Packet #2879863 Success

POSITION_APP packet from Morton Williams - seano@masto.nyc (mwb) to !ffffffff

16
Total Receptions
16
Unique Gateways
3
Hop Count
22
Payload Bytes
Packet Information
Database ID: 2879863
Mesh Packet ID: 0xa76421e7
Used for correlation across gateways
Timestamp: 2025-11-29 05:14:48 UTC
From Node: Morton Williams - seano@masto.nyc (mwb)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: POSITION_APP
Port: 3
Gateway: Lv4 - Heltec V4 Green (Lv4)
Channel: LongFast
RSSI: -54 dBm
SNR: 5.75 dBm
Hop Info: 3/3 hops
Start: 3, Limit: 0
Relay Node: 35 JLX5
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:40.727583°
Longitude:-73.998044°
Altitude:47 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:22 bytes
Gateway:!b2a78ce0
Channel:LongFast
Payload Type:POSITION_APP
Hop Count:3 / 3
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 !b2a78ce0
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 3267998965
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 Not set uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 3
Calculated: hop_start - hop_limit 		derived
rx_rssi -54.0 dBm
Signal strength at gateway 		int32
rx_snr 5.75 dB
Signal quality at gateway 		float
rx_time 1764393400
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 53
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764393288.3092206
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: !b2a78ce0
Position Precision: 32 bits (~1.0m accuracy)
Position precision meters: 1.0
Signal Metrics: RSSI: -54.0 dBm
SNR: 5.75 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": 40.727583, "longitude": -73.9980439, "altitude": 47, "sats_in_view": null, "precision_bits": 32 }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a78ce0", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3267998965, "to": 4294967295, "id": 2808357351, "rx_time": 1764393400, "rx_snr": 5.75, "rx_rssi": -54, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 53, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d368946181569cbe4d3182f25df092c692801b80120", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 407275830, "longitude_i": -739980439, "altitude": 47, "time": 1764493791, "location_source": "LOC_MANUAL", "precision_bits": 32, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }
Raw Packet Data (22 bytes)
0d368946181569cbe4d3182f25df092c692801b80120
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
Lv4 - Heltec V4 Green (Lv4) Primary 0.000s
Reference 		-54.0 dBm 5.75 dB 3 35 JLX5 LongFast 2025-11-29 05:14:48 UTC Current
Steiner Studios Tower (SST) -244.626s
Before 		-112.0 dBm -8.50 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 05:10:43 UTC View
ClaremontWx.net (CmWx) -244.596s
Before 		-80.0 dBm 4.50 dB 1 c9 Penn LongFast 2025-11-29 05:10:43 UTC View
DRP1 Chelsea (DRP1) -244.262s
Before 		-78.0 dBm 5.50 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 05:10:44 UTC View
Claudiopolis-440c (440c) -243.796s
Before 		-85.0 dBm -9.25 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 05:10:44 UTC View
K2XAP / nyme.sh (XAP) -243.235s
Before 		-115.0 dBm -7.00 dB 1 c9 Penn , JLX3 LongFast 2025-11-29 05:10:45 UTC View
NHaledon - Dorothy (NHDO) -243.121s
Before 		-109.0 dBm -4.75 dB 2 81 RAK3 LongFast 2025-11-29 05:10:45 UTC View
Fried Fish 1 | nyme.sh (FF1) -242.753s
Before 		-105.0 dBm -11.25 dB 2 - LongFast 2025-11-29 05:10:45 UTC View
Gowanus Soda (p1p) -241.722s
Before 		-118.0 dBm -14.25 dB 3 b8 LongFast 2025-11-29 05:10:46 UTC View
dkTowerBot (dkTB) -241.299s
Before 		-104.0 dBm -14.50 dB 3 b2 CBZ1 LongFast 2025-11-29 05:10:47 UTC View
Sunset Soda (p8p) -240.562s
Before 		-127.0 dBm -15.75 dB 1 57 CmWx LongFast 2025-11-29 05:10:47 UTC View
Meshtastic 631c (631c) -238.161s
Before 		-105.0 dBm -13.75 dB 2 - LongFast 2025-11-29 05:10:50 UTC View
Meshtastic f5c8 (f5c8) -232.022s
Before 		-101.0 dBm -9.00 dB 3 b9 NYCR LongFast 2025-11-29 05:10:56 UTC View
nLink-NY-Jamaica1 (NLJ1) -228.117s
Before 		-92.0 dBm -3.50 dB 2 d1 JLY6 LongFast 2025-11-29 05:11:00 UTC View
YMH 2 @ Your Mom’s House (YMH2) -207.401s
Before 		-59.0 dBm 3.75 dB 3 90 NLG1 LongFast 2025-11-29 05:11:20 UTC View
MeshM0xie (M0x) -10.576s
Before 		-102.0 dBm -6.25 dB 2 88 P3NY LongFast 2025-11-29 05:14:37 UTC View
16

Total Receptions

16

Unique Gateways