PLL's controlled by a PIC16F628

SAA1057 Weather satellite receiver pll, 137 - 141 MHz
Sat tuner
TSA5511, 60-1300 MHz Rx / Tx
SAA1057, 72-92 & 87.5-108 MHz Tx
SAA1057, 512-1800 kHz Tx

PIC16F628 & SAA1057 weather satellite PLL
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 Picture above is outdated.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

NOAA POES info site.
HF-FAX info site.

Starts in scanning mode after powering up.
Displays the name(s) of the received wsat.
local oscillator is 10.7MHz below frequency on display.

628wsat.hex


receiver pll circuit diagram

I2C-pll based Tuners & Receivers
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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60 - 1300 MHz Rx / Tx pll
I2C-PIC16F628-LCD
    
TSA5511 circuit diagram
lcd1.png
main screen
Rx indicates use of i.f.
 
 lcd2.png
set i.f. to -10.7 MHz
press MENU + DOWN
 
 lcd3.png
press STEP to show pll freq.
( i.f. = +10.7 MHz )
 
lcd4.png
set i.f. to +38.9 MHz
press MENU + UP
 lcd6.png
set stepsize
press MENU + STEP

-- click for hexcode ---

72.00 - 92.00 & 87.50 - 108.00 MHz Tx pll

also for AM
UP or DOWN steps 50 kHz, STEP+UP or STEP+DOWN steps faster
lcd must be 2 lines, 16 characters, HD44780 compatible.

startup display...only for 0.5 seconds.


display after powering up with up & down pressed.

option to put your own text on second line of the lcd
[ 1 ] press UP and DOWN while powering up.
[ 2 ] use UP or DOWN to select a character.
[ 3 ] press STEP for the next character.
repeat [ 2 ] and [ 3 ] until the line is full
data is saved, and displayed on the 2nd line.

PIC16F628-SAA1057 TX diagram

fm_1057.hex -- 87.50 - 108 MHz ---

fm_1057b.hex -- 72 - 92 MHz ---

512 - 1800 kHz Tx pll

PIC16F870 version.

UP or DOWN steps 1 or 9 kHz, STEP+UP or STEP+DOWN steps faster
use STEP button, to select 1 or  9 kHz steps.
lcd must be 2 lines, 16 characters, HD44780 compatible.

same hardware, other software....

-- 512 - 1800 kHz ---