niedziela, 13 sierpnia 2017
ADF5355 cheap chineese dev board on Orange Pi Zero mainline kernel overlay
https://wiki.analog.com/resources/tools-software/linux-drivers/iio-pll/adf5355
/dts-v1/;
/plugin/;
/ {
compatible = "sun8i-h2-plus";
fragment@0 {
target = <&spi1>;
__overlay__ {
status = "okay";
};
};
fragment@2 {
target-path = "/";
__overlay__ {
fixed_ref_clk: clock@0 { /* Fixed adf5355_regulator reference clock */
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <26000000>;
clock-accuracy = <5>; /* ppb */
};
};
};
fragment@1 {
target = <&spi1>;
__overlay__ {
adf5355@0 {
compatible = "adf5355";
reg = <0>;
clocks = <&fixed_ref_clk>;
spi-max-frequency = <1000000>;
clock-names = "clkin";
clock-output-names = "adf5355_out";
adi,charge-pump-current = <900>;
adi,muxout-select = <6>;
adi,reference-doubler-enable;
adi,mute-till-lock-enable;
adi,output-a-power = <3>;
adi,output-b-power = <3>;
adi,output-b-enable;
adi,output-a-enable;
adi,charge-pump-negative-bleed-enable;
adi,reference-differential-input-enable;
adi,muxout-level-3v3-enable;
adi,power-up-frequency = /bits/ 64 <123000000>;
};
};
};
};
poniedziałek, 15 sierpnia 2016
SQ Lab Transverter 1296MHz sequence timings
Some tests taken today. NOTE: tests were made with jumper 4 ON (rf vox activated)! NOTE2: RF OUT signal is taken from FWD pin of swr connector.
![]() |
| 1.7ms from PTT in via coax to PTT out in 3.5mm jack socket |
![]() |
| 26ms from PTTout to RF signal at output |
![]() |
| 450ms from end of PTT signal at coax input to end of PTTout signal at 3.5mm jack |
niedziela, 5 czerwca 2016
GPS wewnątrz radia Kenwood TH-D7 | GPS inside Kenwood TH-D7
Użyłem modułu GPS oznaczonego jako: GPS-GMM-R1. Prawie na pewno każdy moduł GPS który startuje w trybie 9600 bodów NMEA się nada.
Cold Start TTF: 1.5-2 minutes. Hot Start: 20 seconds.
środa, 30 września 2015
RelComm RDS-SR026
Black - common VCC (+8.2V)
Brown to GND -> C-1
Red to GND -> C-2
Indicating reed switch: white-black - common.
Latching Self Cut-Off.
piątek, 5 czerwca 2015
Filtr ~2.4 GHz kupiony na giełdzie na ŁOSiu
sobota, 9 maja 2015
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