Packet #39452107 Success

POSITION_APP packet from Seri Base d120 (SRB) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	39452107
Mesh Packet ID:	`0x92b9aebd` Used for correlation across gateways
Timestamp:	2026-05-16 05:39:48 UTC
From Node:	Seri Base d120 (SRB)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Seri Base d120 (SRB)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`20` SRB 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: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	43.417600°
Longitude:	-80.537190°
Altitude:	340 m
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:	28 bytes
Gateway:	!16ced120
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!16ced120` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`382652704` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`7` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1778909988` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`32` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1778909988.5631456` 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: ~729.0m accuracy
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!16ced120`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	28 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 43.4176, "longitude": -80.5371904, "altitude": 340, "sats_in_view": null, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!16ced120", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 382652704, "to": 4294967295, "id": 2461642429, "rx_time": 1778909988, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 32, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000e119150000ffcf18d402252403086a28017800800100b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 434176000, "longitude_i": -805371904, "altitude": 340, "time": 1778909988, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d0000e119150000ffcf18d402252403086a28017800800100b8010f

Hex Analysis:

Size:	28 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
Seri Base d120 (SRB) Primary	0.000s Reference	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	Current
Seri Base d120 (SRB)	+0.025s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.037s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.049s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.061s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.071s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.082s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.093s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.103s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.114s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.125s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.136s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.147s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.163s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.175s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.187s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.200s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.211s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.223s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.235s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.246s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.257s After	Unknown	Unknown	0	`20` SRB	MediumFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.268s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.279s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.290s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.301s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.314s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.325s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.336s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.349s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.362s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.375s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.387s After	Unknown	Unknown	0	`20` SRB	ShortFast	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.399s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.411s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.424s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.436s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:48 UTC	View
Seri Base d120 (SRB)	+0.446s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.458s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.469s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.480s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.491s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.502s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.513s After	Unknown	Unknown	0	`20` SRB	ShortTurbo	2026-05-16 05:39:49 UTC	View
Seri Base d120 (SRB)	+0.524s After	Unknown	Unknown	0	`20` SRB	LongFast	2026-05-16 05:39:49 UTC	View
Eco-Monkey LLP (mnky)	+1.094s After	-100.0 dBm	-12.75 dB	0	`20` SRB	LongFast	2026-05-16 05:39:49 UTC	View
VE3WNP-12 (WNP)	+2.509s After	-74.0 dBm	5.50 dB	1	`68` WNPr	LongFast	2026-05-16 05:39:51 UTC	View
neoSG2 https://canadaverse.org/ (🎐)	+22.443s After	-93.0 dBm	-2.00 dB	2	`5b`	LongFast	2026-05-16 05:40:11 UTC	View
Meshtastic 7c50 (7c50)	+22.824s After	-120.0 dBm	-12.75 dB	2	`5b`	LongFast	2026-05-16 05:40:11 UTC	View

49

Total Receptions

5

Unique Gateways