Messages

1

OGN-R PilotAware / PWNYMPS up and running

« on: April 24, 2021, 04:02:01 pm »

After several precarious hours up a ladder on the clubhouse balcony we managed to get our new Atom/Grid station at Nympsfield (Bristol & Glocs Gliding Club) up and running today, so hopefully it will help with Glider/Flarm visibiity in the Severn Valley. Many thanks to Keith & Co for providing the base station....

2

OGN-R PilotAware / Which antenna co-ax?

« on: February 03, 2021, 01:24:11 pm »

Doing the preparation for our new Atom/Grid instal. Slightly complicated as I cant get site access at the moment to measure cable runs to the antenna location, so wondering about just bulk buying the cable and connectors so we can make it up on site when we get access.  There seems to be a big price difference between RG8, RG8x and LMR400.  I think we're going to end up with about 8m cable run, so just wondered what experience is with the different cable grades  and what people typically use? 

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OGN-R PilotAware / Re: SDR Installation and insulation

« on: January 20, 2021, 06:01:53 pm »

Thanks Keith

I've got a similar ventilated project box - good point on the cooling, I'll have a play around with the options

Julian

4

OGN-R PilotAware / SDR Installation and insulation

« on: January 20, 2021, 04:37:02 pm »

Just putting together a new station for Nympsfield (BGGC). I'm putting everything into a project box ready for installation (when we're allowed back in the clubhouse), the SDR's provided have already had the aluminium cases removed (which helps them fit). Just wondering if I need to insulate/protect them somehow - eg heat shrink or silicon tape round the exposed SDR  boards ?  What do people normally do ?

I was also thinking of using 90 degree USB adaptors which make the fit a bit neater.

5

General Discussion / Re: The Graffiti Conspicuity Device

« on: August 04, 2020, 09:37:40 am »

Yes, how about some idea of what this is about?  I seem to recall was some criticism of uAvionix a few years ago for announcing stuff with no details and no availability....  pots/kettles/black ?

6

General Discussion / Re: Hardware development?

« on: June 26, 2020, 07:09:26 pm »

Hi Lee

I have Flarm, but an integrated (classic) version inside an LX8000 nav computer rather than separate box.

7

General Discussion / Hardware development?

« on: June 26, 2020, 01:12:50 pm »

Hi. I was wondering if there was any developments on the hardware side for a Rosetta follow-on or different HW platforms?   

I completely agree with the latest youtube video on Atom-Grid, PAW makes a great integrated receiver for multiple protocols. My issue is that I struggle to find an easy way of mounting Rosetta + battery + antenna in a glider cockpit that is already full of gizmos !  (Note before everyone chimes in, I'm not saying it's impossible, just not convenient or neat in my setup).

I was wondering, for example, if it would be possible to build a receiver based around something really compact like the PI-zero-W, so you could come up with a unit with internal battery & speaker in a compact format?  As I already output Flarm and ADSB I'm most interested in the receive side, which presumably means lower power demand?

I'm not at all familiar with the technical issues, so this may be a non-starter, just wondered  if there was anything in discussion

8

Technical Support / Re: rosetta power consumption

« on: May 24, 2018, 08:19:47 pm »

Thanks very much for the info, I had naively assumed you could just plug a speaker in and get the audio. Sounds like it needs a bit of work to get a carry-on system that is practical in a confined glider cockpit - I'm following the other threads on this subject with interest...

9

Technical Support / Re: rosetta power consumption

« on: May 22, 2018, 09:10:53 am »

Thanks - sounds like a power pack is the way to go. You can upgrade the batteries to LifoPE - but the cost of doing so (including chargers) is about twice the cost of a PAW.

Thanks for all the info.

10

Technical Support / Re: rosetta power consumption

« on: May 21, 2018, 06:38:56 pm »

Thanks for the information, so looks like rosetta likely to be 1A to 1.5A at 5V if slightly more powerful than "classic" unit ?

From what I read the converters run 80% to 90% efficient, which gives me 500ma to 750ma (in round numbers). This compares to a classic Flarm that runs at 150-200ma (12V) and is a similar load to a PNA (eg Oudie) charging it's battery.

I'm just trying to assess impact on a glider installation, my current setup of equipment draws about 500-600ma total (assuming radio not receiving), so this implies PAW would be a significant additional load. Probably means easiest route to is to make the PAW portable with it's own power-pack.

If anyone has a Rosetta and can do some actual measurements that would be useful, or any experience of running Rosetta (I know they are new) on a power pack. I'd be looking for at least 6 hours and ideally 10.

11

Technical Support / rosetta power consumption

« on: May 21, 2018, 06:06:27 pm »

Just wondered what the average current draw of a Rosetta setup is. I see PAW recommend power supply that will deliver 2Amp at 5V, but assume the average is lower than this. Also I guess you have some inefficiency in the 5V to 12V conversion, so if (for example) the average is 1A at 5V, that is 5W, or 417ma at 12V, assume 80% efficient conversion then that implies around 500ma current draw from a 12V battery supply.

Any real-world measures would be appreciated.