I'm interested in the mcHF (not it's Chinese 918 clone) and would like to build my own QRP TCVR (I built a Heathkit many years ago) to use it in parallel with my QRO FT-897D. I studied various models

Hi, I'm trying to resolve the IQ calibration. The problem is that there is quite no modification of amplitude of the carrier to reduce when i adjust balance and phase IQ. Where could be the problem ?

Hi group, I received my 0.6.3 kit from Lucy a few days ago and have got it assembled. That was fun :) It appears to work but the audio from speaker or headphones is very quiet and "hollow" sounding, e

Hi All, I have just received my kit and I am making a start of the winding of the coils in the LPF. My question to the group is this:- having wound some coils I checked them with My LCR meter at a fre

Hi Guys, Thanks for the responses I received. This pretty much confirmed my own observations. Last time I built any filters of note I used my spectrum analyser to sweep the filters and adjusted accord

I need some education. I’m running firmware version 2.11.95. Pushbutton F2 is labeled SNAP. What does it do?

Hello, I think I've finally worked through my problems on TX in this neat little kit and I've started looking at the RX side of things. I've looked at Chuck's suggestions on walking through the RX cha

I'm finishing assembly of an 0.6.3 kit with case shipped from Lucy, and I can't quite seem to get everything in the case properly. In particular, I can't figure out an arrangement of screws and spacer

I've been enjoying using FT8 via WSJT-X I noticed that on the 30m band the SWR meter shows me 2.5 to 3 which is fine. And I get 'sent' reports on PSKReporter and have completed some digital conversati

Hi, d oes the shield plate need to be grounded at some point? in the rf kit I've found a screw and relate hexagonal tool that puzzle me a lot, see picture. May be was inserted for error or may be I am

This is probably an embarrassing question but here goes... I'm learning morse code. And I admit that I originally set the title as 'How to CW' - which of course is a silly thing cos CW is the mode isn

I am extremely impressed with the DSP Peak function at digging out weaksignals...but whats it doing and how does it work? Anyone know? David G4YVM

Hi folks, i got lost in how to wind T5,6,7. I know there where several versions of how to wind in the past. But i didn't figured out which one is the best for the 0.6.3 board. Maybe you can give me a

Time to bite the bullet and fit a heat sink. Do i pay 6 quid for 4 stick on heat sinks or 25 for a windcamp ally unit a la KX3? Anyone got experiences? David G4YVM

Hi Folks, I received my kit a few weeks ago and assembled it, mainly referring to Paul, OM0ET's, excellent video. When I plugged it in to 12V DC for the first time C105 blew and took fuse, F1, with it

I used my TinySA to take a look at the mcHF output spectrum. Referenced against the base frequency of 14.2 MHz, the second harmonic at 28.4 MHz is down about 20dB, the third at 42.6 MHz is down about

I am trying to get WJST-X running on a WIN 10 computer to work with my mcHF (H/W 0.6.3; F/W D2.11.95). The mcHF appears to be sending the audio OUT signal to WSJT-X and WSJT-X decodes and displays pro

Well my mcHF finally up and running and had a string of QSO to prove it! A few quirks I note, firstly the thing gets quite hot quite quickly...soon up at 40 degrees and rising. I have popped a fan by

hello list, I use a mcHF / RS918 which uses soundcard and serial line via USB (with protocol of FT817). I am using Linux opensuse Thumbleweed with newest hamlib (4.2.git 20210203 and lower Versions be

Hey Folks, Please, help me how can I identify PA self oscillation? What are the symptomes I should look for? since I was wondering if I need the mod named RF-04/05/06-N-009 PA Self Oscillation Prevent