From 8e468aa28dc237bbd418d1a4225e52ce78247108 Mon Sep 17 00:00:00 2001 From: drowe67 Date: Fri, 23 Oct 2015 05:14:10 +0000 Subject: [PATCH] added soem more notes and iterated radio block diagram git-svn-id: https://svn.code.sf.net/p/freetel/code@2467 01035d8c-6547-0410-b346-abe4f91aad63 --- sm2000/doc/sm201- Block Diagram v0.1.ppt | Bin 110592 -> 108032 bytes sm2000/doc/sm202 Task List.txt | 33 +++++++++++++++++++---- 2 files changed, 28 insertions(+), 5 deletions(-) diff --git a/sm2000/doc/sm201- Block Diagram v0.1.ppt b/sm2000/doc/sm201- Block Diagram v0.1.ppt index ed9245f3f6dd1921057fb15d25f0b33a35630bf3..8e4ac428c0cc2eae82b11f2e09a2b4653a4a14f6 100644 GIT binary patch delta 2061 zcmZuyYfuwc6ux(Nv%3kq2?>EDKqNxI09wJ?$Dp;M^q~bsh1ObpfVLH^h}H+TifN@I zqZ9~d1Vu$;tm6O*xW0;xuWIXzwzX4brZb4t{z08u>{zS*fS%n%C!_sw_TGEGbM86k zyXPd{KHhtouSua-I#XX~?Sn%@L-PnB^HCO{5-zW3F~6wc;Eu98e>oP!s`$ zK?wmW+h~&FkdtL@i|rZZP;Vm4Kr^l`A`YmyK^5GX2s@Cb2d^VpDU5Yc7>t!D z3n6hEA=_<-eQ`x>kLfqqeJ&h4ZVy=E?XcKg#C3(vw5vJ6ZMTQ=FvD$wr1&DvC}vSj z-4=fnBoF#06mfNyfU?IaLdu99s7SPf+f&3E#dpBx`IqX^-wt~c3)wo0stJdaE)kNF zdKiNU#b=`xcd}K_cI#MW+}J-^+^kcQUp>tTKM0S6$HIHcy|hFV`ji?OYQM{_r@4dJoM=ktCwv)j4rFr(xP z_M%X(Tr1I0mXSv**O%Y1u*(gjluPC94C@S?s;u9HP#JAizN*;HGW$H>s+<{nF~Lvn z8Cx6rU(I=PDF#f{XXQ?SfJNeCbsELF-cqic(Cn0T=t35EE+OU zhM~RW{8Z=|IaYu7?p?Bxn$2c7J0S)pcJZ*F!6i2elC(zF>rF%+cmSy*!l0?)0hEHJ zc59i?rn|x2;%&;Po!AU%Yb7c`eOC`@(q?TR!p^QS~Tq6-v;|TC4BP_n%9q9$h(+R%p%@I zxPfMz3kxy$n-jTHJ9IJ@RH_w}k%f(1X#;5f|ORU@|Q9ES3c2tmm{AW~)w1NR#z)-EzY*BjaL2HhsXr_T^nhBiaz zq_C_E%pyk%wG@LECF{3gMVt_wm#;rByJA|r%V>}qy5*2WDK1)*jul;qBK+S3ZA3Hp<;Y_ zh%6QGu(z`cxmzO>qo19opq`6@d(A#x9mS{P)(@^K3HlCkzRkMIJm=wLWj^LDoCzP4tB`(G;GXf12i|+*`lk&3xww`aHEAc zV9{@#9R9pT{1XdosL|#pyaY!{@HbRGZ?^2P_)7?`e}u+PoKAIa)f%cGh*S?u*;kD- zdV~yT!UgDa+M#c>L}OueyA1|#L37Pt-sCu6$@F8> qIohc|%Fyvtul~FLg2scs{1Zow^kEb8u%rI*LHZe;TfeHEZut*#pHY$k delta 2440 zcmb_eYfKbZ6ux(6c4uap-DQ_qb{Bal0`gE?l;DfB^-;iv0*WO{6h)~GtD&f|5-YH% zZGBbPJt96)DyUVW;KC5n3tQUjqXJ$|hFOF+0vHKB1Vi?Z#OF zjiT{r44MI`(N5D8r!mFIZL{BCp|49;=0`XvYqXD0)(m@{;V3`Bs!iXDnoGH&(80Id z7<}7iAAGwoJcmwNDyq?cV+VKf;0DA@BrXBx&4lTX#^-P%^s6`yiHHL;Vf#Cw);U@! zk9AVxIh?iT$6QhvVGLgU>)Uvqls?TEaZYW*#@~W0!&QEfwf6KXu$2_ zlHF{RRmC1Lq5vm4BbB2mvdDg`W0Z^OzpyxXS2;QHBEw(eAMua*B4zcIBs1GDv??vH zSw#N0AW24PsdBckkwM=j%B-RZdX`u|QMS&%NBJ}QXnTx(6;zkhvU_bKl!20K7IqJJ z3$9nzv0w2UlzA(3lx2;nO6kgbR(7Rfw37ecNrsIMovF}G2-VVKinw_<%iJ9gt=neD zO5^<8a`-G5P$yu?9&6GwI6T~|jdz|t56>mdXBrsW7;QH}l70I5k1XDF_ofsrf8a`GmrB5#wG zTGUu5t+T^H43(EJP!U?{YvH?{R!D8E!2oLF7+{ev5^|2+(K27Z%L;dQ*8Hp13tkDA zZrJ7JlDP4DrNn2YMgtN`41^TYkp3F*?pXqTkRWUfDKsyz{3q|K{Wi$mrS(B+~Q zvY@B@2ppU#F=iPG(%sHF!9xwqdO_{=b}VKZ^`Em)sB5W4CG4U}++zLnO0YoV$6ij= z0l1o@#XRyV$-tb)L7mSA%bUMZE2LKV{CGXzu6tt9$#zI|+(O;2|^e!IicS)nT7cW35%8sA~Uup|bv+9X}5?