Packet #10603924 Success

POSITION_APP packet from SkG@Tracker 📱 (SkGT) to !ffffffff

18
Total Receptions
18
Unique Gateways
4
Hop Count
37
Payload Bytes
Packet Information
Database ID: 10603924
Mesh Packet ID: 0xdd1dedff
Used for correlation across gateways
Timestamp: 2025-09-14 19:23:08 UTC
From Node: SkG@Tracker 📱 (SkGT)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 18a4 (18a4)
Channel: MediumSlow
RSSI: Unknown
SNR: Unknown
Hop Info: 4/4 hops
Start: 4, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:40.337408°
Longitude:-3.820749°
Altitude:744 m
Satellites:12
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:37 bytes
Gateway:!c0c318a4
Channel:MediumSlow
Payload Type:POSITION_APP
Hop Count:4 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !c0c318a4
Node ID format
channel_id MediumSlow
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1555771960
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 37 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1757877829
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 64
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 96
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1757877788.4496157
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: MediumSlow
  • ✓ 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 (4 hops)
MQTT-Specific Fields
Gateway ID: !c0c318a4
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:37 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.337408, "longitude": -3.8207488, "altitude": 744, "sats_in_view": 12, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!c0c318a4", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1555771960, "to": 4294967295, "id": 3709726207, "rx_time": 1757877829, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 96, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000b18150000b9fd18e805251916c7682802588a0178008001e8bba40a98010cb8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403374080, "longitude_i": -38207488, "altitude": 744, "time": 1757877785, "location_source": "LOC_INTERNAL", "PDOP": 138, "ground_speed": 0, "ground_track": 21569000, "sats_in_view": 12, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d00000b18150000b9fd18e805251916c7682802588a0178008001e8bba40a98010cb8010f
Hex Analysis:
Size:37 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 Channel Timestamp Actions
Meshtastic 18a4 (18a4) Primary 0.000s
Reference 		Unknown Unknown 4 MediumSlow 2025-09-14 19:23:08 Current
SkG@Home 🗼🌐 (SkGH) -3.717s
Before 		-33.0 dBm 8.50 dB 0 MediumSlow 2025-09-14 19:23:04 View
Perseo 🗼🌐 (nvm1) -1.392s
Before 		-102.0 dBm -6.75 dB 2 MediumSlow 2025-09-14 19:23:07 View
Will - Azuqueca (WAzq) -0.514s
Before 		-112.0 dBm -9.75 dB 3 MediumSlow 2025-09-14 19:23:07 View
Venturada2🗼🌐☀️ (Vb2) -0.427s
Before 		-95.0 dBm 1.75 dB 3 MediumSlow 2025-09-14 19:23:08 View
Meshtastic 1760 (1760) -0.195s
Before 		-129.0 dBm -11.25 dB 3 MediumSlow 2025-09-14 19:23:08 View
Rodashtastic🗼🌐 (RDSt) -0.188s
Before 		-112.0 dBm -9.00 dB 3 MediumSlow 2025-09-14 19:23:08 View
Venturada base🗼🌐 (Vb) -0.186s
Before 		-88.0 dBm 8.00 dB 3 MediumSlow 2025-09-14 19:23:08 View
@lazynoda cocidito 🥵 🗼🌐 (LNCM) -0.170s
Before 		-111.0 dBm 0.75 dB 3 MediumSlow 2025-09-14 19:23:08 View
Tlgo 📡🌐🔋🔌 (TLG0) -0.096s
Before 		-112.0 dBm -5.75 dB 3 MediumSlow 2025-09-14 19:23:08 View
Meshtastic fbec (fbec) -0.076s
Before 		-127.0 dBm -6.75 dB 3 MediumSlow 2025-09-14 19:23:08 View
Villalbilla02 (VBV2) +0.112s
After 		-115.0 dBm -5.25 dB 3 MediumSlow 2025-09-14 19:23:08 View
Ocumare_Base_🗼🌐 (CATA) +0.474s
After 		-111.0 dBm -14.50 dB 3 MediumSlow 2025-09-14 19:23:08 View
Meshtastic c498📡🌐 (C498) +0.632s
After 		-114.0 dBm -11.50 dB 4 MediumSlow 2025-09-14 19:23:09 View
Antonio 9f30 (9f30) +0.848s
After 		-121.0 dBm -15.50 dB 4 MediumSlow 2025-09-14 19:23:09 View
GRN1-Base🗼🌐 (GRN1) +0.884s
After 		-106.0 dBm 2.50 dB 4 MediumSlow 2025-09-14 19:23:09 View
Mec Rocket Meco (MRM) +1.662s
After 		-101.0 dBm 0.75 dB 4 MediumSlow 2025-09-14 19:23:10 View
MeshPrepper (MP) +2.816s
After 		-125.0 dBm -17.00 dB 4 MediumSlow 2025-09-14 19:23:11 View
18

Total Receptions

18

Unique Gateways