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Hi Daimon I must admit I'd never thought of the potential problem you mention. However FWIW I use a Signalink USB between Raspberry Pi and ubitx and it all works fine in every mode I've

Discussed the cross-over issue to my brother in law. He was also perplexed, so did more research - and found an answer. Turns out, it is a "feature" of the LM358! The way

Good afternoon all I'm new to the group,?a friend? wants to upgrade his ubitx display to a Nextion 3.5 inch type. As far as I know his radio has no mods but he would like to add a S meter with the

hi all, i am working a project that i want to use VK4PLN (VK4PP) RADUINOI2C ver. 1.0 i looked in the files section and through pages of files that are poorly described. for now i need the raduino i2c

bruce, you may replace the bi-directional amps by 3 transistor version and see the performance difference. A friend has indicated that noise level comes down. Even One could try with single dual gate

Hi: I'm also a fan of the BITX40/20 architecture and have had good luck on other bands.? One thing I did was to create a "mainframe" of the core of the design that starts right before the first

I use series capacitors often, especially to avoid the transformer output shorting out the DC! 1 microfarad works usually

I have bought this from ebay and working ok with my ubitx

Hi all,? i am about to connect my Raspberry Pi via a usb souncdard to the uBitx. in relation to the mic out from the rig to the sound card - does the dc voltage present on the tip of the plug (for

Andy, Don't grind weller bits as they are copper coated with iron (I think). Copper tips wear out quickly as the solder dissolves copper. Raj

Hi Tim, ? ?That's an interesting sounding tip - thank you.? I'm fairly new to SMD and have just used the thin pencil tip on my Weller iron.? It's worked OK so far but there's likely plenty of

Gosh! Never go against the Big Three!!! Glad to hear everything should be over!!! Il 30/nov/2018 21:14, "Giancarlo via Groups.Io" <i7swx@...> ha scritto:

I trust Worldchips store in Ali??http://s.click.aliexpress.com/e/v9spDgU?but they have 2.4 and 2.8 inch LCDs, removed 3.5 and higher from list. Alternatively Aihasd store is available with higher

I got my nextion displays direct from their sale site https://www.itead.cc/display/nextion.html 73 Pop VU2POP Sent: Friday, November 30, 2018 8:39 PM To: [email protected] Subject: [BITX20]

I have several thoughts on how to go about it. One is buying the BITX20 board set that uses the diodes and toroids for the mixers, and making a small board or two to use toroids as band

Hi Farhan, sorry to know about the problem you faced. Dodgy people re all over and also people that do not understand, still dodgy..hi. My remote support for you. 73 Gian, I7SWX | | Mail priva di

Some where in Dr. Lee's replys,on his website, I thought I remember Dr. Lee congratulating someone on getting the Nextion to run on a bit-x 40.? you might go through those threads Andy Km4trt

See other threads for addressing spurious. Our group build is adding a 45 MHz filter stage, and using a daughter board with relays. It seems to be an adequate and reproducible fix, we will know soon.

According to the reviews, you also have to get your own schematic. And measure part values, as the caps are not identified. Glad it worked for you, but this might not be a good option for many. In my

BPF would be a strong guarantee no overloading would be heard in the receiver (except for strong signals within the bandpass). Others have pointed out that brand transceivers have BPF in the TX chain.