JR DSX7
#1
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From: Wellington, SOUTH AFRICA
I'm looking for an upgrade. I currently have the JR X2610 transmitter. I have been snooping around and I have my eye on the DSX7. Is this a decent radio and is it worth going to Ghz? I almost never fly at a club really, but I intend to. We fly on a farm and there's usually only 2 of us. I want to get to clubs more.
#2
I don't know about the DSX7, did'nt know they make one, I have the DSX9 2.4 and it is a great radio. Had no problem with 2.4 and the way the manifactures are going you may not be able to buy any thing else in the future.
Cheers
Cheers
#4

It should be fine. Also consider the other brands such as Airtronics and Futaba. With a new TX on 2.4 you will need new RX's for each intended plane as well. About all any of them have that will work with ANY system is the battery and servos. So pick the brand you prefer.
#5
To try to clarify the above post...
In the 2.4 realm, you are stuck purchasing receivers from the manufacturer who makes the transmitter.
JR and Spektrum are basically the same company, so you can use Spektrum and JR receivers interchangeably.
If you purchase a Futaba 2.4gHz TX, you'll need to purchase only Futaba receivers, likewise with Airtronics, etc.
The DSX7 is basically a Spektrum DX-7 WITHOUT the timer feature. You may want to consider the Spektrum unit instead.
In the 2.4 realm, you are stuck purchasing receivers from the manufacturer who makes the transmitter.
JR and Spektrum are basically the same company, so you can use Spektrum and JR receivers interchangeably.
If you purchase a Futaba 2.4gHz TX, you'll need to purchase only Futaba receivers, likewise with Airtronics, etc.
The DSX7 is basically a Spektrum DX-7 WITHOUT the timer feature. You may want to consider the Spektrum unit instead.
#7
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From: Wellington, SOUTH AFRICA
Thanx guys. The reason for asking about, "Is it worth it", is because I've read about people having trouble with 2.4 a lot. Loosing signal to the plane etc etc. Don't know if this is a common thing. On the point of keeping the same manufacturers gear together with 2.4 - it would then be better for me to go JR or, as opjose pointed out, Spektrum - since these two I can get locally. Futaba and Airtronics I have to drive quite a distance to get at this stage.
#8
Korps, all the ones where I have seen people having problems with 2.4 "dropping out" have been using 4cell battery packs and I believe that the battery voltage is dropping below the threshold of the reciever and then the reciever resets. This voltage drop only needs to be for a split second and the reciever will reset. I fly with 5 cell or Lipo's and voltage reg and have been flying with 2.4 for over 18 months without a problem. One of my models now has over 150 hrs on it 9mins at a time. All models have a Volt spy in them to keep an eye on the reciever pack, not so much the voltage but the state of charge.
Cheers
Cheers
#9

ORIGINAL: Korps
Thanx guys. The reason for asking about, ''Is it worth it'', is because I've read about people having trouble with 2.4 a lot. Loosing signal to the plane etc etc. Don't know if this is a common thing. On the point of keeping the same manufacturers gear together with 2.4 - it would then be better for me to go JR or, as opjose pointed out, Spektrum - since these two I can get locally. Futaba and Airtronics I have to drive quite a distance to get at this stage.
Thanx guys. The reason for asking about, ''Is it worth it'', is because I've read about people having trouble with 2.4 a lot. Loosing signal to the plane etc etc. Don't know if this is a common thing. On the point of keeping the same manufacturers gear together with 2.4 - it would then be better for me to go JR or, as opjose pointed out, Spektrum - since these two I can get locally. Futaba and Airtronics I have to drive quite a distance to get at this stage.
Keep all options open and make the choice best for YOU.
#10
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From: Wellington, SOUTH AFRICA
Thanx Ghost and your reasoning makes a lot of sense. Yes Bruce I think you have a point there - I'll go speak to the LHS and ask them what my options are. I'm currently using 4 cell batteries. I'll just buy myself a new battery pack and rather play it safe.
#11

