Packet #1225013

Database ID:	1225013
Mesh Packet ID:	`0x741d2eba` Used for correlation across gateways
Timestamp:	2026-06-23 22:43:19 UTC
From Node:	Xip-Rak-GT-8🇵🇹 (Xip~)
To Node:	!b2a791f0 (91f0)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Xip-Card-8🇵🇹 (XipC)
Channel:	LongFast
RSSI:	-81 dBm
SNR:	7.5 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`85` Xip~ Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Latitude:	37.067162°
Longitude:	-7.916749°
Altitude:	23 m
Precision:	12 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:	!1a24d652
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	0 / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 4 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!1a24d652` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (27 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3132739717` Source node ID	uint32
`to`	`2997326320` Target node ID	uint32
`decoded.portnum`	`POSITION_APP` POSITION_APP	enum
`decoded.payload_length`	`27` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-81.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.50` dB Signal quality at gateway	float
`rx_time`	`1782254599` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	True Acknowledgment requested	bool
`priority`	Not set	enum
`delayed`	Not set	enum
`channel`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`133` 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: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
✓ Targeted to specific node
✓ Gateway node ID tracked
✓ Reduced position precision: ~5800.0m accuracy
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Want ack:	`True`
Gateway ID:	`!1a24d652`
Position Precision:	12 bits (~5800.0m accuracy)
Position precision meters:	`5800.0`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -81.0 dBm SNR: 7.50 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": 37.0671616, "longitude": -7.9167488, "altitude": 23, "sats_in_view": null, "precision_bits": 12 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 3132739717, "to": 2997326320, "channel": 8, "decoded": { "portnum": "POSITION_APP", "payload": "DQAAGBYVAABI+xgXJfULO2ooAXgAgAEAuAEM", "request_id": 816654706, "bitfield": 1 }, "id": 1948069562, "rx_time": 1782254599, "rx_snr": 7.5, "hop_limit": 3, "want_ack": true, "rx_rssi": -81, "hop_start": 3, "relay_node": 133, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!1a24d652" }, "mesh_packet": { "from": 3132739717, "to": 2997326320, "channel": 8, "decoded": { "portnum": "POSITION_APP", "payload": "DQAAGBYVAABI+xgXJfULO2ooAXgAgAEAuAEM", "request_id": 816654706, "bitfield": 1, "parsed_payload": { "latitude_i": 370671616, "longitude_i": -79167488, "altitude": 23, "time": 1782254581, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 12, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } }, "id": 1948069562, "rx_time": 1782254599, "rx_snr": 7.5, "hop_limit": 3, "want_ack": true, "rx_rssi": -81, "hop_start": 3, "relay_node": 133, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (27 bytes)

0d0000181615000048fb181725f50b3b6a28017800800100b8010c

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.

Packet #1225013 Success

Packet Information

Payload Data

Decoded Data: