diff --git a/src/main.c b/src/main.c
--- a/src/main.c
+++ b/src/main.c
@@ -51,6 +51,15 @@ void encode_wspr(void)
     si5351_output_enable(SI5351_CLK0, 1);
     //si5351_pll_reset(SI5351_PLLA);
 
+    // Make sure the other outputs of the SI5351 are disabled
+    si5351_output_enable(SI5351_CLK1, 0); // Disable the clock initially
+    si5351_output_enable(SI5351_CLK2, 0); // Disable the clock initially
+
+    // disable clock powers
+    si5351_set_clock_pwr(SI5351_CLK1, 0);
+    si5351_set_clock_pwr(SI5351_CLK2, 0);
+
+
     // Encode message to transmit
     wspr_encode(call, loc, dbm, tx_buffer);
 
@@ -88,7 +97,7 @@ int main(void)
     dma_init();
     adc_init();
     i2c_init();
-    gps_init();
+//    gps_init();
 
     // Disable ICs
     HAL_GPIO_WritePin(OSC_NOTEN, 1);