foggycoder
Super Member
Similar to Iambic A and Iambic B modes, Ultimatic is a "squeeze" mode - to form some characters, both keys are pressed at the same time. This saves finger movements (increasing speed and reducing fatigue).
The difference from the Iambic modes is that Ultimatic is "last paddle priority" - if the dit paddle is pressed first then the dah paddle is squeezed, there will be a string of dahs; if the dah paddle is pressed first then the dit paddle is squeezed, there will be a string of dits. When squeezed, Iambic keyers will emit a string of alternating dits and dahs (dit dah dit dah dit dah; or dah dit dah dit dah dit depending on whether Iambic A or Iambic B).
This difference is only noticeable on P (.--.), X (-..-?), and C (-.-.). The P and the X are simpler to send with an Ultimatic keyer, but the C takes more effort.
The reason I chose the Ultimatic mode is that it seemed more logical (I have a tidy mind). But I can understand why operators would prefer a mode that can send a string of alternating dits and dahs as the timing on those can be rather awkward.
The downside of Ultimatic mode is that, while it is available on many stand-alone keyers, very few radios offer it as an option. This means that you are tied to an external keyer.
The difference from the Iambic modes is that Ultimatic is "last paddle priority" - if the dit paddle is pressed first then the dah paddle is squeezed, there will be a string of dahs; if the dah paddle is pressed first then the dit paddle is squeezed, there will be a string of dits. When squeezed, Iambic keyers will emit a string of alternating dits and dahs (dit dah dit dah dit dah; or dah dit dah dit dah dit depending on whether Iambic A or Iambic B).
This difference is only noticeable on P (.--.), X (-..-?), and C (-.-.). The P and the X are simpler to send with an Ultimatic keyer, but the C takes more effort.
The reason I chose the Ultimatic mode is that it seemed more logical (I have a tidy mind). But I can understand why operators would prefer a mode that can send a string of alternating dits and dahs as the timing on those can be rather awkward.
The downside of Ultimatic mode is that, while it is available on many stand-alone keyers, very few radios offer it as an option. This means that you are tied to an external keyer.