Packet #2337399 Success

POSITION_APP packet from PA3JH 🏠 (2.7.5) (3JH1) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	2337399
Mesh Packet ID:	`0x1d7d0a7f` Used for correlation across gateways
Timestamp:	2025-08-14 01:19:36 UTC
From Node:	PA3JH 🏠 (2.7.5) (3JH1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	PD0WES-Louis-3543 (PL43)
Channel:	LongFast
RSSI:	-90 dBm
SNR:	Unknown
Hop Info:	2/5 hops Start: 5, Limit: 3

Payload Data

Protocol: POSITION_APP

Size: 27 bytes

Decoded: Yes

Decoded Data:

Latitude:	51.461447°
Longitude:	5.464762°
Altitude:	9 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:	!7c5b0278
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`	`!7c5b0278` 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`	`2733250968` 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`	`-90.0` dBm Signal strength at gateway	int32
`rx_snr`	Not set	float
`rx_time`	`1755127173` 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`	`208` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755127176.0081525` 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:	`!7c5b0278`
Position Precision:	32 bits (~1.0m accuracy)
Position precision meters:	`1.0`
Signal Metrics:	RSSI: -90.0 dBm

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": 51.461447, "longitude": 5.4647621, "altitude": 9, "sats_in_view": null, "precision_bits": 32 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!7c5b0278", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733250968, "to": 4294967295, "id": 494733951, "rx_time": 1755127173, "rx_snr": 0.0, "rx_rssi": -90, "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": 208, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0dc664ac1e1545db41031809257e1d9d6828017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 514614470, "longitude_i": 54647621, "altitude": 9, "time": 1755127166, "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)

0dc664ac1e1545db41031809257e1d9d6828017800800100b80120

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
PD0WES-Louis-3543 (PL43) Primary	0.000s Reference	-90.0 dBm	Unknown	2	LongFast	2025-08-14 01:19:36	Current
PA3JH 🗼 (2.7.3) (3JH2)	-4.942s Before	-106.0 dBm	-9.50 dB	0	LongFast	2025-08-14 01:19:31	View
Afrithon (afrt)	-4.252s Before	-112.0 dBm	-12.75 dB	1	LongFast	2025-08-14 01:19:31	View
Meshtastic bb5c (bb5c)	-3.899s Before	-128.0 dBm	-18.50 dB	1	LongFast	2025-08-14 01:19:32	View
MeshNet (GS-D)	-1.025s Before	Unknown	Unknown	4	LongFast	2025-08-14 01:19:34	View
MeshNet (GS-D)	-0.893s Before	Unknown	Unknown	4	LongFast	2025-08-14 01:19:35	View
MeshNet.NL (GS0D)	-0.880s Before	-125.0 dBm	-15.00 dB	3	LongFast	2025-08-14 01:19:35	View
MeshNet.NL (GS0D)	-0.864s Before	-125.0 dBm	-15.00 dB	3	LongFast	2025-08-14 01:19:35	View
HolRad (HlRd)	-0.137s Before	-113.0 dBm	-4.50 dB	3	LongFast	2025-08-14 01:19:35	View
MT Node Pey (PEY)	+0.133s After	-122.0 dBm	-15.75 dB	3	LongFast	2025-08-14 01:19:36	View
Petra76c4 (76c4)	+0.464s After	-108.0 dBm	-15.50 dB	3	LongFast	2025-08-14 01:19:36	View
Paul home (pah1)	+1.286s After	-127.0 dBm	-11.25 dB	3	LongFast	2025-08-14 01:19:37	View
NL-3545-Knalliebar (KNB0)	+1.419s After	-114.0 dBm	-1.75 dB	3	LongFast	2025-08-14 01:19:37	View
Wateringweg, Haarlem (WaHa)	+1.433s After	-116.0 dBm	-11.00 dB	3	LongFast	2025-08-14 01:19:37	View
Meshtastic 4e50 (4e50)	+1.467s After	-110.0 dBm	-0.75 dB	3	LongFast	2025-08-14 01:19:37	View
Sciuro Home (🏠)	+1.969s After	-109.0 dBm	-10.75 dB	4	LongFast	2025-08-14 01:19:37	View
Xebia 🌐🔌 Hilversum Bridge (XHB)	+2.725s After	-89.0 dBm	10.25 dB	4	LongFast	2025-08-14 01:19:38	View
Meshtastic cc28 (cc28)	+3.232s After	-117.0 dBm	-11.50 dB	4	LongFast	2025-08-14 01:19:39	View
Tomtor Mobile (v7f2)	+4.048s After	-119.0 dBm	-8.25 dB	4	LongFast	2025-08-14 01:19:40	View
Hendrik ido ambacht 3 (Hia3)	+14.401s After	-136.0 dBm	-12.50 dB	5	LongFast	2025-08-14 01:19:50	View

20

Total Receptions

18

Unique Gateways