开云体育

There's enough examples and docs to learn? LTspice well.?? Its a great tool but as said garbage in garbage out. But the tool can do a good job with a little effort. Pushing bits is often easier

Before you hang a 50w Amp I'd consider a band pass filter in line before the amp to keep the spurs from being amped up and above the max allowable.?? RX is not terrible but I'e found even at 5W If I

I know it might be demanding ;) but it would have been nice if the shipment date was mentioned. Checked earlier this week and saw mine were send, bit so far nothing in the mailbox yet. I know I live

The issue is not with the keyed waveform but an undulating bandwidth change. Using the internal keyer hold the dot paddle (much easier to see than with dashes). The bandwidth starts out properly

I'm ?going to give the 2 inch a try turn I down a little to smooth it up then put a light knurl on it. Was the 400 ppr you used an optical or capacitive encoder. The atm103-v is capacitive ?and has

I have updated my uBitx to 4.3 as I would like to use CAT to interface with wsjt-x. I have been unable to find any information on how to set this up. I would appreciate hearing from someone who is

There's another possibility, found early on, at low volume levels: too-low resistance from pot. wiper to Earth. Anything from 1k to 10k wiper-to-IC cures it. If you've replaced the (blown?) audio IC

From power jack to power switch.? From power switch through a 5 amp rectifier to 2 fuses, .5a and 3a.. From fuses to the board.? Reverse polarity protection and no blown fuses. The approximately .7

Mine's also a 400. 2" should work fine. The knob I made is close to an inch thick. The only reason I had to go with 2.5" was to cover up the window for the channel selector (case is an old CB base

Today kids probably can't even buy razor blades :-((? Steve kb1chu

on the 3 pin power plug on the ubitx the middle pin is the pa and the pin to the outside edge is the board power

Be careful, how that PFET thing works is tricky. Several "how I done its" are out on the web with the PFET in the schematic drawn backwards. Here's some old threads on reverse polarity protection,

Vince How many ppr did the one you used have? I have a piece of 2 inch aluminum bar stock that I was going to turn down for the knob and possibly for the flywheel if it is needed. -- Allen ?Merrell

Surprised someone has not mentioned using a P-channel power MOSFET for reverse polarity protection this low current application. (I think someone has on an older thread that this is re-hashing) You

I ordered this as a replacement. Visually it is identical. Works well with...too. *Order Details* Your salesorder number is 54975240. *Details* *Available Quantity* *Backorder Quantity* *UnitPrice*

THANK YOU KEES K5BCQ for your wonderful service to the uBITX community. Mike N6CMY

Allison Thanks for all mod proposals and great discussions. Just got my v3 unit after two month of delivery struggle throw the postal service here in Sweden. Now starts all the fun. I have one

Thanks Joe VE1BWV

I used one of those on a CB-to-10 mod I had done. I had to modify the software to ignore some pulses from it 'cuze it was too sensitive. I made the knob for it out of 2.5" aluminum round bar. Give

I assume you were vaguely pointing in the direction of the relay trick, powering the coil through a diode. That's a good solution, one I might use for a KW rig someday Or even 100 Watts. Though I'd