Great link Sgt Wookie. I served in the AF and it seems that the Navy always had better references to electronics.
Seems about right.As I posted in the other thread, one solution is:
Rich (BB code):
It = 0.1 Amperes (declared) Junction between R4 and R5 is now declared as node N1 Junction between R2 and R3 is now declared as node N2 Vt = 5 Volts (known; given in problem statement) Rt = Vt/It (50 Ohms) VN2N1 = 1.35 (V(N2)-V(N1), known; given as 1.35V in problem statement, given a name for calculation purposes.) R3R4pct = VN2N1/Vt (27%; calculate percent of total) RR3R4 = Rt * R3R4pct (R3+R4 = 13.5 total resistance) R6 = RANDOM(Rt-RR3R4) (R6 is a random number between 0 and 36.5 inclusive) R5 = RANDOM(Rt-(RR3R4+R6)) (R5 is a random number between 0 and the sum of R6, R4, and R3) R2 = RANDOM(Rt-(RR3R4+R5+R6)) (R2 is a random number between 0 and the sum of R6, R5, R4, and R3) R1 = Rt - (R2+RR3R4+R5+R6) (R1 is the remaining resistance, if any) R4 = RANDOM(RR3R4) (R4 is a random number between 0 and RR3R4) R3 = RR3R4 - R4 (R3 is whatever's left of RR3R4 after R4)
IT = 1mA RT = V / IT = 5 / 1 exp -03 = ~5K R3 & R4 series combined = (VR3 / V) X RT = (1.350 / 5) x 5000 = 1.35KΩ R3 = 1KΩ R4 = 350Ω R1 & R2 series combined = RT - (R3 + R4) / 2 = 5000 - 1350 = 3650 / 2 = 1825Ω R1 = (R1 & R2 series combined / 2) = 1825 / 2 = 912.5Ω R2 = (R1 & R2 series combined / 2) = 1825Ω / 2 = 912.5Ω Therefore ... R5 & R6 series combined = RT - (R1 + R2 + R3 + R4) = 5000 - 3175 = 1825Ω R5 = (R5 & R6 series combined / 2) = 1825 / 2 = 912.5Ω R6 = (R5 & R6 series combined / 2) = 1825 / 2 = 912.5Ω ----------------------- R1, R2, R5 & R6 = 912.5Ω R3 = 1K R4 = 350Ω
Do you mean "Jobs Within the Navy that are related to electronics"?, There is an MOS list somewhere, but it is a huge list. Especially the newer ships that are crewed smaller, but have doubled their electronics capability to make up the difference.
The navy has really cut back on the electronics training. I never saw the NEETS modules until after I got out of school and someone on the sub gave them to me. When I was in, my chief (was in the navy for 20 years before I joined) said that when he went through training, they actually trained him in electronics. He would always complain about that, that the navy wasn't training their guys and now the burden was on him to train. I made it my whole way through the navy without knowing what an opamp is. All the troubleshooting was board-level only. We would swap boards out of racks (everything has an identical backup system) until the problem moved, and when it moved, we knew the board was bad, and we would have a new board expedited to replace spares; We had duplicates of all the boards on the sub. but we never troubleshoot the boards to component level. there were no components onboard to replace them with, or test equipment to troubleshoot with; well, there was an oscilloscope that nobody knew how to use, and a simpson analog meter. The only time they came out of the cabinets was for annual PMs on them.
I joined ten years before your chief did, and went through A-schools at NAS Memphis, in Millington, TN. At that point in time, most Navy/Marine aviation-related A-schools were located at both NAS Memphis and NAS Pensacola, FL (consolidated at NAS Pensacola in the 90's).The navy has really cut back on the electronics training. I never saw the NEETS modules until after I got out of school and someone on the sub gave them to me. When I was in, my chief (was in the navy for 20 years before I joined) said that when he went through training, they actually trained him in electronics.
