Spektrum DX7 voltage
#1
Junior Member
Thread Starter
Join Date: Oct 2011
Location: Jasper,
TX
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
Spektrum DX7 voltage
My DX7 on one model memory shows low voltage ( falls as I'm watching) and on all other model memories it shows good voltage. This is after a full charge and I've checked it with a volt meter. The charger is working right and the battery in the tx shows 12+ volts. This model memory is one that was started to program exponential on my plane to cure it's twitchiness. The problem with this is that the tx shows low battery and shuts down. I can of course fly on the other memory, but I don't like unknowns.
Any help appreciated,
Ed
Any help appreciated,
Ed
#2
RE: Spektrum DX7 voltage
G'day Ed,
First I would copy that model to another memory slot, rebind, & check the voltage.
When I had a DX7 it didn't matter what memory I was on, the voltage showed the same.
Also, If your plane is twitchy, forget Expo, for a minute, reduce the throws with dual rates, use the low rate, at 10% less than you have now,
& fly it, if it's still too twitchy reduce the rate by a bit more, then when it's comfortable to fly, maybe then you might introduce a small amount of Expo.
Expo is a fine tuning adjustment, it is not a cure all, because when you reach the Expo point, you have full travel & it's even more twitchy.
If you start with reduced thows, you can easily go to a high rate, with flick of a switch, if you set it that way.
Cheers
First I would copy that model to another memory slot, rebind, & check the voltage.
When I had a DX7 it didn't matter what memory I was on, the voltage showed the same.
Also, If your plane is twitchy, forget Expo, for a minute, reduce the throws with dual rates, use the low rate, at 10% less than you have now,
& fly it, if it's still too twitchy reduce the rate by a bit more, then when it's comfortable to fly, maybe then you might introduce a small amount of Expo.
Expo is a fine tuning adjustment, it is not a cure all, because when you reach the Expo point, you have full travel & it's even more twitchy.
If you start with reduced thows, you can easily go to a high rate, with flick of a switch, if you set it that way.
Cheers
#3
Junior Member
Thread Starter
Join Date: Oct 2011
Location: Jasper,
TX
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
RE: Spektrum DX7 voltage
Thanks for the reply Alan,
I already had another memory position for this plane, I went back to it and rebound and no voltage drop. That one model memory is the only place that the tx shows a ( false) voltage drop all other memories show true voltage readings. I just don't like that my tx shows this false voltage drop and shuts down. You need to be able to trust your tx, right?
Ed
I already had another memory position for this plane, I went back to it and rebound and no voltage drop. That one model memory is the only place that the tx shows a ( false) voltage drop all other memories show true voltage readings. I just don't like that my tx shows this false voltage drop and shuts down. You need to be able to trust your tx, right?
Ed
#4
RE: Spektrum DX7 voltage
G'day Ed,
Too right, I have been having trouble with my radio lately, or at least I thought I was, turned out to be a faulty switch, in the plane.
I checked batteries, replaced leads, then the penny dropped, & I bypassed the switch, full voltage to RX.
I know that is nothing like your problem. Just venting. LOL.
Have you thought about contacting Horrizon Hobbies?
It might be worth sending in, for a checkup.
Cheers
Too right, I have been having trouble with my radio lately, or at least I thought I was, turned out to be a faulty switch, in the plane.
I checked batteries, replaced leads, then the penny dropped, & I bypassed the switch, full voltage to RX.
I know that is nothing like your problem. Just venting. LOL.
Have you thought about contacting Horrizon Hobbies?
It might be worth sending in, for a checkup.
Cheers
#6
Senior Member
Join Date: Sep 2007
Location: Sanger,
CA
Posts: 427
Likes: 0
Received 0 Likes
on
0 Posts
RE: Spektrum DX7 voltage
What you may be seeing is that your Tx pack may be getting weak.If you setup a model and are playing with the programming and havent actually bound it to a DSM2 Rx it may be operating in original DSM mode.DSM is alot more power hungry on the Tx than DSM2.If the pack is less up to the task and it is in DSM mode it may suck the voltage down quite a bit more rapidly.This is likely why you see a difference in power use from one memory compared to another.The pack may be handling the DSM2 load reasonably adequately but just isnt up to the task of feeding the DSM demand anymore.
#7
My Feedback: (2)
RE: Spektrum DX7 voltage
ORIGINAL: edjahar42
My DX7 on one model memory shows low voltage ( falls as I'm watching) and on all other model memories it shows good voltage. This is after a full charge and I've checked it with a volt meter. The charger is working right and the battery in the tx shows 12+ volts. This model memory is one that was started to program exponential on my plane to cure it's twitchiness. The problem with this is that the tx shows low battery and shuts down. I can of course fly on the other memory, but I don't like unknowns.
Any help appreciated,
Ed
My DX7 on one model memory shows low voltage ( falls as I'm watching) and on all other model memories it shows good voltage. This is after a full charge and I've checked it with a volt meter. The charger is working right and the battery in the tx shows 12+ volts. This model memory is one that was started to program exponential on my plane to cure it's twitchiness. The problem with this is that the tx shows low battery and shuts down. I can of course fly on the other memory, but I don't like unknowns.
Any help appreciated,
Ed
#9
Junior Member
Thread Starter
Join Date: Oct 2011
Location: Jasper,
TX
Posts: 24
Likes: 0
Received 0 Likes
on
0 Posts
RE: Spektrum DX7 voltage
Thanks guys, Rich I plugged my simulator cable into the trainer port and turned the tx on and it showed the same voltage as on the other model memories. What does this mean?
Ed
Ed
#10
My Feedback: (2)
RE: Spektrum DX7 voltage
ORIGINAL: edjahar42
Thanks guys, Rich I plugged my simulator cable into the trainer port and turned the tx on and it showed the same voltage as on the other model memories. What does this mean?
Ed
Thanks guys, Rich I plugged my simulator cable into the trainer port and turned the tx on and it showed the same voltage as on the other model memories. What does this mean?
Ed