Packet #2685441 Success

POSITION_APP packet from PA3JH 🗼 (2.7.3) (3JH2) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	2685441
Mesh Packet ID:	`0xba222b45` Used for correlation across gateways
Timestamp:	2025-08-16 13:15:12 UTC
From Node:	PA3JH 🗼 (2.7.3) (3JH2)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	HolRad (HlRd)
Channel:	LongFast
RSSI:	-125 dBm
SNR:	-15.5 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3

Payload Data

Protocol: POSITION_APP

Size: 27 bytes

Decoded: Yes

Decoded Data:

Latitude:	51.443611°
Longitude:	5.471520°
Altitude:	12 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:	27 bytes
Gateway:	!fa67186c
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 5

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`	`!fa67186c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (27 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`862420264` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`27` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-125.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.50` dB Signal quality at gateway	float
`rx_time`	`1755342911` 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`	`1755342912.9129503` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!fa67186c`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -125.0 dBm SNR: -15.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	27 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 51.4436114, "longitude": 5.4715205, "altitude": 12, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!fa67186c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862420264, "to": 4294967295, "id": 3122801477, "rx_time": 1755342911, "rx_snr": -15.5, "rx_rssi": -125, "hop_limit": 3, "hop_start": 5, "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": "0d12aca91e1545e34203180c254d67a06828017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 514436114, "longitude_i": 54715205, "altitude": 12, "time": 1755342669, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (27 bytes)

0d12aca91e1545e34203180c254d67a06828017800800100b80120

Hex Analysis:

Size:	27 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
HolRad (HlRd) Primary	0.000s Reference	-125.0 dBm	-15.50 dB	2	LongFast	2025-08-16 13:15:12	Current
PA3JH 🗼 (2.7.3) (3JH2)	-240.855s Before	Unknown	Unknown	0	LongFast	2025-08-16 13:11:12	View
PA3JH 🏠 (2.7.5) (3JH1)	-236.529s Before	-114.0 dBm	-18.00 dB	0	LongFast	2025-08-16 13:11:16	View
Daniela VHV (dnla)	-235.270s Before	-101.0 dBm	4.50 dB	1	LongFast	2025-08-16 13:11:17	View
Meshtastic f61e (f61e)	-0.525s Before	-122.0 dBm	-19.25 dB	2	LongFast	2025-08-16 13:15:12	View
Meshtastic gf30c (gf3c)	-0.390s Before	-122.0 dBm	-1.75 dB	2	LongFast	2025-08-16 13:15:12	View
Afrithon (afrt)	-0.375s Before	-94.0 dBm	3.00 dB	2	LongFast	2025-08-16 13:15:12	View
Soesterduinen🔌 🌐 🛰️ (🌲)	-0.356s Before	-118.0 dBm	-9.75 dB	2	LongFast	2025-08-16 13:15:12	View
Meshtastic 7c28 (7c28)	-0.205s Before	-126.0 dBm	-10.75 dB	2	LongFast	2025-08-16 13:15:12	View
Meshbase (Mshb)	-0.149s Before	-126.0 dBm	-16.25 dB	2	LongFast	2025-08-16 13:15:12	View
dJoris 📡🏠🌐 StaRF (j8bc)	-0.139s Before	-120.0 dBm	-15.00 dB	2	LongFast	2025-08-16 13:15:12	View
MT Node Pey (PEY)	-0.117s Before	-114.0 dBm	-9.00 dB	2	LongFast	2025-08-16 13:15:12	View
Hatate (GSK0)	-0.102s Before	-107.0 dBm	-8.00 dB	2	LongFast	2025-08-16 13:15:12	View
Joozt - Rijen 🏠 (JZT)	-0.079s Before	-113.0 dBm	-3.75 dB	2	LongFast	2025-08-16 13:15:12	View
SimbaNova (8139)	-0.066s Before	-113.0 dBm	-2.50 dB	2	LongFast	2025-08-16 13:15:12	View
RJ_Rook_1 (RJR1)	-0.055s Before	-128.0 dBm	-16.50 dB	2	LongFast	2025-08-16 13:15:12	View
QLMeshBase - Apeldoorn (QLMB)	-0.042s Before	-128.0 dBm	-18.25 dB	2	LongFast	2025-08-16 13:15:12	View
Meshtastic 4e50 (4e50)	-0.031s Before	-123.0 dBm	-12.00 dB	2	LongFast	2025-08-16 13:15:12	View
Chopin (Chpn)	-0.015s Before	-144.0 dBm	-20.00 dB	2	LongFast	2025-08-16 13:15:12	View
Kiep (KIEP)	+1.000s After	-127.0 dBm	-17.50 dB	-2	LongFast	2025-08-16 13:15:13	View
NL-3534-Schepenbuurt🏠🔌🌐 (3534)	+1.207s After	-99.0 dBm	5.25 dB	3	LongFast	2025-08-16 13:15:14	View
bertrik@gmail.com (HvLn)	+1.363s After	-126.0 dBm	-16.50 dB	3	LongFast	2025-08-16 13:15:14	View
RSD Langdonk01 🌐 (RL01)	+1.499s After	-50.0 dBm	6.50 dB	3	LongFast	2025-08-16 13:15:14	View
NL-3545-Knalliebar (KNB0)	+1.635s After	-128.0 dBm	-19.00 dB	3	LongFast	2025-08-16 13:15:14	View
PD0WES-Louis-3543 (PL43)	+1.644s After	-96.0 dBm	-8.50 dB	3	LongFast	2025-08-16 13:15:14	View
MJ T-Beam (MJee)	+1.659s After	-118.0 dBm	1.50 dB	3	LongFast	2025-08-16 13:15:14	View
PT \| T-Deck 2 (PTD2)	+2.309s After	-44.0 dBm	6.00 dB	4	LongFast	2025-08-16 13:15:15	View
Colossus 1 (ccw1)	+3.441s After	-125.0 dBm	-16.00 dB	4	LongFast	2025-08-16 13:15:16	View
Hillywood Oost (HOOS)	+4.201s After	-124.0 dBm	-16.00 dB	4	LongFast	2025-08-16 13:15:17	View
HLM Raaks Base 🏡🛜 (HLR1)	+4.335s After	-120.0 dBm	-13.00 dB	5	LongFast	2025-08-16 13:15:17	View
Wateringweg, Haarlem (WaHa)	+5.474s After	-91.0 dBm	5.25 dB	5	LongFast	2025-08-16 13:15:18	View
Hendrik ido ambacht 3 (Hia3)	+5.608s After	-130.0 dBm	-8.00 dB	4	LongFast	2025-08-16 13:15:18	View
Ulftastic Fixed 1 (UTF1)	+515.063s After	-113.0 dBm	-3.50 dB	2	LongFast	2025-08-16 13:23:47	View

33

Total Receptions

33

Unique Gateways