Packet #2514539 Success

POSITION_APP packet from Meshtastic a846 (a846) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	2514539
Mesh Packet ID:	`0xb293846e` Used for correlation across gateways
Timestamp:	2025-08-15 06:49:01 UTC
From Node:	Meshtastic a846 (a846)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Twistit 🇳🇱 (👽)
Channel:	LongFast
RSSI:	-127 dBm
SNR:	-19.5 dBm
Hop Info:	1/6 hops Start: 6, Limit: 5

Payload Data

Protocol: POSITION_APP

Size: 33 bytes

Decoded: Yes

Decoded Data:

Latitude:	52.297728°
Longitude:	4.954522°
Altitude:	10 m
Satellites:	7
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:	33 bytes
Gateway:	!e00cef58
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	1 / 6

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`	`!e00cef58` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (33 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`473409606` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`33` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-127.0` dBm Signal strength at gateway	int32
`rx_snr`	`-19.50` dB Signal quality at gateway	float
`rx_time`	`1755233340` 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`	`1755233341.6689615` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!e00cef58`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -127.0 dBm SNR: -19.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	33 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 52.297728, "longitude": 4.9545216, "altitude": 10, "sats_in_view": 7, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!e00cef58", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 473409606, "to": 4294967295, "id": 2996012142, "rx_time": 1755233340, "rx_snr": -19.5, "rx_rssi": -127, "hop_limit": 5, "hop_start": 6, "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": "0d00002c1f150000f402180a253ebc9e6828025896057800800100980107b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 522977280, "longitude_i": 49545216, "altitude": 10, "time": 1755233342, "location_source": "LOC_INTERNAL", "PDOP": 662, "ground_speed": 0, "ground_track": 0, "sats_in_view": 7, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (33 bytes)

0d00002c1f150000f402180a253ebc9e6828025896057800800100980107b8010d

Hex Analysis:

Size:	33 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
Twistit 🇳🇱 (👽) Primary	0.000s Reference	-127.0 dBm	-19.50 dB	1	LongFast	2025-08-15 06:49:01	Current
Twistit 🇳🇱 (👽)	+0.014s After	-127.0 dBm	-19.50 dB	1	LongFast	2025-08-15 06:49:01	View
HolRad (HlRd)	+0.028s After	-123.0 dBm	-14.00 dB	1	LongFast	2025-08-15 06:49:01	View
dJoris 📡🏠🌐 StaRF (j8bc)	+1.194s After	-121.0 dBm	-14.75 dB	2	LongFast	2025-08-15 06:49:02	View
NL-3545-Knalliebar (KNB0)	+2.163s After	-116.0 dBm	-4.00 dB	2	LongFast	2025-08-15 06:49:03	View
Sciuro Home (🏠)	+3.237s After	-112.0 dBm	-4.50 dB	2	LongFast	2025-08-15 06:49:04	View
Xebia 🌐🔌 Hilversum Bridge (XHB)	+4.250s After	-93.0 dBm	11.00 dB	3	LongFast	2025-08-15 06:49:05	View
Ams Zuidas Base (AZ4)	+5.695s After	-115.0 dBm	-18.00 dB	2	LongFast	2025-08-15 06:49:07	View
Joozt - Rijen 🏠 (JZT)	+5.829s After	-124.0 dBm	-15.25 dB	2	LongFast	2025-08-15 06:49:07	View
013FvSBase-Meshtastic (4d10)	+7.173s After	-114.0 dBm	-6.50 dB	3	LongFast	2025-08-15 06:49:08	View
Leimuiden - Bas (LMDN)	+7.341s After	-125.0 dBm	-14.50 dB	3	LongFast	2025-08-15 06:49:09	View
Meshtastic 4e50 (4e50)	+9.405s After	-125.0 dBm	-16.25 dB	5	LongFast	2025-08-15 06:49:11	View
Petra76c4 (76c4)	+10.195s After	-96.0 dBm	7.00 dB	3	LongFast	2025-08-15 06:49:11	View
MeshNet (GS-D)	+10.330s After	Unknown	Unknown	4	LongFast	2025-08-15 06:49:11	View
MeshNet (GS-D)	+10.339s After	Unknown	Unknown	4	LongFast	2025-08-15 06:49:12	View
MeshNet.NL (GS0D)	+10.465s After	-119.0 dBm	-9.50 dB	3	LongFast	2025-08-15 06:49:12	View
MeshNet.NL (GS0D)	+10.476s After	-119.0 dBm	-9.50 dB	3	LongFast	2025-08-15 06:49:12	View
PE1NTN-3 (NTN3)	+10.736s After	-124.0 dBm	-14.00 dB	6	LongFast	2025-08-15 06:49:12	View
PD0WES-Louis-3543 (PL43)	+12.305s After	-93.0 dBm	-3.25 dB	3	LongFast	2025-08-15 06:49:13	View
HLM Raaks Base 🏡🛜 (HLR1)	+14.240s After	-119.0 dBm	-11.25 dB	5	LongFast	2025-08-15 06:49:15	View
Wateringweg, Haarlem (WaHa)	+14.437s After	-92.0 dBm	5.75 dB	5	LongFast	2025-08-15 06:49:16	View
Paul home (pah1)	+18.070s After	-122.0 dBm	-6.75 dB	5	LongFast	2025-08-15 06:49:19	View

22

Total Receptions

19

Unique Gateways