Problem with VirtualWire and FreqCount

Hi,

I can’t read the frequency properly when i add “vw_setup(2000)” from Virtualwire

#include <VirtualWire.h>
#include <FreqCount.h>


void setup() {
  
   // initialise la communication série
  Serial.begin(9600);
  FreqCount.begin(1000);
  vw_setup(2400);     // Bits par seconde
}

void loop() {
  if (FreqCount.available()) {
    int count = FreqCount.read();
    Serial.println(count);
  }
}

It works without “vw_setup(2400)” and i want to know how can i read the frequency and send it with Virtualwire.

Thanks