Packet #70271

Database ID:	70271
Mesh Packet ID:	`0x2e66f8dd` Used for correlation across gateways
Timestamp:	2026-04-11 23:31:31 UTC
From Node:	Meshtastic e298 (e298)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	wi3w-base (w00b)
Channel:	LongFast
RSSI:	-107 dBm
SNR:	-13.0 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5
Relay Node:	`e0` f6e0 , 2ee0 , 53e0 , KFOG , IRON , 3ae0 , 6de0 , SVMI , mCit , CVWH Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Latitude:	40.396390°
Longitude:	-75.995546°
Altitude:	178 m
Satellites:	12
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:	31 bytes
Gateway:	!24da43f9
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 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

Field	Value
`gateway_id`	`!24da43f9` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (31 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`49078936` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`POSITION_APP` POSITION_APP	enum
`decoded.payload_length`	`31` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-13.00` dB Signal quality at gateway	float
`rx_time`	`1775950290` 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`	`224` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!24da43f9`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -107.0 dBm SNR: -13.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	31 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 40.3963904, "longitude": -75.9955456, "altitude": 178, "sats_in_view": 12, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 49078936, "to": 4294967295, "decoded": { "portnum": "POSITION_APP", "payload": "DQAAFBgVAAC00hiyASXN2dppKAN4AIABAJgBDLgBDQ==", "bitfield": 0 }, "id": 778500317, "rx_time": 1775950290, "rx_snr": -13.0, "hop_limit": 5, "rx_rssi": -107, "hop_start": 7, "relay_node": 224, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!24da43f9" }, "mesh_packet": { "from": 49078936, "to": 4294967295, "decoded": { "portnum": "POSITION_APP", "payload": "DQAAFBgVAAC00hiyASXN2dppKAN4AIABAJgBDLgBDQ==", "bitfield": 0, "parsed_payload": { "latitude_i": 403963904, "longitude_i": -759955456, "altitude": 178, "time": 1775950285, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "sats_in_view": 12, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } }, "id": 778500317, "rx_time": 1775950290, "rx_snr": -13.0, "hop_limit": 5, "rx_rssi": -107, "hop_start": 7, "relay_node": 224, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (31 bytes)

0d00001418150000b4d218b20125cdd9da692803780080010098010cb8010d

Hex Analysis:

Size:	31 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.

Packet #70271 Success

Packet Information

Payload Data

Decoded Data: