MTS2000 w/scratchy audio

[KE7JFF]

My Trusty MTS2000 in the past month or so seems to have this issue of the TX audio half the time will have scratching noises even at total silence. It appears both on the internal and the external speaker microphone. An inspection of the interior of the radio shows no intermittent connections on the little bridge connector nor elsewhere.

There is no exact pattern of this scratchy TX audio but it does reduce itself it seems slowly longer the radio is on, but sometimes it does not and gets worse. I know movement can make it worse sometimes too. RX audio is fine.

Any ideas?

[fineshot1]

My Trusty MTS2000 in the past month or so seems to have this issue of the TX audio half the time will have scratching noises even at total silence. It appears both on the internal and the external speaker microphone. An inspection of the interior of the radio shows no intermittent connections on the little bridge connector nor elsewhere.

There is no exact pattern of this scratchy TX audio but it does reduce itself it seems slowly longer the radio is on, but sometimes it does not and gets worse. I know movement can make it worse sometimes too. RX audio is fine.

Any ideas?

This sounds like the scratchy audio problem I used to fix most of the time with REX Kit "REX4465A".

EDIT: I just found the reference to the SRN1202D on batlabs below:

http://batboard.batlabs.com/viewtopic.p ... 4&p=357086

[KE7JFF]

My Trusty MTS2000 in the past month or so seems to have this issue of the TX audio half the time will have scratching noises even at total silence. It appears both on the internal and the external speaker microphone. An inspection of the interior of the radio shows no intermittent connections on the little bridge connector nor elsewhere.

There is no exact pattern of this scratchy TX audio but it does reduce itself it seems slowly longer the radio is on, but sometimes it does not and gets worse. I know movement can make it worse sometimes too. RX audio is fine.

Any ideas?

This sounds like the scratchy audio problem I used to fix most of the time with REX Kit "REX4465A".

EDIT: I just found the reference to the SRN1202D on batlabs below:

http://batboard.batlabs.com/viewtopic.p ... 4&p=357086

Thanks! I ended doing to start with the soldering procedure mentioned in the 2nd post of that thread and my problem went away!