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Brent There are two different types of inexpensive mechanical rotary encoders available from various sources. One type has the detent every cycle and one has the detent every two cycles. A slight

Yup I do that too, use what I've got on hand. If I have time this week maybe I'll add the standard RTC code in and ifdef it so you can chose which RTC module you want to have. When Jack gets back from

Before measuring DC voltages unplug the Raduino. Q10 voltages in the chart are not correct. Short the 12Mhz xtal and then measure the voltages. The Base-emitter should be 0.6-0.7v normally. If the BFO

Well my new kit came in and you wont believe this it turns out my audio jack had went bad. I put the old board back in and it receives just fine and also transmits but the transmit power is very low.

Hi: If you add the following lines to the code, you`ll have BFO on clk0 #define bfo_freq (1200390UL) // or whatever your BFO freq is In void setFreq(unsigned long f) add Si5351 bx_setfreq(0, bfo_freq)

Dexter On mine, I have lifted the wire that goes to the top of the VOL pot from the end pin of the three pin connector. The now floating lead going to the top of the VOL pot is? connected to the AGC

Perhaps 'tombstone' C115? 73 ...

Please note, *everybody*: The M1 and M2 points, on Rx, are connected not just *t*o the K2 contacts, but *by* them - shorting the 10 'upper' resistor of the divider formed with the FET. THe whole

Thanks Willy.. I'll try removing that 10K and see what happens. It's very odd, it just doesn't work as is and I've triple checked the build and the components..... 73? Phil? G4JVF

hi john, hope your doing well. any luck with your upload problem? let us know when it's convenient. 73 wrote:

Maybe he already happened to have one! Vince. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/

I came up with the idea of adding a RTC but onlyJack can respond as to why he chose SPI. Maybe have an option? Bill, VK7MX

Hi, ? I am just getting back into the B40 stuff. I like the clock idea, but. ? Why use the SPI bus RTC clocks, when there are tons of I2C RTC clocks out there ( I’ve got at least 5 or 6 RTC

Thanks. Very good info for inductance measurement Theory. 73 de E29AHU Choke

Using the two outputs from the si5351 should work fine. Spectral purity would not be an issue, the square waves just make harmonics of the si5351 outputs and are easily filtered out by the front end

On Tue, Nov 7, 2017 at 02:35 pm, Brent Seres wrote: > > Also, one of my interests is restoring vintage radios. To align theses, it > is helpful to have a modulated signal, as there is no bfo. Rather

I am using this circuit without the 10K between the diode and the 2N7000 which was not in Farhan's original schematic. It works fairly well for me. I have seen a number versions which have not worked.

Hi all, i am trying to upload the raduino_v1.27.ino to my raduino via the web Arduino Editor.? ? it just stays uploading with a message that says 'Executing command: exit status 1'.? the raduino

I put the one Encoder I have that is a real "keyes" brand.? No threaded shaft. It works fine.? I tried several debounce caps and pull-up resistors. I think it is the code in the encoder.? Like

What about using a multiplexer chip to reduce the number of I/O lines needed. A bit old school but effective. Sent from my iPhone