A transmission device comprising: a) a non-linear distortion compensating section (109, 206, 309, 406, 509, 606, 709, 806, 909, 1009) for compensating non-linear distortion of an orthogonal base-band signal (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001) digitally modulated by using non-linear distortion compensating data which compensates the non-linear distortion; b) a first orthogonal modulator (111, 208, 311, 408, 511, 608, 711, 808, 911, 1011) for orthogonally modulating the orthogonal base-band signal undergone the non-linear distortion compensation (110, 207, 310, 407, 510, 607, 710, 807, 910, 1010); c) a modulation signal distributor (115, 212, 315, 412, 515, 612, 715, 812, 915, 1015) for distributing a modulation signal (114, 211, 314, 411, 514, 611, 714, 811, 914, 1014) formed by amplifying a signal orthogonally modulated by the first orthogonal modulator (111, 208, 311, 408, 511, 608, 711, 808, 911, 1011); d) a phase/amplitude control section (118, 215, 323, 420, 518, 615, 718, 815, 920, 1018) for controlling a phase and an amplitude of at least one of a distributed signal (117, 214, 317, 414, 517, 614, 717, 814, 917, 1017) distributed by the modulation signal distributor (115, 212, 315, 412, 515, 612, 715, 812, 915, 1015) and a reference signal (124, 221, 324, 421, 524, 621, 724, 821, 926, 1024) based on the orthogonal base-band signal (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001); e) a signal combiner (120, 217, 318, 415, 520, 617, 720, 817, 922, 1022) for combining a combinatory signal (123, 222, 325, 422, 525, 622, 725, 822, 927, 1025) based on the distributed signal (117, 214, 317, 414, 517, 614, 717, 814, 917, 1017) and the reference signal (124, 221, 324, 421, 524, 621, 724, 821, 926, 1024) at least one of which signals' phase and amplitude are controlled by the phase/amplitude control section (118, 215, 323, 420, 518, 615, 718, 815, 920, 1018); and f) a reference table updating section (128, 328, 532, 734, 930, 1026) for updating the non-linear distortion compensating data based on the combinatory signal (123, 222, 325, 422, 525, 622, 725, 822, 927, 1025) combined by the signal combiner (120, 217, 318, 415, 520, 617, 720, 817, 922, 1022) and undergone analog-digital conversion and the orthogonal base-band signal (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001). a) a non-linear distortion compensating section (109, 206, 309, 406, 509, 606, 709, 806, 909, 1009) for compensating non-linear distortion of an orthogonal base-band signal (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001) digitally modulated by using non-linear distortion compensating data which compensates the non-linear distortion; b) a first orthogonal modulator (111, 208, 311, 408, 511, 608, 711, 808, 911, 1011) for orthogonally modulating the orthogonal base-band signal undergone the non-linear distortion compensation (110, 207, 310, 407, 510, 607, 710, 807, 910, 1010); c) a modulation signal distributor (115, 212, 315, 412, 515, 612, 715, 812, 915, 1015) for distributing a modulation signal (114, 211, 314, 411, 514, 611, 714, 811, 914, 1014) formed by amplifying a signal orthogonally modulated by the first orthogonal modulator (111, 208, 311, 408, 511, 608, 711, 808, 911, 1011); d) a phase/amplitude control section (118, 215, 323, 420, 518, 615, 718, 815, 920, 1018) for controlling a phase and an amplitude of at least one of a distributed signal (117, 214, 317, 414, 517, 614, 717, 814, 917, 1017) distributed by the modulation signal distributor (115, 212, 315, 412, 515, 612, 715, 812, 915, 1015) and a reference signal (124, 221, 324, 421, 524, 621, 724, 821, 926, 1024) based on the orthogonal base-band signal (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001); e) a signal combiner (120, 217, 318, 415, 520, 617, 720, 817, 922, 1022) for combining a combinatory signal (123, 222, 325, 422, 525, 622, 725, 822, 927, 1025) based on the distributed signal (117, 214, 317, 414, 517, 614, 717, 814, 917, 1017) and the reference signal (124, 221, 324, 421, 524, 621, 724, 821, 926, 1024) at least one of which signals' phase and amplitude are controlled by the phase/amplitude control section (118, 215, 323, 420, 518, 615, 718, 815, 920, 1018); and f) a reference table updating section (128, 328, 532, 734, 930, 1026) for updating the non-linear distortion compensating data based on the combinatory signal (123, 222, 325, 422, 525, 622, 725, 822, 927, 1025) combined by the signal combiner (120, 217, 318, 415, 520, 617, 720, 817, 922, 1022) and undergone analog-digital conversion and the orthogonal base-band signal (101, 201, 301, 401, 501, 601, 701, 801, 901, 1001).