J
jax
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Also looking at the pics i bet u csn get some good footage and shots from where u are . City shots
Sure can!
Also looking at the pics i bet u csn get some good footage and shots from where u are . City shots
Also looking at the pics i bet u csn get some good footage and shots from where u are . City shots
I found the wifi log from the copter via SFTPing into it. Here's what I see during the event.
Feb 8 23:53:42 3dr_solo local3.info rssi_send: station sig=-58 txr=57.8 rxr=7.2 ret=331 err=84
Feb 8 23:53:43 3dr_solo local3.info rssi_send: station sig=-58 txr=39.0 rxr=7.2 ret=364 err=96
Feb 8 23:53:44 3dr_solo local3.info rssi_send: station sig=-59 txr=39.0 rxr=7.2 ret=112 err=96
Feb 8 23:53:45 3dr_solo local3.info rssi_send: station sig=0 txr=0.0 rxr=0.0 ret=0 err=0
Feb 8 23:53:46 3dr_solo local3.info rssi_send: station sig=0 txr=0.0 rxr=0.0 ret=0 err=0
Feb 8 23:53:47 3dr_solo local3.info rssi_send: station sig=0 txr=0.0 rxr=0.0 ret=0 err=0
...
Feb 8 23:54:08 3dr_solo local3.info rssi_send: station sig=0 txr=0.0 rxr=0.0 ret=0 err=0
Feb 8 23:54:09 3dr_solo local3.info rssi_send: station sig=-56 txr=1.0 rxr=6.5 ret=1 err=0
Feb 8 23:54:10 3dr_solo local3.info rssi_send: station sig=-54 txr=57.8 rxr=6.5 ret=102 err=0
Feb 8 23:54:11 3dr_solo local3.info rssi_send: station sig=-55 txr=65.0 rxr=6.5 ret=86 err=0
When I lose it my signal goes from -59 db to 0 in one second then when it recovers it's back at -56. Can anybody tell me if this seems normal? I need to brush up on my rx theory but is -59 a very poor signal? Is that poor enough for it to lose the connection?
Thanks. Is there any particular antenna that works best straight up, or any optimal way to orient the stock antennas for that type of flight?
Cool. You just inspired me to try them. For $20 I can't really go wrong.I noticed a dramatic increase in signal quality in my "straight up" flights with the alfa antennas.
Seems like interference is a pretty strong possibility.
Also, when you rotate, as the the antenna orientation changes in two of the solo's legs, I often see dramatic signal change (especially when straight overhead). Were you rotating the solo when it occurred?
When I first started flying, I also stuck with going straight up for my first flights. However to improve signal I would push the solo forward or backwards a bit to get better signal quality. In one of my popular spots to fly, I would push it forward about 40 feet over a bushy hill, that 40 feet improved signal quality immensely.
-56/-59db is pretty solid wifi signal strength
If you've tried flying other than straight up and you still lose connection when you rotate (yaw) I'd check the antenna connections inside Solo. Sounds possibly like you have only one antenna connected...
Try doing a walkaround with the drone on but no props spinning, sitting on a table. Walk 360 around it with the transmitter pointed at the bird the whole time and watch the RSSI number. Ideally with 10+ feet between the bird and yourself.
This should give you an idea of whether the problem is internal to the bird/GCS or whether it is an interference problem.
Mountainous or hilly area ? Any possibility of a "blast radiator" such as a microwave antenna or WiMax node?
I have noticed at a marina where I regularly fly that the buildings and trees seem to provide some shielding from interference below a certain height. Certainly possible that terrain could be shielding you up to a certain height....
I just did a test flight. Before I flew I walked around the drone and if the drone was below me there was actually a slight difference in signal from one side to the other but when I put the drone up on a table the difference was negligible. Then I decided to fly.
I went out 50 feet and up 100 feet and yawed in a complete circle - no difference in signal strength (-55 to -60 db) then went up to 200 feet and did the same - still -55 to -60 db, then went up to 300 feet, and did the same, still -50 to -55 db. When I got closer to 300 feet I noticed the video glitching a bit and some dropped frames but no difference in signal strength. Then I went up to 400 feet and tried a yaw and missed a frame or two then lost connection.
One thing I notice with the stock antennas vs. the Alfas is when the drone disconnects it does not reconnect until getting really close to be but with the alfas it seems to reconnect much sooner.
So I can't confirm it's an antenna. It's not showing a very different signal strength at certain part of the yaw circle, but it is definitely suffering from glitchy video and then disconnecting at the 300-400 foot range.
Hmm...
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