Packet #1330287

Database ID:	1330287
Mesh Packet ID:	`0x4c30ed1e` Used for correlation across gateways
Timestamp:	2026-06-30 09:34:00 UTC
From Node:	Meshtastic 3a98 (3a98)
To Node:	!f6624d5c (4d5c)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Santa-Clara-a-Nova-8 (00B1)
Channel:	LongFast
RSSI:	-117 dBm
SNR:	-15.0 dBm
Hop Info:	4/4 hops Start: 4, Limit: 0
Relay Node:	`28` Last byte of the last hop that relayed this packet

Precision:	15 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:	3 bytes
Gateway:	!4357f26c
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	4 / 4

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 3 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!4357f26c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (3 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2896837272` Source node ID	uint32
`to`	`4133637468` Target node ID	uint32
`decoded.portnum`	`POSITION_APP` POSITION_APP	enum
`decoded.payload_length`	`3` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-117.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.00` dB Signal quality at gateway	float
`rx_time`	`1782811923` 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`	`40` 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: ~729.0m accuracy

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Want ack:	`True`
Gateway ID:	`!4357f26c`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -117.0 dBm SNR: -15.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	3 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": null, "longitude": null, "altitude": null, "sats_in_view": null, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2896837272, "to": 4133637468, "channel": 8, "decoded": { "portnum": "POSITION_APP", "payload": "uAEP", "want_response": true, "bitfield": 3 }, "id": 1278274846, "rx_time": 1782811923, "rx_snr": -15.0, "want_ack": true, "rx_rssi": -117, "hop_start": 4, "relay_node": 40, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!4357f26c" }, "mesh_packet": { "from": 2896837272, "to": 4133637468, "channel": 8, "decoded": { "portnum": "POSITION_APP", "payload": "uAEP", "want_response": true, "bitfield": 3, "parsed_payload": { "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } }, "id": 1278274846, "rx_time": 1782811923, "rx_snr": -15.0, "want_ack": true, "rx_rssi": -117, "hop_start": 4, "relay_node": 40, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (3 bytes)

b8010f

Hex Analysis:

Size:	3 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 #1330287 Success

Packet Information

Payload Data

Decoded Data: