Hy, Guillermo, CP6GA from Bolivia.
I bougth my MTB3 and I need the fiel antenna 20-30-40.
Please recomend me all the kit in especial Antenna, tuner, etc. I am a beginer.
I see de LNR Precision MTR but expensive
I want a low cost and practic equipment for the jungle, river, etc
Tkank
Hello Guillermo, and welcome :)
Get an FT-140-43 toroid core and a 100pf 3000V capacitor, some 1mm enameled magnet wire...
Use a 67ft antenna wire.
Then see the photos below:
The box above is a Hammond 1594B.
Gil.
Thank Gil !!
I have a doubt you say FT-140-43 but in the picture es FT 240-43.
Supourse that de only diference is the size ?
Don't need tuner?
Thank you
Hello,
Yes, the difference is the size. The 240-43 is a bit more efficient but much bigger. I use the 140-size. No tuner needed on 40/20m, maybe on 30.
For my MTR is use this to check SWR:
https://qrpguys.com/tuning-indicator (https://qrpguys.com/tuning-indicator)
If the LED is not full-bright, you're ok.
Gil.