The non JR/Spektrum radios seem to work fine on 4 cells but you should get 5 cells or A123 batteries for JR/Spektrum. The others have much lower reset voltages but JR/Spektrum MAY have addressed this in their most recent production. Something worth investigating further. Digital servos also deserve better batteries as they seem to consume more power.
#12
Spektrum/JR came out with a simple capacitor to address low voltage...
However it is far better just to use a higher voltage pack of higher capacity.
Newer Spektrum/JR units ship with adecuate 6v packs.
There are many options... e.g. LiPo's with regulators, A123's, 5 cell NiMH and 5 cell NiCD's.
I primarily use LiPo's with regulators or 5 cell NiMH packs as both can be had inexpensively if you look.
However it is far better just to use a higher voltage pack of higher capacity.
Newer Spektrum/JR units ship with adecuate 6v packs.
There are many options... e.g. LiPo's with regulators, A123's, 5 cell NiMH and 5 cell NiCD's.
I primarily use LiPo's with regulators or 5 cell NiMH packs as both can be had inexpensively if you look.
#13

Their capacitor is NOT, by their own ad, intended for that purpose. It is meant to absorb the "noise" caused in electric carpet racers or small electric planes. It is not big enough to prevent brown-outs. This was discussed several times in the JR radio forum with their representative Dan Snyder. In a typical "glow" plane it is little more than ballast weight.
#14
Yeah I saw that discussion and agree.
But I've also seen LHS's, some advertizing and many others recommending it to help deal with momentary voltage drops and the reboot issue.
As such it would only be of minimal help.
Here is JR/Spektrums "official" wording on the advertizing...
"This is the Spektrum voltage protector capacitor. In order to make sure your Spektrum receiver always has the correct voltage, you can use this power capacitor to smooth out the voltage to the receiver. This will help avoid spikes in the receiver battery voltage due to your servos needing large pulses of current. "
But I've also seen LHS's, some advertizing and many others recommending it to help deal with momentary voltage drops and the reboot issue.
As such it would only be of minimal help.
Here is JR/Spektrums "official" wording on the advertizing...
"This is the Spektrum voltage protector capacitor. In order to make sure your Spektrum receiver always has the correct voltage, you can use this power capacitor to smooth out the voltage to the receiver. This will help avoid spikes in the receiver battery voltage due to your servos needing large pulses of current. "
#15
ORIGINAL: Korps
On the point of keeping the same manufacturers gear together with 2.4 - it would then be better for me to go JR or, as opjose pointed out, Spektrum - since these two I can get locally. Futaba and Airtronics I have to drive quite a distance to get at this stage.
On the point of keeping the same manufacturers gear together with 2.4 - it would then be better for me to go JR or, as opjose pointed out, Spektrum - since these two I can get locally. Futaba and Airtronics I have to drive quite a distance to get at this stage.

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#16
ORIGINAL: opjose
Newer Spektrum/JR units ship with adecuate 6v packs.
Newer Spektrum/JR units ship with adecuate 6v packs.
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#17
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From: Wellington, SOUTH AFRICA
Well I bought the DSX7 now. I am however sitting with another problem now. I fly Mode 1, if I'm correct now (throttle on the right stick). The radio they gave me (only one in stock) was a Mode 2 (throttle on the left stick) - they swapped the spring around so that I can use the stick on the right side as throttle.
However this has become an issue now with the setup, since I need to plug the throttle servo into the elevator slot on the Rx and the elevator into the throttle. Now this works, but of course I can't setup rates etc on the radio. Is there another way on overcoming this issue? Can one swap channels on a radio or not? Is it safe to fly this way - throttle into the elevator and visa versa?
However this has become an issue now with the setup, since I need to plug the throttle servo into the elevator slot on the Rx and the elevator into the throttle. Now this works, but of course I can't setup rates etc on the radio. Is there another way on overcoming this issue? Can one swap channels on a radio or not? Is it safe to fly this way - throttle into the elevator and visa versa?
#19
Can select between modes with my radio.
Cheers
#20
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From: BrisbaneQLD, AUSTRALIA
ORIGINAL: Korps
Ignore that question - I found it. Can select between modes with my radio.
Ignore that question - I found it. Can select between modes with my radio.




