{{tag>review}} {{tag>english}}
===== What else do I need? =====
==== Tools and Test Equipment ====

  * Soldering station with exchangable soldering tips and possibility to set the soldering temperature
  * One fine soldering tip (0.8mm) and one large chisel type soldering tip (5mm) Lötspitze. Short tips are preferable, they conduct heat much better.
  * Desoldering wick
  * fine solder (0.5mm)
  * Paaste-like solder flux, e.g. RMA-223 in syringe
  * fine Tweezers, non-magnetic
  * Magnifying glass / Magnifier Lamp / Stereomicroscope with 5x .. 10x magnification. With good eye sight a pair of strong reading glasses (+4 Dioptrien) cn serve well as magnifier glasses.
  * Workplace needs to be well lit. Strong lighting results in the eye pupils getting smaller - this increases visual resolution additionally
  * Digital multimeter
  * Power supply with adjustable voltage and adjustable maximum current
  * RF dummy load 50 Ohm 50 W or more
  * usual tools (screw drivers, Schraubendreher, small pliers, small side cutter, ..)
  * Shortwave transceiver to check RX and TX function of OVI40
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Usefull but not strictly necessary:
  * Oscilloscope
  * Frequency counter upto 200 MHz or so 
  * RF voltmeter upto 200 MHz or so
  * ST Micro test adapter "ST-Link V2". Original adapter or low price clones
  * Hot air soldering station. Low-cost gear such as "ZD-939L", "ZJchao" oder similar are already very helpful for de-soldering. Known brands such as Weller WHA300 are occasionally apearing in on line auctions for low budget prices.

A hot air pistol may also be quite useful for de-soldering - if used with caution. Measure the true temperature with a thermometer or a PT100 / PT1000 resistor and an ohm-meter. Cover areas that shouldn't be de-soldered with heat resistant material such as aluminium or capton foil. 

[{{:ovi40order:steinel.jpg?400|Hot air pistol used for de-soldering - see text}}]

==== Helpful personal qualities ====
  * A steady calm hand
  * Ability to fight one's weaker self
  * Patience (this is not a project finished in a few days)
  * Perseverance