Packet #1989011 Success

POSITION_APP packet from Meshtastic b808 (b808) to !ffffffff

16
Total Receptions
16
Unique Gateways
4
Hop Count
17
Payload Bytes
Packet Information
Database ID: 1989011
Mesh Packet ID: 0xfd1941f7
Used for correlation across gateways
Timestamp: 2025-11-13 03:21:55 UTC
From Node: Meshtastic b808 (b808)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic 631c (631c)
Channel: LongFast
RSSI: -91 dBm
SNR: -1.25 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Relay Node: 23 P4NY
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: 17 bytes
Decoded: Yes
Decoded Data:
Latitude:40.763392°
Longitude:-73.793536°
Altitude:26 m
Precision:13 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:17 bytes
Gateway:!db51631c
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:4 / 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 (17 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3679565832
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 17 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -91.0 dBm
Signal strength at gateway 		int32
rx_snr -1.25 dB
Signal quality at gateway 		float
rx_time 1763004194
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 35
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1763004115.1895952
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: ~2900.0m accuracy
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51631c
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -91.0 dBm
SNR: -1.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:17 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.763392, "longitude": -73.793536, "altitude": 26, "sats_in_view": null, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51631c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679565832, "to": 4294967295, "id": 4246290935, "rx_time": 1763004194, "rx_snr": -1.25, "rx_rssi": -91, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 35, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004c1815000004d4181a2803b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407633920, "longitude_i": -737935360, "altitude": 26, "location_source": "LOC_EXTERNAL", "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (17 bytes)
0d00004c1815000004d4181a2803b8010d
Hex Analysis:
Size:17 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 (631c) Primary 0.000s
Reference 		-91.0 dBm -1.25 dB 4 23 P4NY LongFast 2025-11-13 03:21:55 UTC Current
K2XAP V4 MS (XAP4) -393.296s
Before 		-67.0 dBm 1.00 dB 2 c9 Penn LongFast 2025-11-13 03:15:21 UTC View
aurelia (🧚) -393.245s
Before 		-119.0 dBm -10.25 dB 1 d5 ETNA LongFast 2025-11-13 03:15:21 UTC View
Gowanus Soda (p1p) -392.998s
Before 		-120.0 dBm -18.75 dB 2 c9 Penn LongFast 2025-11-13 03:15:22 UTC View
DRP1 Chelsea (DRP1) -392.920s
Before 		-78.0 dBm 5.75 dB 2 c9 Penn , JLX3 LongFast 2025-11-13 03:15:22 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -392.487s
Before 		-97.0 dBm 3.75 dB 2 c9 Penn LongFast 2025-11-13 03:15:22 UTC View
K2XAP / nyme.sh (XAP) -392.256s
Before 		-118.0 dBm -7.75 dB 2 c9 Penn , JLX3 LongFast 2025-11-13 03:15:22 UTC View
Fried Fish 1 | nyme.sh (FF1) -392.150s
Before 		-83.0 dBm 3.25 dB 3 40 BRRN LongFast 2025-11-13 03:15:23 UTC View
P0NY Express Solar Node (P0NY) -391.007s
Before 		-103.0 dBm 1.75 dB 3 - LongFast 2025-11-13 03:15:24 UTC View
corruptedstack Weather (cswx) -390.757s
Before 		-22.0 dBm 6.00 dB 4 2b dmbs , DCS1 LongFast 2025-11-13 03:15:24 UTC View
🦨 corruptedstack🦨 meshtoad 🐸 (dmbp) -390.572s
Before 		-26.0 dBm 6.75 dB 4 2b dmbs LongFast 2025-11-13 03:15:24 UTC View
csbot (dmbb) -390.465s
Before 		-75.0 dBm 11.25 dB 4 2b dmbs LongFast 2025-11-13 03:15:24 UTC View
YMH 2 @ Your Mom’s House (YMH2) -388.752s
Before 		-55.0 dBm 4.75 dB 3 90 NLG1 LongFast 2025-11-13 03:15:26 UTC View
ClaremontWx.net (CmWx) -385.710s
Before 		-105.0 dBm -14.50 dB 4 f4 ⚡1 , JLO6 LongFast 2025-11-13 03:15:29 UTC View
BeMoreSQUIP 1 (VPP1) -384.561s
Before 		-111.0 dBm -7.50 dB 3 b1 LongFast 2025-11-13 03:15:30 UTC View
K2CAT/Home (K2CT) -378.929s
Before 		-109.0 dBm -0.50 dB 7 2f KCAT LongFast 2025-11-13 03:15:36 UTC View
16

Total Receptions

16

Unique Gateways