Packet #1982360 Success

POSITION_APP packet from Meshtastic b808 (b808) to !ffffffff

12
Total Receptions
12
Unique Gateways
3
Hop Count
17
Payload Bytes
Packet Information
Database ID: 1982360
Mesh Packet ID: 0xfcd4e5ef
Used for correlation across gateways
Timestamp: 2025-11-13 00:26:36 UTC
From Node: Meshtastic b808 (b808)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: YMH 2 @ Your Mom’s House (YMH2)
Channel: LongFast
RSSI: -58 dBm
SNR: -0.25 dBm
Hop Info: 3/7 hops
Start: 7, Limit: 4
Relay Node: 90 NLG1
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:!b2a6fda8
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:3 / 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 !b2a6fda8
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 4
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -58.0 dBm
Signal strength at gateway 		int32
rx_snr -0.25 dB
Signal quality at gateway 		float
rx_time 1762993675
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 144
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1762993596.5385003
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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b2a6fda8
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -58.0 dBm
SNR: -0.25 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": "!b2a6fda8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679565832, "to": 4294967295, "id": 4241810927, "rx_time": 1762993675, "rx_snr": -0.25, "rx_rssi": -58, "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": 144, "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
YMH 2 @ Your Mom’s House (YMH2) Primary 0.000s
Reference 		-58.0 dBm -0.25 dB 3 90 NLG1 LongFast 2025-11-13 00:26:36 UTC Current
Lv4 - Heltec V4 Green (Lv4) -1.795s
Before 		-89.0 dBm -19.25 dB 1 d5 ETNA , 🟠 LongFast 2025-11-13 00:26:34 UTC View
ClaremontWx.net (CmWx) -1.529s
Before 		-79.0 dBm 5.00 dB 2 c9 Penn LongFast 2025-11-13 00:26:35 UTC View
aurelia (🧚) -1.358s
Before 		-114.0 dBm -8.25 dB 1 d5 ETNA LongFast 2025-11-13 00:26:35 UTC View
DRP1 Chelsea (DRP1) -1.162s
Before 		-77.0 dBm 5.50 dB 2 c9 Penn , JLX3 LongFast 2025-11-13 00:26:35 UTC View
K2XAP / nyme.sh (XAP) -1.056s
Before 		-128.0 dBm -20.25 dB 2 c9 Penn , JLX3 LongFast 2025-11-13 00:26:35 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -0.805s
Before 		-98.0 dBm 0.25 dB 2 c9 Penn LongFast 2025-11-13 00:26:35 UTC View
K2YYD MQTT Gateway 0b0b (MBMQ) +0.620s
After 		-55.0 dBm 5.00 dB 3 9c 599c , 0a9c LongFast 2025-11-13 00:26:37 UTC View
Gowanus Soda (p1p) +4.461s
After 		-125.0 dBm -19.25 dB 2 60 LongFast 2025-11-13 00:26:40 UTC View
Meshtastic 631c (631c) +4.495s
After 		-110.0 dBm -19.25 dB 2 60 LongFast 2025-11-13 00:26:41 UTC View
🐎📨 mobile (📨) +4.611s
After 		-119.0 dBm -9.25 dB 2 60 p@bp LongFast 2025-11-13 00:26:41 UTC View
Cams Rak4631 (CARA) +5.999s
After 		-115.0 dBm -5.25 dB 6 74 ec74 LongFast 2025-11-13 00:26:42 UTC View
12

Total Receptions

12

Unique Gateways