ridiculous with modern IT!

70

General Discussion / Re: new rosetta user

« on: January 10, 2019, 03:39:01 pm »

Hi Stodge

Coincidentally, here's a screenshot from Skydemon I took whilst we were climbing out of Fenland on Saturday.  You can see two gliders operating at Crowland along with the Ground station located there.

Vic

71

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: February 17, 2018, 06:30:10 pm »

Yes,  sorry  Keith, an OGN uplink has been recently installed atop their very high tower!

72

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: February 17, 2018, 06:04:38 pm »

Flew today with it (to OGN equipped Turweston. They saw me coming well over 10Nm out!)

The tablets PAW link was flawless no breaks both there and back! 

73

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: February 14, 2018, 05:07:09 pm »

Thanks Lee, I have now corrected my post. Yes i was very convinced it was not the PAW at fault when I replaced the WiFi dongle.

Vic

74

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: February 14, 2018, 02:59:19 pm »

Fixed it!!

After loads more diagnotsics including the latest firmware update, buying a new WiFi Dongle and messing around with Wireless settings I focussed my attention on the fact it MUST be the tablet at fault (Mine is a TAB3 8/TB3-850F), something was clearly getting in the way of the data stream coming into the tablet.

I noticed, hidden amongst the list of system apps, was Macafee, (my most loathed of antivirus/firewall packages). Running at this level it couldn't be stopped or uninstalled or any settings changed.

So, taking the bit between my teeth, I boot unlocked and rooted the  tablet following the instructions HERE for anyone who may care to try them in the future.  Anyone attempting this, it's not for the faint hearted if you haven't done such before, will completely wipe and reset your device to factory settings also and you run the risk of bricking the device altogether if you don't follow the steps correctly or do it on a tablet that isn't exactly the same.

The result was that I was now able to uninstall Macafee.  Finally, the disconnections have gone away completely. I have had my tablet running with Skydemon connected flawlessley to the Pilotaware for four hours now and the moving of ADSB targets is noticeably  MUCH smoother than it was before.

I cannot be 100% certain that removing Macafee  or the Rooting is the actual cause of the fix as I was too keen to see if I could get rid of the piece of #### that I forgot to do any testing before!  I highly suspect some form of software firewall was being too aggressive getting in the way of both UDP and TCP traffic.

75

Technical Support / Re: Lenovo Tab3 7 connection problem

« on: January 19, 2018, 06:33:45 pm »

Mine still plays up (Tab 3-8)    I'm going to do a full factory reset at some point and see if that resolves it. So back to the 2012 Nexus 7 for now which is rock solid.

I've read on a forum also if you don't register it with Lenovo when you first set it up (I didn't) you don't get full functionality which probably explains lack of auto screen brightness and internal GPS without fiddling about!  Maybe it messes with WiFi trying to prioritise something else?


I notice though, that there are several threads on here with 'Pilotaware' mode WIFi disconnect issues that could all be connected with the latest release?