Messages

31

Technical Support / Re: OGN-R uplink typical range

« on: January 09, 2021, 12:26:59 pm »

Many thanks Deker - that's really helpful 

I guess there may be a problem with my 869.5MHz reception since three different ground transmitter uplinks were all being received intermittently?
The 1090MHz reception seems to be good since I'm getting good range and few dropouts from ADS-B targets.

Now that I'm learning what to look for, I will study a few of my other flights to check whether the problem is consistent.

Best Regards,
Chris.

32

Technical Support / Re: OGN-R uplink typical range

« on: January 09, 2021, 10:48:50 am »

Thanks Alan,
I will need to check my PAW settings next time I'm at the aircraft, I cannot recall changing this setting and the instruction manual does not state what the default setting is for this.

Studying the flight on the Aircrew tool again, I can see most of the traffic was ACSB, which I think is a straight ADSB reception a/c to a/c. I was getting good range on these targets out to ~80nm.

You are correct that there were a few with "U" so I was receiving uplinked traffic. However I cannot tell whether there were so few because the uplink range / coverage was poor or whether there was not much traffic around on this day in this category. I'm suspecting the former since these targets were quite short range and very inconsistent appearing and disappearing often.
The few that I saw were:
- ACSPUM, i.e. Mode-S detected directly with MLAT data being Uplinked
- ACSPU, could be position from PilotAware unit or maybe FLARM uplinked?
- PU, although type is shown as glider, according to the manual this is an OGN-R station uplinked via PilotAware which makes sense since it doesn't move?

I could not see any "F"s for FLARM, but perhaps FLARM position source but uplinked via PilotAware would be displayed ACSPU?

Regards,
Chris.

33

Technical Support / Re: OGN-R uplink typical range

« on: January 08, 2021, 10:18:30 pm »

I have uploaded the flight and made it public. The glider I spotted with GPU is at 09:27 north of my track near Husband's Bosworth.

Here is the link:
https://aircrew.co.uk/playback/458ef337

34

Technical Support / Re: OGN-R uplink typical range

« on: January 08, 2021, 09:43:21 pm »

Thanks Alan,
I reviewed one of my flights from June 2020 using the Aircrew playback tool. I could see all the traffic but not the groundstations, but I'm not sure whether they were being filtered out or I wasn't using the tool correctly.

Most of the traffic seemed to be ADSB which presumably was received directly aircraft to aircraft. I did spot a glider which had "G P U" and PilotAware and Uplink were shown when I hovered over the P and U. Does this mean that its position was coming via uplink or directly aircraft to aircraft from its PilotAware unit? Apologies if this is a stupid question but I'm not familiar with the Aircrew tool.

Any hints tips or instructions would be gratefully received.

Best Regards,
Chris.

35

Technical Support / Re: OGN-R uplink typical range

« on: January 08, 2021, 05:11:47 pm »

Hi,
I'm curious about the uplink range also and had a recent discussion about it on the RVSqn forum.

I used the new Vector tool which showed good 360deg downlink coverage out to between 60-80km. I can also typically see contacts out to 96km on the PAW radar screen in my aircraft (see attached screen shot).

Based on this I had assumed that I was getting good coverage of both:
A) aircraft to aircraft detection (PAW and ADSB traffic) and
B) ground to aircraft detection (FLARM and MLAT) from ATOM uplink.

However if the uplink range is poor / variable then I could be missing B) traffic completely and my PAW radar screen would only be showing me traffic from A)?
Is there any way of determining this, either in-flight or afterwards by analysing track files?

Obviously having a radar screen full of contacts is a step forward from not having any EC, however it would be useful to know for example if I'm missing glider traffic. 

Thanks,
Chris.

36

Technical Support / Re: Vector shows PAW but not ADS-B signals

« on: January 05, 2021, 02:42:23 pm »

Thanks Keith - that's helped my understanding of the Vector plots.

37

Technical Support / Re: Vector shows PAW but not ADS-B signals

« on: January 05, 2021, 01:48:48 pm »

Vector is an excellent function – well done PilotAware team, thanks  !

