Packet #3434556 Success

POSITION_APP packet from Piano Tuner (Car) to !ffffffff

19
Total Receptions
19
Unique Gateways
5
Hop Count
46
Payload Bytes
Packet Information
Database ID: 3434556
Mesh Packet ID: 0x82d679e3
Used for correlation across gateways
Timestamp: 2025-12-11 15:35:35 UTC
From Node: Piano Tuner (Car)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 631c (GRBH)
Channel: LongFast
RSSI: -109 dBm
SNR: -20.25 dBm
Hop Info: 5/7 hops
Start: 7, Limit: 2
Relay Node: 72 GSIP
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: 46 bytes
Decoded: Yes
Decoded Data:
Latitude:40.940339°
Longitude:-74.127770°
Altitude:32 m
Satellites:10
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:46 bytes
Gateway:!db51631c
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:5 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !db51631c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (46 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2997290056
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 46 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -109.0 dBm
Signal strength at gateway 		int32
rx_snr -20.25 dB
Signal quality at gateway 		float
rx_time 1765467474
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 114
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765467335.3746896
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)
  • ✓ Gateway node ID tracked
  • ✓ Reduced position precision: ~729.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51631c
Position Precision: 15 bits (~729.0m accuracy)
Position precision meters: 729.0
Signal Metrics: RSSI: -109.0 dBm
SNR: -20.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:46 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.9403392, "longitude": -74.1277696, "altitude": 32, "sats_in_view": 10, "precision_bits": 15 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51631c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997290056, "to": 4294967295, "id": 2195093987, "rx_time": 1765467474, "rx_snr": -20.25, "rx_rssi": -109, "hop_limit": 2, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 114, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00006718150000d1d318202527e53a6928023dfce43a69503f58ef0178008001b8c9840798010ab00101b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 409403392, "longitude_i": -741277696, "altitude": 32, "time": 1765467431, "location_source": "LOC_INTERNAL", "timestamp": 1765467388, "altitude_geoidal_separation": -32, "PDOP": 239, "ground_speed": 0, "ground_track": 14755000, "sats_in_view": 10, "seq_number": 1, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (46 bytes)
0d00006718150000d1d318202527e53a6928023dfce43a69503f58ef0178008001b8c9840798010ab00101b8010f
Hex Analysis:
Size:46 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 631c (GRBH) Primary 0.000s
Reference 		-109.0 dBm -20.25 dB 5 72 GSIP LongFast 2025-12-11 15:35:35 UTC Current
NorthHaledon - Dorothy (NHDO) -11.837s
Before 		-105.0 dBm -11.50 dB 3 81 RAK3 LongFast 2025-12-11 15:35:23 UTC View
dkTowerBot (dkTB) -9.177s
Before 		-103.0 dBm -16.00 dB 3 58 pb2! , 6758 , CBZ0 , WFMK LongFast 2025-12-11 15:35:26 UTC View
Izutsumi - seano@masto.nyc (izu) -7.674s
Before 		-90.0 dBm -3.00 dB 3 5b wvs1 LongFast 2025-12-11 15:35:27 UTC View
Claudiopolis-440c (440c) -7.529s
Before 		-91.0 dBm -6.75 dB 3 5b wvs1 , P0NY LongFast 2025-12-11 15:35:27 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -7.087s
Before 		-115.0 dBm -14.00 dB 3 5b wvs1 LongFast 2025-12-11 15:35:28 UTC View
25 Washington Ave (25WA) -7.007s
Before 		-71.0 dBm -5.25 dB 4 c9 Penn LongFast 2025-12-11 15:35:28 UTC View
ClaremontWx.net (CmWx) -6.995s
Before 		-87.0 dBm 1.50 dB 4 c9 Penn , JLX3 LongFast 2025-12-11 15:35:28 UTC View
K2XAP Gateway (XAPg) -6.900s
Before 		-111.0 dBm -5.75 dB 4 c9 Penn LongFast 2025-12-11 15:35:28 UTC View
K2XAP / nyme.sh (XAP) -6.780s
Before 		-114.0 dBm -10.50 dB 4 c9 Penn , JLX3 LongFast 2025-12-11 15:35:28 UTC View
Mobile Fish 4 (MF4) -5.494s
Before 		-111.0 dBm -8.75 dB 5 40 LongFast 2025-12-11 15:35:29 UTC View
Fried Fish FF1 (FF1) -5.439s
Before 		-79.0 dBm 1.75 dB 5 40 BRRN LongFast 2025-12-11 15:35:29 UTC View
Steiner Studios Tower (SST) -4.370s
Before 		-80.0 dBm 6.00 dB 5 25 25WA LongFast 2025-12-11 15:35:31 UTC View
YMH 1 @ Your Mom’s House (YMH1) -4.356s
Before 		-113.0 dBm -6.00 dB 5 25 25WA LongFast 2025-12-11 15:35:31 UTC View
Sunset Soda (p8p) -1.563s
Before 		-128.0 dBm -19.75 dB 4 57 CmWx LongFast 2025-12-11 15:35:33 UTC View
Whole Foods Market UES (WFMK) +0.338s
After 		-112.0 dBm -12.00 dB 6 98 9c98 LongFast 2025-12-11 15:35:35 UTC View
DRP0 Astoria (DRP0) +2.720s
After 		-74.0 dBm -1.50 dB 5 b2 😴 , CBZ1 LongFast 2025-12-11 15:35:38 UTC View
drp mobile (drpm) +4.453s
After 		-15.0 dBm 6.25 dB 6 7c DRP0 LongFast 2025-12-11 15:35:39 UTC View
BDP3 - Wio L1 (BDP3) +66.692s
After 		-117.0 dBm -7.00 dB 5 d5 ETNA LongFast 2025-12-11 15:36:42 UTC View
19

Total Receptions

19

Unique Gateways