Here is a list of all the postings Roger Dyke has made in our forums. Click on a thread name to jump to the thread.
|Thread: DX6 Voice Alert?|
Just another one before I go....
What is a model memory timer and what is it for?
John: Ahhh...... Now sorted. Thank you so much for your help. I'd been going around in circles.
Having recently purchased a Spektrum DX6 TX, I have more or less got to grips with most of it's functions. However I am in a bit of a puzzle in assigning a voice alert to the throttle-cut switch which I have assigned to switch 'A'.
Could any of you more knowledgeable types explain how to do this please?
|Thread: Understanding the numbers....|
Don: You may be right about shadowing, depending on what type of circuits flown, left or right. I'm reasonably happy with the result though.
Update for the Spektrum AR6600T receiver plus remote.
Visited the flying field today to check out the telemetry numbers after fitting the remote receiver. After two flights, the numbers were as follows:-
1st flight (5 mins): A - 279, B - 29, Frames - 2, Holds - 0
2nd flight (8 mins): A - 402, B - 91, Frames - 18, Holds - 0
On the 2nd flight I flew to the extremes of my vision for distance and height.
The figures look okay to me.
Don: I know what you are saying and I'm not adverse to gaining access to different places in the model if I need to. I would just like to explore the options first. I have now fitted the remote receiver in what I think is a favoured place and I will be interested to see the results next time I visit the flying field.
Steve and Don: In aircraft 2 with the Spektrum receiver I did not have the remote receiver fitted as I didn't have much room and it appeared to work okay. I had just finished the model and completed it's covering so didn't really want to start hacking it about. Since returning home and posting the above figures I have managed to find a place to fit the remote receiver. Just by a way of getting some comparison I placed the model 28 paces down my garden and operated the TX on reduced power for a few minutes from the kitchen table. Below are the before and after figures when fitting the remote receiver.
Before: A - 1115, B ------, Frames - 1115, Holds - 0, -46dBm, 100%R
After: A - 1334, B - 151, Frames - 141, Holds - 0, -46dBm, 100%R
I think that the figures are probably now more in keeping with the figures I obtained from Aircraft 1.
Steve: That is correct as there really wasn't room for it in the aircraft and the receiver seemed to be functioning okay without. Is this bad news?
Just for interest for those who would like to know, I managed to get up to my flying field today after a few weeks lay-off due to the HS2 archaeological survey being carried out. I took two of the four of my aircraft recently converted from 35MHz to 2.4GHz. This was the first time that I was able to do an airborne test of the telemetry numbers. They were 4 successful 5 minute flights (2 each) both with an IC engine.
Aircraft 1 - Receiver Orange R620X V2 Aircraft 2 - Receiver Spektrum AR6600T
Aircraft 1 flight 1: A - 256, B - 36, Frames - 25, Holds - 0
Aircraft 1 flight 2: A - 211, B - 9, Frames - 6, Holds - 0
Aircraft 2 flight 1: A - 93, B - 0, Frames - 93, Holds - 0
Aircraft 2 flight 2: A - 113, B - 0, Frames - 113, Holds - 0
The antennas in both aircraft have been placed at 90 degs to each other and in the best places possible given the constraints allowed.
In looking at the telemetry figures whilst doing a range check on reduced power, it was a bit of a joke with the numbers dancing all over the place including picking up a couple of holds. That ignored, the control surfaces seemed to be working fine. Anyway, a good day for me, especially as one of the aircraft was even on it's maiden flight.
brokenenglish: I'm inclined to agree. We tend to get blinded by all the technology with all these wonderful statistics to look at, but the bottom line is are our sticks controlling the aircraft. The old type range check has always stood the test of time for me so maybe that's the way I will continue.
Steve: I do take your point about the telemetry being useful to check whether an antenna is best placed, which does give us the opportunity to move it if necessary.
Steve: Thank you for the info.
Cuban8: Like I mentioned to Don (above), I am in danger of over-thinking this and it is probably a case of too much information. Especially when we can't get a solid answer (even from the manufacturers) as to what it all means as to what is good and what is bad. Thanks for the information.
Don: I think that you are right. I am probably over-thinking this and are looking at all the numbers because I can and it's available. Perhaps the old method of 'does it work ok or not' is still the best test.
Martin: yes, I will be interested to see what the figures are next time I am at the flying field.
Mike: All of my antennas are in the top of the aircraft. But they are still only about 3 to 6 inches from the ground. The results are very similar from all the aircraft tested.
Mike: I have tried the test at a little shorter distance (probably about 27-28 metres) but the results are about the same. As I mentioned to Percy (above) the manual states to place the model on the ground restrained.
Reflections could play a part. Within about 3 metres to the side of the model is a aluminium framed 12' x 8' greenhouse. Maybe I need to do this test at the flying field. The reason I wanted to do this at home is because of getting a better feeling when I turn up at the field that I will be in with a chance of flying.
Don: I don't know as to what the telemetry number are when flying as I haven't flown any of my aircraft yet. I have only just finished converting them to 2.4GHz. On observing the numbers when operating the tx on reduced power my immediate thoughts were that the signals should be solid (no fades, no frames, etc.). Hence the posting. But thinking about it logically, if the idea of the reduced power is to simulate the aircraft being at the edge of it's communication range then I suppose I would be expected to see lots of antenna fades, bad frames, and even the occasional hold. Perhaps the telemetry is to be observed only when flying the model at full tx power and not when doing range checks on reduced power. Maybe I am looking too deeply into this as the models do seem to have full control. I am very used to 35MHz when I used to walk 30 paces with a collapsed aerial to check whether all the surfaces were moving correctly. If they were, job done. I am very new to 2.4GHz so am still a little bit nervous of it as at the moment it is the unknown.
Percy: Thanks for your reply. I'd thought about doing that, but thought that I would follow the manual which states:- "With the model restrained on the ground, stand 30 paces (approx. 90 feet/28 meters) away from the model.".
I might try raising it up just to see if it makes any difference.
I have recently purchased my first 2.4GHz transmitter/receiver. It is a Spektrum GX6 G3 with an AR6600T receiver. I think that I am now almost up to speed with programming it's capabilities. However, the range check is a bit of a puzzle. My back garden is 30 metres long so am using this as a preliminary range check just to make sure that I am in the right ball-park before I disappear to the flying field.
When I place my model on the ground at the top of the garden, I then switch it on and walk back the 30 metres. With the tx set to Range Check I observe from the telemetry readings that antenna 'A' gets the occasional fade with no 'Frame' losses and no 'Holds'. So far so good. Now, if I press the 'trainer' button to reduce the transmit power, the 'A' antenna seems to start counting endlessly with the 'B' antenna not far behind. Also the 'Frame' starts slowly counting up too. I also get the occasional 'Hold' too. If I move the tx in different directions, the numbers count either a bit slower or a bit faster depending on tx antenna position.
I have four aircraft. One with the Spektrum AR6600T receiver in, and the other three with an Orange R620X in. I have been very careful with antenna placement in the aircraft but am a little disappointed with the telemetry results coming back with the tx on reduced power. Am I missing something here.
I welcome the thoughts of all you experience 2.4-ers out there.
Many thanks in advance.
|Thread: Delivery time....|
David and flight1,
Thank you for your replies.
Would you believe it.10 minutes after my last post it arrived through the door. Sods law I suppose.Unfortunately wasn't home at the time.
My thanks to you all for your valued replies.
Edited By Roger Dyke on 10/04/2019 12:05:53
Dennis: My status says complete and has done for two weeks.
Tony: Thanks for that. That makes me feel a little better.
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