---
title: "JCSys Reference - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "A handy Tactical Data Link (TDL) and MODAF Reference application.  Features include:  * Link 11 (M Series) message catalogue and descriptions  * Link 16 (J Series) message catalogue and descriptions  "
---

# JCSys Reference — United States

![JCSys Reference App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/97/b7/58/97b7586a-9711-6c06-fe4f-0600ad4f234f/AppIcon-1x_U007emarketing-0-0-GLES2_U002c0-512MB-sRGB-0-0-0-85-220-0-0-0-9.png/434x0w.png)

**Developer:** [Graeme Watson](https://apptail.io/developer/graeme-watson-SIze) (United Kingdom)
**Category:** Reference
**Rating:** 4.8/5 (5 ratings)
**Price:** Free
**Bundle ID:** uk.co.jcsys.JCSysRef
**Store:** Apple App Store
**Country:** United States
**Version:** 1.5 (released 2017-10-05)
**Original Release:** 2012-12-10
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id584340426)
**AppTail Page:** [https://apptail.io/app/jcsys-reference-Ighf/united-states](https://apptail.io/app/jcsys-reference-Ighf/united-states)

## JCSys Reference Description
A handy Tactical Data Link (TDL) and MODAF Reference application. 
Features include: 
* Link 11 (M Series) message catalogue and descriptions 
* Link 16 (J Series) message catalogue and descriptions 
* Link 16 Network Participation Group (NPG) list 
* Link 22 (FJ Series) message catalogue and descriptions 
* Knowledge Test - test your knowledge of the Message Numbers and names
* MODAF View Reference guide
* Acronym Finder - search our list of common TDL Related acronyms

## JCSys Reference Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/07/8c/00/078c0093-5c6c-0e66-f230-19e481a1d3db/mzl.oouiugah.png/640x960.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/73/3b/8a/733b8aea-10b3-9a10-d0cc-c67682e455c4/mzl.dtpxapnh.png/640x960.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/22/6c/6a/226c6a57-0474-49bd-6192-4a1336dfb71b/mzl.kgrhppet.png/640x960.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/fb/e9/67/fbe9675a-e2e5-6d1f-145d-6e09c42c4fa8/mzl.zrvhiolw.png/640x960.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/0b/1f/79/0b1f7965-952f-aac7-46e7-364fe41dadea/mzl.mhjmjiro.png/640x960.png)

## JCSys Reference Rating Breakdown in United States
- 5 stars: 4 (80%)
- 4 stars: 1 (20%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## JCSys Reference Reviews in United States

### ***** "Great resource"
I use this app all the time as a quick reference for J messages and NPGs.
-- Gravy54367853257975, 2025-01-08

### ****- "Excellent"
Please add NPG reference for Link 16. Thanks!
-- Hieumongous, 2012-12-11

[View all JCSys Reference reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




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## JCSys Reference Available In
- [United States](https://apptail.io/app/jcsys-reference-Ighf/united-states)
- [Sweden](https://apptail.io/app/jcsys-reference-Ighf/sweden)
- [United Kingdom](https://apptail.io/app/jcsys-reference-Ighf/united-kingdom)
- [France](https://apptail.io/app/jcsys-reference-Ighf/france)
- [Netherlands](https://apptail.io/app/jcsys-reference-Ighf/netherlands)
- [Switzerland](https://apptail.io/app/jcsys-reference-Ighf/switzerland)
- [Chile](https://apptail.io/app/jcsys-reference-Ighf/chile)
- [Czechia](https://apptail.io/app/jcsys-reference-Ighf/czechia)
- [Germany](https://apptail.io/app/jcsys-reference-Ighf/germany)
- [Denmark](https://apptail.io/app/jcsys-reference-Ighf/denmark)
- [Algeria](https://apptail.io/app/jcsys-reference-Ighf/algeria)
- [Egypt](https://apptail.io/app/jcsys-reference-Ighf/egypt)
- [Spain](https://apptail.io/app/jcsys-reference-Ighf/spain)
- [Finland](https://apptail.io/app/jcsys-reference-Ighf/finland)
- [Greece](https://apptail.io/app/jcsys-reference-Ighf/greece)
- [Hungary](https://apptail.io/app/jcsys-reference-Ighf/hungary)
- [Israel](https://apptail.io/app/jcsys-reference-Ighf/israel)
- [Italy](https://apptail.io/app/jcsys-reference-Ighf/italy)
- [Japan](https://apptail.io/app/jcsys-reference-Ighf/japan)
- [South Korea](https://apptail.io/app/jcsys-reference-Ighf/south-korea)
- [Malaysia](https://apptail.io/app/jcsys-reference-Ighf/malaysia)
- [Norway](https://apptail.io/app/jcsys-reference-Ighf/norway)
- [New Zealand](https://apptail.io/app/jcsys-reference-Ighf/new-zealand)
- [Poland](https://apptail.io/app/jcsys-reference-Ighf/poland)
- [Romania](https://apptail.io/app/jcsys-reference-Ighf/romania)
- [Saudi Arabia](https://apptail.io/app/jcsys-reference-Ighf/saudi-arabia)
- [Singapore](https://apptail.io/app/jcsys-reference-Ighf/singapore)
- [Türkiye](https://apptail.io/app/jcsys-reference-Ighf/turkey)
- [Taiwan](https://apptail.io/app/jcsys-reference-Ighf/taiwan)
- [South Africa](https://apptail.io/app/jcsys-reference-Ighf/south-africa)
- [Austria](https://apptail.io/app/jcsys-reference-Ighf/austria)
- [Australia](https://apptail.io/app/jcsys-reference-Ighf/australia)
- [Belarus](https://apptail.io/app/jcsys-reference-Ighf/belarus)
- [Canada](https://apptail.io/app/jcsys-reference-Ighf/canada)
- [United Arab Emirates](https://apptail.io/app/jcsys-reference-Ighf/united-arab-emirates)
- [Kuwait](https://apptail.io/app/jcsys-reference-Ighf/kuwait)

---

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