mirror of
https://github.com/OneOfEleven/uv-k5-firmware-custom.git
synced 2025-04-29 14:51:26 +03:00
Re-adjusted RX front end gains above 226.4MHz
This commit is contained in:
parent
0390cf792a
commit
630a17a7ed
24
app/app.c
24
app/app.c
@ -541,17 +541,33 @@ void APP_StartListening(FUNCTION_Type_t Function)
|
||||
// MIXER ...... 0dB
|
||||
// PGA ........ -15dB
|
||||
// LNA SHORT LNA MIXER PGA
|
||||
uint8_t pga = 6u;
|
||||
{
|
||||
uint16_t lna_short;
|
||||
uint16_t lna;
|
||||
uint16_t mixer;
|
||||
uint16_t pga;
|
||||
if (rx_frequency < 22640000) // seem to need more gain above this frequency
|
||||
pga = 3u;
|
||||
{
|
||||
lna_short = 3; // original
|
||||
lna = 2; // original
|
||||
mixer = 3; // original
|
||||
pga = 3; // reduced
|
||||
}
|
||||
else
|
||||
pga = 6u;
|
||||
{
|
||||
lna_short = 3; // original
|
||||
lna = 3; // increased
|
||||
mixer = 3; // original
|
||||
// pga = 6; // original
|
||||
pga = 7; // increased
|
||||
}
|
||||
|
||||
BK4819_WriteRegister(BK4819_REG_13, (3u << 8) | (2u << 5) | (3u << 3) | (pga << 0));
|
||||
BK4819_WriteRegister(BK4819_REG_13, (lna_short << 8) | (lna << 5) | (mixer << 3) | (pga << 0));
|
||||
//BK4819_WriteRegister(BK4819_REG_12, 0x037B); // 000000 11 011 11 011
|
||||
//BK4819_WriteRegister(BK4819_REG_11, 0x027B); // 000000 10 011 11 011
|
||||
//BK4819_WriteRegister(BK4819_REG_10, 0x007A); // 000000 00 011 11 010
|
||||
//BK4819_WriteRegister(BK4819_REG_14, 0x0019); // 000000 00 000 11 001
|
||||
}
|
||||
|
||||
gNeverUsed = 0;
|
||||
}
|
||||
|
BIN
firmware.bin
BIN
firmware.bin
Binary file not shown.
Binary file not shown.
Loading…
x
Reference in New Issue
Block a user