I built the Hardrock 50 kit. It is easy to build, has excellent support if you have problems, and works flawlessly. it puts out 50 watts with 1 watt input on 80-10m, except it requires 2.5w input on 2

After 2 sticking relays, I put in a socket to make it easier next time. I attribute it to using too much power into my ATU when it searches for a low SWR

I use my uBitx V4 with a Hardrock 50. I only run FT8, so I use the WSJT PWR slider to adjust the power. 1 watt gives me around 50 w out on all bands except 20. For 20m I run about 2-2.5 watts out of t

80,40,30,20,17,15,10

I built a 20/40 dipole and was really struggling getting the resonance points where I needed them to be using my radio and SWR meter. I finally ordered a nanovna and was able to dial it in quickly han

#antennas #v6

I’m thinking about using the amps band selection to select input pads. The band is selected using frequency from CAT. I’ll see if it is necessary when I see the actual performance of the amp. Stated M

Has anyone interfaced their UBitx to a Hardrock-50? I have one on order. I’m planning on putting a pad on the input that I will set to give max output on the weakest band. That way it should not overd

Back on the air. It turned out to be a shorted reverse protection diode. I’m not sure how it got blown by the overvoltage spike unless it exceeded the PRV. Anyway, very lucky. thanks for everyone’s he

Thanks I’ll try that

My power supply regulator failed. The crowbar circuit kicked in at 15v and blew the fast blow fuse, but my board is dead. The voltage could have gotten as high as 27v before the fuse blew. The 2 amp f

I put 2 1:1 audio transformers into my V4 and put 2 mono jacks on the back that I run to a $7 usb sound card on my pc. I ran the nano’s usb to a connector on the back for CAT. I put ferries on the usb

#ubitx

What is the title of the new book? I looked on amazon and didn’t see anything with those projects

I use omnirig with com3 to communicate with WSJTx but I cannot get Hamlib to connect

I have a HW104 with solid state finals and was thinking of doing the same thing.

That looks great Jack. Are you going to sell a kit?

#ubitx

K1 is the Transmitt/Recieve relay. It was sticking in my v4

I had the same issue. I replaced K1 with the axicom and it fixed it.i only run about 15 watts on 80 meters, but I was switching inductance on my ant tuner often while in transmit. I think that may hav

#ubitx #bitx20

Has anyone tried using a buck boost module to raise the finals voltage supply? I’m worried about the noise from the supply ending up causing spurs on my output. How high have you successfully run the

-- My radio is a V4, so I needed to change them all anyway. John Faivre WA9SGD

#ubitx

I replaced all the relays with Axicom relays. It wasn’t too bad to get the old ones out with a solder sucker. Thatfixed the problem. Thanks for your help.

#ubitx