Packet #4031289 Success

POSITION_APP packet from JLY4 - Roosevelt Solar (JLY4) to !ffffffff

12
Total Receptions
12
Unique Gateways
4
Hop Count
22
Payload Bytes
Packet Information
Database ID: 4031289
Mesh Packet ID: 0xd754031b
Used for correlation across gateways
Timestamp: 2025-12-24 10:22:52 UTC
From Node: JLY4 - Roosevelt Solar (JLY4)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: dkTowerBot (dkTB)
Channel: LongFast
RSSI: -105 dBm
SNR: -15.75 dBm
Hop Info: 4/6 hops
Start: 6, Limit: 2
Relay Node: 5b wvs1 , 585b , 📟
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: 22 bytes
Decoded: Yes
Decoded Data:
Latitude:40.750285°
Longitude:-73.885286°
Altitude:24 m
Precision:14 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:22 bytes
Gateway:!dddc01fa
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:4 / 6
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
âš  Visible to all nodes on channel
âš  Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !dddc01fa
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (22 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 4035396792
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 3
POSITION_APP 		enum
decoded.payload_length 22 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 6
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -105.0 dBm
Signal strength at gateway 		int32
rx_snr -15.75 dB
Signal quality at gateway 		float
rx_time 1766571939
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 91
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1766571772.5205114
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: ~1500.0m accuracy
Exposure Risks:
  • âš  Visible to all nodes on channel
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  Multi-hop path visible (4 hops)
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !dddc01fa
Position Precision: 14 bits (~1500.0m accuracy)
Position precision meters: 1500.0
Signal Metrics: RSSI: -105.0 dBm
SNR: -15.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:POSITION_APP
Size:22 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "latitude": 40.7502848, "longitude": -73.8852864, "altitude": 24, "sats_in_view": null, "precision_bits": 14 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!dddc01fa", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4035396792, "to": 4294967295, "id": 3612607259, "rx_time": 1766571939, "rx_snr": -15.75, "rx_rssi": -105, "hop_limit": 2, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 91, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d00004a18150000f6d3181828017800800100b8010e", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407502848, "longitude_i": -738852864, "altitude": 24, "location_source": "LOC_MANUAL", "ground_speed": 0, "ground_track": 0, "precision_bits": 14, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d00004a18150000f6d3181828017800800100b8010e
Hex Analysis:
Size:22 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
dkTowerBot (dkTB) Primary 0.000s
Reference 		-105.0 dBm -15.75 dB 4 5b wvs1 , 585b , 📟 LongFast 2025-12-24 10:22:52 UTC Current
ClaremontWx.net (CmWx) -7.706s
Before 		-108.0 dBm -18.00 dB 2 f7 LongFast 2025-12-24 10:22:44 UTC View
YMH 1 @ Your Mom’s House (YMH1) -6.464s
Before 		-91.0 dBm 4.75 dB 2 e8 LIC1 LongFast 2025-12-24 10:22:46 UTC View
K2XAP R1int (XAPM) -6.389s
Before 		-60.0 dBm 5.75 dB 3 57 CmWx LongFast 2025-12-24 10:22:46 UTC View
K2XAP / nyme.sh (XAP) -6.209s
Before 		-39.0 dBm 6.75 dB 3 57 CmWx LongFast 2025-12-24 10:22:46 UTC View
Fried Fish FF1 (FF1) -2.854s
Before 		-86.0 dBm -16.50 dB 5 0f 68SD LongFast 2025-12-24 10:22:49 UTC View
CBZ0 🚕 mobile (CBZ0) -1.969s
Before 		-116.0 dBm -6.25 dB 3 b4 PARK LongFast 2025-12-24 10:22:50 UTC View
Izutsumi - seano@masto.nyc (izu) +0.215s
After 		-86.0 dBm -1.25 dB 4 5b wvs1 LongFast 2025-12-24 10:22:52 UTC View
25 Washington Ave (25WA) +4.542s
After 		-78.0 dBm -4.75 dB 6 69 PYT! LongFast 2025-12-24 10:22:57 UTC View
North Haledon - Dorothy (NHDO) +4.732s
After 		-101.0 dBm -9.50 dB 4 81 RAK3 LongFast 2025-12-24 10:22:57 UTC View
DRP0 Astoria (DRP0) +14.718s
After 		-74.0 dBm -8.75 dB 4 b2 CBZ1 LongFast 2025-12-24 10:23:07 UTC View
Meshtastic 631c (GRBH) +136.906s
After 		-90.0 dBm -1.00 dB 5 23 P4NY LongFast 2025-12-24 10:25:09 UTC View
12

Total Receptions

12

Unique Gateways