Packet #2337390 Success

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

20
Total Receptions
18
Unique Gateways
4
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2337390
Mesh Packet ID: 0x1d7d0a7f
Used for correlation across gateways
Timestamp: 2025-08-14 01:19:34 UTC
From Node: PA3JH 🏠 (2.7.5) (3JH1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: MeshNet (GS-D)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 4/5 hops
Start: 5, Limit: 1
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:!55cafe69
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:4 / 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
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !55cafe69
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

FieldValueType
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 1
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1755127174
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 64
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 212
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1755127174.9828568
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 (4 hops)
MQTT-Specific Fields
Gateway ID: !55cafe69
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
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": "!55cafe69", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733250968, "to": 4294967295, "id": 494733951, "rx_time": 1755127174, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 212, "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
MeshNet (GS-D) Primary 0.000s
Reference 		Unknown Unknown 4 LongFast 2025-08-14 01:19:34 Current
PA3JH 🗼 (2.7.3) (3JH2) -3.916s
Before 		-106.0 dBm -9.50 dB 0 LongFast 2025-08-14 01:19:31 View
Afrithon (afrt) -3.227s
Before 		-112.0 dBm -12.75 dB 1 LongFast 2025-08-14 01:19:31 View
Meshtastic bb5c (bb5c) -2.874s
Before 		-128.0 dBm -18.50 dB 1 LongFast 2025-08-14 01:19:32 View
MeshNet (GS-D) +0.133s
After 		Unknown Unknown 4 LongFast 2025-08-14 01:19:35 View
MeshNet.NL (GS0D) +0.145s
After 		-125.0 dBm -15.00 dB 3 LongFast 2025-08-14 01:19:35 View
MeshNet.NL (GS0D) +0.162s
After 		-125.0 dBm -15.00 dB 3 LongFast 2025-08-14 01:19:35 View
HolRad (HlRd) +0.888s
After 		-113.0 dBm -4.50 dB 3 LongFast 2025-08-14 01:19:35 View
PD0WES-Louis-3543 (PL43) +1.025s
After 		-90.0 dBm Unknown 2 LongFast 2025-08-14 01:19:36 View
MT Node Pey (PEY) +1.158s
After 		-122.0 dBm -15.75 dB 3 LongFast 2025-08-14 01:19:36 View
Petra76c4 (76c4) +1.489s
After 		-108.0 dBm -15.50 dB 3 LongFast 2025-08-14 01:19:36 View
Paul home (pah1) +2.311s
After 		-127.0 dBm -11.25 dB 3 LongFast 2025-08-14 01:19:37 View
NL-3545-Knalliebar (KNB0) +2.444s
After 		-114.0 dBm -1.75 dB 3 LongFast 2025-08-14 01:19:37 View
Wateringweg, Haarlem (WaHa) +2.458s
After 		-116.0 dBm -11.00 dB 3 LongFast 2025-08-14 01:19:37 View
Meshtastic 4e50 (4e50) +2.492s
After 		-110.0 dBm -0.75 dB 3 LongFast 2025-08-14 01:19:37 View
Sciuro Home (🏠) +2.994s
After 		-109.0 dBm -10.75 dB 4 LongFast 2025-08-14 01:19:37 View
Xebia 🌐🔌 Hilversum Bridge (XHB) +3.751s
After 		-89.0 dBm 10.25 dB 4 LongFast 2025-08-14 01:19:38 View
Meshtastic cc28 (cc28) +4.258s
After 		-117.0 dBm -11.50 dB 4 LongFast 2025-08-14 01:19:39 View
Tomtor Mobile (v7f2) +5.073s
After 		-119.0 dBm -8.25 dB 4 LongFast 2025-08-14 01:19:40 View
Hendrik ido ambacht 3 (Hia3) +15.426s
After 		-136.0 dBm -12.50 dB 5 LongFast 2025-08-14 01:19:50 View
20

Total Receptions

18

Unique Gateways