{"id":537,"date":"2014-02-05T05:23:35","date_gmt":"2014-02-05T05:23:35","guid":{"rendered":"http:\/\/www.prescient.com.sg\/?page_id=537"},"modified":"2014-02-20T09:34:02","modified_gmt":"2014-02-20T09:34:02","slug":"networked-digital-datalink-specifications","status":"publish","type":"page","link":"https:\/\/www.prescient.com.sg\/?page_id=537","title":{"rendered":"Networked Digital Datalink – Specifications"},"content":{"rendered":"
\n
\"NDD\"<\/dt>\n
Networked Digital Datalink Radio<\/dd>\n<\/dl>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Physical Dimensions<\/span> <\/strong><\/span><\/td>\n<\/tr>\n
Size<\/strong><\/td>\n180 (l) x 85 (w) x 70 (d) mm
\n7.08 (l) x 3.35 (w) x 2.76 (d) in<\/td>\n<\/tr>\n
Weight<\/strong><\/td>\n1800 g (64 oz)<\/td>\n<\/tr>\n
Operating Modes<\/span><\/strong> <\/span><\/td>\n<\/tr>\n
Transmission<\/strong><\/td>\nFrequency Hopping Spread Spectrum (FHSS),
\nDirect Sequence Spread Spectrum (DSSS)<\/td>\n<\/tr>\n
Access Control<\/strong><\/td>\nTime Division Multiple Access (TDMA),
\nSelf-Organising TDMA, 500 slots<\/td>\n<\/tr>\n
Interfaces<\/span><\/strong><\/span><\/td>\n<\/tr>\n
Data & Control<\/strong><\/td>\nIEEE 802.3 Ethernet (Data & Control)<\/td>\n<\/tr>\n
Power Supply<\/strong><\/td>\n28V DC<\/td>\n<\/tr>\n
Synchronization<\/strong><\/td>\nTTL Pulse<\/td>\n<\/tr>\n
Design Requirements<\/strong><\/td>\nMIL-STD 704E<\/td>\n<\/tr>\n
Connectors<\/span> <\/strong><\/span><\/td>\n<\/tr>\n
Ethernet<\/strong><\/td>\nMIL-C 38999 or MIL-C26482<\/td>\n<\/tr>\n
Power & TTL<\/strong><\/td>\nMIL-C 38999<\/td>\n<\/tr>\n
Radio Frequency<\/strong><\/td>\nSMA<\/td>\n<\/tr>\n
Tunable Range<\/span> <\/strong><\/span><\/td>\n<\/tr>\n
S-Band Version<\/strong><\/td>\n300 MHz within 2.185 GHz - 2.485 GHz in
\n0.5 MHz steps (Extended NATO S-Band)<\/td>\n<\/tr>\n
L-Band Version<\/strong><\/td>\n300 MHz within 0.39 GHz -1.55 GHz in 0.5
\nMHz steps (Customisable)<\/td>\n<\/tr>\n
Note<\/strong><\/td>\nSolutions are available for operation in other
\nfrequency bands such as HF, VHF and UHF<\/td>\n<\/tr>\n
Transmitter Section<\/span><\/strong><\/span><\/td>\n<\/tr>\n
RF Power output <\/strong><\/td>\nMaximum 23W \u00b110%
\nProgrammable to \u00bd, \u00bc and 1W<\/td>\n<\/tr>\n
Wave shaping scheme<\/strong><\/td>\nDirect Digital Synthesis (DDS)<\/td>\n<\/tr>\n
Range<\/strong><\/td>\n70 nautical miles A\/A (130km\/80 miles)
\nLOS (Max), without relay<\/td>\n<\/tr>\n
Frequency Switching<\/strong><\/td>\nDigital Control<\/td>\n<\/tr>\n
Data Rate<\/strong><\/td>\n1 Mbit\/sec (nominal)
\n5 Mbit\/sec (max)<\/td>\n<\/tr>\n
Receiver Section<\/span><\/strong><\/span><\/td>\n<\/tr>\n
Receiver Sensitivity<\/strong><\/td>\n<-94.5 dBm<\/td>\n<\/tr>\n
Receiver Analog<\/strong>
\nBandwidth<\/strong><\/td>\n		5 MHz<\/td>\n<\/tr>\n
Receiver Architecture <\/strong><\/td>\nSoftware Defined Radio<\/td>\n<\/tr>\n
Tuning Method<\/strong><\/td>\nDigital PLL tuning<\/td>\n<\/tr>\n
Receiver maximum<\/strong>
\nnon- destructive input<\/strong>
\npower<\/strong><\/td>\n		<15 dBm<\/td>\n<\/tr>\n
Tuning Step<\/strong><\/td>\n0.5 MHz<\/td>\n<\/tr>\n
Supported Modulation<\/span><\/strong><\/span><\/td>\n<\/tr>\n
Digital Modulation<\/strong><\/td>\nFrequency shift Keying (FSK)
\nGaussian Minimum Shift Keying (GMSK)
\n(Differential)
\nQuadrate Phase Shift Keying (QPSK)
\nBinary Phase Shift Keying (BPSK\/DBPSK)<\/td>\n<\/tr>\n
Analog Modulation<\/strong><\/td>\nAM (Amplitude Modulation)
\nFM (Frequency Modulation)<\/td>\n<\/tr>\n
ECCM Features<\/span><\/strong><\/span><\/td>\n<\/tr>\n
<\/td>\nFrequency Hopping (configurable schemes),
\nDirect Sequence Spread Spectrum (DSSS)<\/td>\n<\/tr>\n
Others<\/span><\/strong><\/span><\/td>\n<\/tr>\n
Error Correction<\/strong><\/td>\nTurbo Coding<\/td>\n<\/tr>\n
Network Capacity<\/strong><\/td>\nDependent on update rate<\/td>\n<\/tr>\n
Environmental<\/span><\/strong><\/span><\/td>\n<\/tr>\n
EMI-EMC<\/strong><\/td>\nMIL-STD 461 E<\/td>\n<\/tr>\n
Shock & Vibration<\/strong><\/td>\nMIL-STD 810 E<\/td>\n<\/tr>\n
<<Networked Digital Datalink<\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n
\n

\ue0d4\ue0d4<\/span><\/a>\ue0d4<\/span><\/a>\ue0ae<\/span><\/a><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Networked Digital Datalink Radio Physical Dimensions Size 180 (l) x 85 (w) x 70 (d) mm 7.08 (l) x 3.35 (w) x 2.76 (d) in Weight 1800 g (64 oz) Operating Modes Transmission Frequency Hopping Spread Spectrum (FHSS), Direct Sequence Spread Spectrum (DSSS) Access Control Time Division Multiple Access (TDMA), Self-Organising TDMA, 500 slots Interfaces ...continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":742,"parent":88,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/full-width.php","meta":{"footnotes":""},"class_list":["post-537","page","type-page","status-publish","has-post-thumbnail","hentry","has-thumbnail"],"_links":{"self":[{"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/pages\/537","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=537"}],"version-history":[{"count":27,"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/pages\/537\/revisions"}],"predecessor-version":[{"id":864,"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/pages\/537\/revisions\/864"}],"up":[{"embeddable":true,"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/pages\/88"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=\/wp\/v2\/media\/742"}],"wp:attachment":[{"href":"https:\/\/www.prescient.com.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}