Packet #29323155 Success

POSITION_APP packet from Kala_CLM (Kala) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	29323155
Mesh Packet ID:	`0xb8e9fe0c` Used for correlation across gateways
Timestamp:	2025-12-22 09:59:33 UTC
From Node:	Kala_CLM (Kala)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	Meshtastic b2b4📡🌐 (b2b4)
Channel:	MediumFast
RSSI:	-114 dBm
SNR:	-13.0 dBm
Hop Info:	3/7 hops Start: 7, Limit: 4
Relay Node:	`e2` Red Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: POSITION_APP

Size: 37 bytes

Decoded: Yes

Decoded Data:

Latitude:	40.311194°
Longitude:	-3.440640°
Altitude:	636 m
Satellites:	4
Precision:	15 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:	!433db2b4
Channel:	MediumFast
Payload Type:	POSITION_APP
Hop Count:	3 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433db2b4` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (37 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3877556925` 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`	`4` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-114.0` dBm Signal strength at gateway	int32
`rx_snr`	`-13.00` dB Signal quality at gateway	float
`rx_time`	`1766397571` 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`	`226` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1766397573.429325` 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)
✓ Custom channel: MediumFast
✓ Gateway node ID tracked
✓ Reduced position precision: ~729.0m accuracy

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433db2b4`
Position Precision:	15 bits (~729.0m accuracy)
Position precision meters:	`729.0`
Signal Metrics:	RSSI: -114.0 dBm SNR: -13.00 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": 40.3111936, "longitude": -3.44064, "altitude": 636, "sats_in_view": 4, "precision_bits": 15 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433db2b4", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3877556925, "to": 4294967295, "id": 3102342668, "rx_time": 1766397571, "rx_snr": -13.0, "rx_rssi": -114, "hop_limit": 4, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 226, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00000718150000f3fd18fc04257d164969280258fb0378008001989e8508980104b8010f", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 403111936, "longitude_i": -34406400, "altitude": 636, "time": 1766397565, "location_source": "LOC_INTERNAL", "PDOP": 507, "ground_speed": 0, "ground_track": 16863000, "sats_in_view": 4, "precision_bits": 15, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (37 bytes)

0d00000718150000f3fd18fc04257d164969280258fb0378008001989e8508980104b8010f

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	Relay	Channel	Timestamp	Actions
Meshtastic b2b4📡🌐 (b2b4) Primary	0.000s Reference	-114.0 dBm	-13.00 dB	3	`e2` Red	MediumFast	2025-12-22 09:59:33 UTC	Current
Venturada2 🗼🌞 (Vb2)	-1.319s Before	-92.0 dBm	0.50 dB	1	`fc` Anu2	MediumFast	2025-12-22 09:59:32 UTC	View
Karabanchel_Baldur (KarB)	+0.010s After	-104.0 dBm	-9.50 dB	3	`e2` Red	MediumFast	2025-12-22 09:59:33 UTC	View
Ocumare Norte🗼🌐 (RRN)	+0.012s After	-11.0 dBm	11.25 dB	3	`6f` RRN4	MediumFast	2025-12-22 09:59:33 UTC	View
GRN1-Base🗼🌐 🔋 (GRN1)	+0.049s After	-108.0 dBm	-11.00 dB	1	`fc` Anu2	MediumFast	2025-12-22 09:59:33 UTC	View
XiaoWatt c4c8 🌐🔌 (c4c8)	+0.264s After	-78.0 dBm	8.50 dB	2	`b0` Vbm , Vb2	MediumFast	2025-12-22 09:59:33 UTC	View
GRN2-Cli 📡🔋 (GRN2)	+0.291s After	-86.0 dBm	10.25 dB	2	`e8` GRN1	MediumFast	2025-12-22 09:59:33 UTC	View
Eagle’s Nest (EAGL)	+0.465s After	-105.0 dBm	1.75 dB	3	`74`	MediumFast	2025-12-22 09:59:33 UTC	View
MOVIL 1 🟢 MANCHASTIC (MV1V)	+0.483s After	-123.0 dBm	-13.75 dB	2	`aa` CR1	MediumFast	2025-12-22 09:59:33 UTC	View
P3 iGate 🏠🌐 (P3N2)	+1.086s After	-39.0 dBm	10.75 dB	3	`25` P3N1	MediumFast	2025-12-22 09:59:34 UTC	View
JAGO1_Cañaveral (JAGO)	+1.196s After	-121.0 dBm	-12.00 dB	3	`20` PMV4	MediumFast	2025-12-22 09:59:34 UTC	View
Skynet (Sky)	+1.399s After	-50.0 dBm	10.25 dB	3	`2d` SkyB	MediumFast	2025-12-22 09:59:34 UTC	View
PXT_Home (PXT1)	+1.434s After	-92.0 dBm	9.00 dB	4	`fd` BAS2	MediumFast	2025-12-22 09:59:34 UTC	View
Wake Up, Neo...📡 (NEO)	+1.446s After	-98.0 dBm	-4.00 dB	4	`f5` RPT4	MediumFast	2025-12-22 09:59:34 UTC	View
🤖 Nicolas Cage 🌐 (Cage)	+1.453s After	-68.0 dBm	10.75 dB	3	`2d` SkyB	MediumFast	2025-12-22 09:59:34 UTC	View
tizon (Sylv)	+1.491s After	-122.0 dBm	-13.25 dB	3	`2d` SkyB	MediumFast	2025-12-22 09:59:34 UTC	View
Villarejo01 (VIL1)	+1.506s After	-36.0 dBm	10.75 dB	4	`c6` d5c6	MediumFast	2025-12-22 09:59:34 UTC	View
Aldinra_1640_🗼_🌐 (AldB)	+1.821s After	-117.0 dBm	-7.00 dB	4	`f5` RPT4	MediumFast	2025-12-22 09:59:35 UTC	View
Meshtastic JT01 (JT01)	+1.884s After	-108.0 dBm	2.25 dB	5	`22` JT03	MediumFast	2025-12-22 09:59:35 UTC	View
🎄 SkG@Home 📡🌐 (SkGH)	+1.906s After	-81.0 dBm	-11.50 dB	3	`56` 8d56 , 3d56	MediumFast	2025-12-22 09:59:35 UTC	View
Meshtastic 18a4 (18a4)	+2.521s After	-114.0 dBm	-8.75 dB	5	`40` AldB	MediumFast	2025-12-22 09:59:35 UTC	View
Meshtastic 1760 (1760)	+2.868s After	Unknown	Unknown	6	`a4` 18a4	MediumFast	2025-12-22 09:59:36 UTC	View
chenton (chtn)	+7.832s After	-116.0 dBm	-3.00 dB	6	`d4` ⛩	MediumFast	2025-12-22 09:59:41 UTC	View

23

Total Receptions

23

Unique Gateways