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Author Topic: Rohde &Schwarz VNA ZVA 50 output power level low  (Read 662 times)

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Offline yingziwinTopic starter

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  • Country: cn
Rohde &Schwarz VNA ZVA 50 output power level low
« on: December 24, 2019, 03:38:38 am »
Hello，I have an Rohde&Schwarze zva 50.The analyzer's output power level is set to zero,port 1's output power in all frequency band is -30dbm,and port 2's output power is -40dbm.Now I think the RF output amp chip is defective.But I have no information about this chip.Can anyone recognise this chip?The markings are DA9DB.The company's logo looks as shown in the picture.
« Last Edit: December 24, 2019, 09:00:56 am by yingziwin »
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Offline yingziwinTopic starter

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  • Posts: 5
  • Country: cn
Re: ZVA 50 output power level low
« Reply #1 on: December 24, 2019, 03:43:30 am »
The company's logo looks as shown in the picture.
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