AO-40 Frequencies Uplink Digital Analog Passband 15m none 21.210 - 21.250 MHz 12m none 24.920 - 24.960 MHz 2m 145.800 - 145.840 MHz 145.840 - 145.990 MHz 70cm 435.300 - 435.550 MHz 435.550 - 435.800 MHz 23cm(1) 1269.000 - 1269.250 MHz 1269.250 - 1269.500 MHz 23cm(2) 1268.075 - 1268.325 MHz 1268.325 - 1268.575 MHz 13cm(1) 2400.100 - 2400.350 MHz 2400.350 - 2400.600 MHz 13cm(2) 2446.200 - 2446.450 MHz 2446.450 - 2446.700 MHz 6cm 5668.300 - 5668.550 MHz 5668.550 - 5668.800 MHz Downlink Digital Analog Passband 2m 145.955 - 145.990 MHz 145.805 - 145.955 MHz 70cm 435.900 - 436.200 MHz 435.475 - 435.725 MHz 13cm(1) 2400.650 - 2400.950 MHz 2400.225 - 2400.475 MHz 13cm(2) 2401.650 - 2401.950 MHz 2401.225 - 2401.475 MHz 3cm 10451.450 - 10451.750 MHz 10451.025 - 10451.275 MHz 1.5cm 24048.450 - 24048.750 MHz 24048.025 - 24048.275 MHz Telemetry Beacons (IHU) General Beacon(GB) Middle Beacon(MB) Engineering Beacon(EB) 2m none 145.898 MHz none 70cm 435.438 MHz 435.588 MHz 435.838 MHz 13cm(1) 2400.188 MHz 2400.338 MHz 2400.588 MHz 13cm(2) 2401.173 MHz 2401.323 MHz 2401.573 MHz 3cm 10450.975 MHz 10451.125 MHz 10451.375 MHz 1.5cm 24047.885 MHz 24048.035 MHz 24048.285 MHz U S1 S2 X RUDAK A 9k6 0 436.006 2400.768 2401.747 10451.561 9k6 1 435.982 2400.740 2401.720 10451.536 RUDAK B 9k6 0 436.122 2400.887 2401.867 9k6 1 436.109 2400.870 2401.847 Peter Guelzow, DB2OS, President AMSAT-DL wrote: RUD A mod 0 = 2400.791 RUD A mod 1 = 2400.765 RUD B mod 0 = 2400.910 RUD B mod 1 = 2400.891 (measured with an accuracy of +-5 KHz) Char. Freq. Rem. T 21MHz Uplink H 24MHz Uplink V 145MHz Uplink, Downlink U 435MHz Uplink, Downlink L 1.2GHz 2-Uplink, L1 & L2 S 2.4GHz 2-Uplink, 2-Downlink, S1 & S2 C 5.6GHz Uplink X 10GHz Downlink K 24GHz Downlink Trans. list : UPLINK +-----------------------------------------------------------+ | T H V U | | V 167.130 170.840 - 581.575 | D | | O | U 456.830 460.540 581.500 - | W | | N | S1 2421.580 2425.290 2546.250 2836.025 | L | | I | S2 2422.580 2426.290 2547.250 2837.025 | N | | K | X 10472.380 10476.090 10597.050 10886.825 | | | | K 24069.380 24073.090 24194.050 24483.825 | |_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _| | | | L1 L2 S1 S2 C | | V 1415.275 1414.350 2546.375 2592.475 5814.575 | D | | O | U 1704.975 1704.050 2836.075 2882.175 6104.275 | W | | N | S1 3669.725 3668.800 - - 8069.025 | L | | I | S2 3670.725 3669.800 - - 8070.025 | N | | K | X 11720.525 11719.600 12851.625 12897.725 16119.825 | | | | K 25317.525 25316.600 26448.625 26494.725 29716.825 | +-----------------------------------------------------------+ The above list is quoting from JAMSAT Home Page. Example : Trans.= (U-Up) + (S2-Down) = 2837.025 We made trial of AO-40 "(U-Up) + (S2-Down)" at the beginning of May 2001, then we observed as follows. Approximation after the our observation : Trans.= (U-Up) + (S2-Down) = 2836.990 Up(LSB) Down(USB) 435.755 --> 2401.235 435.690 --> 2401.300 435.560 --> 2401.430 JF6BCC / Imaishi wrote: (A) (B) |------ 95KH ------| |------ 150KHz -----| U -Up 435.780 - 435.685 435.645 - 435.495 L1-Up 1269.496 - 1269.400 1269.360 - 1269.211 : : (EB) S1-Dw 2400.245 - 2400.340 2400.380 - 2400.530 2400.600 S2-Dw 2401.210 - 2401.305 2401.345 - 2401.495 2401.323 (MB) |----| 40KHz S2-MB Gird Band