zoom h4 strange linear frecuency

hueso76

New member
Hi There, I´m a owner from a brand new zoom h4 and a brand new rode ntg2 , i have noticed a strange linear frecuency when I record in wav 48 khz ,

its almost inaudible , but its a headache, if you buy two new items why this problem?

I change the sd card , (both whit the same problem) I use battery 2xAA , and I tried whit a battery pack 9.6V and the same problem , please if somebody could help me i will thanks a lot

an Audition screenshot


 
Wabbit , you´r right , thanks , I did´nt see that the TV was always on in my audio test,
I am feeling so idiot , many thanks.
 
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