Packet #2685316 Success

POSITION_APP packet from !25b1df24 to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	2685316
Mesh Packet ID:	`0x38f68680` Used for correlation across gateways
Timestamp:	2025-08-16 13:14:41 UTC
From Node:	!25b1df24 (df24)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	PA3JH 🏠 (2.7.5) (3JH1)
Channel:	LongFast
RSSI:	-98 dBm
SNR:	-1.5 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5

Payload Data

Protocol: POSITION_APP

Size: 28 bytes

Decoded: Yes

Decoded Data:

Latitude:	50.357862°
Longitude:	7.366246°
Altitude:	197 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:	!a2ea1998
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 7

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`	`!a2ea1998` 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`	`632413988` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-98.0` dBm Signal strength at gateway	int32
`rx_snr`	`-1.50` dB Signal quality at gateway	float
`rx_time`	`1755342880` 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`	`206` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755342881.6101775` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!a2ea1998`
Position Precision:	13 bits (~2900.0m accuracy)
Position precision meters:	`2900.0`
Signal Metrics:	RSSI: -98.0 dBm SNR: -1.50 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": 50.3578624, "longitude": 7.3662464, "altitude": 197, "sats_in_view": null, "precision_bits": 13 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a2ea1998", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 632413988, "to": 4294967295, "id": 955680384, "rx_time": 1755342880, "rx_snr": -1.5, "rx_rssi": -98, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 206, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000041e150000640418c501251a65a06828017800800100b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 503578624, "longitude_i": 73662464, "altitude": 197, "time": 1755342106, "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)

0d0000041e150000640418c501251a65a06828017800800100b8010d

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
PA3JH 🏠 (2.7.5) (3JH1) Primary	0.000s Reference	-98.0 dBm	-1.50 dB	2	LongFast	2025-08-16 13:14:41	Current
EH14 - Malden (EH14)	-0.036s Before	-117.0 dBm	-13.50 dB	2	LongFast	2025-08-16 13:14:41	View
Meshtastic gf30c (gf3c)	-0.024s Before	-132.0 dBm	-9.50 dB	2	LongFast	2025-08-16 13:14:41	View
Afrithon (afrt)	-0.012s Before	-99.0 dBm	-0.25 dB	2	LongFast	2025-08-16 13:14:41	View
9E72 Pi (9E72)	+0.012s After	-117.0 dBm	-13.25 dB	2	LongFast	2025-08-16 13:14:41	View
NIMB1 (6680)	+0.020s After	-125.0 dBm	-17.75 dB	2	LongFast	2025-08-16 13:14:41	View
Sciuro Home (🏠)	+0.030s After	-121.0 dBm	-10.75 dB	2	LongFast	2025-08-16 13:14:41	View
Kiep (KIEP)	+0.039s After	-128.0 dBm	-17.00 dB	-5	LongFast	2025-08-16 13:14:41	View
Meshtastic 7c28 (7c28)	+0.172s After	-120.0 dBm	-5.00 dB	2	LongFast	2025-08-16 13:14:41	View
Meshbase (Mshb)	+0.288s After	-119.0 dBm	-9.75 dB	2	LongFast	2025-08-16 13:14:41	View
No13 Oirschot (OIR1)	+0.301s After	-119.0 dBm	-10.00 dB	2	LongFast	2025-08-16 13:14:41	View
Joozt - Rijen 🏠 (JZT)	+0.317s After	-107.0 dBm	1.75 dB	2	LongFast	2025-08-16 13:14:41	View
dJoris 📡🏠🌐 StaRF (j8bc)	+0.332s After	-120.0 dBm	-14.00 dB	2	LongFast	2025-08-16 13:14:41	View
MT Node Pey (PEY)	+0.345s After	-108.0 dBm	-3.50 dB	2	LongFast	2025-08-16 13:14:41	View
RJ_Rook_1 (RJR1)	+0.400s After	-119.0 dBm	-7.50 dB	2	LongFast	2025-08-16 13:14:42	View
Hatate (GSK0)	+0.413s After	-106.0 dBm	-19.00 dB	2	LongFast	2025-08-16 13:14:42	View
QLMeshBase - Apeldoorn (QLMB)	+0.449s After	-123.0 dBm	-12.25 dB	2	LongFast	2025-08-16 13:14:42	View
Tubetastic 🏠 (TTH)	+0.460s After	-128.0 dBm	-17.50 dB	2	LongFast	2025-08-16 13:14:42	View
Colossus 1 (ccw1)	+1.449s After	-114.0 dBm	-5.50 dB	3	LongFast	2025-08-16 13:14:43	View
MJ T-Beam (MJee)	+2.128s After	-121.0 dBm	-0.50 dB	3	LongFast	2025-08-16 13:14:43	View
Zaphod B 01 (Z01)	+2.263s After	-35.0 dBm	6.50 dB	3	LongFast	2025-08-16 13:14:43	View
RSD Langdonk01 🌐 (RL01)	+2.273s After	-50.0 dBm	6.25 dB	3	LongFast	2025-08-16 13:14:43	View
NL-3545-Knalliebar (KNB0)	+2.397s After	-109.0 dBm	2.75 dB	3	LongFast	2025-08-16 13:14:44	View
MeshNet (GS-D)	+3.480s After	Unknown	Unknown	4	LongFast	2025-08-16 13:14:45	View
MeshNet (GS-D)	+3.490s After	Unknown	Unknown	4	LongFast	2025-08-16 13:14:45	View
MeshNet.NL (GS0D)	+3.510s After	-119.0 dBm	-8.75 dB	3	LongFast	2025-08-16 13:14:45	View
MeshNet.NL (GS0D)	+3.521s After	-119.0 dBm	-8.75 dB	3	LongFast	2025-08-16 13:14:45	View
HolRad (HlRd)	+3.624s After	-126.0 dBm	-17.00 dB	4	LongFast	2025-08-16 13:14:45	View
ALM-BC-Satisfaction (Ally)	+3.818s After	-109.0 dBm	-10.25 dB	3	LongFast	2025-08-16 13:14:45	View
Meshtastic 4e50 (4e50)	+4.991s After	-128.0 dBm	-19.00 dB	5	LongFast	2025-08-16 13:14:46	View
Xebia 🌐🔌 Hilversum Bridge (XHB)	+7.745s After	-86.0 dBm	12.25 dB	6	LongFast	2025-08-16 13:14:49	View
Wateringweg, Haarlem (WaHa)	+10.027s After	-107.0 dBm	-2.50 dB	5	LongFast	2025-08-16 13:14:51	View
HLM Raaks Base 🏡🛜 (HLR1)	+11.392s After	-118.0 dBm	-11.25 dB	6	LongFast	2025-08-16 13:14:53	View
Leimuiden - Bas (LMDN)	+11.894s After	-122.0 dBm	-13.00 dB	6	LongFast	2025-08-16 13:14:53	View
Daniela VHV (dnla)	+21.633s After	-101.0 dBm	5.50 dB	4	LongFast	2025-08-16 13:15:03	View
Terwinselen \| Kerkrade \| Netherlands (TKNB)	+34.129s After	-124.0 dBm	-9.50 dB	4	OpenChat	2025-08-16 13:15:15	View
Meshtastic cc28 (cc28)	+79.622s After	-126.0 dBm	-19.50 dB	4	LongFast	2025-08-16 13:16:01	View
Ulftastic Fixed 1 (UTF1)	+546.354s After	-112.0 dBm	-3.50 dB	2	LongFast	2025-08-16 13:23:47	View

38

Total Receptions

36

Unique Gateways