Packet #2685199 Success

POSITION_APP packet from !849ac650 to !ffffffff

22
Total Receptions
22
Unique Gateways
3
Hop Count
37
Payload Bytes
Packet Information
Database ID: 2685199
Mesh Packet ID: 0x022b6004
Used for correlation across gateways
Timestamp: 2025-08-16 13:13:59 UTC
From Node: !849ac650 (c650)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: NL-3545-Knalliebar (KNB0)
Channel: LongFast
RSSI: -109 dBm
SNR: 2.25 dBm
Hop Info: 3/3 hops
Start: 3, Limit: 0
Payload Data
Protocol: POSITION_APP
Size: 37 bytes
Decoded: Yes
Decoded Data:
Latitude:50.672435°
Longitude:6.946816°
Altitude:188 m
Satellites:8
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:37 bytes
Gateway:!da5ed4d0
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:3 / 3
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

FieldValue
gateway_id !da5ed4d0
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (37 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2224735824
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 Not set uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -109.0 dBm
Signal strength at gateway 		int32
rx_snr 2.25 dB
Signal quality at gateway 		float
rx_time 1755342838
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 1755342839.7572684
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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da5ed4d0
Position Precision: 13 bits (~2900.0m accuracy)
Position precision meters: 2900.0
Signal Metrics: RSSI: -109.0 dBm
SNR: 2.25 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": 50.6724352, "longitude": 6.946816, "altitude": 188, "sats_in_view": 8, "precision_bits": 13 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da5ed4d0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2224735824, "to": 4294967295, "id": 36397060, "rx_time": 1755342838, "rx_snr": 2.25, "rx_rssi": -109, "hop_limit": 0, "hop_start": 3, "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": "0d0000341e150000240418bc0125d864a0682802588402781b8001a0d1fe08980108b8010d", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 506724352, "longitude_i": 69468160, "altitude": 188, "time": 1755342040, "location_source": "LOC_INTERNAL", "PDOP": 260, "ground_speed": 27, "ground_track": 18852000, "sats_in_view": 8, "precision_bits": 13, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (37 bytes)
0d0000341e150000240418bc0125d864a0682802588402781b8001a0d1fe08980108b8010d
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 Channel Timestamp Actions
NL-3545-Knalliebar (KNB0) Primary 0.000s
Reference 		-109.0 dBm 2.25 dB 3 LongFast 2025-08-16 13:13:59 Current
9E72 Pi (9E72) -4.055s
Before 		-118.0 dBm -17.50 dB 1 LongFast 2025-08-16 13:13:55 View
Meshtastic gf30c (gf3c) -3.920s
Before 		-136.0 dBm -12.25 dB 1 LongFast 2025-08-16 13:13:55 View
EH14 - Malden (EH14) -3.902s
Before 		-111.0 dBm -7.75 dB 1 LongFast 2025-08-16 13:13:55 View
PA3JH 🏠 (2.7.5) (3JH1) -3.887s
Before 		-96.0 dBm -7.50 dB 1 LongFast 2025-08-16 13:13:55 View
Afrithon (afrt) -3.837s
Before 		-96.0 dBm 2.50 dB 1 LongFast 2025-08-16 13:13:55 View
Kiep (KIEP) -3.819s
Before 		-128.0 dBm -19.25 dB -2 LongFast 2025-08-16 13:13:55 View
Meshbase (Mshb) -3.640s
Before 		-124.0 dBm -14.00 dB 1 LongFast 2025-08-16 13:13:56 View
Aelse0001 (AE01) -3.630s
Before 		-123.0 dBm -17.00 dB 1 LongFast 2025-08-16 13:13:56 View
MT Node Pey (PEY) -3.620s
Before 		-108.0 dBm -4.25 dB 1 LongFast 2025-08-16 13:13:56 View
No13 Oirschot (OIR1) -3.605s
Before 		-117.0 dBm -8.00 dB 1 LongFast 2025-08-16 13:13:56 View
Joozt - Rijen 🏠 (JZT) -3.590s
Before 		-114.0 dBm -6.75 dB 1 LongFast 2025-08-16 13:13:56 View
Meshtastic 7c28 (7c28) -3.477s
Before 		-126.0 dBm -7.50 dB 1 LongFast 2025-08-16 13:13:56 View
Maasdijk Giessen Base Station (MGBS) -3.460s
Before 		-143.0 dBm -19.75 dB 1 LongFast 2025-08-16 13:13:56 View
RJ_Rook_1 (RJR1) -3.442s
Before 		-113.0 dBm -1.25 dB 1 LongFast 2025-08-16 13:13:56 View
Colossus 1 (ccw1) -2.513s
Before 		-123.0 dBm -14.00 dB 2 LongFast 2025-08-16 13:13:57 View
PD0WES-Louis-3543 (PL43) -2.039s
Before 		-94.0 dBm -7.25 dB 2 LongFast 2025-08-16 13:13:57 View
RSD Langdonk01 🌐 (RL01) -1.905s
Before 		-49.0 dBm 6.00 dB 2 LongFast 2025-08-16 13:13:57 View
NIMB1 (6680) -0.702s
Before 		-115.0 dBm -8.25 dB 2 LongFast 2025-08-16 13:13:59 View
Rood af7c (af7c) +0.776s
After 		-125.0 dBm -15.50 dB 2 LongFast 2025-08-16 13:14:00 View
Daniela VHV (dnla) +2.912s
After 		-101.0 dBm 5.75 dB 3 LongFast 2025-08-16 13:14:02 View
Ulftastic Fixed 1 (UTF1) +588.161s
After 		-121.0 dBm -13.00 dB 1 LongFast 2025-08-16 13:23:47 View
22

Total Receptions

22

Unique Gateways