diff --git a/server/src/sats.mjs b/server/src/sats.mjs
index 8c8ec3b..609f7bc 100644
--- a/server/src/sats.mjs
+++ b/server/src/sats.mjs
@@ -40,10 +40,11 @@ export async function pollTinyGS() {
 		const reading = parseWm(raw);
 		if (!reading.satellite || reading.satellite === '-') return;
 
-		let bucket = satellites.get(reading.satellite);
+		const key = reading.satellite + '-' + reading.freqMHz;
+		let bucket = satellites.get(key);
 		if (!bucket) {
 			bucket = { history: [], lastSeen: 0 };
-			satellites.set(reading.satellite, bucket);
+			satellites.set(key, bucket);
 		}
 
 		bucket.lastSeen = reading.timestamp;