Packet #3379035 Success

POSITION_APP packet from N1UGK QTH (UGKH) to !ffffffff

17
Total Receptions
17
Unique Gateways
5
Hop Count
17
Payload Bytes
Packet Information
Database ID: 3379035
Mesh Packet ID: 0xaa2df9f5
Used for correlation across gateways
Timestamp: 2025-12-10 18:02:22 UTC
From Node: N1UGK QTH (UGKH)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: JOS1tastic 1497 (JOS1)
Channel: LongFast
RSSI: -113 dBm
SNR: -15.0 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: None
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:!b8581497
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:5 / 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 !b8581497
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 Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -113.0 dBm
Signal strength at gateway 		int32
rx_snr -15.00 dB
Signal quality at gateway 		float
rx_time 1765389878
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 1765389742.404332
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 (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b8581497
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -113.0 dBm
SNR: -15.00 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": "!b8581497", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733340684, "to": 4294967295, "id": 2855139829, "rx_time": 1765389878, "rx_snr": -15.0, "rx_rssi": -113, "hop_limit": 0, "hop_start": 5, "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": "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
JOS1tastic 1497 (JOS1) Primary 0.000s
Reference 		-113.0 dBm -15.00 dB 5 - LongFast 2025-12-10 18:02:22 UTC Current
dkTowerBot (dkTB) -101.279s
Before 		-102.0 dBm -14.50 dB 4 2b P2NY , DCS1 LongFast 2025-12-10 18:00:41 UTC View
ClaremontWx.net (CmWx) -101.250s
Before 		-107.0 dBm -16.50 dB 4 2b P2NY LongFast 2025-12-10 18:00:41 UTC View
Izutsumi - seano@masto.nyc (izu) -100.772s
Before 		-85.0 dBm -4.00 dB 4 2b P2NY LongFast 2025-12-10 18:00:41 UTC View
Meshtastic e41a (GRBT) -98.316s
Before 		-122.0 dBm -12.75 dB 5 04 e404 , e104 , 🦏 , CHTG LongFast 2025-12-10 18:00:44 UTC View
25 Washington Ave (25WA) -85.961s
Before 		-85.0 dBm -15.75 dB 5 60 LongFast 2025-12-10 18:00:56 UTC View
Meshtastic 28ec (28ec) -8.023s
Before 		-128.0 dBm -17.25 dB 1 - LongFast 2025-12-10 18:02:14 UTC View
MeshM0xie (M0x) -5.124s
Before 		-105.0 dBm -11.50 dB 2 88 P3NY LongFast 2025-12-10 18:02:17 UTC View
YMH 1 @ Your Mom’s House (YMH1) -4.321s
Before 		-114.0 dBm -10.00 dB 3 7b 4b7b LongFast 2025-12-10 18:02:18 UTC View
Meshtastic 1ca3 (1ca3) -3.924s
Before 		-123.0 dBm -17.50 dB 3 7b 4b7b LongFast 2025-12-10 18:02:18 UTC View
Whole Foods Market UES (WFMK) -3.916s
Before 		-114.0 dBm -12.75 dB 3 7b 4b7b LongFast 2025-12-10 18:02:18 UTC View
nLink-NY-Jamaica1 (NLJ1) -3.339s
Before 		-89.0 dBm 4.00 dB 2 88 grns , 2f88 , P3NY LongFast 2025-12-10 18:02:19 UTC View
Fried Fish FF1 (FF1) -3.008s
Before 		-89.0 dBm -6.50 dB 3 b8 🫠 LongFast 2025-12-10 18:02:19 UTC View
Mobile Fish 4 (MF4) -2.978s
Before 		-117.0 dBm -13.75 dB 3 b8 LongFast 2025-12-10 18:02:19 UTC View
JLO (fe6e) -2.726s
Before 		-110.0 dBm -7.75 dB 4 dc LongFast 2025-12-10 18:02:19 UTC View
Steiner Studios Tower (SST) +0.876s
After 		-124.0 dBm -18.25 dB 4 f8 DCB1 LongFast 2025-12-10 18:02:23 UTC View
Meshtastic 631c (GRBH) +10.001s
After 		-91.0 dBm -3.50 dB 3 23 P4NY LongFast 2025-12-10 18:02:32 UTC View
17

Total Receptions

17

Unique Gateways