[NSRCA-discussion] 2.4Ghz

[AWorrest at aol.com]

I've got mixed opinions about the flight log. I flew my pattern ship all last 
year using a DX7 and the AR7000 with no problems. Later I bought the flight 
log and tested it on the AR7000. While it showed correctly there were two 
receivers in operation, some of the other readings were strange. It turned out my 
AR7000 wasn't upgraded to support the flight log. Still the flight log acted as 
if it did.

Recently I bought a R921 on e-Bay. I range tested it with the flight log. The 
readings were terrible. I sent the R921 back to Horizon. They could find 
nothing wrong. When it returned I tested it again. Still bad readings. Talked to 
Horizon again. Was told to try it in a plane. Before doing that, one more time 
I range tested it on top of a paper box. Did the exact same thing with two 
receivers that I had successfully test flow in an airplane. This last test, the 
"bad" receiver had better numbers than the two "good" ones!

I'm now wondering if these receivers retain some information after being 
turned off and this leads to erratic flight log readings. BTW, someone on one of 
the discussion lists says when there is a frame lost it is not counted as an 
antenna fade. I don't know if this is true but it does make the math work. Yes, 
I've had on occasion more frame losses than antenna fades.

Allan

In a message dated 6/25/2008 9:20:15 AM Central Daylight Time, 
jlkonn at hotmail.com writes:

> I am curious what other folk's experience has been with JR/Spektrum 2.4Ghz.
> I have experienced a frame loss when one satelite Rx showed -0- fades.  It's 
> my understanding 
> this shouldn't happen.  I have another 9ch Rx from the "Great Receiver 
> Giveaway" I'm going to 
> try but was wondering what others are finding is average for fades and frame 
> losses per flight?
> Thanks!
> JLK
> 




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