Methods of using halogenated peptides as internal standards for liquid chromatography-mass spectrometry, and novel halogenated peptides useful for the same, are disclosed. The propagated distance Dp is accompanied by a propagated altitude Ap which at all points follows the vertical flight profile of the aircraft, whilst being greater than the altitudes of these points and complying with the air regulation constraints at these points. A balloon is associated with the distal end of the balloon catheter. The husk discharge opening is arranged to be directed towards the spreading device, allowing husks to be blown into the device and spreading of the husks over the ground with the aid of the spreader wings. Multiple beams may also be utilized in the reverse link to provide increased reverse link capacity, such as for use in providing feedback of forward link channel estimates. The generator generates discriminator to be associated with a REGISTER source terminal using IP addresses contained in all Via headers.