¿ªÔÆÌåÓý

Date
Re: TDA2822 Replacement
Howdy Raj, Well over half a century ago when I was 13, I wanted to build an oscillator to practice morse code. One of the men at my church was an EE and also a ham (he also had a really cute daughter
By Nelson · #43947 ·
Re: Raduino oscilators. 33mhz and 57mhz " . Documentation says one thing, but this is what I measured.
Hopeffuly you see this Jerry, its just for you. but anyone might find this usefull I hope.? Frequencies on 10mhz lsb Clock 0 54.98977 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
By Michael Shreeve · #43946 ·
Re: ubitx order
It went from shipping Monday to being Stateside today! WOW! DHL does not mess around! If this was UPS or USPS, it would still be in Europe! It will be next week or the week after before I get started
By James Tate · #43945 ·
Re: uBitX - Replacement microphone
Problem is the mikes have a 2.5 and 3.5mm jack. I ordered some 2.5mm females, but didn't pay attention and I received the SMD type. The barrel from that is even shorter than the 3.5mm ones that came
By John · #43944 ·
Re: RD16HHF1 power curve flattening...some
Thanks Doc.... 73
By Nick VK4PP · #43943 ·
Re: uBITX Manager
David It seems that there is a communication problem with uBITX that communication error occurred in both reading and writing. If you have another computer, would you try it again there? The top
By Ian Lee · #43942 ·
Re: uBitX - Replacement microphone
You could mount the jacks from the kit into 2mm thick sheet of plastic.? -- Jason Schlager KM6AUS
By Jason Schlager · #43941 ·
Re: Raduino oscilators. 33mhz and 57mhz " . Documentation says one thing, but this is what I measured.
Correction: File name is ubitx_20.ino ? and You can manually choose the wrong sideband (ie, choose USB for digital modes on 40m). But it will jump to the "correct" sideband whenever you tune through
By Jerry Gaffke · #43940 ·
Re: Dirt cheap uBitx case #ubitx
That switch selector is hilarious. Imagine wiring that up to the uB. We¡¯re gonna need more Arduino pins for that bad boy lol Joe
By Joe Puma <kd2nfc@...> · #43939 ·
Re: Raduino oscilators. 33mhz and 57mhz " . Documentation says one thing, but this is what I measured.
Use the source, Luke! Bands below 10mhz are traditionally LSB.? Bands above are USB. At line 420 inside Farhan's original ubitx_20.iso we have this scrap of code: ? ? if (prev_freq < 10000000l &&
By Jerry Gaffke · #43938 ·
Re: RD16HHF1 to replace 510's in Micro BITX
Also here: /g/BITX20/topic/12897964#42892
By Nick VK4PP · #43937 ·
Volume Control
Is this a linear or logarithmic pot.? I think probably linear but I need to get the right replacement.? Having trouble getting a knob to fit want to go with the knurled shaft instead -- 73, W9KJO
By Walter · #43936 ·
Re: RD16HHF1 power curve flattening...some
You are doing what I would¡­ Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Owner - Operator Big Signal Ranch ¨C K9ZC Staunton, Illinois Owner ¨C Operator Villa Grand
By K9HZ · #43935 ·
Re: RD16HHF1 power curve flattening...some
Hi Group. Anymore updates on this? I have received my components and plan to do the following: RD16, BN43-3312 (4:1) with 330pf mica, 820ohm feedback, 330pf on R87/88, Re-bias 250-500ma?, 13.8v and
By Nick VK4PP · #43934 ·
Dirt cheap uBitx case #ubitx
I wish I could remember which post covered using switch boxes for cases but this one was perfect and only $4 from an electronic surplus store. My radio literally just arrived this afternoon so I
By N1AFF - formerly KB1JPW · #43933 ·
Re: Cases
Just received the case for my Bitx40 from kitsIndia https://amateurradiokits.in/ and it is a thing of beauty and even comes with all the face parts and knobs...... So, today I ordered their case for
By David Wilcox K8WPE · #43932 ·
Re: Raduino oscilators. 33mhz and 57mhz " . Documentation says one thing, but this is what I measured.
It was supposed to be this link Jerry. Sorry Its a hex file.?https://drive.google.com/file/d/140qhLIDZJ_MgM33lB3buVFOVex2F67Ui/view
By Michael Shreeve · #43931 ·
Re: TDA2822 experiments and mods
Hi all Here's my take and partial solution.? I've got an issue 1 Ubitx number F20/1, it's used receive only at the moment, the only suitable speaker I have is a 4 ohm oval from an old amplified PC
By David S · #43930 ·
Re: Raduino oscilators. 33mhz and 57mhz " . Documentation says one thing, but this is what I measured.
Well, the link was supposed to be the hex file of the original from Farhan.
By Michael Shreeve · #43929 ·
Re: Raduino oscilators. 33mhz and 57mhz " . Documentation says one thing, but this is what I measured.
And not sure why, but I cannot find the original message posted. It had a link to this video?So I'm posting the links to both of my Si5351 uBITX measurement video.? Direct measurement Clocks 0, 1,
By Michael Shreeve · #43928 ·