Packet #1923994 Success

POSITION_APP packet from Catalpa (Clpa) to !ffffffff

14
Total Receptions
14
Unique Gateways
2
Hop Count
22
Payload Bytes
Packet Information
Database ID: 1923994
Mesh Packet ID: 0x81d77baa
Used for correlation across gateways
Timestamp: 2025-11-12 01:49:02 UTC
From Node: Catalpa (Clpa)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Meshtastic b808 (b808)
Channel: LongFast
RSSI: -95 dBm
SNR: 3.75 dBm
Hop Info: 2/3 hops
Start: 3, Limit: 1
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: 22 bytes
Decoded: Yes
Decoded Data:
Latitude:40.692941°
Longitude:-73.939354°
Altitude:22 m
Precision:17 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:22 bytes
Gateway:!db51b808
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:2 / 3
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 (22 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4187773462
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 22 bytes size
hop_limit 1
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -95.0 dBm
Signal strength at gateway 		int32
rx_snr 3.75 dB
Signal quality at gateway 		float
rx_time 1762911643
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 1762912142.4031303
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: 17 bits (~182.0m accuracy)
Position precision meters: 182.0
Signal Metrics: RSSI: -95.0 dBm
SNR: 3.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:22 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.6929408, "longitude": -73.9393536, "altitude": 22, "sats_in_view": null, "precision_bits": 17 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db51b808", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4187773462, "to": 4294967295, "id": 2178382762, "rx_time": 1762911643, "rx_snr": 3.75, "rx_rssi": -95, "hop_limit": 1, "hop_start": 3, "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": "0d004041181500c0edd3181628017800800100b80111", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 406929408, "longitude_i": -739393536, "altitude": 22, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 17, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d004041181500c0edd3181628017800800100b80111
Hex Analysis:
Size:22 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 		-95.0 dBm 3.75 dB 2 d5 ETNA LongFast 2025-11-12 01:49:02 UTC Current
dkTowerBot (dkTB) -600.926s
Before 		-102.0 dBm -11.50 dB 1 7b 4b7b LongFast 2025-11-12 01:39:01 UTC View
Steiner Studios Tower (SST) -600.913s
Before 		-117.0 dBm -10.75 dB 1 7b 4b7b LongFast 2025-11-12 01:39:01 UTC View
aurelia (🧚) -599.883s
Before 		-107.0 dBm -0.25 dB 1 7b 4b7b LongFast 2025-11-12 01:39:02 UTC View
P1geon (PGN1) -599.379s
Before 		-30.0 dBm 6.00 dB 2 1c PGN0 LongFast 2025-11-12 01:39:03 UTC View
!ebb328a2 (28a2) -596.437s
Before 		-94.0 dBm -13.75 dB 2 c9 Penn LongFast 2025-11-12 01:39:05 UTC View
ClaremontWx.net (CmWx) -596.410s
Before 		-78.0 dBm 4.50 dB 2 c9 Penn LongFast 2025-11-12 01:39:05 UTC View
DRP1 Chelsea (DRP1) -596.063s
Before 		-79.0 dBm 6.00 dB 2 c9 Penn , JLX3 LongFast 2025-11-12 01:39:06 UTC View
CBZ0 🚕 mobile (CBZ0) -595.903s
Before 		-115.0 dBm -9.00 dB 2 c9 Penn , JLX3 LongFast 2025-11-12 01:39:06 UTC View
K2XAP / nyme.sh (XAP) -595.885s
Before 		-122.0 dBm -11.50 dB 2 c9 Penn , JLX3 LongFast 2025-11-12 01:39:06 UTC View
1 MW 1 West Side | https://nyme.sh (1MW1) -595.613s
Before 		-97.0 dBm 3.50 dB 2 c9 Penn LongFast 2025-11-12 01:39:06 UTC View
Lv4 - Heltec V4 Green (Lv4) -552.552s
Before 		-85.0 dBm -15.25 dB 2 d5 ETNA , 🟠 LongFast 2025-11-12 01:39:49 UTC View
K2YYD MQTT Gateway 0b0b (MBMQ) -551.475s
Before 		-51.0 dBm 5.50 dB 3 2b MB01 LongFast 2025-11-12 01:39:50 UTC View
KE2EHU-2 (🦖) +326.056s
After 		-106.0 dBm -4.25 dB 1 7b 4b7b LongFast 2025-11-12 01:54:28 UTC View
14

Total Receptions

14

Unique Gateways