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Re: Real or Clone - Nano survivability, any real difference?
The host computer needs to know how to talk to the USB-to-UART chip on the Nano. This chip converts USB traffic from your host computer (perhaps during a firmware download) into UART transmit and
By Jerry Gaffke · #67568 ·
Re: A Full Screen 3.5 #nextion
Many thanks for that,? maybe I can now get the second nano with the spectrum and CW screens working,? is that tft for the enhanced 3.5?? if not can you post the HMI and I can compile
By ray_gardiner · #67567 ·
Re: 2N2222A getting super hot
I have a FLIR thermal camera that comes as an iPhone attachment.?FLIR ONE for iOS Personal Thermal Imager ? https://store.apple.com/ca/xc/product/HL5K2VC/A It works well, and I used it to diagnose
By Hasan Murtaza · #67566 ·
Re: Help with BitX40 Ver 2 #bitx40help
Thanks Jerry. ?My original thought was to follow the trace and solder to the end of the cap but wondered about the possibility of 'stray' rf coming from that trace. ?I’ll take the easiest route
By AG?H · #67565 ·
Re: Real or Clone - Nano survivability, any real difference?
I have always put small toroids in line with the ptt and mic. I assume that have had rf on the circuits on half of the bitx radios. Normally run 1:1 swr. Don't know whether any of them have come
By _Dave_ AD0B · #67564 ·
Re: Broke it like only a newbie can - Calibration problems
Bill, You do have the correct firmware, as I was one of maybe the first half-dozen test rats [with appreciation to Dr Lee] at the release time. 11.055.500 is as good place to begin. Mine's dialed in
By Ted · #67563 ·
Re: Kit-Projects ND6T Ubitx AGC
Restocked tonight. https://shop.kit-projects.com/index.php?route=product/product&product_id=101 -- David ?N8DAH Kit-Projects.com ( http://www.kit-projects.com ) Shop is open! (
By N8DAH · #67562 ·
Re: Modern AGC references
Yes, we have both audio and IF AGC. The schematics for it and everything else is available on our web site: hamradiodesigns.com. Jack, W8TEE
By Jack Purdum <jjpurdum@...> · #67561 ·
Modern AGC references
As promised, from my vast files and my commercial designs . here are some references for modern AGC circuits. One very common design was detailed in the December 2007 issue of QST on Page 30 by
By MadRadioModder · #67560 ·
Re: AGC/AVC threshold
An AVC threshold is a personal preference… what is the loudest volume you want to hear? The AGC is different. You want to set the AGC level so that no stage in the receiver chain is over-driven
By MadRadioModder · #67559 ·
Re: Real or Clone - Nano survivability, any real difference?
Hi Jerry: There's no doubt that "real" Arduino boards rarely have any problems when used and are of better quality than the clones. I used nothing but the real thing for years. Somewhere along the
By Jack Purdum <jjpurdum@...> · #67558 ·
Re: AGC/AVC threshold
Speaking of agc/avc ...Any suggestions on the threshold level (where it starts to kick in)? Not seen (may have missed it) any level measurements ... Jim
By jim <ab7vf@...> · #67557 ·
Re: Broke it like only a newbie can - Calibration problems
Hi Ion, I have CECver1.122 Loaded on my v5 board. I thought that was the latest. The file was the .hex for from his website. Bill KE8EYM
By Wiley1 · #67556 ·
Re: A Full Screen 3.5 #nextion
Here we are with this again. An identical screen to the original CEC 2.8" rendition, I finally got around to fixing the Memory-to-VFO and Spectrum/CW Read screens. ted k3rta
By Ted · #67555 ·
Re: Help with BitX40 Ver 2 #bitx40help
I assume you are looking at Allard's mod to the Bitx40 for driving the BFO from the si5351 instead of the analog
By Jerry Gaffke · #67554 ·
Help with BitX40 Ver 2 #bitx40help
I have a completed BITX40 - Ver.1.?I’ve decided to upgrade to Ver.2.?The instructions call for the center of a piece of coax to be attached to pin *6* of *T4*.?When I look at that coil, I see the
By AG?H · #67553 ·
Re: Real or Clone - Nano survivability, any real difference?
Some of the Nano failures reported here can be attributed to not enough protection on the IO pins. For example, a couple pins going out to a keyer may as well be protected from static discharge with
By Jerry Gaffke · #67552 ·
Re: I2C Signal meter HEX file?
No, not an odd clone.? In your other thread on Nano Clones, we learned that the photo above shows the contact pins soldered in at the maker's on the side normally used in the market and that we, in
By Ted · #67551 ·
Re: Clone Raduino ?
Snowist, Thank you for that parts source. Ted K3RTA
By Ted · #67550 ·
Real or Clone - Nano survivability, any real difference?
OK, since neither ones' choice of motor oils nor the odds on the Eagles vs. Cowboys are controversial enough, here's one:?? Have any of my fellow uBitx / Bitx40/20? owners experienced a different
By Ted · #67548 ·