Following Colin's advice I ended up changing R6 resistor to 470k and
17, 20m BPF inductors to 4.8uH
30m BPF inductors to 8.2uH
If you go for this, be careful you do not burn the top of the switches or damage anything. I did not implement the 1uF audio amplifier mod as the it requires an in line volume control as the signals can get very loud.
After the modification I peaked the BPF by ear with the help of a signal generator and a step attenuator.
|M0HDF - MTR v2 tribander PCB|
30m was lively and worked 18 chasers in 10 minutes with a good pile up. It was great to work my friend Guru EA2IF in Pamplona and Ian MM0GYX in Inverness, with whom I recently had a chat over the phone about our G11 SDR and other radio common interests (SDR, HF CW contest and SOTA).
|M0HDF - Homebrew 40-30-20-17m EFHW & Mountain Tuner @ 6m pole|
On 17m, I did not get that many responses to my CQ. I tuned around and found Alf IT9MUO with some power and speed. I recorded the QSO on my phone.
Summary: 29 QSOs, 1S2S HB9CBR/P @ HB/JU-003, Best DX: EA8/PA7ZEE and great fun to be on the air again with the MTR tribander.
30m: 18 Qs
20m: 8 Qs
17m: 3 Qs
73 Angel M0HDF/P