{0?XVupkU^vbXhx3#qwe9br(EUKWvU z7$#qpa}3W{J4!p35m|=$mN08}5S%y!zi*mj4u+F7I6lj8Dx^m8!|Maukc>j`;C=Og zg!C7~ipnu~U+E!s#W?2^!y03iak8YQQyH)#1;(~596d>T$2iCAM-K*k5k?0IYvYix z)GP0qu>PQ92Ainv65Pa8KarxS!VN(R80&|#4L8Hf?0(AfFvp?ql1o;)w{%k_@6!rh zYQ+dbO!Ekdz`CVQLVCLh*>@Jb$)Dy(^?~VMFcMZBmYs*Y=Za2W=ylL9l2WJvOBXk-ZlhcO E21_fZcmMzZ diff --git a/sm2000/doc/sm202 Task List.txt b/sm2000/doc/sm202 Task List.txt index 44ea1c89..a87fa87b 100644 --- a/sm2000/doc/sm202 Task List.txt +++ b/sm2000/doc/sm202 Task List.txt @@ -2,6 +2,8 @@ [ ] Demonstrate TDMA repeater [ ] superior weak signal performance (-135dBm) [ ] diversity to handle multipath + + TDMA diversity, switch rx LO quickly? + + demo overcoming large fades? [ ] wideband audio [ ] high bit rate data [ ] low cost @@ -13,7 +15,11 @@ [ ] Block diagram [ ] Uses cases in paragraph form [ ] Gain, NF, IP3 budget spreadsheet - [ ] Power supply budget spreadsheet + [ ] Power budget spreadsheet + [ ] Current per active device + [ ] Power dissiapation per active device + [ ] Resistor power dissiapation per active device + + RF bias currents can be high [ ] RF Specs + these are targets, main goals are functional, leave @@ -35,6 +41,7 @@ [ ] General purpose VHF transistors [X] 1st mixer: ADE-1 [ ] RF switches + + Brady has suggest AS17992LF [ ] 1W PA transistor [ ] LCD [ ] encoder @@ -51,19 +58,22 @@ [ ] Open Source VHF DV radio [ ] Low MDS [ ] TDMA Repeater - [ ] Setting frequencu and mode + [ ] Diversity rx + + use 2nd output from 5351 + [ ] Setting frequency and mode + how to select frequency? What combinations of buttons and encoder. + do we need a full 0-9 keyboard? + should we use a PC or remote device as primary input device + does position of buttons/encoders/style of buttons make it easy to use, e.g. set a frequency - [ ] Chnaging waveform + [ ] Changing waveform [ ] Software Modules [ ] VHF Modem [ ] VHF protocol [ ] TDMA framework around modem, burst modem + [ ] diversity [ ] New Drivers [ ] LCD [ ] Encoder @@ -85,7 +95,20 @@ [ ] coupled res in shielded box or cots part? [ ] how to swithc mixer/xtal filter [ ] what else wcould er use instead of NE602? + [ ] ADC perf + + SFDR etc, which is why we run it as 100kHz + + if not good enough we'll need an external ADC + + test against two tone, MDS and ACR + [ ] Power dissipation of active devices and resistors + + easy to exceed limits in SM resistors and transistors + + RF drivers draw lots of current + [ ] termination of mixer + [ ] do we need a way to bypass the LNA? + + or is it OK even with strong signals [ ] PCB layout - [ ] where do we put shilds - [ ] how to fabricate? + [ ] shields + [ ] where do we put sheilds + [ ] how to fabricate? + [ ] foot prints + -- 2.25.1