Packet #5101840 Success

POSITION_APP packet from Dimon Detskaj (00) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	5101840
Mesh Packet ID:	`0x05c5407e` Used for correlation across gateways
Timestamp:	2026-01-08 10:36:38 UTC
From Node:	Dimon Detskaj (00)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Medved GW4 (MED4)
Channel:	LongFast
RSSI:	-109 dBm
SNR:	-10.0 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0

Payload Data

Protocol: POSITION_APP

Size: 23 bytes

Decoded: Yes

Decoded Data:

Latitude:	55.947812°
Longitude:	37.832827°
Altitude:	161 m
Precision:	32 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:	23 bytes
Gateway:	!fa68e0d4
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	7 / 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`	`!fa68e0d4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (23 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3679986960` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`23` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-109.0` dBm Signal strength at gateway	int32
`rx_snr`	`-10.00` dB Signal quality at gateway	float
`rx_time`	`1767857797` 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`	`160` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1767857798.1894042` 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 (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!fa68e0d4`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -109.0 dBm SNR: -10.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	23 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 55.9478119, "longitude": 37.8328266, "altitude": 161, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!fa68e0d4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679986960, "to": 4294967295, "id": 96813182, "rx_time": 1767857797, "rx_snr": -10.0, "rx_rssi": -109, "hop_limit": 0, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 160, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d67f5582115cad48c1618a10128037800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 559478119, "longitude_i": 378328266, "altitude": 161, "location_source": "LOC_EXTERNAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (23 bytes)

0d67f5582115cad48c1618a10128037800800100b80120

Hex Analysis:

Size:	23 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
Medved GW4 (MED4) Primary	0.000s Reference	-109.0 dBm	-10.00 dB	7	LongFast	2026-01-08 10:36:38	Current
BBS Восток (DM📲) (BBSv)	-10.675s Before	-98.0 dBm	-4.75 dB	1	LongFast	2026-01-08 10:36:27	View
Korolyok h0use (K8k*)	-10.403s Before	-114.0 dBm	-5.50 dB	1	LongFast	2026-01-08 10:36:27	View
EGarpunov 2 868 (Base) (BAO) (EG28)	-4.883s Before	-116.0 dBm	-12.75 dB	3	LongFast	2026-01-08 10:36:33	View
Kedr GW4 1W (KEDR)	-3.198s Before	-118.0 dBm	-18.50 dB	6	LongFast	2026-01-08 10:36:34	View
Mashino GW4 1W (MSH4)	-3.180s Before	-113.0 dBm	-16.50 dB	6	LongFast	2026-01-08 10:36:35	View
hmbm (f55c)	-1.606s Before	-114.0 dBm	-19.00 dB	3	LongFast	2026-01-08 10:36:36	View
hmbm (f55c)	-1.379s Before	-114.0 dBm	-19.00 dB	7	LongFast	2026-01-08 10:36:36	View
Mosselmash_433 (qsfp)	-0.027s Before	-124.0 dBm	-14.25 dB	7	LongFast	2026-01-08 10:36:38	View
SYSXX BGW4 (SXB4)	+0.313s After	-105.0 dBm	-15.25 dB	7	LongFast	2026-01-08 10:36:38	View
Tsaritsyno_KB_U_868 (KBU8)	+2.164s After	-106.0 dBm	3.50 dB	3	LongFast	2026-01-08 10:36:40	View
VEGA 6d78 (VEGA)	+2.237s After	-100.0 dBm	-15.00 dB	4	LongFast	2026-01-08 10:36:40	View
Butyrskaya 868 (But8)	+2.390s After	-103.0 dBm	-1.75 dB	5	LongFast	2026-01-08 10:36:40	View
Fostral (FSTR)	+6.988s After	-77.0 dBm	-9.25 dB	5	LongFast	2026-01-08 10:36:45	View
Aster-02 (AST2)	+11.401s After	-101.0 dBm	-14.50 dB	7	LongFast	2026-01-08 10:36:49	View
Zamkad8 (zmkd)	+11.668s After	-118.0 dBm	-12.00 dB	7	LongFast	2026-01-08 10:36:49	View
Dragon868-1 (D1)	+14.128s After	-126.0 dBm	-18.50 dB	7	LongFast	2026-01-08 10:36:52	View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟)	+22.782s After	-102.0 dBm	-7.00 dB	6	LongFast	2026-01-08 10:37:00	View
Tsaritsyno_KB_U_868 (KBU8)	+606.495s After	-49.0 dBm	6.00 dB	5	LongFast	2026-01-08 10:46:44	View
Zamkad8 (zmkd)	+2479.925s After	-112.0 dBm	-7.00 dB	7	LongFast	2026-01-08 11:17:58	View

20

Total Receptions

17

Unique Gateways