HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Jan 21, 2013, 10:09 AM
Registered User
Tucson, Az
Joined Feb 2007
6,815 Posts
Good luck with your new toy. It will fly nice.
dankar04 is offline Find More Posts by dankar04
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 21, 2013, 02:23 PM
Learning more each day....
craigiri's Avatar
United States, RI, Portsmouth
Joined Nov 2012
590 Posts
BTW, I fiddled a bit with the antennas today - used a telescope (from inside behind a window) and then also confirmed outside using the sound (weighted the copter to stay on the ground).

Summary - I don't think there is any easy way to extend the range very far with the stock setup.

The existing antennas on the quad and trace are 1/4 wave at about 29mm long. I tried extending either or both to 1/2 way, with no difference or even worse connection.

I also tried the quickie aluminum foil parabolic with no success - although I suspect with a perfect setup something might be gained from this.

My range - outside on a horizontal - appears to be 120-140 feet maximum. At the longer distance I can hear the copter sputter when my hand blocks the trace from it!

Maybe someone will report results with a better tx....if they can get it to bind. But, for now, if you want to keep your copter stay within about 100 feet and line of sight!
craigiri is offline Find More Posts by craigiri
RCG Plus Member
Reply With Quote
Old Jan 21, 2013, 02:35 PM
Registered User
Joined Jan 2013
11 Posts
The connection should be worse--lots worse. An end-fed half-wave monopole has a very high impedance--in the thousands of ohms. You would need some sort of L-C network to match it. A better solution might be to cut the trace to the antenna on the PC board and build a little half-wave coaxial dipole to replace it. But I'm not ready to butcher my transmitter yet.

While you've got yours apart, what happens if you extend the antennas to 3/4 wave?
rdandrea is offline Find More Posts by rdandrea
Last edited by rdandrea; Jan 21, 2013 at 03:04 PM.
Reply With Quote
Old Jan 21, 2013, 04:02 PM
Learning more each day....
craigiri's Avatar
United States, RI, Portsmouth
Joined Nov 2012
590 Posts
Quote:
Originally Posted by rdandrea View Post
The connection should be worse--lots worse. An end-fed half-wave monopole has a very high impedance--in the thousands of ohms. You would need some sort of L-C network to match it. A better solution might be to cut the trace to the antenna on the PC board and build a little half-wave coaxial dipole to replace it. But I'm not ready to butcher my transmitter yet.

While you've got yours apart, what happens if you extend the antennas to 3/4 wave?
It's back together - but are u saying that extending to 3/4 on both copter and RX does not present the same problems as half-wave (mentioned above)....they would still remain end-fed as I simply attached wires to the end.
craigiri is offline Find More Posts by craigiri
RCG Plus Member
Reply With Quote
Old Jan 21, 2013, 05:15 PM
Registered User
Randbo39's Avatar
United States, AR
Joined Mar 2009
520 Posts
The complete package.
Randbo39 is offline Find More Posts by Randbo39
Reply With Quote
Old Jan 21, 2013, 05:26 PM
Against Helicopter Cruelty
Heli Pad's Avatar
Joined Aug 2011
6,327 Posts
Good job. The level was a nice touch. All you have to good is paint a big "H" in the middle to make it official.
Heli Pad is offline Find More Posts by Heli Pad
Reply With Quote
Old Jan 21, 2013, 05:58 PM
Registered User
The Netherlands, NB, Heusden Gem Heusden
Joined Dec 2012
27 Posts
Quote:
Originally Posted by craigiri View Post
It's back together - but are u saying that extending to 3/4 on both copter and RX does not present the same problems as half-wave (mentioned above)....they would still remain end-fed as I simply attached wires to the end.
simply adding a half wave is not very effective, to get the most out of that you need a phasing loop between the excisting antenna and the added wire, that way it acts like a wave in a pool adding to another wave.
pe1rdw is offline Find More Posts by pe1rdw
Reply With Quote
Old Jan 21, 2013, 06:28 PM
Registered User
Joined Jan 2013
15 Posts
Hi all, received my X-1 on Saturday after almost killing a Walkera Ladybird!! I decided to see if there was a sim program to try to learn on, I was searching and reading on Amazon and saw the X-1 and though to myself for 35.00 I could learn on this and if I kill it, not so much of a problem!! Definitely a good decision! Been flying it the past couple of days, this evening I made it from the dining room table, through the living room and into the foyer with no mishaps!!

