Packet #9856001 Success

POSITION_APP packet from GRP1-CL-868-d959 (GRP1) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	9856001
Mesh Packet ID:	`0x8dbf19be` Used for correlation across gateways
Timestamp:	2025-09-09 19:02:35 UTC
From Node:	GRP1-CL-868-d959 (GRP1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	bocchi-pocket (de10)
Channel:	LongFast
RSSI:	-125 dBm
SNR:	-15.75 dBm
Hop Info:	4/7 hops Start: 7, Limit: 3

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	41.684173°
Longitude:	-1.019085°
Altitude:	234 m
Precision:	16 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:	!9c53de10
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	4 / 7

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

Field	Value
`gateway_id`	`!9c53de10` 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`	`2655246681` 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`	`3` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-125.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.75` dB Signal quality at gateway	float
`rx_time`	`1757443705` 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`	`216` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757444555.9445546` 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 (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9c53de10`
Position Precision:	16 bits (~364.0m accuracy)
Position precision meters:	`364.0`
Signal Metrics:	RSSI: -125.0 dBm SNR: -15.75 dB

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": 41.6841728, "longitude": -1.0190848, "altitude": 234, "sats_in_view": null, "precision_bits": 16 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9c53de10", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2655246681, "to": 4294967295, "id": 2378111422, "rx_time": 1757443705, "rx_snr": -15.75, "rx_rssi": -125, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 216, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0080d81815008064ff18ea0125d574c06828017800800100b80110", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 416841728, "longitude_i": -10190848, "altitude": 234, "time": 1757443285, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 16, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d0080d81815008064ff18ea0125d574c06828017800800100b80110

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	Channel	Timestamp	Actions
bocchi-pocket (de10) Primary	0.000s Reference	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:35	Current
bocchi-pocket (de10)	-434.567s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:55:21	View
bocchi-pocket (de10)	-404.524s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:55:51	View
bocchi-pocket (de10)	-349.472s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:56:46	View
bocchi-pocket (de10)	-319.434s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:57:16	View
bocchi-pocket (de10)	-289.408s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:57:46	View
bocchi-pocket (de10)	-264.382s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:58:11	View
bocchi-pocket (de10)	-239.352s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:58:36	View
bocchi-pocket (de10)	-209.330s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:59:06	View
bocchi-pocket (de10)	-179.301s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 18:59:36	View
bocchi-pocket (de10)	-149.266s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:00:06	View
bocchi-pocket (de10)	-124.216s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:00:31	View
bocchi-pocket (de10)	-104.166s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:00:51	View
bocchi-pocket (de10)	-83.124s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:01:12	View
bocchi-pocket (de10)	-62.083s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:01:33	View
bocchi-pocket (de10)	-51.061s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:01:44	View
bocchi-pocket (de10)	-40.047s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:01:55	View
bocchi-pocket (de10)	-28.044s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:07	View
bocchi-pocket (de10)	-26.045s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:09	View
bocchi-pocket (de10)	-24.042s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:11	View
bocchi-pocket (de10)	-22.038s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:13	View
bocchi-pocket (de10)	-20.031s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:15	View
bocchi-pocket (de10)	-18.030s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:17	View
bocchi-pocket (de10)	-15.024s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:20	View
bocchi-pocket (de10)	-13.022s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:22	View
bocchi-pocket (de10)	-11.020s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:24	View
bocchi-pocket (de10)	-9.019s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:26	View
bocchi-pocket (de10)	-7.010s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:28	View
bocchi-pocket (de10)	-5.009s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:30	View
bocchi-pocket (de10)	-2.999s Before	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:32	View
bocchi-pocket (de10)	+2.004s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:37	View
bocchi-pocket (de10)	+4.013s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:39	View
bocchi-pocket (de10)	+6.017s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:41	View
bocchi-pocket (de10)	+8.019s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:43	View
bocchi-pocket (de10)	+10.024s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:45	View
bocchi-pocket (de10)	+13.027s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:48	View
bocchi-pocket (de10)	+15.029s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:50	View
bocchi-pocket (de10)	+17.031s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:52	View
bocchi-pocket (de10)	+19.034s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:54	View
bocchi-pocket (de10)	+21.036s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:56	View
bocchi-pocket (de10)	+23.037s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:02:58	View
bocchi-pocket (de10)	+25.040s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:03:00	View
bocchi-pocket (de10)	+26.045s After	-125.0 dBm	-15.75 dB	4	LongFast	2025-09-09 19:03:01	View

43

Total Receptions

1

Unique Gateways