Packet #28351011 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

24
Total Receptions
24
Unique Gateways
3
Hop Count
45
Payload Bytes
Packet Information
Database ID: 28351011
Mesh Packet ID: 0x7f2bfb18
Used for correlation across gateways
Timestamp: 2025-12-17 21:51:39 UTC
From Node: Kala_CLM (Kala)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 1760 (1760)
Channel: MediumFast
RSSI: -115 dBm
SNR: Unknown
Hop Info: 3/7 hops
Start: 7, Limit: 4
Relay Node: f5 RPT4
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: POSITION_APP
Size: 45 bytes
Decoded: Yes
Decoded Data:
Latitude:40.298086°
Longitude:-3.440640°
Altitude:-52 m
Satellites:6
Precision:15 bits
Raw Packet Analysis
Complete field breakdown and MQTT privacy/exposure analysis
Packet Structure
MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)
Total Size:45 bytes
Gateway:!c0c31760
Channel:MediumFast
Payload Type:POSITION_APP
Hop Count:3 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !c0c31760
Node ID format
channel_id MediumFast
packet MeshPacket (45 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3877556925
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 45 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -115.0 dBm
Signal strength at gateway 		int32
rx_snr Not set float
rx_time 1766008296
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority Not set enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 245
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766008299.2789679
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !c0c31760
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -115.0 dBm
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:45 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.2980864, "longitude": -3.44064, "altitude": -52, "sats_in_view": 6, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c0c31760", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 2133588760, "rx_time": 1766008296, "rx_snr": 0.0, "rx_rssi": -115, "hop_limit": 4, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 245, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000518150000f3fd18ccffffffffffffffff0125dd25436928025889047801800190d69207980106b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 402980864, "longitude_i": -34406400, "altitude": -52, "time": 1766008285, "location_source": "LOC_INTERNAL", "PDOP": 521, "ground_speed": 1, "ground_track": 14986000, "sats_in_view": 6, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (45 bytes)
0d00000518150000f3fd18ccffffffffffffffff0125dd25436928025889047801800190d69207980106b8010f
Hex Analysis:
Size:45 bytes
Format:Protobuf (Protocol Buffers)
Encoding:Binary with varint and length-delimited fields
This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.
All Receptions
All gateways that received this packet
Correlation: Using Mesh Packet ID
Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
Meshtastic 1760 (1760) Primary 0.000s
Reference 		-115.0 dBm Unknown 3 f5 RPT4 MediumFast 2025-12-17 21:51:39 UTC Current
Anubis_Base 🔌🏢 (Anu2) -4.262s
Before 		-98.0 dBm -6.00 dB 0 bd Kala MediumFast 2025-12-17 21:51:35 UTC View
Meshtastic 26b0 (26b0) -3.076s
Before 		-91.0 dBm 4.50 dB 1 fc Anu2 MediumFast 2025-12-17 21:51:36 UTC View
[samsepi0l] 📡🌐 (tlg0) -3.054s
Before 		-88.0 dBm 4.00 dB 1 fc 74fc , Anu2 MediumFast 2025-12-17 21:51:36 UTC View
XiaoWatt c4c8 🌐🔌 (c4c8) -2.603s
Before 		-78.0 dBm 8.75 dB 2 b0 Vbm , 26b0 MediumFast 2025-12-17 21:51:36 UTC View
Ocumare Norte🗼🌐 (RRN) -1.955s
Before 		-103.0 dBm -9.00 dB 2 b0 Vbm , 26b0 MediumFast 2025-12-17 21:51:37 UTC View
JAGO1_Cañaveral (JAGO) -1.923s
Before 		Unknown 10.25 dB 3 70 JAG2 MediumFast 2025-12-17 21:51:37 UTC View
Mec Rocket Meco (MRM) -1.680s
Before 		-111.0 dBm -12.00 dB 3 13 Sir MediumFast 2025-12-17 21:51:37 UTC View
Meshtastic JT01 (JT01) -0.903s
Before 		-125.0 dBm -13.75 dB 4 04 MediumFast 2025-12-17 21:51:38 UTC View
Eagle’s Nest (EAGL) -0.806s
Before 		-104.0 dBm 5.00 dB 4 48 SMR1 MediumFast 2025-12-17 21:51:38 UTC View
Karabanchel_Baldur (KarB) -0.163s
Before 		-90.0 dBm 3.00 dB 4 2d SkyB MediumFast 2025-12-17 21:51:39 UTC View
Meshtastic b2b4📡🌐 (b2b4) -0.160s
Before 		-107.0 dBm -5.00 dB 4 2d SkyB MediumFast 2025-12-17 21:51:39 UTC View
🤖 Nicolas Cage 🌐 (Cage) +0.129s
After 		-67.0 dBm 11.25 dB 4 2d SkyB MediumFast 2025-12-17 21:51:39 UTC View
🎄 SkG@Home 📡🌐 (SkGH) +0.131s
After 		-95.0 dBm -4.50 dB 5 61 TO1 MediumFast 2025-12-17 21:51:39 UTC View
tizon (Sylv) +0.349s
After 		Unknown Unknown 5 0c Sylv MediumFast 2025-12-17 21:51:39 UTC View
Meshtastic 18a4 (18a4) +0.377s
After 		Unknown Unknown 4 60 1760 MediumFast 2025-12-17 21:51:39 UTC View
Fenix (FENX) +0.445s
After 		-118.0 dBm -10.75 dB 5 61 TO1 MediumFast 2025-12-17 21:51:39 UTC View
Villarejo01 (VIL1) +0.483s
After 		-119.0 dBm -15.25 dB 5 61 TO1 MediumFast 2025-12-17 21:51:39 UTC View
MOVIL 1 🟢 MANCHASTIC (MV1V) +0.485s
After 		-67.0 dBm 11.00 dB 6 c9 MediumFast 2025-12-17 21:51:39 UTC View
ETH Goose (ET03) +1.178s
After 		-36.0 dBm 10.75 dB 6 41 ET01 MediumFast 2025-12-17 21:51:40 UTC View
Skynet (Sky) +1.272s
After 		-43.0 dBm 10.50 dB 4 2d SkyB MediumFast 2025-12-17 21:51:40 UTC View
ETH Maverick (ET01) +1.373s
After 		-106.0 dBm -5.75 dB 5 61 TO1 MediumFast 2025-12-17 21:51:40 UTC View
PXT_Home (PXT1) +2.295s
After 		-112.0 dBm -4.25 dB 7 a4 HelB MediumFast 2025-12-17 21:51:41 UTC View
X Wing 🚀 Kenobi (Knb2) +6.303s
After 		-26.0 dBm 12.50 dB 4 b5 Knb0 MediumFast 2025-12-17 21:51:45 UTC View
24

Total Receptions

24

Unique Gateways