uhf tacsat /dama multi-service tactics, techniques ... - UHF-Satcom.com

uhf tacsat /dama multi-service tactics, techniques ... - UHF-Satcom.com uhf tacsat /dama multi-service tactics, techniques ... - UHF-Satcom.com

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(1) Both -183 (baseline) and -183A terminals can use 25-kHz slave channels. (2) Only -183A terminals can use 5-kHz slave channels. New burst rates and forward are correction rates. (3) Set up and push-to-talk delays on 5-kHz slave channels are the same as on any 25-kHz DAMA channel. c. Consider slave channels a hybrid of DAMA with demand assigned single access (DASA) capability. DASA requires— (1) User tunes to DAMA home channel, requests timed DASA access. (2) Radio frequency switches to DASA channel for dedicated channel use. (3) Radio uses frequency switching technology. d. In each frame cycle— (1) Users tune to home channel for overhead. (a) CCOW. (b) RCCOW. (c) Link test. (d) Ranging. (e) No OW, ranging, or link data on slave channel. (2) Users frequency switch to slave channel for baseband communications on appropriate data slot(s). I-24

Figure I-16. Communications on 25-kHz DAMA Slave Channels I-25

(1) Both -183 (baseline) and -183A terminals can use 25-kHz slave channels.<br />

(2) Only -183A terminals can use 5-kHz slave channels. New burst rates and<br />

forward are correction rates.<br />

(3) Set up and push-to-talk delays on 5-kHz slave channels are the same as on<br />

any 25-kHz DAMA channel.<br />

c. Consider slave channels a hybrid of DAMA with demand assigned single access<br />

(DASA) capability. DASA requires—<br />

(1) User tunes to DAMA home channel, requests timed DASA access.<br />

(2) Radio frequency switches to DASA channel for dedicated channel use.<br />

(3) Radio uses frequency switching technology.<br />

d. In each frame cycle—<br />

(1) Users tune to home channel for overhead.<br />

(a) CCOW.<br />

(b) RCCOW.<br />

(c) Link test.<br />

(d) Ranging.<br />

(e) No OW, ranging, or link data on slave channel.<br />

(2) Users frequency switch to slave channel for baseband <strong>com</strong>munications on<br />

appropriate data slot(s).<br />

I-24

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