I have an FT-840 with a receive problem.
During receive, there is a static/clicking noise that sounds very similer to electrical noise. I've ruled out actual electrical noise as the problem is happening no matter where the radio is located.
This noise seems to be in the front end, as it appears to be affecting the AGC as well.
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Your RF gain control needs to be turned all the way up to be able to receive signals and if you are on one of the HF bands like 40 meters or any HF band the squelch control needs to be all the way off! You do not use squelch on HF! When on VHF or UHF then you would rotate the squelch control just to the point that the background noise stops and go no further. Higher squelch settings will only block weak signals and your radio will be deaf! Squelch control rotated just to the point the background noise stops! NO SQUELCH ON HF. Turn the squelch all the way off on HF!
has to do with the electrons in the air waves . Have you noticed that when you are near businesses with flourecent lights you pick up a lot of static? A traffic light may change and the electrical impulses from the change can be heard in your radio.It could also be the vehicle you are driving .Are you using a cigarette lighter plug which will give you static also . Do you have a noise blanker switch on the radio ? if yes make sure it is on and an A N L switch ,make sure it is on .
If you unplug the chat-controller cable from your headset and controller, does the click/static noise go away? If yes, then you need a new chat-controller cable. Email email@example.com for that.
If the noise remains even after you've disconnected the chat cable, then the problem is likely due to the presence of too many other Radio Frequency wireless devices competing with the X31 transmit/receive, especially if you have an 802.11n ("N") router made before Oct 2009. If that's the case, you should definitely contact Turtle Beach at firstname.lastname@example.org and ask them for help with this.
What happens if you dial your fax number the way you make a normal voice call? Does the fax machine pick the line up? Can you hear it making electronic noises? Do you hear any static or line noise?
Try also putting a regular phone on the fax line and attempt to make voice calls to test the lin quality. Listen for static, noise, volume issues. Report problems to your telecom company if you have trouble in voice calls.
If the antenna for the other properly operating radio is used with the radio with the noise and you are getting the static then we can assume it is the radio. If you hear signals with the static, that is, it does receive communications at the same time, there may be a problem with the noise reduction circuitry, or a defective component(s) in the receiver. Without knowing your experience I would suggest taking to a radio shop.