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Yep, there is a retail operation in Ohio that stocks all the parts. As soon as the government drops my stimulus money I am going to stimulate the economy by purchasing a yeasu 2/440 hand held along

Hello, I really appreciate Farman and Allison coming out to help. The main reason I want to increase my output is because I have to setup my antenna inside. It was pointed out that my walls will

You cannot design a crystal filter with the VNA, you can only test it to your design. To design a filter, measure the motional parameters of your crystals, probably the vna can help. Then, plug those

Not all of those wall warts are regulated, as I found out. Need to test unloaded voltage against loaded voltage. Many 12 volt wall warts put out 16 or more volts at no load. This you do not want.

I have to fess up and admit that I am still new in the linear build process.? I bought a DIY Kit 70w SSB linear off of eBay for about $18 US.? With it, I also bought an XP-LPF-HF Filter kit for

You can find it here: https://github.com/amunters/ Paul KL7FLR

Ashok first of all, you did not specify SSB bandwidth or CW bandwidth.? Asshar describes design of SSB filter at 12 MHz on his BITX and uBITX circuit descriptions. narrow CW filters are described on

Hi Richard, I am glad to hear that. I can't wait. to finish mine radio. scott wrote:

I have a friend who has a Ver3 Bitx40 board.? It's been awhile since I've used Git Hub and can't find the location to download Ver128.1.? I would appreciate it if someone could give me the link to

I just got mine s meter working, well kinda sorta. The s meter moves and the cw decoder sometimes decodes. It took me a few days to figure out the wiring, i didn’t see this post till after been

Hi all, Can anyone guide me how to use VNA to design crystal filter. I am completely new to this VNA. Many forums mention this abt VNA and crystal filter but i cannot find any proper guide how to

Kb9lrw on the drawing seems like a clue, glad to see global enthusiasm. An audio interface is much more vital than CAT. Primary function for CAT is to get correct band on the log. (-: Everyone work to

Okay Before our expert designers get into it, let's not have global warming here. Okay when I saw wanting 2 bands, I thought ubitx not bitx. For the latter, the 10w qrplabs amplifier could be a good

If you have limited access to ground ,you might be successful with an 'Artificial Ground' It is a (variable)L ,(variable) C series resonant circuit with a sensitive mA or MicroA meter coupled to a

allison, while the 6 db takes it only a single s unit, it does make a significant difference if you are hovering at the noise level. most of us QRPers are there. for casual operator on the other end,

Chris, Not sure what version of bitx but most of them were 3-10W? so whatever your getting now you want about 4x to make it worth your time. The other is you must respect input power for the amp

Hi all To clarify: QRP Labs has three amplifier kits, of which two have been mentioned in this discussion. All amplifiers should always be followed by adequate low pass filtering, at least sufficient

MFJ sells the mount for the two hamsticks with bracket to mount to? pole:

Sounds like a good, workable plan. Good luck, Ken, N2VIP