Packet #2685455 Success

POSITION_APP packet from PA3JH 🗼 (2.7.3) (3JH2) to !ffffffff

33
Total Receptions
33
Unique Gateways
4
Hop Count
27
Payload Bytes
Packet Information
Database ID: 2685455
Mesh Packet ID: 0xba222b45
Used for correlation across gateways
Timestamp: 2025-08-16 13:15:16 UTC
From Node: PA3JH 🗼 (2.7.3) (3JH2)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Colossus 1 (ccw1)
Channel: LongFast
RSSI: -125 dBm
SNR: -16.0 dBm
Hop Info: 4/5 hops
Start: 5, Limit: 1
Payload Data
Protocol: POSITION_APP
Size: 27 bytes
Decoded: Yes
Decoded Data:
Latitude:51.443611°
Longitude:5.471520°
Altitude:12 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:!da5856b0
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
+ 4 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da5856b0
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 862420264
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 -125.0 dBm
Signal strength at gateway 		int32
rx_snr -16.00 dB
Signal quality at gateway 		float
rx_time 1755342916
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 220
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1755342916.3539808
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)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da5856b0
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -125.0 dBm
SNR: -16.00 dB
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": 51.4436114, "longitude": 5.4715205, "altitude": 12, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da5856b0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862420264, "to": 4294967295, "id": 3122801477, "rx_time": 1755342916, "rx_snr": -16.0, "rx_rssi": -125, "hop_limit": 1, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 220, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d12aca91e1545e34203180c254d67a06828017800800100b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 514436114, "longitude_i": 54715205, "altitude": 12, "time": 1755342669, "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)
0d12aca91e1545e34203180c254d67a06828017800800100b80120
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
Colossus 1 (ccw1) Primary 0.000s
Reference 		-125.0 dBm -16.00 dB 4 LongFast 2025-08-16 13:15:16 Current
PA3JH 🗼 (2.7.3) (3JH2) -244.296s
Before 		Unknown Unknown 0 LongFast 2025-08-16 13:11:12 View
PA3JH 🏠 (2.7.5) (3JH1) -239.970s
Before 		-114.0 dBm -18.00 dB 0 LongFast 2025-08-16 13:11:16 View
Daniela VHV (dnla) -238.711s
Before 		-101.0 dBm 4.50 dB 1 LongFast 2025-08-16 13:11:17 View
Meshtastic f61e (f61e) -3.966s
Before 		-122.0 dBm -19.25 dB 2 LongFast 2025-08-16 13:15:12 View
Meshtastic gf30c (gf3c) -3.831s
Before 		-122.0 dBm -1.75 dB 2 LongFast 2025-08-16 13:15:12 View
Afrithon (afrt) -3.816s
Before 		-94.0 dBm 3.00 dB 2 LongFast 2025-08-16 13:15:12 View
Soesterduinen🔌 🌐 🛰️ (🌲) -3.797s
Before 		-118.0 dBm -9.75 dB 2 LongFast 2025-08-16 13:15:12 View
Meshtastic 7c28 (7c28) -3.646s
Before 		-126.0 dBm -10.75 dB 2 LongFast 2025-08-16 13:15:12 View
Meshbase (Mshb) -3.590s
Before 		-126.0 dBm -16.25 dB 2 LongFast 2025-08-16 13:15:12 View
dJoris 📡🏠🌐 StaRF (j8bc) -3.580s
Before 		-120.0 dBm -15.00 dB 2 LongFast 2025-08-16 13:15:12 View
MT Node Pey (PEY) -3.558s
Before 		-114.0 dBm -9.00 dB 2 LongFast 2025-08-16 13:15:12 View
Hatate (GSK0) -3.543s
Before 		-107.0 dBm -8.00 dB 2 LongFast 2025-08-16 13:15:12 View
Joozt - Rijen 🏠 (JZT) -3.520s
Before 		-113.0 dBm -3.75 dB 2 LongFast 2025-08-16 13:15:12 View
SimbaNova (8139) -3.507s
Before 		-113.0 dBm -2.50 dB 2 LongFast 2025-08-16 13:15:12 View
RJ_Rook_1 (RJR1) -3.496s
Before 		-128.0 dBm -16.50 dB 2 LongFast 2025-08-16 13:15:12 View
QLMeshBase - Apeldoorn (QLMB) -3.483s
Before 		-128.0 dBm -18.25 dB 2 LongFast 2025-08-16 13:15:12 View
Meshtastic 4e50 (4e50) -3.472s
Before 		-123.0 dBm -12.00 dB 2 LongFast 2025-08-16 13:15:12 View
Chopin (Chpn) -3.456s
Before 		-144.0 dBm -20.00 dB 2 LongFast 2025-08-16 13:15:12 View
HolRad (HlRd) -3.441s
Before 		-125.0 dBm -15.50 dB 2 LongFast 2025-08-16 13:15:12 View
Kiep (KIEP) -2.441s
Before 		-127.0 dBm -17.50 dB -2 LongFast 2025-08-16 13:15:13 View
NL-3534-Schepenbuurt🏠🔌🌐 (3534) -2.234s
Before 		-99.0 dBm 5.25 dB 3 LongFast 2025-08-16 13:15:14 View
bertrik@gmail.com (HvLn) -2.078s
Before 		-126.0 dBm -16.50 dB 3 LongFast 2025-08-16 13:15:14 View
RSD Langdonk01 🌐 (RL01) -1.942s
Before 		-50.0 dBm 6.50 dB 3 LongFast 2025-08-16 13:15:14 View
NL-3545-Knalliebar (KNB0) -1.806s
Before 		-128.0 dBm -19.00 dB 3 LongFast 2025-08-16 13:15:14 View
PD0WES-Louis-3543 (PL43) -1.797s
Before 		-96.0 dBm -8.50 dB 3 LongFast 2025-08-16 13:15:14 View
MJ T-Beam (MJee) -1.782s
Before 		-118.0 dBm 1.50 dB 3 LongFast 2025-08-16 13:15:14 View
PT | T-Deck 2 (PTD2) -1.132s
Before 		-44.0 dBm 6.00 dB 4 LongFast 2025-08-16 13:15:15 View
Hillywood Oost (HOOS) +0.759s
After 		-124.0 dBm -16.00 dB 4 LongFast 2025-08-16 13:15:17 View
HLM Raaks Base 🏡🛜 (HLR1) +0.894s
After 		-120.0 dBm -13.00 dB 5 LongFast 2025-08-16 13:15:17 View
Wateringweg, Haarlem (WaHa) +2.033s
After 		-91.0 dBm 5.25 dB 5 LongFast 2025-08-16 13:15:18 View
Hendrik ido ambacht 3 (Hia3) +2.167s
After 		-130.0 dBm -8.00 dB 4 LongFast 2025-08-16 13:15:18 View
Ulftastic Fixed 1 (UTF1) +511.622s
After 		-113.0 dBm -3.50 dB 2 LongFast 2025-08-16 13:23:47 View
33

Total Receptions

33

Unique Gateways