= Oscilloscope =
<<TableOfContents(4)>>
== What do we need ? ==

 * Cheap scopes for casual use. 10 to 20 scopes ?
  * About 100MHz BW
  * 4Ch
 * Middle range scopes. 4 scopes ?
  * 200 to 500MHz BW
 * High performance scopes. 2 ?
  * GHz class
  * Logic analyzer option (Mixed Signal Oscilloscope)
 * Isolated input scopes. x2
 * Active high impedance probes (FET) x 4 ?

Probably it is a good idea to buy all scopes from one company.
Then we can use the same active probes for all scopes.
Isolated input scopes cannot used with active probes. Therefore,
this scope can be from a different company. Actually only Tektronix
sells isolated input scopes.

== Candidates ==

Note: Tektronix prices are discounted prices, whereas Agilent prices are catalog prices.
Agilent will always give us 15% academic discount.

=== Cheap ones ===

==== Agilent DSOX2004A ====
 * About 219,625 JPY.
 * BW: 70MHz (Upgradeable, up to 200MHz) (1Gs/sec)
 * Large memory (100K points)
 * Large display.
 * Optionally, a function generator can be added.
 
==== Tektronix TDS 1000C-EDU ====
 * 96,600JPY for 100MHz
 * BW: 100MHz (500Ms/sec)
 * Very cheap
 * Only 2Ch available
 * Memory 2.5kpts

==== Tektronix TDS 2014C ====
 * 179,200JPY for 100MHz/4Ch
 * BW: 100MHz (2Gs/sec)
 * 4Ch
 * Memory 2.5kpts

=== Middle Range Scopes ===

==== Agilent DSOX3054A ====
 * 1,223,494JPY
 * BW: 500MHz
 * 4Ch
 * Memory 2Mpts (Maximum 4Mpts)
 * Optionally, a function generator can be added.

==== Tektronix DPS3054 ====
 * 1,080,000JPY
 * BW: 500MHz
 * 4Ch
 * Memory 5Mpts 

=== High performance scopes ===

==== Agilent MSO9254A ====
 * 3,780,303JPY
 * 2.5GHz (20Gs/sec)
 * 4Ch analog/16Ch digital
 * Memory 20Mpts (Max 1Gpts)

==== Tektronix MSO5204 ====
 * 2,830,500JPY
 * 2GHz (10Gs/sec)
 * 4Ch analog/16 Ch digital
 * Memory 25Mpts (Max 250Mpts)

=== Isolate Input Scopes ===
==== Tektronix TPS2024B ====
 * 413,100JPY
 * 200MHz (2Gs/sec)
 * Battery Powered