AS2853A Digital high-frequency Q-meterDetailed product description：

As the latest generation of universal, multi-purpose, and multi range impedance testing instrument, AS2853A high-frequency Q meter has a testing frequency upper limit of 160MHz, which is currently the highest in China. The AS2853A high-frequency Q-meter adopts multiple leading technologies:
Dual scan technology - dual scan and automatic tuning search function for testing frequency and tuning capacitance.
Dual test element input - both the test frequency and tuning capacitance value can be entered through digital buttons.
Dual digital tuning - digital frequency tuning, digital capacitor tuning.
Automated measurement technology - automatically measure the Q value, resonance point frequency, and capacitance of the test piece.
Full parameter LCD display - digital display of main capacitance, inductance, Q value, signal source frequency, and resonant pointer.
DDS digital direct synthesis signal source - ensuring high fidelity of the signal source, high precision of frequency, and high stability of amplitude.
Computer automatic correction technology and test circuit optimization - minimize residual inductance in the test circuit, completely eliminating the confusion of correcting Q reading values at different frequencies.
AS2853A digital high-frequency Q-meter (100KHz -160MHz) main technical characteristics

Q-value measurement range	2~1023, range division: 30, 100, 300, 1000, automatic or manual shifting
Inherent error	≤ 5% ± 2% of the full-scale value (200kHz~10MHz), ≤ 6% ± 2% of the full-scale value (10MHz~160MHz)
working error	≤ 7% ± 2% of the full-scale value (200kHz~10MHz), ≤ 8% ± 2% of the full-scale value (10MHz~160MHz)
Inductance measurement range	4.5nH ～ 140mH
Direct measurement range of capacitance	1 ～ 200pF
Main capacitor adjustment range	18 ～ 220pF
Accuracy of main capacitor adjustment	Below 100pF ± 1pF; Above 100pF ± 1%
Signal source frequency coverage range	100kHz ～ 160MHz
Frequency segmentation (virtual)	100 ～ 999.999kHz ， 1 ～ 9.99999MHz,10 ～ 99.9999MHz ， 100 ～ 160MHz
Frequency indication error	3 × 10-5 ± 1 word