diff --git a/Modem/afsk.c b/Modem/afsk.c
index f8a71bc..4028757 100644
--- a/Modem/afsk.c
+++ b/Modem/afsk.c
@@ -348,18 +348,17 @@ static size_t afsk_read(KFile *fd, void *_buf, size_t size) {
 	return buffer - (uint8_t *)_buf;
 }
 
-static size_t afsk_write(KFile *fd, const void *_buf, size_t size)
-{
-	Afsk *af = AFSK_CAST(fd);
+static size_t afsk_write(KFile *fd, const void *_buf, size_t size) {
+	Afsk *afsk = AFSK_CAST(fd);
 	const uint8_t *buf = (const uint8_t *)_buf;
 
-	while (size--)
-	{
-		while (fifo_isfull_locked(&af->txFifo))
+	while (size--) {
+		while (fifo_isfull_locked(&afsk->txFifo)) {
 			cpu_relax();
+		}
 
-		fifo_push_locked(&af->txFifo, *buf++);
-		afsk_txStart(af);
+		fifo_push_locked(&afsk->txFifo, *buf++);
+		afsk_txStart(afsk);
 	}
 
 	return buf - (const uint8_t *)_buf;
diff --git a/Modem/main.c b/Modem/main.c
index d0831a4..4fae4e4 100644
--- a/Modem/main.c
+++ b/Modem/main.c
@@ -60,7 +60,7 @@ int main(void)
 		}
 
 		// Use AX.25 to send test data
-		if (timer_clock() - start > ms_to_ticks(15000L))
+		if (timer_clock() - start > ms_to_ticks(4000L))
 		{
 			kputs("Test TX\n");
 			start = timer_clock();
diff --git a/buildrev.h b/buildrev.h
index 3a49074..08f2960 100644
--- a/buildrev.h
+++ b/buildrev.h
@@ -1,2 +1,2 @@
-#define VERS_BUILD 117
+#define VERS_BUILD 119
 #define VERS_HOST  "vixen"