1 Turn-On Log for TeleMetrum boards
4 - First production run received from Advanced Circuits, 54 units of v1.0.
6 To be complete, each board needs:
8 - add GPS patch antenna
9 - add customer choice of pyro connector
10 - remove C38 (wrong value, optional)
11 - replace C36 with 1uF (better value)
14 persistent crc error problems communicating over UHF link
17 solder bridge across C3, caused USB enumeration failure. removed the
18 short and it works ok.
21 GPS sensitivity seems very low .. ok with off-board amplified patch
25 missing J9, installed from my parts stock.
28 kapton tape left over baro sensor port, removed with tweezers.
34 U4 installed 180 degrees rotated, thus 5V supply not working, accel
35 gave weird values. Removed and replaced with fresh part.
47 GPS sensitivity seems low .. ok with off-board amplified patch
48 after it has locked once, re-locks just fine with onboard patch
56 R8 appears damaged, seemed to work, but removed and replaced anyway
58 persistent invalid crcs
98 I really don't understand the missing J9 connectors. The empty
99 parts baggie that was in the package of stuff sent to me says 56
100 were purchased, and we only have 54 boards. Where'd they go? And
101 can someone explain how a big red connector that's so visually
102 obvious could be missed in QA?
104 The one solder bridge and one damaged 0402 resistor found so far
105 may just be par for the course at this price/service level?
108 - received Taoglas AP.17A.07.0040A amplified patches. Installed one on
109 sn 208 and confirmed functionality and performance. I still see sn 208
110 exhibiting a problem where sometimes it emits 100% CRC errors over the UHF
111 link and other times it's fine. Keep this one for myself, don't ship it!
114 + remove kapton on baro
125 Order #123677903482987
128 + remove kapton on baro
134 + replace accel with 100g part
140 Order #335810048524542