Works for a few seconds then cuts out

Repair of this mic is not something you can do yourself. This sort of failure is common, and I can repair it.

Removing the silicone bag and not using a pop shield can lead to condensation on the diaphragm. Place it in a bag of rice for a day to dry out any condensation on the capsule.
It may not be due to condensation though. Make sure your phantom power source is working. If possible attach another mic to the same source to see if it works. Check the contacts on the mic and also check the wire for any erosion or debris. If none of these work, fixing the mic may be beyond DIY repair.

The reason it is not being picked up by your PC is because the NT1A is a condenser microphone and it requires an audio interface that can supply phantom power (48V) to get it powered up. Without phantom power, the NT1A won't work. You many need to buy an external audio interface that provides phantom power to use the mic. Hope that helps.

The Rode NT1A requires phantom power of 24-48volts DC. The USB socket on your laptop will only supply 4.5volts.
The solution will be to buy a separate power supply or to connect it to your computer through a mixer that includes a phantom power supply option.

If it is under warranty, I recommend sending it to Rode for repair. Otherwise, I can service any Rode mic. Condenser Microphone Mod Service

Hi, what else do you do think you will need? I don't think you will need any other thing except that before you use the mic, the switch for the phantom power on the microphone is to be activated .Without the phantom being activated, the mic will not work.

It can only be activated with a mixer console that has a phantom activation on it. After connecting the mic to the mixer,activate the phantom power on the mixer and switch on the phantom power on the mic,and problem solved.

Note: Mic will not work if no phantom activated on the mixer.

That all you will need .

Thanks for using fixya....

The NT1-A will work with any mic preamp that has phantom power.

It could be caused by a range of things. but before blaming the mic, try a few things first.

To test it is actually the mic that is broken, and not any of your other gear, try using your current set up with another condenser mic. If this works, your mic is broken.

If you dont have another condeser mic available to you, try, one by one, replacing the cable, and changing the input channel on your mixer/interface.

When you try a different channel, choose an input that is on a different Phantom selector than your current one (most mixers/interfaces of 8+ channels will let you apply phantom to a group of channels, instead of all). If your mic works then, it could be an issue with your mixer's phantom power.

If all the above fails, then you should still be covered by Rode's 10 year warranty, provided it is not caused by missuse/misshandling (http://www.rodemic.com/warranty.php).

I had the same issue. The sound would fade and then go dead.. The preamp in the device I was using wasn't strong enough and also the phantom power seemed too low to sustain the microphone. After adding a TUBEPre by PreSonus, all of the issues went away and I was shocked to hear how good this microphone really is. Was the issue low phantom voltage/? or a lousy preamp? All I know is , after adding a preamp all of the problems went away.This has to be the best microphone I have tried in this price range.

This is a well known problem with the EW100 series that is easily solved.
You will need to run this reciever into a line input via a mono(TS) jack to jack lead. this will bypass the phantom power.
Make sure that you set the AV OUT to +18 in the reciever menu to get optimum level.
Phantom power is only present in the microphone inputs XLR3.
Hope this helps.
Rus.