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Open box: An item in excellent, new condition with no wear. The item may be missing the original packaging or
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Free
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United States
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Standard SpeedPAK from China/Hong Kong/Taiwan
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Estimated between Fri. Dec. 27 and Wed. Jan. 8
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US $35.00
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US $20.00
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United States
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Expedited Shipping from China/Hong Kong/Taiwan to worldwide
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Estimated between Wed. Dec. 18 and Thu. Dec. 26
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Handling time
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Will usually ship within 1 business day of receiving cleared payment - opens in a new window or tab.
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5
4
3
2
1
Would recommend
Good value
Good quality
Best if considered as a poorly preassembled kit.
The basic concept is that, when driven by a signal into 'Input', a receiver connected to 'OUT' should receive substantially different signals based on differences between 'REF' and 'DUT', which should be nominally symmetric. That is NOT the case for the device received. In attached plots, yellow trace is log magnitude return to VNA TX port, and blue trace is log magnitude signal received by VNA RX port for 104kHz to 1.975MHz. First plot is with 50 Ohm REF and 50 Ohm DUT. Second is with 50 Ohm REF and open DUT Third is with open REF and DUT Last is with open REF and 50 Ohm DUT In case traces get scrambled, blue trace mostly depends on REF, independent of whether or not matching DUT, so far from ideal. These results suggest wrong or poor soldering and/or components.
Verified purchase: Yes | Condition: new | Sold by: seller25812