diff --git a/main.go b/main.go
index 45d0c6d..446aa4b 100644
--- a/main.go
+++ b/main.go
@@ -148,13 +148,13 @@ type SaltResponse struct {
 }
 
 type DOCSISChannelInfo struct {
-	Type          ChannelType
-	Power         float64
-	RangingStatus *string
-	SNR           *float64
-	Direction     ChannelDirection
-	Frequency     uint64
-	ID            string
+	Type      ChannelType
+	Power     float64
+	RangingOK *bool
+	SNR       *float64
+	Direction ChannelDirection
+	Frequency uint64
+	ID        string
 }
 
 func main() {
@@ -227,7 +227,7 @@ func main() {
 		enc.AddField("power", lineprotocol.MustNewValue(channel.Power))
 
 		if channel.Direction == UP {
-			enc.AddField("ranging_status", lineprotocol.MustNewValue(*channel.RangingStatus))
+			enc.AddField("ranging_ok", lineprotocol.BoolValue(*channel.RangingOK))
 		} else {
 			enc.AddField("snr", lineprotocol.MustNewValue(*channel.SNR))
 		}
@@ -416,24 +416,26 @@ func transformDOCSIS(rawDOCSIS *DOCSISResponse) (nChannels []*DOCSISChannelInfo)
 	}
 
 	for _, channel := range rawDOCSIS.OfdmaUpstream {
+		rangingOk := channel.RangingStatus != "Completed"
 		nChannels = append(nChannels, &DOCSISChannelInfo{
-			Type:          ChannelType(channel.ChannelType),
-			Power:         powerStr2Power(channel.Power),
-			RangingStatus: &channel.RangingStatus,
-			Direction:     UP,
-			Frequency:     freqStr2Hz(channel.CentralFrequency),
-			ID:            channel.ChannelIDUp,
+			Type:      ChannelType(channel.ChannelType),
+			Power:     powerStr2Power(channel.Power),
+			RangingOK: &rangingOk,
+			Direction: UP,
+			Frequency: freqStr2Hz(channel.CentralFrequency),
+			ID:        channel.ChannelIDUp,
 		})
 	}
 
 	for _, channel := range rawDOCSIS.Upstream {
+		rangingOk := channel.RangingStatus != "Completed"
 		nChannels = append(nChannels, &DOCSISChannelInfo{
-			Type:          ChannelType(channel.ChannelType),
-			Power:         powerStr2Power(channel.Power),
-			RangingStatus: &channel.RangingStatus,
-			Direction:     UP,
-			Frequency:     freqStr2Hz(channel.CentralFrequency),
-			ID:            channel.ChannelIDUp,
+			Type:      ChannelType(channel.ChannelType),
+			Power:     powerStr2Power(channel.Power),
+			RangingOK: &rangingOk,
+			Direction: UP,
+			Frequency: freqStr2Hz(channel.CentralFrequency),
+			ID:        channel.ChannelIDUp,
 		})
 	}