Mike, I have RG-213U feeding an OCF Dipole up about 25-Ft. The feed line goes into a lighting arrestor then to my LDG YT-1200 Automatic Antenna Tuner. From the tuner I feed a one-meter piece of

Out of curiosity I out my Daiwa meter inline between the QCX+ and the 50W amp with a dummy load attached to the output of the amp. I measured 1.8:1. Is this expected, or acceptable? Seems kind of

Another possible option for some modes is to add support for external tuners ( ie T1) to WSPR software.

Hi all, with digital modes it is very convenient to automatically re-tune the antenna when switching modes. Many transceivers have a way of telling the ATU what band they are currently on, so that the

Check out EA3PP paddles http://www.merseyradar.co.uk/mini-cw-paddle-by-ea3pp/

Not going to weigh in on the inside outside debate, but why not use three 18650 cells and a small BMS for charging. I use this in my stand/pwr supply for my QCX mini.

It’d be simpler to bring the battery power out the back of the QCX+ through a strain relief just above the power plug. Make the power cable just long enough to plug in the power socket, perhaps

Doug the 8 X AA battery pack has been the same batteries for over five years ... very cheap and easy to find anywhere ... with all the complexity of BMS and charging a flammable battery pack inside a

Nick: I suspect the 20V battery system under an attempted draw of perhaps 8-10A is giving you much less than 20V at the final transistors, hence your low power output. Do you not have a proper

Ken, Interesting. QRPBuilder seems to be an extension of QRP Guys. I love their/your SWR/Power/Dummy load. But I’ll have to be honest with you. Your free-standing iambic key costs $45.. For under

Hi Julian, no I don’t have anything new, the gain of the receiver does seem very high compared with my other QCX’s. Strong signals tend to overload the final audio amplifier quickly, that is why I

Doug: I would not use AA batteries. You should try 3 x 18650 lithium ion cells. It is what I use inside my HB-1B and outboard for my QCX+ Mini. Fully charged they provide 12.6VDC and you can get them

Doug ... that is nice but from experience .... put batteries inside and locked in a case with screws .... battery acid will happen at some point /-) I use a 8-AA battery pace with a 9VDC plug on top

I am hoping to mount an internal battery (8 x 1.5 volt AA) and an EFHW tuner on a project board inside my QCX+. It looks like everything will fit. What is not obvious is how to break the connections

As far as I know (and stalked other threads) there is a batch of 1000+ kits being prepared by Hans (hope he'll get well soon) and should be available somewhere soon (1-2 weeks).

I've tuned up the QCX Mini (and bridged the diode) and now getting 4.7W at only 12.1V - up from 2.2W so I'm happy with that. The 50W amp however is only producing 14W so I'm going to have to work on

this thread is derailing completely, but if it does this from alone, why should I not pull it's leg a little more, to be sure it drives full against the fence? quote from message above: "And in

Thank you Larry! My 20m QCX Mini works superb but I did notice some of the issues you mentioned in 1.) so I will go ahead and try to apply these fixes. All the best & and vy 73 de Leo (DL2COM)

I suppose this is a moot point but if anyone has a working radio or unbuilt kit please let me know. Thanks

On Mon, Apr 4, 2022 at 11:51 PM, Ronald Taylor wrote: The amplifier may not work the same way. Different transistors, etc. Once you know the drive power is correct, you can play with the spacing of