Packet #560353 Success

POSITION_APP packet from N1UGK QTH (UGKH) to !ffffffff

18
Total Receptions
18
Unique Gateways
3
Hop Count
17
Payload Bytes
Packet Information
Database ID: 560353
Mesh Packet ID: 0xc13eced1
Used for correlation across gateways
Timestamp: 2025-10-08 16:18:02 UTC
From Node: N1UGK QTH (UGKH)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Mobile Fish 1 | nyme.sh (MF1)
Channel: LongFast
RSSI: -108 dBm
SNR: -11.0 dBm
Hop Info: 3/5 hops
Start: 5, Limit: 2
Relay Node: 0f 68SD
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: 17 bytes
Decoded: Yes
Decoded Data:
Latitude:40.745648°
Longitude:-74.278680°
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:17 bytes
Gateway:!9ea3eccc
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:3 / 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 !9ea3eccc
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (17 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2733340684
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 17 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -108.0 dBm
Signal strength at gateway 		int32
rx_snr -11.00 dB
Signal quality at gateway 		float
rx_time 1759940293
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 15
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759940282.310655
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 (3 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !9ea3eccc
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -108.0 dBm
SNR: -11.00 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:17 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.745648, "longitude": -74.27868, "altitude": 0, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9ea3eccc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733340684, "to": 4294967295, "id": 3242118865, "rx_time": 1759940293, "rx_snr": -11.0, "rx_rssi": -108, "hop_limit": 2, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 15, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0de04a49181510f9b9d318002801b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407456480, "longitude_i": -742786800, "altitude": 0, "location_source": "LOC_MANUAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (17 bytes)
0de04a49181510f9b9d318002801b80120
Hex Analysis:
Size:17 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
Mobile Fish 1 | nyme.sh (MF1) Primary 0.000s
Reference 		-108.0 dBm -11.00 dB 3 0f 68SD LongFast 2025-10-08 16:18:02 UTC Current
K2XAP G2 (XAP2) -3.355s
Before 		-99.0 dBm -10.75 dB 1 96 LongFast 2025-10-08 16:17:58 UTC View
P0NY Express Solar Node (P0NY) -3.000s
Before 		-112.0 dBm -4.25 dB 1 96 LongFast 2025-10-08 16:17:59 UTC View
dkTowerBot (dkTB) -2.234s
Before 		-110.0 dBm -19.00 dB 2 a8 24a8 , REX LongFast 2025-10-08 16:18:00 UTC View
K2XAP / nyme.sh (XAP) -1.966s
Before 		-39.0 dBm 6.50 dB 2 0c XAP2 , 440c LongFast 2025-10-08 16:18:00 UTC View
OC1 (73ca) -0.461s
Before 		-21.0 dBm 6.25 dB 3 5d OC2 LongFast 2025-10-08 16:18:01 UTC View
Monkey (Mike) -0.254s
Before 		-106.0 dBm -1.25 dB 5 d3 Dog LongFast 2025-10-08 16:18:02 UTC View
CBZ0 🚕 mobile (CBZ0) -0.248s
Before 		-124.0 dBm -18.75 dB 3 44 TGP1 , 4044 LongFast 2025-10-08 16:18:02 UTC View
Claudiopolis-440c (440c) -0.235s
Before 		-95.0 dBm -17.00 dB 3 44 4044 LongFast 2025-10-08 16:18:02 UTC View
drp mobile (drpm) -0.193s
Before 		-121.0 dBm -14.75 dB 5 b4 PARK , d1b4 LongFast 2025-10-08 16:18:02 UTC View
Fried Fish FF1 | nyme.sh (FF1) +0.059s
After 		-113.0 dBm -13.75 dB 3 0f 68SD LongFast 2025-10-08 16:18:02 UTC View
JLO1 - 299 Park (JLO1) +0.209s
After 		-99.0 dBm -5.25 dB 5 b4 PARK LongFast 2025-10-08 16:18:02 UTC View
DRP0 Astoria (DRP0) +0.300s
After 		-119.0 dBm -19.00 dB -3 - LongFast 2025-10-08 16:18:02 UTC View
Steiner Studios Tower (SST) +5.982s
After 		-116.0 dBm -17.25 dB 3 81 Titi , JLO9 LongFast 2025-10-08 16:18:08 UTC View
!ebb328a2 (28a2) +5.985s
After 		-98.0 dBm -7.75 dB 3 81 Titi LongFast 2025-10-08 16:18:08 UTC View
Meshtastic 419c (419c) +15.646s
After 		-86.0 dBm 5.00 dB 5 b4 PARK LongFast 2025-10-08 16:18:17 UTC View
De Montfort (dmon) +562.466s
After 		-124.0 dBm -17.00 dB 3 81 Titi LongFast 2025-10-08 16:27:24 UTC View
denvermullets (dmlt) +2240.522s
After 		-109.0 dBm -11.50 dB 5 e4 WRDN , BKBB LongFast 2025-10-08 16:55:22 UTC View
18

Total Receptions

18

Unique Gateways