A couple of questions after reading all the posts in this thread:

1. In a hover, should you have to continuously be making tiny adjustments, mostly to the throttle, but also a little to stay in position, or are you able to pretty much let go of the sticks and the X-1 stay in place? I have been very careful on the initialization on a flat surface and also have adjusted the trims a little, nothing major, it just seems to drift a little. I am also trying to hover at around 4 feet so should be getting much ground effects and the house isn't majorly drafty.

2. Been looking at a better transmitter, the Turnigy 9x looks pretty interesting, from what I understand from my reading is that I need the transmitter and a module, to get it to bind with the X-1, is that correct, what exactly will I need, if I decide to pull the trigger on that purchase.

One last thing, I know this post has gotten long, but I have to say I am very impressed with how helpful and courteous everyone seems on this thread, no one is clobbering the new folks and everyone seems very friendly, way cool!!
dmzim is offline Find More Posts by dmzim
Reply With Quote
Old Jan 21, 2013, 06:49 PM
Safety : practice & promote!
RoboHeli's Avatar
Joined Dec 2011
4,677 Posts
Hi, and welcome to RCGroups!!! Nice to have another x1 flier here.

Couple of quick answers...

#1 : yeah, mine does this too. The X1 only has gyros and not accelerometers (like the Walkera V1 Ladybird) so it has no way of knowing "absolute up". It will drift.

#2 : You can get one of these:

http://www.hobbyking.com/hobbyking/s...Firmware_.html

or one of these:

http://www.xheli.com/79p-th9x-r9b-9channel-radio.html

and you'll be good to go!

Note: I assume you're flying mode 2 and are in the US. If not then my recommendations above might differ. Since I fly mode 2 and am in the US, I find those two options to be the best.
RoboHeli is offline Find More Posts by RoboHeli
RCG Plus Member
Old Jan 21, 2013, 07:00 PM
Against Helicopter Cruelty
Heli Pad's Avatar
Joined Aug 2011
6,327 Posts
Quote:
Originally Posted by dmzim View Post
A couple of questions after reading all the posts in this thread:

1. In a hover, should you have to continuously be making tiny adjustments, mostly to the throttle, but also a little to stay in position, or are you able to pretty much let go of the sticks and the X-1 stay in place? I have been very careful on the initialization on a flat surface and also have adjusted the trims a little, nothing major, it just seems to drift a little. I am also trying to hover at around 4 feet so should be getting much ground effects and the house isn't majorly drafty.

2. Been looking at a better transmitter, the Turnigy 9x looks pretty interesting, from what I understand from my reading is that I need the transmitter and a module, to get it to bind with the X-1, is that correct, what exactly will I need, if I decide to pull the trigger on that purchase.

One last thing, I know this post has gotten long, but I have to say I am very impressed with how helpful and courteous everyone seems on this thread, no one is clobbering the new folks and everyone seems very friendly, way cool!!
Welcome to RCG, and thank you for making your first post here!!!

#1 With good initialization, I could pretty much do hands-free hover. It is normal for the quad to drift a little. After all it is sensitive to any air flow in the surroundings. But it doesn't jerk around, and corrections are very easy.

