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OK, some weeks later and a few issues with my GPS receiver and aerials, I have tied together the OSC5A vctcxo with the NB3N502 and a Progrock v1. ( I have no doubt the v2 Progrock will suffice, but

hi all, thanks for letting me know about the spare parts that Hans has for sale in the shop, I have already bought them but they will be available in September so they won't arrive before October

Hi Hans, and hi all, after John Z's hint to look for a faulty inductor I need to buy new ones. My dealer has only 3 types? of 47 ?H inductors - the smallest one should be in MICC construction form

Glad to help, Frank! 73, JZ

John Z - it looks like that was the error! I should have noticed right away that the coil "felt so soft". Of course I don't have another coil ready to install :-/ But, you made my day - thanks a lot

ground test link to dashboard https://cayenne.mydevices.com/shared/64e0b7842776391b0df4f766

Hi Hans, sorry, my bad. I thought the 78M33 was on the main board. I wanted to run the 3V3 from there if in trouble.? All clear now. Thanks, 73 Bojan S53DZ

Frank, Check L509 for continuity. If it is open, the PIN diodes for that filter will not forward bias. Also, L510 and L513 must have solid connections as well for the PIN diodes to function on

Frank, Just resolder the inductors. At least 90% of LPF "faults" are just inductor solder joints. 73 Alan G4ZFQ

Hi Chris, seems, like everything is ok. But there is still only very very low output on 30/20. So, for test I changed LPF-assignment for 30/20 to LPF 1 and there at least I could see a much stronger

https://www.allaboutcircuits.com/technical-articles/x7r-x5r-c0g...-a-concise-guide-to-ceramic-capacitor-types/ I have learned more building this one kit than ever!

Thanks Walt. Just the display to build and im nearly done. Mike

That's good news. I'll send Karl the proper value cap later in the morning.

Sure, Peter. I added it to my list, that should be no problem. 73 Hans G0UPL http://qrp-labs.com https://www.buymeacoffee.com/g0upl

Hans, i wonder would it be tricky to route the incomming audio through the headphone output for digi mode when in TX? I mean something like a monitor output with volume setting in the digi interface

Hello Bojan I'm unclear what you're asking. I reviewed the previous posts again and I'm still unclear. It appeared to me that you wanted to know if PCB #2 was absent and you were using an external

Hi Rick, all All the SMD ceramic capacitors on the board are unimportant non-C0G (means probably X7R). The places where it is important to use NP0/C0G are in the BPR and LPF areas and these

If you haven't already looked at the troubleshooting guide it may be helpful. https://qrp-labs.com/qdx/qdxtrouble.html <https://qrp-labs.com/qdx/qdxtrouble.html> 73, Cliff, AE5ZA

Okay! Thank you! I do have several 100 nf tiny leaded caps I may try while waiting for your gift. Whatever the value of C509 it definitely was 0603 size but on its side. Would still worked except for

Hi Ron, Thanks for you assistance.? You're right! I hadn't thought about that. It is confusing considering the fact that the C1 is only tuning a tank circuit in the receiver front end.? But I think