Blegos (1562m), September 2020.
S53DZ Bojan Naglic, JN76FC, Ljubljana, Slovenia
- my spare time interests: RF, C, asm, ARM, mountains, photo, billiards (not necessarily in this order)
Actually it has all begun with a few meter of wire, a crystal diode in a small glass tube,
a filter capacitor and headphones. And a great joy when a local broadcaster's sound was received.
Then there was an air coil, finding a proper tap on it and a rotary variable air capacitor,
finding some other on-air signals. Could well be that there was also a simple question like:
"What is the signal frequency?" or "What is this signal's strength?"
It was time to find some answers.
After a long time there were some hobby boxes on the table resulting from my DIY projects.
I thought it could be interesting also for those, coming by.
Some of my home-made instruments:
- RF signal generator, RF power meter, GPS-DO and OCXO 10MHz, Frequency counter.
Home laboratory instruments, RTXs and alike
|Basic design 4GHz(S53MV) + Prescaler 20GHz(S52ZB) + 10MHz std input and RS232, 2nd: Anchi (S53MV)||PCB:S52ZB
|New frequency counter + delta marker, using ARM (S53DZ)||
|Using CPLD + ring modulator for up to 1500MHz (S53DZ)||
|Using VCO/PLL and ARM (S53DZ, S56ZLN), 2nd (S53MV)||PCB
|Basic design up to 500MHz(OZ2CPU) + two true-RMS RF probes(S53DZ), 2nd from DL2SBA||PCB sonda|
|1st: Jupiter-T GPS_RX+TCXO+PLL(S52ZB) + 3V3 antenna supply, 2nd: stand-alone OCXO||PCB:S52ZB|
|Building NBP, NBPv2, design (S53MV)||PCB:S53MV
|mcHF project(M0NKA), MiniTRX(OE3HKC), OVI40(DF8OE)||PCB:M0NKA+
|65MHz VIA, 180MHz ITVNA and 3GHz MSA||PCB
|2.1GHz SA comb BPF alignment, LF white noise gen, 6-el UHF yagi, 5-el VHF yagi.||radiation(YT)|
- (23cm ZiF BPSK for 10Mbps),
- RF reflection bridge for measurements up to 6GHz,
- simple FFT SA on ARM (LPC2138 --> STM32f4),
Sometimes with electronics it is the same as with these ducks standing on a thin ice - Lake Jasna, Feb 2008.
Projects on this web-site are well tested and are published in good will.
However, no responsibility can be made for making nor using them.
When will I manage to write an ideal code? Never, perhaps even not then.
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