#2 There are different models of Turnigy Radio. If you look at the one I recommended in the Post #2, you do not need to anything else to fly the X1, the WL-Toys V911/929/939/949/959, and the GW-9958/9998/.... etc. You would only need modules if you buy the 9x w/o module, or the 9XR.
Heli Pad is offline Find More Posts by Heli Pad
Reply With Quote
Old Jan 21, 2013, 07:21 PM
Registered User
Randbo39's Avatar
United States, AR
Joined Mar 2009
520 Posts
Quote:
Originally Posted by Heli Pad View Post
Good job. The level was a nice touch. All you have to good is paint a big "H" in the middle to make it official.
I'm having way too much fun with this thing. Flysky 9x radio is definitely the way to go. The florescent orange paint makes all the difference in keeping track of the front end and the portable level surface makes initiation of the gyro a snap anywhere I fly. Hands down the best cheap R/C entertainment out there.
Randbo39 is offline Find More Posts by Randbo39
Reply With Quote
Old Jan 21, 2013, 07:30 PM
Registered User
Joined Jan 2013
15 Posts
Grrrrrrrr........Turnigy 9x 64.00 dollars Hobby King US warehouse not in stock, Hobby King in China 53.00 not in stock, Amazon 3rd party not sure where they are shipping from 144.00 but they are in stock!!

Amazing to me that all this stuff is out on the West Coast from what I can see, I am in CT and impatient....LOLOL

Thanks for the info......and Heli Pad your info from Post #2 is what turned me onto the 9x to begin with, I really like how you put all that info up front saves lots of time when looking for new goodies!!
dmzim is offline Find More Posts by dmzim
Reply With Quote
Old Jan 21, 2013, 07:42 PM
Registered User
Joined Jan 2013
11 Posts
Quote:
Originally Posted by craigiri View Post
It's back together - but are u saying that extending to 3/4 on both copter and RX does not present the same problems as half-wave (mentioned above)..
They remain end-fed but do not show the huge impedance mismatch of an end-fed half wave as you are feeding at a high current point instead of a high-voltage point. When you're end-feeding, odd quarter waves are better than even quarter waves.

That said, simply adding a quarter wave will not add much in the way of gain, only solve the impedance problem.
rdandrea is offline Find More Posts by rdandrea
Reply With Quote
Old Jan 21, 2013, 07:51 PM
Against Helicopter Cruelty
Heli Pad's Avatar
Joined Aug 2011
6,327 Posts
Hehe, I know what you mean about the T9x. I'm very glad that I got in before the masses discovered it. Since then it was in-stock for minutes, and it's gone! It's definitely worth the investment. So, if HK is taking back order, I would suggest submitting the order so you're in line for the next shipment. Otherwise, you'll be on the sideline for a long while, unless you pay the ridiculous high price for it.
Heli Pad is offline Find More Posts by Heli Pad
Reply With Quote
Old Jan 21, 2013, 07:55 PM
Safety : practice & promote!
RoboHeli's Avatar
Joined Dec 2011
4,677 Posts
Quote:
Originally Posted by dmzim View Post
Grrrrrrrr........Turnigy 9x 64.00 dollars Hobby King US warehouse not in stock, Hobby King in China 53.00 not in stock, Amazon 3rd party not sure where they are shipping from 144.00 but they are in stock!!

Amazing to me that all this stuff is out on the West Coast from what I can see, I am in CT and impatient....LOLOL

Thanks for the info......and Heli Pad your info from Post #2 is what turned me onto the 9x to begin with, I really like how you put all that info up front saves lots of time when looking for new goodies!!
Hey, check out my second link to the TH9X radio at xheli.com:

http://www.xheli.com/79p-th9x-r9b-9channel-radio.html

This is *EXACTLY* the same radio as the Turnigy 9x. It differs only in color and branding. Technically, I'm told that there is no functional difference. It's a little more pricy but don't forget that you're paying shipping at HobbyKing as well.
RoboHeli is offline Find More Posts by RoboHeli
RCG Plus Member
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Syma 2012 new publish, syma X1, S800G, S107C,S036G,what's better wjh041 Coaxial Helicopters 9 Jun 20, 2013 03:07 AM
New Product Syma X1 Quadcopter Spare Parts wjh041 Beginner Training Area (Aircraft-Electric) 1 Nov 03, 2012 05:55 PM