Packet #5845416 Success

POSITION_APP packet from ML Home 1 (mlh1) to Sunshine (SUN)

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	5845416
Mesh Packet ID:	`0x9a40fc48` Used for correlation across gateways
Timestamp:	2026-01-14 01:58:40 UTC
From Node:	ML Home 1 (mlh1)
To Node:	Sunshine (SUN)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Keyhost GW8 (KHS8)
Channel:	LongFast
RSSI:	-112 dBm
SNR:	-8.75 dBm
Hop Info:	6/6 hops Start: 6, Limit: 0

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	55.862886°
Longitude:	37.670093°
Altitude:	150 m
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:	28 bytes
Gateway:	!fa98ccfc
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	6 / 6

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

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

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!fa98ccfc` 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`	`1770328376` Source node ID	uint32
`to`	`313538432` Target node ID	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`6` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-112.0` dBm Signal strength at gateway	int32
`rx_snr`	`-8.75` dB Signal quality at gateway	float
`rx_time`	`1768345120` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1768345120.794687` Unix timestamp	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)
✓ Targeted to specific node
✓ Gateway node ID tracked
✓ Reduced position precision: ~2900.0m accuracy

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (6 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!fa98ccfc`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -112.0 dBm SNR: -8.75 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": 55.8628864, "longitude": 37.6700928, "altitude": 150, "sats_in_view": null, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!fa98ccfc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770328376, "to": 313538432, "id": 2587950152, "rx_time": 1768345120, "rx_snr": -8.75, "rx_rssi": -112, "hop_limit": 0, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004c21150000741618960125dbcd666928017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 558628864, "longitude_i": 376700928, "altitude": 150, "time": 1768345051, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (28 bytes)

0d00004c21150000741618960125dbcd666928017800800100b8010d

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
Keyhost GW8 (KHS8) Primary	0.000s Reference	-112.0 dBm	-8.75 dB	6	LongFast	2026-01-14 01:58:40	Current
patch866 (pth8)	-49.456s Before	-67.0 dBm	3.00 dB	2	LongFast	2026-01-14 01:57:51	View
Butyrskaya 868 (But8)	-19.984s Before	-117.0 dBm	-11.75 dB	3	LongFast	2026-01-14 01:58:20	View
Butyrskaya 868 (But8)	-19.765s Before	-117.0 dBm	-11.75 dB	6	LongFast	2026-01-14 01:58:21	View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟)	-16.634s Before	-100.0 dBm	-5.50 dB	4	LongFast	2026-01-14 01:58:24	View
Zoͦmͫвⷡiͥeͤ [GW8] (🧟)	-16.293s Before	-100.0 dBm	-5.50 dB	6	LongFast	2026-01-14 01:58:24	View
Keyhost GW8 (KHS8)	-0.355s Before	-112.0 dBm	-8.75 dB	5	LongFast	2026-01-14 01:58:40	View
HOPS GW (ZER0)	+11.203s After	-108.0 dBm	-13.75 dB	6	LongFast	2026-01-14 01:58:51	View
Fostral (FSTR)	+212.982s After	-87.0 dBm	-19.75 dB	5	LongFast	2026-01-14 02:02:13	View
EGarpunov 2 868 (Base) (BAO) (EG28)	+213.779s After	-110.0 dBm	-9.00 dB	6	LongFast	2026-01-14 02:02:14	View
VEGA 6d78 (VEGA)	+276.085s After	-85.0 dBm	-10.75 dB	6	LongFast	2026-01-14 02:03:16	View
VEGA 6d78 (VEGA)	+276.653s After	-85.0 dBm	-10.75 dB	6	LongFast	2026-01-14 02:03:17	View
SYSXX YGW8 (SXY8)	+306.141s After	-100.0 dBm	-12.25 dB	3	LongFast	2026-01-14 02:03:46	View
hmbm (f55c)	+309.137s After	-97.0 dBm	3.50 dB	4	LongFast	2026-01-14 02:03:49	View
hmbm (f55c)	+309.471s After	-97.0 dBm	3.50 dB	6	LongFast	2026-01-14 02:03:50	View
SYSXX OGW8 (SXG8)	+310.807s After	-52.0 dBm	6.00 dB	4	LongFast	2026-01-14 02:03:51	View
SYSXX BGW8 (SXB8)	+310.839s After	-4.0 dBm	6.25 dB	4	LongFast	2026-01-14 02:03:51	View
Korolyok h0use (K8k*)	+310.873s After	-128.0 dBm	-19.25 dB	6	LongFast	2026-01-14 02:03:51	View
Aster-02 (AST2)	+311.074s After	-62.0 dBm	5.75 dB	4	LongFast	2026-01-14 02:03:51	View
RN3ABX Georgy 2 (ABX2)	+312.657s After	-100.0 dBm	1.00 dB	5	LongFast	2026-01-14 02:03:53	View
Aster-02 (AST2)	+313.455s After	-62.0 dBm	5.75 dB	6	LongFast	2026-01-14 02:03:54	View
Zamkad8 (zmkd)	+642.487s After	-108.0 dBm	0.75 dB	6	LongFast	2026-01-14 02:09:23	View
Zamkad8 (zmkd)	+642.772s After	-108.0 dBm	0.75 dB	6	LongFast	2026-01-14 02:09:23	View

23

Total Receptions

16

Unique Gateways