You were OMA level (organizational maintenance activity); one usually didn't get to open the black boxes until IMA level (intermediate maintenance activity). It was a bit different working on Vietnam-era stuff.He would always complain about that, that the Navy wasn't training their guys and now the burden was on him to train. I made it my whole way through the Navy without knowing what an opamp is. All the troubleshooting was board-level only.
Ye Olde 'shotgun' method.We would swap boards out of racks (everything has an identical backup system) until the problem moved, and when it moved, we knew the board was bad...
The only time we had duplicates of all the radar package boards at the squadron area is if we had one aircraft that was "hard down" for something, a "hangar queen". It wound up having a zillion MAFs (did you still have the form 666?) cut against all of the stuff we'd cannibalized from it.... and we would have a new board expedited to replace spares; We had duplicates of all the boards on the sub.
It was very different with the old radars we worked on. We may not have opened up the boxes, but we had to know how they worked inside in order to effectively troubleshoot them. "Shotgunning" would often introduce more problems than it fixed with those analog systems.... but we never troubleshoot the boards to component level. there were no components onboard to replace them with, or test equipment to troubleshoot with; well, there was an oscilloscope that nobody knew how to use, and a simpson analog meter. The only time they came out of the cabinets was for annual PMs on them.
For some reason, I found that quite funny.The training I got (joined in '04) for electronics was 3-5 weeks of sitting in front of a PC, clicking "next".
When I went through, it was using all printed materials, and the course was also self-paced. There was a senior NCO available (usually a CPO) if you got "stuck" on something - and they usually knew what they were talking about. You would go through a module, taking quizzes along the way and turning them in. If you were not progressing quickly enough, you would get a visit by above mentioned senior NCO to find out WTF was your malfunction.The PC had some kind of "prototype" board attached to it that you would snap sample cards into. the computer would send signals to the card and you had to use a multimeter to take measurements and enter into the PC to see if you measured right. if you had a question, there was an "overseer" (not instructor) who also didn't know anything about electronics who could "help". So, about 4 weeks of measuring resistor voltage drops and then 4 weeks of "tactical Network Computer Operator" class - basically a condensed A+ cert class also taught by PC.
AFTA (Advanced First Term Avionics) was taught in a classroom, and it was hands-on with actual radar systems in test racks. They weren't the real things we were going to be working on eventually, but they were functional (except the waveguide was rigged to a dummy load and could not be switched to the antenna). We'd spend maybe 3 hours in lecture, an hour in practical, break for chow, and go back for another 4 hours lecture.then the rest of my 1.5 years of Navy school was focused on operations - tracking targets with the fire control system - and that they actually taught well.
The Navy had to figure out how to train people effectively a long time ago. They know they only have most of their manpower for a few years; in order to remain an effective fighting force, they have to get people trained and into their jobs quickly. It costs a lot of money to train people, and while they're in training, they aren't available for anything else.In retrospect, I guess they knew exactly what they needed to teach me, because we never wound up stranded with a bum system and I was pretty good at tracking targets. They probably pay more attention to the electronics training for guys who work in the repair shops, and the surface fleet electronics techs. On surface ships, they have clear cut operators and maintainers. on subs, you have to be both, so jack of two trades, master of neither.
It took some getting used to ... but things improved enormously after I joined an all-volunteer Marine Drum & Bugle Corps we had on base there. It wasn't long afterwards that all the D&BC participants were moved into the newest accommodations on base; we even had a beer machine in the barracks on the 1st floor (stateside Marine barracks simply didn't have beer machines, but this was a Navy base, and the 1st floor was Sailors).Sounds like you had a wonderful time Sgt.
Veterans who served in ground combat very seldom share what they experienced with anyone other than Veterans who went through similar experiences. They usually speak in hushed tones, away from the others - and if a non-ground-combat Veteran approaches, they will change the subject, or simply remain silent until they are again alone.My grandfathers would never really talk to me about the war. My mother's father went a bit bananas if you talked to him about politics.
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