Hi,
I’ve had the bad surprise to receive a very weak signal today on RX2_H on my LimeSDR USB rev 1.4 (compared to RX1_H, with both being connected to same antenna via a splitter, and after having checked the cables). I ran LimeQuickTest with nothing attached to the board, and the board failed to pass the test… for TX2. Any suggestion? Anything that I can do at my level?
->Start time: Tue Jun 4 09:27:17 2024
->LimeSuite version: 20.10.0-PothosSDR-2021.07.25-vc16-x64->Device: LimeSDR-USB, media=USB 3.0, module=FX3, serial=0009060B00462A14, index=0, HW=4, GW=2.210
Serial Number: 0009060B00462A14
Chip temperature: 41 C[ Clock Network Test ]
->FX3 GPIF clock test
Test results: 16681; 20437; 24193 - PASSED
->Si5351C test
CLK0: 17554 / 17554 - PASSED
CLK1: 17554 / 17554 - PASSED
CLK2: 17554 / 17554 - PASSED
CLK3: 17554 / 17554 - PASSED
CLK4: 17554 / 17554 - PASSED
CLK5: 17554 / 17554 - PASSED
CLK6: 17554 / 17554 - PASSED
->ADF4002 Test
Result: 10 - PASSED
->VCTCXO test
Results : 5112918 (min); 5113055 (max) - PASSED
->Clock Network Test PASSED[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 10 0C 1C 10 0C 1C 02
->FPGA EEPROM Test PASSED[ LMS7002M Test ]
->Perform Registers Test
->External Reset line test
Reg 0x20: Write value 0xFFFD, Read value 0xFFFD
Reg 0x20: value after reset 0x0FFFF
->LMS7002M Test PASSED[ RF Loopback Test ]
Note: The test should be run without anything connected to RF ports
->Configure LMS
->Run Tests (TX_2-> LNA_L):
CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-14.3 dBFS, 5.00 MHz) - PASSED
CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-16.1 dBFS, 5.00 MHz) - PASSED
->Run Tests (TX_1 → LNA_W):
CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-14.5 dBFS, 5.00 MHz) - PASSED
CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-16.5 dBFS, 5.00 MHz) - PASSED
->Run Tests (TX_2-> LNA_H):
CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-16.0 dBFS, 5.00 MHz) - PASSED
CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-39.4 dBFS, 5.00 MHz) - FAILED
->RF Loopback Test FAILED=> Board tests FAILED <=
Elapsed time: 6.67 seconds