Re: Ordered the 10th, no tracking number yet
I got the same mail one week ago, no sign of it (in India!)
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Raj vu2zap
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#36581
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Re: Apology in advance if dumb question - How do I know my order has been captured?
As I understood ALL uBitx to US is via Courier and to EU by post with option courier. I may be wrong!
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Raj vu2zap
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#36580
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Rats!! If you didn't find the 4.925 MHz signal, looks like something there really has a problem...... I also note that you sound like you're really knowing how to hunt for things now!!! HOOORAY !!!
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Gordon Gibby <ggibby@...>
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#36579
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Re: : [BITX20] uBit Build
While driving back to town I suddenly remembered CODEVIEW..
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Raj vu2zap
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#36578
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Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Andy: That;s all right. I misread your 2nd instance as 500 ohms, not 50 ohms, If it is indeed 50 ohms, then a simple 1:1 transformer or LC match will suffice. That may not even be needed as there are
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John Backo
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#36577
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Re: GPS for time and Maidenhead for port ops
John and others, Thanks for your replies and comments. These demonstrate that it is feasible and possible. Now, I need to do some research/homework and bring it all together. If you like, I¡¯ll
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Peter Watkins
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#36576
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Re: uBitx power draw variation
#ubitx
Bob, Why are you measuring current in the negative line and not the positive line? This would eliminate strange grounding effects as there is only one positive supply lead. 73, Alex PA1FOX
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Alex - PA1FOX
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#36575
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Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
EDIT...sorry, I'm reading 200¦¸ for crystal filters, not 2K.? It's only a zero. hi hi
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AndyH
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#36574
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Re: uBITX How to wire key jack for paddles?
Ashhar, The photo of the key jack in 3.3 of the wiring instructions shows the wires connected to the ring not the tip. Couldn't work out why my external keyer wouldn't key the rig as I wired according
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Kelly Jack
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#36573
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Re: In Line Resistive Terminators for Z Measurement? ?BITX Crystal Filter
Hi John, ? ?I appreciate your comments.? I agree that the first option isn't going to fly.? I saw the changes in the noise floor but at this point in my 'crystal kindergarten' I don't grok the
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AndyH
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#36572
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Re: #Ubitx RX only version for general coverage
#ubitx
Hi Cor, I can confirm. Just use the building blocks needed to receive. I'am building the uBitx from scratch and have been playing around with the receiver quite some time before starting to build the
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Alex - PA1FOX
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#36571
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
The Si5351A is on the Raduino board itself. Under the LCD.? It's fairly tiny. The LM386 is in fact the audio amplifier. No harm to be done by carefully resoldering those couple of pins, although this
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Bill Maxwell
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#36570
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Looking at the schematics, that appears to be LM386 - low voltage power amplifier. It also appears that the SIS chip is on the raduino itself. So, I'll look there for it. Could this power amplifier be
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tausciam@...
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#36569
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Re: Ordered the 10th, no tracking number yet
Got a tracking number Dec 12, package picked up at 17:17 in Hyderabad, went to Bangalore, Leipzig, Cincinnati and Los Angeles by 06:37, 15 Dec. Must have gone on vacation as it arrived in Honolulu at
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weko1@...
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#36568
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Ok...I checked again. This time searching 4.925 as well as above and below it. I didn't find the signal in LSB mode. I looked for a 10 legged chip and didn't find one. I did, however, find an 8 legged
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tausciam@...
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#36567
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Here is the relevant subroutine in the 7025 KHz sketch: void setFrequency(unsigned long f) { // Want to tune to 7075 kHz // Intermediate frequency is 12 000 000 // Needed VFO freq is 12 000 000 -
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Gordon Gibby <ggibby@...>
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#36566
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
?The reason 12.000 MHz is important is that this is the crystal filter frequency (roughly) --- so the purpose of the VFO is to create a frequency that when added (or, subtracted one way or the other)
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Gordon Gibby <ggibby@...>
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#36565
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
Here's the datasheet for the Si5351: https://www.silabs.com/documents/public/data-sheets/Si5351-B.pdf? Looks like indeed it comes in a 10-lead surface mount version. ________________________________
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Gordon Gibby <ggibby@...>
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#36564
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Re: Help! I think I may have just ruined my 9 year old's Chanukah
"It's a Yaesu FT-891. With the regular sketch, I looked for it from 4.8-5.5 mhz. With yours, I looked for it about 200 below and 500 above 7.025 mhz Isn't the Si5351 just a chip? Can't I just replace
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Gordon Gibby <ggibby@...>
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#36563
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Fw: [BITX20] Help! I think I may have just ruined my 9 year old's Chanukah
Here's the sketch again--- it should generate a signal on the Raduino at 4.925 MHz ________________________________ Sent: Monday, December 18, 2017 8:34 AM To: [email protected] Subject: Re: [BITX20]
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Gordon Gibby <ggibby@...>
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#36562
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