Wednesday, December 18, 2013

Thursday, December 12, 2013

SWR / Wattmeter with Arduino NANO AVAILABLE

Just arrived the pcb !!! 

 Available in kit and mounted (case not included).
Only PBC = 15 euro (20 USD)
Kit all included (no case) = 50 euro (67 USD)
Mounted and tested (no case) = 89 euro (120 USD)
Contact me for more detail
73 Luca

Monday, December 9, 2013

Antenna analyzer Code and specifications

Here some informations
Code is Common Creative License.
Specification are:
Frequency Limit = DDS Freq limit = AD9850 1 - 30 Mhz
Limit of detector 2.7 Ghz
Output level between 17 Dbm and 0 Dbm.
Sign of reactance MUST be calculate by software with an old trick:
1. go to test frequency (tf), get magnitude of reactance (mr)
2. go up and down 50 khz of tf, get magnitudes of reactance (mr1 & mr2)
3. if mr1 > mr > mr2 then mr = negative else positive (or viceversa, do not remember)
If you have more question please let me know :)

Antenna analyzer first kit abroad

First kit mounted abroad :)
Thank to Eugen - YO3FXN

Sunday, December 1, 2013

SWR / Wattmeter with Arduino NANO

Just for information I put Wattmeter/SWR with Nano pcb in production.
In 10-15 days will be ready. 
73 Luca