The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

Radio Make and Model: Rotel 240
PCB Number: PTBM134A0X
PLL Number: LC7137
Test gear available: Digital VOM, Analogue VOM, Frequency Counter, Dummy Load

Symptoms: Noisy TX

What is working: Everything

What has been tried: Switch cleaner mic gain VR. Checked connectionm

Did it suddenly happen ?: Fault was presant when purchased
Anything else that may be of help?:

Hi,
I have a Rotel 240 that is realy noisy on TX. sounds like a windy mic but i have tried throwing out a dead carrier (shorting the mic pins) and it's still noisy. Appart from that it's working perfect. Is there anyone with suggestions

Check the PCB for any signs of cracked traces or bad solder joints, years ago when I still lived in the UK I have one of those with the same issue and it was caused by a PCB fault.