4 <li><a href="/projects/sbc/">Single-Board Microcontroller Applications</a></li>
5 <li><a href="/projects/lf/">LF: Low Frequency Operation</a></li>
7 <li><strong>Mainstreaming <a
8 href="/projects/ss/">spread
9 spectrum</a>.</strong> In 1998, ARRL petitioned the
10 FCC to liberalize the code sequences and include automatic power
11 control for powers above 1 watt. This petition may prove to be
12 controversial, as TAPR and other groups want to lower the SS
13 operating frequencies below 420 MHz--some as low as HF--yet
14 others feel SS should be banned. Bob Buaas and his group on the West
15 Coast continue to with their STA, which allows SS at 50 MHz and
16 higher. AMRAD members could join the STA and put some systems
19 <li><strong>Interference testing Part 15 SS devices.</strong> At a
20 TAPR meeting, there was some concern expressed about the
21 compatibility of Part 15 devices with Amateur Radio systems,
22 particularly at, but not limited to, 2390-2400 MHz. Part 15
23 proponents, on the other hand, are apprehensive about sharing the
24 band with amateurs. In this band and in 2401-2417 MHz, amateurs
25 are primary and Part 15 users can use the bands on a non-
26 interference basis. Nevertheless, it may be possible to
27 demonstrate that there is no problem or find ways of mitigating
28 any interference through a test program. I have been in contact
29 with Jim Lovette of Apple to run some tests and we talked about
30 the desirability of test groups on both the East and West
31 Coasts. There is willingness on both sides but nothing specific
32 has been done to date.</li>
34 <li><strong>Higher speed digital systems.</strong> This is one of
35 Terry's favorite saws. Where are the high speed packet modems and
36 radios? Dave Sumner questions why US hams are not doing more with
37 higher speeds; he cites S53MV's article in CQ ZRS on his 1.2288
38 Mbit/s 13-cm system.</li>
40 <li><strong>Utilization of <a
41 href="http://www.amrad.org/projects/microwave/">microwave
42 bands</a>.</strong> Because of
43 line-of-sight propagation in these bands, their popularization
44 requires an infrastructure or backbone. Otherwise, microwave and
45 millimetric frequencies will be used only for isolated short-range
46 links. There was a remark that AMRAD may not be in a good
47 position to develop microwaves. That may be true and there are
48 several microwave clubs that may be better able to do
49 it. Nevertheless, there may be a role for AMRAD. We could lose
50 these bands unless we come up with 24-hour uses over wide
51 geographic areas occupying large portions of the bandwidth
54 <li><strong>Multimedia systems</strong>, possibly a repeater in the
55 Washington area. At a recent PVRC meeting, I was talking with a
56 PVRC member who was pushing this concept. Sandy points out that
57 Metrovision has done mixed media for years. Nonetheless, theirs is
58 an analog system; some work could be done on a digital multimedia
59 system, possibly in cooperation with Metrovision.</li>
61 <li><strong>Developing an amateur beacon system capable of
62 contributing propagation data to the ITU.</strong> Amateurs have
63 an extensive array of beacons from HF through
64 microwaves. Unfortunately,their transmissions are received only on
65 a real-time basis and there is no attempt to automatically
66 receive, reduce and report the data to any scientific group such
67 as ITU-R Study Group 3 or URSI. IARU President Dick Baldwin has
68 recently reinstructed the IARU beacon working group to reorient
69 the beacon network into one that includes automatic reception and
70 reporting. The ITU has a transmit format that permits machine
71 reception. AMRAD could study that and recommend its adoption by
72 amateur beacons or come up with one that might be more suitable
73 for amateur use. We could also design any hardware and software
74 hams would need. Dick Barth showed interest in this project and
75 has asked me to supply him with the ITU documents so he can
76 prepare an article on the subject.</li>
78 <li><strong>Amateur systems for worldwide noise-measuring
79 campaign.</strong> ITU-R Study Group 1 wants to establish a
80 worldwide network for collecting noise level measurements. The
81 contention is that noise levels are rising (and limiting the use
82 of radio) but no one has definitive data. Hams could participate
83 in one way or another if someone like AMRAD figures out how.</li>
85 <li><strong>Participate in Mars Global Surveyor Relay
86 Experiment.</strong> See January 1996 QST, page 45 for an outline
89 <li><strong>Designing <a
90 href="http://www.amrad.org/projects/dsp/">DSP/software
91 radios</a>.</strong> The time is right
92 to do this. There are several guys at COMSAT Labs who are
93 interested in this project and should be willing to cooperate with
96 <li><strong>Application of wireless chip sets to amateur
97 systems.</strong> There are three generations of chip sets (5, 3
98 and now 1-volt) developed for cellular and other so-called
99 wireless applications. It could be a worthwhile project to gather
100 the specs, study them and decide how we could apply them to
101 Amateur Radio designs.</li>
103 <li><strong>Experimenting with digital voice</strong> such as APCO
104 Project 25. TIA did a lot of work picking the most effective
105 digital voice technique for new public safety radios. The one they
106 selected may or may not be best for Amateur Radio. The FCC rules
107 already permit digital voice, even on the HF bands. </li>
109 <li><strong>Develop very small <a
110 href="http://www.amrad.org/projects/space/">satellites</a>.</strong>
111 Mark Kanawati has ideas along these lines.</li>
113 <li><strong>Experiment with automatic link establishment
114 (ALE).</strong> There is now a Federal Standard. QST and QEX have
115 carried articles on this subject. We could either push for
116 adoption of this standard or develop our own.</li>
118 <li><strong>Develop path simulation software.</strong> This was only
119 for the deep pockets in years past but DSP and fast PCs make it
120 possible for hams to do path simulation. At the 1995 ARRL Digital
121 Communications Conference, there was a talk on what has been done
122 to date. We might want to get involved.</li>
124 <li><strong>Design some tech toys.</strong> This could be a project
125 having no other goal than having fun.</li>