-#define radio_api_getAIF_filter() ((radio.comdata[0]>>1)|0x7)
-#define radio_api_getABN_noise_blanker_on() ((~radio.comdata[0]>>11)|0x1)
-#define radio_api_getARG_agc_on() ((radio.comdata[0]>>13)|0x1)
-
-//TASK: Flag10以下未実装
-#define radio_api_getANE_noise_squelch_on() ((~radio.comdata[10]>>1)|0x1)
-#define radio_api_getAFP_hpf() ((radio.comdata[10]>>4)|0x3)
-#define radio_api_getAFP_lpf() ((radio.comdata[10]>>2)|0x3)
-
-#define radio_api_getAVP_voice_squelch_level() ((radio.comdata[12])|0x3F)
-#define radio_api_getAVS_voice_squelch_on() ((~radio.comdata[12]>>7)|0x1)
+#define radio_api_getAIF_filter() ((radio.comdata[0]>>1)&0x7)
+#define radio_api_getABN_noise_blanker_on() ((~radio.comdata[0]>>11)&0x1)
+#define radio_api_getARG_agc_on() (~(radio.comdata[0]>>13)&0x1)
+#define radio_api_is_USB() ((radio.comdata[0]>>6)&0x1) // 1 if USB
+
+// Flag10
+#define radio_api_getANE_noise_squelch_on() ((radio.comdata[10]>>1)&0x1)
+#define radio_api_getAAF_hpf() ((radio.comdata[10]>>4)&0x3)
+#define radio_api_getAAF_lpf() ((radio.comdata[10]>>2)&0x3)
+
+// Flag 12
+#define radio_api_getAVP_voice_squelch_level() ((radio.comdata[12])&0x3F)
+#define radio_api_getAVS_voice_squelch_on() ((~radio.comdata[12]>>7)&0x1)
+
+// Set S meter
+#define radio_api_set_S_meter(s) radio.smeter = s