DSMX Sat missing 1 whisker - is that a problem?

[ticedoff8]

I had to do some maintenance on my 600N last night and I removed the DSMX sat that was attached to rear frame.

When I went back to mount the sat, I saw one of the whiskers in now missing. The other whisker is still attached.

The sat binds and lights up okay, and there are no error messages coming from the DX9

It is mounted at the back of the heli on the tailboom - away from any CF obstructions to block a signal.

Long term - I will replace the sat. I need to buy 2 more anyway

I have 2 DSMX sats hooked to my Skookum FBL controller.

Can I fly like this for a while until I get the replacement sat?

Or, should I stay grounded for a while?

[sdunne]

Would you not open it up and solder in a new antenna, just has to be a wire with the correct length.

It will not keep range with it broken.

[Ah Clem]

I would not fly it.

Not worth the risk.

You might contact Horizon, I would be willing to bet they would repair it for free.

[ticedoff8]

With the broken whisker, I expect the range to be reduced.
I wish I had a way to measure the reduction.
There is no "Data" port on the SK-540 FBL.

If I open it, and solder a new wire:
A) It voids the warranty and Horizon will not repair it (they are great)
B) How would I know that the range is "back to normal"?

I ordered a new Sat - I guess I'll leave the heli on the bench until it shows up.
Then, I'll send the old one to HH for repair / replacement.

[ragge1]

with whisker you mean antenna , depends on with side as one is the signal and the other ground

http://www.archeli.com.au/forums/sho...d.php?t=136223

had the ground side cut on my 6HV and it flew with no issues

[EEngineer]

Originally Posted by ragge1

with whisker you mean antenna , depends on with side as one is the signal and the other ground

http://www.archeli.com.au/forums/showthread.php?t=136223

had the ground side cut on my 6HV and it flew with no issues

The malarkey of a DSMX RX having one antenna wire grounded and the other "active" has been promoted by this nonsense from archeli.

It's BS

Both H-Stub dipole antenna elements must be used....neither one is "grounded"...which can be easlily determined....both by using test equipment...
in addition to reading the specs. of the radio IC.

Don't fly....your range will be reduced...

That others say go right ahead and fly...it's your money and not theirs.

Archeli's analysis of 2.4Ghz antennas is flawed and completely false....as well
as their failure to even analyze the radio IC itself.

Beware

In addition, by knowingly flying with an obvious defect, you assume all liability
if you should have an accident that injures others and/or their property.

FWIW

[DPW]

Orange Rx R100 Spektrum/JR DSM2 Satellite $6.99
and
DSMX Carbon Fuse Remote Receiver by Spektrum (SPM9646) $39.99

R100 range is identical to the above Spektrum Sat and they both have a single antenna but DSMX Carbon Fuse Remote Receiver much much longer antenna lead.
So
SPM9645 SPM9545 SPM9646 or R100 all have identical range but some have one and some have 2 antenna leads.
and
If you disconnect the Ground antenna lead from the 45s they still function
Why?
Is it active and ground antenna.
Now
Even this post tells us Sat form fit function are not affected with a ground antenna missing.

[ticedoff8]

Originally Posted by Dipweed

Orange Rx R100 Spektrum/JR DSM2 Satellite $6.99
and
DSMX Carbon Fuse Remote Receiver by Spektrum (SPM9646) $39.99

R100 range is identical to the above Spektrum Sat and they both have a single antenna but DSMX Carbon Fuse Remote Receiver much much longer antenna lead.
So
SPM9645 SPM9545 SPM9646 or R100 all have identical range but some have one and some have 2 antenna leads.
and
If you disconnect the Ground antenna lead from the 45s they still function
Why?
Is it active and ground antenna.
Now
Even this post tells us Sat form fit function are not affected with a ground antenna missing.

That's a picture of a DSM2, not a DSMX
Maybe it makes a difference?

[EEngineer]

Originally Posted by Dipweed

Orange Rx R100 Spektrum/JR DSM2 Satellite $6.99
and
DSMX Carbon Fuse Remote Receiver by Spektrum (SPM9646) $39.99

R100 range is identical to the above Spektrum Sat and they both have a single antenna but DSMX Carbon Fuse Remote Receiver much much longer antenna lead.
So
SPM9645 SPM9545 SPM9646 or R100 all have identical range but some have one and some have 2 antenna leads.
and
If you disconnect the Ground antenna lead from the 45s they still function
Why?
Is it active and ground antenna.
Now
Even this post tells us Sat form fit function are not affected with a ground antenna missing.

Total malarkey.....
That myth is in totally contradicts the specs. for the radio IC.

The perps for this myth never bothered to look at the radio IC specs
and continue....to this very day....to further this BS

FWIW

[JohnTC02]

Now why did I think of you Mr EE when I saw Dipweeds post.

[EEngineer]

Originally Posted by JohnTC02

Now why did I think of you Mr EE when I saw Dipweeds post.

[Frequency]

One isn't actually GROUNDED in the sense you are thinking. The other is ACTIVE. That's just an easier way to say Anode and cathode. They are a circuit and are dependent on each other to function properly.

[EEngineer]

In reality, BOTH are active.....neither being grounded.

That BOTH are active is the requirement for an "H-Stub" dipole to work properly
at 2.4 GHz.

FWIW