Some info on the cambium PTP 550 Data Rates<\/p>\n
\u201cDownlink Max Rate\u201d specifies the maximum downlink MCS value that the Rate Adapt algorithm will choose.
\nMCS values range for data from MCS 9 to MCS 1 for one or two Spatial Streams (Single Stream and Dual Stream respectively). A higher MCS value (e.g. MCS 9) carries more data, but requires more link budget \/ stronger radio signal. Thus, MCS 9 provides the most data, but the least robust link (i.e. greatest chance data can be lost) and MCS 1 provides the least data, but the most robust link (i.e. least change data can be lost).
\nDS MCS provide two streams of independent data over the two transmit chains while SS MCS provide one stream of data over both transmit chains.
\nSetting \u201cUplink Max Rate\u201d to a DS MCS 9 \u2013 DS MCS 1 value will allow this MCS and all lower dual stream MCS values to be used along with all similar or lower single stream MCS values. For example, choosing DS MCS 8 means that DS MCS 8 \u2013 DS MCS 1 and SS MCS 8 \u2013 SS MCS 1 will be used in the Rate Adapt algorithm. Setting \u201cUplink Max Rate\u201d to an SS MCS 7 \u2013 SS MCS 1 value will allow this and all lower single stream MCS values.<\/p>\n
Rates Highest to lowest
\nDS MCS9 – 256-QAM 5\/6
\nDS MCS8 – 256-QAM 3\/4
\nDS MCS7 – 64-QAM 5\/6
\nDS MCS6 – 64-QAM 3\/4
\nDS MCS5 – 64-QAM 2\/3
\nDS MCS4 – 16-QAM 3\/4
\nDS MCS3 – 16-QAM 3\/4
\nDS MCS2 – QPSK 3\/4
\nDS MCS1 – QPSK 1\/2
\nSS MCS9 – 256-QAM 5\/6
\nSS MCS8 – 256-QAM 3\/4
\nSS MCS7 – 64-QAM 5\/6
\nSS MCS6 – 64-QAM 3\/4
\nSS MCS5 – 64 QAM 2\/3
\nSS MCS4 – 16-QAM-3\/4
\nSS MCS3 – 16-QAM 1\/2
\nSS MCS2- QPSk3\/4
\nSS MCS1 – QPSK 1\/2<\/p>\n
MCS\\Rx Sensitivity\u00a0 20 MHz\u00a0 \u00a0 \u00a0 \u00a040 MHz\u00a0 \u00a0 \u00a0 \u00a080 MHz
\nLowest MCS\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 -90 dBm\u00a0 \u00a0 \u00a0-87 dBm\u00a0 \u00a0 \u00a0 \u00a0-83 dBm
\nHighest MCS .\u00a0 \u00a0 \u00a0 \u00a0-66 dBm\u00a0 \u00a0 \u00a0-62 dBm\u00a0 \u00a0 \u00a0 \u00a0 -59 dBm<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Some info on the cambium PTP 550 Data Rates \u201cDownlink Max Rate\u201d specifies the maximum downlink MCS value that the Rate Adapt algorithm will choose. MCS values range for data from MCS 9 to MCS 1 for one or two Spatial Streams (Single Stream and Dual Stream respectively). A higher MCS value (e.g. MCS 9) […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[118],"tags":[622,623,621],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p6VLMf-DB","jetpack-related-posts":[{"id":2697,"url":"https:\/\/www.mtin.net\/blog\/the-addition-of-rf-elements-horns-to-a-ptp550-link\/","url_meta":{"origin":2455,"position":0},"title":"The addition of RF elements horns to a PTP550 link","author":"j2sw","date":"December 21, 2018","format":false,"excerpt":"In a previous series of articles we talked about a new Cambium 550 link and the noise challenges we had.\u00a0 You can start your reading in Part one and Part two. 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