FYI attached are the plots from my RV-7 (external antennas under cockpit) from 5 flights in Nov-Dec last year. The first shows all EC and the second is just ADSB. Looking at the data overall there were 14154 contacts over the 5 days, but ADSB only had 2738 contacts on 4 out of these 5 days. I guess there wasn't much ADSB equipped traffic flying in the area on those days, however at least it confirmed that ADSB was being picked up with my PilotAware installation.

Chris Y
G-RVAH

38

Technical Support / Re: Wired Audio PAW to Intercom volume control

« on: November 02, 2020, 04:01:27 pm »

Hi riverrock,
With our Rosetta permanent installation we piped the audio onto the "Music 1" input of our Garmin GMA240 audio panel (see photo attached, top left button). This was done by plugging a 3.5mm audio jack plug into the Rosetta and cutting and wiring the red and black wires directly into the GMA240.

This works well, the volume from the Rosetta is loud enough (BTW I don't think there is a way of adjusting the output level from the Rosetta) and controllable via the volume knob on the audio panel if necessary. Also we can suppress the alerts by toggling the Music 1 button if necessary.

Sorry I'm not familiar with the intercoms you have, but would expect that their Aux inputs would work with at similar voltage levels to ours.

Good luck,
Chris.

39

Technical Support / Re: RV Installation

« on: September 30, 2020, 09:46:22 am »

Hi Martin,
Yes I would agree that external antennas are the best option for an RV.

In our RV-7 even with external antennas there are still some angles where airframe shielding causes blind spots e.g. between 3 and 5 o'clock above, due to the wing. I would imagine that internal antennas would be worse in this regard and there would be significant blind spots below.

Best Regards,
Chris.

40

Technical Support / Re: iOS Firmware Updater problem

« on: September 29, 2020, 06:24:51 pm »

Hi All,
Just another data point for this thread. I managed to update my Rosetta today without any problems. Here is my configuration:

iPad mini iOS 14.0.1
PAW firmware updater v1.7.5
Skydemon 3.14.4.260

PAW is now at 20200906 and all seems OK both while looking at the portal and using it with Skydemon. The METARs were especially useful today with much of the East stuck under IMC.

Thanks,
Chris

41

Technical Support / Re: RV Installation

« on: September 28, 2020, 08:19:49 pm »

Hi Martin,
Welcome to the forum. There is a separate thread on RV installations, see link below:

http://forum.pilotaware.com/index.php/topic,1167.0.html

I've posted some details of our recent RV-7 installation, which has external antennas. I have no experience of internal antennas so perhaps another member could advise.

Good luck 
Chris.

42

Technical Support / Re: odd behaviour when PA hooked up to dynon skyview

« on: September 03, 2020, 06:18:30 pm »

Hi,
I'm having the same problem with my interface between the Rosetta unit and the Dynon Skyview. I initially increased the baud rate from 57600 to 115200 and thought it improved but now I don't think it has. I keep getting comms fails and "Caution" warning from Skyview. Interestingly it virtually always happens on the return flight aswell?

I was not going to reduce the baud rate but wondered how you got on with 9600 and whether this still works for you?

Thanks,
Chris.

43

Technical Support / Re: USB - RS232 Dropouts

« on: August 07, 2020, 09:14:55 pm »

Hi,
Just to feedback on this question. I changed the baud rate from 57600 to 115200 and did a flight today. The issue was significantly improved, there were no dropouts throughout the outbound flight and only a couple at the very end of the return flight. If it is temperature related then clearly today was one of the hottest at ~30C, so I hope it will now be fine for most normal days.

Regards,
Chris.

44

Technical Support / USB - RS232 Dropouts

« on: July 29, 2020, 03:34:48 pm »

Hi,
I've noticed a few comms dropouts from the Rosetta unit to the Skyview Dynon. Interestingly it only seems to occur on return flights so may be temperature related. It only occurs for a few seconds at the most, but the Dynon says "Caution" and the FLARM lost shows on the screen. I think PilotAware is still alive since I heard an audio warning once when the comms was lost. Also I don't hear "PilotAware" indicating that the Rosetta is powering back up.

My Baud rate is set to 57600, but would it be more robust if this was slower or faster?

Any advice please?

Thanks,
Chris.

45

Technical Support / Re: Questions about alerts during close encounter with Ikarus

« on: July 20, 2020, 03:11:21 pm »

BTW the Aircrew site shows this number during playback:
592ab71e