Packet #6338376 Success

POSITION_APP packet from Meshtastic 1d70 (1d70) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	6338376
Mesh Packet ID:	`0xcb8edf62` Used for correlation across gateways
Timestamp:	2026-01-18 03:20:01 UTC
From Node:	Meshtastic 1d70 (1d70)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Tsaritsyno_KB_U_868 (KBU8)
Channel:	LongFast
RSSI:	-116 dBm
SNR:	-6.75 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5

Payload Data

Protocol: POSITION_APP

Size: 37 bytes

Decoded: Yes

Decoded Data:

Latitude:	55.758029°
Longitude:	37.827379°
Altitude:	159 m
Satellites:	4
Precision:	13 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:	37 bytes
Gateway:	!db2964b0
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!db2964b0` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (37 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1771838832` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`37` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-116.0` dBm Signal strength at gateway	int32
`rx_snr`	`-6.75` dB Signal quality at gateway	float
`rx_time`	`1768695600` 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`	`12` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1768695601.6298912` 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: ~2900.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!db2964b0`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -116.0 dBm SNR: -6.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	37 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 55.7580288, "longitude": 37.8273792, "altitude": 159, "sats_in_view": 4, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!db2964b0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1771838832, "to": 4294967295, "id": 3415138146, "rx_time": 1768695600, "rx_snr": -6.75, "rx_rssi": -116, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 12, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00003c211500008c16189f012525276c69280258cb0878008001c0d89803980104b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 557580288, "longitude_i": 378273792, "altitude": 159, "time": 1768695589, "location_source": "LOC_INTERNAL", "PDOP": 1099, "ground_speed": 0, "ground_track": 6696000, "sats_in_view": 4, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (37 bytes)

0d00003c211500008c16189f012525276c69280258cb0878008001c0d89803980104b8010d

Hex Analysis:

Size:	37 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
Tsaritsyno_KB_U_868 (KBU8) Primary	0.000s Reference	-116.0 dBm	-6.75 dB	2	LongFast	2026-01-18 03:20:01	Current
EGarpunov 2 868 (Base) (BAO) (EG28)	-2.456s Before	-107.0 dBm	-6.00 dB	0	LongFast	2026-01-18 03:19:59	View
Fostral (FSTR)	-2.442s Before	-82.0 dBm	-14.75 dB	0	LongFast	2026-01-18 03:19:59	View
BBS Восток (DM📲) (BBSv)	-1.494s Before	-47.0 dBm	6.25 dB	1	LongFast	2026-01-18 03:20:00	View
patch866 (pth8)	-0.232s Before	-69.0 dBm	3.75 dB	1	LongFast	2026-01-18 03:20:01	View
VEGA 6d78 (VEGA)	-0.162s Before	-95.0 dBm	-17.00 dB	2	LongFast	2026-01-18 03:20:01	View
Butyrskaya 868 (But8)	+1.243s After	-103.0 dBm	-3.00 dB	2	LongFast	2026-01-18 03:20:02	View
dmt-ozeretskoe-mechta/868/LF2 (OZM8)	+2.160s After	-110.0 dBm	-12.50 dB	3	LongFast	2026-01-18 03:20:03	View
Korolyok h0use (K8k*)	+2.315s After	-114.0 dBm	-2.50 dB	3	LongFast	2026-01-18 03:20:03	View
Aster-02 (AST2)	+2.946s After	-98.0 dBm	-14.50 dB	3	LongFast	2026-01-18 03:20:04	View
hmbm (f55c)	+5.926s After	-95.0 dBm	3.75 dB	3	LongFast	2026-01-18 03:20:07	View
ZA_MKAD_22_868_1 (8681)	+9.115s After	-135.0 dBm	-11.75 dB	4	LongFast	2026-01-18 03:20:10	View
NODE_SOLAR_868 (8682)	+9.306s After	Unknown	Unknown	5	LongFast	2026-01-18 03:20:10	View
SYSXX OGW8 (SXG8)	+10.385s After	-68.0 dBm	6.00 dB	4	LongFast	2026-01-18 03:20:12	View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟)	+14.863s After	-106.0 dBm	-10.00 dB	3	LongFast	2026-01-18 03:20:16	View
SYSXX BGW8 (SXB8)	+17.742s After	-68.0 dBm	6.25 dB	5	LongFast	2026-01-18 03:20:19	View
SYSXX YGW8 (SXY8)	+28.033s After	Unknown	6.00 dB	6	LongFast	2026-01-18 03:20:29	View
RN3ABX Georgy 2 (ABX2)	+32.544s After	-113.0 dBm	-6.75 dB	5	LongFast	2026-01-18 03:20:34	View
Zamkad8 (zmkd)	+55.668s After	-125.0 dBm	-13.00 dB	6	LongFast	2026-01-18 03:20:57	View

19

Total Receptions

19

Unique Gateways