![]() Scans 4 fixed frequencies. Picture above is outdated.
------updated: 21 aug 2006------
137.9125 MHz - NOAA 18
137.400 MHz - SICH1-M
137.500 MHz - NOAA 12 & 15
137.620 MHz - NOAA 14 & 16 & 17
Starts in scanning mode after powering up.
Displays the name(s) of the received wsat.
local oscillator is 10.7MHz below frequency on display.
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![]() RX - I2C - PIC16F628 - LCD - circuit diagram |
Frequency range - stepsize | local.osc. | description | hex code | more info |
900 -> 2150 MHz - 1 MHz | + 479.5 MHz | Sattelite tuner for 2x16 LCD |
628sat.hex | click |
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![]() I2C-PIC16F628-LCD |
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![]() TSA5511 circuit diagram |
![]() main screen
Rx indicates use of i.f.
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![]() set i.f. to -10.7 MHz
press MENU + DOWN
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![]() press STEP to show pll freq.
( i.f. = +10.7 MHz )
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![]() set i.f. to +38.9 MHz
press MENU + UP
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![]() set stepsize
press MENU + STEP
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![]() PIC16F628-SAA1057 TX diagram |
fm_1057.hex -- 87.50 - 108 MHz ---
fm_1057b.hex -- 72 - 92 MHz ---