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HelicopterAlignT-REX 700N › JR R921 9 Ch RX or AR7000 for 700N?
07-12-2008 08:26 PM  9 years agoPost 1
Rockohaulic

rrElite Veteran

Canyon Country, CA,​USA, 3rd Rock from​the Sun

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I have a JR 921 RX on my Trex 600N, and I had an AR7000 on the Xtreme 50 which is now designated for the 700N.

Should I simply install the 7000 on the 700N and be done with it?

Put another way, the 9CH RX is a 2048 RX, and the 7000 is a slower 1024 RX. If you had both RXs sitting on the bench, would you install the faster 9CH RX in the bigger 700N, or in the smaller, more nimble 600N???

And why?

Decisions decisions............

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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07-12-2008 08:30 PM  9 years agoPost 2
Dood

rrProfessor

Wescanson

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who said anything about the JR921 being "faster"?

The JR R921 is capable of higher resolution.
resolution is not speed.

This is a screen cap from Spektrum's website, "Understanding Resolution"

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▲ ▲

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07-13-2008 01:31 AM  9 years agoPost 3
Rockohaulic

rrElite Veteran

Canyon Country, CA,​USA, 3rd Rock from​the Sun

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OK.............

So do I want my radio to have more steps in its range of motion with the 600N or the 700N?????

Saturday morning I flew my helicopter in my pajamas
How it got in my pajamas I'll never know

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07-13-2008 03:23 PM  9 years agoPost 4
BJames111

rrElite Veteran

San Diego,​California

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ok, so what resolution does the DX7 transmit?

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07-13-2008 04:12 PM  9 years agoPost 5
baddynergy

rrElite Veteran

sierra madre, ca-​usa

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you will never notice the difference in the air. Run whichever one fits better in the radio tray.

**Unattended children will be givin a shot of espresso and a puppy**

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07-13-2008 04:16 PM  9 years agoPost 6
Dr_Crash

rrVeteran

Keller, TX

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Rockohaulic,

You should take a look at the link below. JKOS shows graphs of the various combinations of TX and RX's. The 921/x9303 is faster vs. a AR7000/x9303. Its hard to beat the DX7 and the AR7000.

Take a look. I have the x9303 so I am on the fence about using 921 or the new AR7100R. Both are 2048 resolution.

TX/RX eCCPM Latency Test Results

Chris

Bobby Jack's Hobbies

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