JREAP

<h2 id="purpose">Purpose</h2>
<p>JREAP was developed due to the need to communicate <a href="/facts/Data/AUBFN97o">data</a> over long distances without <a href="/facts/Degradation_(telecommunications)/90GMHHzg">degradation</a> to the message format or content. JREAP takes the message from the format it was originally formatted in and changes the protocol so that the message can be transmitted over <a href="/facts/BLOS/hTo90DRk">Beyond Line-of Sight</a> media.
</p><p>JREAP is the protocol and message structure for the transmission and reception of pre-formatted messages over communications media other than those for which these messages were designed.
</p><p>JREAP provides a foundation for Joint Range Extension (JRE) of <a href="/facts/Link_16/FFNNRHel">Link 16</a> and other <a href="/facts/Tactical_Data_Link/rU8ESYHG">tactical data links</a> to overcome the <a href="/facts/Line-of-sight_propagation/w4xfQd2o">line-of-sight</a> limitations of <a href="/facts/Radio/XFr909M2">radio</a> terminals such as the <a href="/facts/Joint_Tactical_Information_Distribution_System/FqaJ3FT2">Joint Tactical Information Distribution System</a> (JTIDS) and <a href="/facts/Multifunctional_Information_Distribution_System/R4aRGa4K">Multifunctional Information Distribution System</a> (MIDS), and extends coverage of these data links through the use of long-haul media.
</p>
<h2 id="versions">Versions</h2>
JREAP A
JREAP A uses an Announced Token Passing protocol for half-duplex communications. This protocol may be used when several terminals share the same JRE media and take turns transmitting or in a broadcast situation when one transmits and the rest receive. It is targeted to data rates down to 2400 bits per second on a serial data interface with a TSEC/KG-84A/KIV-7 or a compatible encryption device used for data security. It is designed for use with media such as: 25-kHz UHF TDMA/DAMA SATCOM, EHF Low Data Rate (LDR) Forced Mode Network Operations and 5 and 25 kHz UHF non-DAMA SATCOM.
JREAP B
JREAP B is a synchronous or asynchronous point-to-point mode of the JREAP. This mode is similar in design to the Half-Duplex Announced Token Passing protocol used by JREAP A. This mode can be used with SHF and EHF LDR point-to-point mode synchronous connections, STU-III operations via phone lines and other point-to-point media connections. This JREAP application presumes full-duplex data-transparent communication media.
JREAP C
JREAP C makes use of the <a href="/facts/Internet_Protocol/Qq6VeEal">Internet Protocol</a> (IP) in conjunction with either the <a href="/facts/User_Datagram_Protocol/dxLU0D6q">User Datagram Protocol</a> (UDP) or <a href="/facts/Transmission_Control_Protocol/WW4sPrt9">Transmission Control Protocol</a> (TCP). The IP suite is a standard set of protocols that is deployed worldwide in commercial as well as military networks. By using JREAP encapsulation over IP, JRE can be performed over IP-based networks<a class="footnote-ref" id="fnref:1" href="#fn:1"><sup>1</sup></a> that meet operational requirements for security, speed of service and so on.
<h2 id="see-also">See also</h2>
<ul><li><a href="/facts/Global_Information_Grid/5KK7ejPl">Global Information Grid</a></li>
<li><a href="/facts/Network-centric_warfare/6jxAR6Na">Network-centric warfare</a></li>
<li><a href="/facts/S-TADIL_J/LFzCSrzA">S-TADIL J</a> (<a href="/facts/TADIL-J/B1p1LCta">J-Series</a> messages over <a href="/facts/Communications_satellite/y5RXPMDT">satellite</a> links)</li>
<li><a href="/facts/STANAG_5602/jx92r4EF">SIMPLE</a> (<a href="/facts/TADIL-A/d1cn5QMJ">M-Series</a> and <a href="/facts/TADIL-J/B1p1LCta">J-Series</a> messages over IP-based networks)</li></ul>

<h2 id="references">References</h2>

<ol>
<li id="fn:1"><p>Davis, Steven; O'Gara, Mike. "Key tactical data link systems clear operational testing". CHIPS. Retrieved 4 October 2023. <a href="https://www.doncio.navy.mil/chips/ArticleDetails.aspx?ID=2779" target="_blank">https://www.doncio.navy.mil/chips/ArticleDetails.aspx?ID=2779</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li>
</ol>

JREAP open-in-new

JREAP