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2.5 Ohm Resistor Stablizes Q5 Final... Noting D882's emitter is tied directly to ground, I thought it might ease Q5's burden to add a small power sharing/stabilizing resistor in the emitter leg. I cut

The latest version of the voltmeter implementation has been uploaded. Added feature is cautions and warnings when the input voltage exceeds certain triggers. You can edit those triggers by changing

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the SoftwareControlledHamRadio group. File : /vfo-source-rev6-volt-alert.ino Uploaded by

That is because the 49er has a direct conversion RX...both side bands are received equally. You need to determine which side is the correct one to listen to, based on the direction of the TX offset.

I have an article in QRP Quarterly about varying the tuning rate according to how fast you are turning the encoder. I have mine defaulted to 100Hz but when you turn it fast, the rate is 5 KHz. Give it

Wrong library. Go to yourduino.com,look at their I2C displays and download that library Jack, W8TEE

It was declared--by Jack, I think--sometime ago, and I believe mentioned in the Arduino Nano programming instructions that come with Farrukh's PCB board, that the older IDE (rev.1.165) is used because

The 49èr is a nice, pretty sensitive, transciever. I love that it can "detect" the SSB stations also. But in the CW band you hear the same station on both sides of the zero point. Which side do you

I have build the 49ér, but have not ( yet ) the original Nano/DDS board avalible. I use another, similar, construction of a VFO and other software, and have made the 2 stage amplifier, on a vero

I am trying to upgrade the software on the DDS to Rev 6.10. Am having problem with getting the right LiquidCrystal_I2C.h file to work in the library. I got this message when I tried to compile the

The 49er is not especially selective -- the passband is broad and the front-end can be over-loaded quite easily. This is why Jack designed the BCI filter; could it be, the CW operator you heard is in

yes it does change the frequency up and down and when pushed it changes the hz that it will change when turned. just doesn't sound like it changes was hearing same guy last night when I changed

For all those people having trouble with the wiring on the encoder, if you are using the info downloaded from the ARRL In-Depth website I suggest you stop trying to use that info. Go to the Zia

Use a pencil carefully and follow the wiring on the schematic, comparing to the figures. Easy to goof for sure. A simple VOM on AC mode will work. The output has both AC & DC levels. Assuming you have

I too, have questions on this same subject about the wiring between the 49-er and PCB board.? I assembled my?PCB board with the connecting pins for J2 and J3, exactly as pictured in the "QST in

Does the display change when you turn the encoder dial? When you PUSH the button does the display change? If not, it's just a simple hookup error of the encoder leads. (I made it too). Look carefully,

ok now that I have that all hooked up I chose the J2 Connection I can get the display to change frequency and I can hear my keying I also can hear some CW but it doesn't change when I change the

From the 49'er side: The lead closest to Q4 goes to pin 24 on J1 of the DDS board - that is the T/R connection. In the picture you posted, that is the right most terminal on the 49'er board. Decide if

I am new to this and I am looking all over trying to figure where to put the wires from the 49er j1 and j2 connector that we added to the vfo board. if I read correctly it says j2 hooks up to j2?? and

Ivan; I like your box, folks can see through it and see all of the neat stuff inside; besides, it works!? I put my original 49-er xcvr only, in a similar box, just smaller.? Mine had some dividers