RF Image rejection test fails at exact frequency. but gets good BER at nearby frequencies.

2 次查看（过去 30 天）
Rezim
Rezim 2025-1-28
I was testing my Receiver for various tests. It gave good sensitivity at -116 dBm. Selectivity and blocking tests went well. When got into image rejection test, something weird is happening.
My RF in = 868.500 MHz.
LO_freq = 870 MHz.
Image frequency = 870.500 MHz (I tested it as both modulated signal and continuous wave signal).
The issue is i dont meet BER requirement when image signal is kept at the exact 870.500 MHz. But i meet BER requirement when i test with 870.499 and 870.501 MHz. what could be the possible reason?

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Communications Toolbox 的更多信息

标签

产品


版本

R2024b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by