Packet #1891768 Success

POSITION_APP packet from !b1b7dfe8 to !ffffffff

17
Total Receptions
17
Unique Gateways
2
Hop Count
27
Payload Bytes
Packet Information
Database ID: 1891768
Mesh Packet ID: 0x7e6b9653
Used for correlation across gateways
Timestamp: 2025-11-11 15:16:25 UTC
From Node: !b1b7dfe8 (dfe8)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic b808 (b808)
Channel: LongFast
RSSI: -84 dBm
SNR: 5.5 dBm
Hop Info: 2/6 hops
Start: 6, Limit: 4
Relay Node: d5 ETNA
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: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:40.740299°
Longitude:-73.848448°
Precision:32 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:27 bytes
Gateway:!db51b808
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 6
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 4 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !db51b808
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (27 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2981617640
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 27 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 6
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -84.0 dBm
Signal strength at gateway 		int32
rx_snr 5.50 dB
Signal quality at gateway 		float
rx_time 1762873900
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 213
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1762874185.8455913
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
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Full GPS precision shared
  • ⚠ Multi-hop path visible (2 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !db51b808
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -84.0 dBm
SNR: 5.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:27 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7402985, "longitude": -73.8484484, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51b808", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2981617640, "to": 4294967295, "id": 2120980051, "rx_time": 1762873900, "rx_snr": 5.5, "rx_rssi": -84, "hop_limit": 4, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 213, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0de979481815fc9efbd31800257318136928017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407402985, "longitude_i": -738484484, "altitude": 0, "time": 1762859123, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (27 bytes)
0de979481815fc9efbd31800257318136928017800800100b80120
Hex Analysis:
Size:27 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 b808 (b808) Primary 0.000s
Reference 		-84.0 dBm 5.50 dB 2 d5 ETNA LongFast 2025-11-11 15:16:25 UTC Current
Lv4 - Heltec V4 Green (Lv4) -713.208s
Before 		-15.0 dBm 6.00 dB 0 e8 dfe8 LongFast 2025-11-11 15:04:32 UTC View
aurelia (🧚) -361.069s
Before 		-112.0 dBm -4.75 dB 2 d5 ETNA LongFast 2025-11-11 15:10:24 UTC View
dkTowerBot (dkTB) -359.719s
Before 		-98.0 dBm -10.75 dB 3 4c JLY3 , SST LongFast 2025-11-11 15:10:26 UTC View
K2YYD MQTT Gateway 0b0b (MBMQ) -357.972s
Before 		-50.0 dBm 6.50 dB 3 2b MB01 LongFast 2025-11-11 15:10:27 UTC View
Steiner Studios Tower (SST) -356.946s
Before 		-118.0 dBm -12.00 dB 3 1e 351e LongFast 2025-11-11 15:10:28 UTC View
Meshtastic e41a (GRBT) -356.768s
Before 		-122.0 dBm -16.00 dB 3 1e GHFC LongFast 2025-11-11 15:10:29 UTC View
YMH 2 @ Your Mom’s House (YMH2) -348.146s
Before 		-69.0 dBm -7.50 dB 4 90 NLG1 LongFast 2025-11-11 15:10:37 UTC View
BeMoreSQUIP 1 (VPP1) -347.852s
Before 		-82.0 dBm 6.00 dB 5 09 LongFast 2025-11-11 15:10:37 UTC View
nLink-NY-Jamaica1 (NLJ1) -347.564s
Before 		-98.0 dBm -8.75 dB 2 d5 ETNA LongFast 2025-11-11 15:10:38 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -344.611s
Before 		-111.0 dBm -8.75 dB 3 30 ed30 , 3930 LongFast 2025-11-11 15:10:41 UTC View
Fried Fish 1 | nyme.sh (FF1) -335.037s
Before 		-84.0 dBm -14.25 dB 6 40 BRRN LongFast 2025-11-11 15:10:50 UTC View
K2CAT/Home (K2CT) -328.908s
Before 		-108.0 dBm 1.00 dB 6 2f KCAT LongFast 2025-11-11 15:10:56 UTC View
bit0fun | nyme.sh (🟠) -300.193s
Before 		-111.0 dBm -15.50 dB 4 81 9881 , Titi LongFast 2025-11-11 15:11:25 UTC View
ClaremontWx.net (CmWx) -298.083s
Before 		-90.0 dBm -7.00 dB 5 - LongFast 2025-11-11 15:11:27 UTC View
Meshtastic 631c (631c) -296.221s
Before 		-109.0 dBm -19.25 dB 5 2d 🪟 LongFast 2025-11-11 15:11:29 UTC View
K2XAP / nyme.sh (XAP) +175.398s
After 		-36.0 dBm 6.00 dB 6 57 CmWx LongFast 2025-11-11 15:19:21 UTC View
17

Total Receptions

17

Unique Gateways