3 ms·

ikr, is it really that easy to mess with a radar altimeter? (hides signal generator and RF amp behind my back)

by NavinF 6y ago

jacquesm 6y ago
From this comment I deduce you have been working out. You must have at least a 19" wide back then, I suspect that a good ramp generator and an amp for that kind of frequency range with sufficient power and bandwidth is going to be a rackmounted device if not multiple of those. This baby from Rohde & Schwarz https://cdn.rohde-schwarz.com/pws/application/cards/3607_4464/amplifiers-accelerator-physics_ac_3607-4464-92_01a_w1300_hX.png https://cdn.rohde-schwarz.com/pws/application/cards/3607_446... should do nicely.
- jameshart 6y ago
  So 5G rollout is going to put one of those on every street corner?
  - jacquesm 6y ago
    Those little boxes at the bases of antennae for cell phone towers are quite full of gear. Nothing that massive but a single rack with various bits and pieces (and batteries!) is the norm. https://www.extremetech.com/wp-content/uploads/2013/06/sprintltecellsite01.jpg https://www.extremetech.com/wp-content/uploads/2013/06/sprin... Look at all those Samsung goodies.
    - DaniloDias 6y ago
      Pic is from 2013. Image appears to have a sprint watermark. Looks like a base station controller (or whatever the cdma equivalent is). I don’t see the Samsung branding. Not aware of them as a major appliance vendor for cell sites.
      - jacquesm 6y ago
        Yes, so what? This is typical of what a base station looks like inside, whether or not it is current isn't really all that important, the gear gets a bit smaller every generation but it's not as though it suddenly becomes pocket size. As for you not seeing the Samsung branding, you can take my word for it or you can look up some of type numbers visible. Your lack of knowledge about what Samsung offers doesn't really matter.
        DaniloDias 6y ago
        Sorry- not attacking, just observing.
- NavinF 6y ago
  Google says 120W for the largest 5G MIMO arrays. 50 dBm is nothing crazy for a benchtop unit.

ikr, is it really that easy to mess with a radar altimeter? (hides signal generator and RF amp behind my back)

by NavinF 6y ago

ikr, is it really that easy to mess with a radar altimeter? (hides signal generator and RF amp behind my back)

From this comment I deduce you have been working out. You must have at least a 19" wide back then, I suspect that a good ramp generator and an amp for that kind of frequency range with sufficient power and bandwidth is going to be a rackmounted device if not multiple of those. This baby from Rohde & Schwarz https://cdn.rohde-schwarz.com/pws/application/cards/3607_4464/amplifiers-accelerator-physics_ac_3607-4464-92_01a_w1300_hX.png https://cdn.rohde-schwarz.com/pws/application/cards/3607_446... should do nicely.

jameshart 6y ago
So 5G rollout is going to put one of those on every street corner?
- jacquesm 6y ago
  Those little boxes at the bases of antennae for cell phone towers are quite full of gear. Nothing that massive but a single rack with various bits and pieces (and batteries!) is the norm. https://www.extremetech.com/wp-content/uploads/2013/06/sprintltecellsite01.jpg https://www.extremetech.com/wp-content/uploads/2013/06/sprin... Look at all those Samsung goodies.
  - DaniloDias 6y ago
    Pic is from 2013. Image appears to have a sprint watermark. Looks like a base station controller (or whatever the cdma equivalent is). I don’t see the Samsung branding. Not aware of them as a major appliance vendor for cell sites.
    - jacquesm 6y ago
      Yes, so what? This is typical of what a base station looks like inside, whether or not it is current isn't really all that important, the gear gets a bit smaller every generation but it's not as though it suddenly becomes pocket size. As for you not seeing the Samsung branding, you can take my word for it or you can look up some of type numbers visible. Your lack of knowledge about what Samsung offers doesn't really matter.
      - DaniloDias 6y ago
        Sorry- not attacking, just observing.
NavinF 6y ago
Google says 120W for the largest 5G MIMO arrays. 50 dBm is nothing crazy for a benchtop unit.