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I didn't see Peter Parker's post until after my second post. Cheers.

I am familiar with #define bfo_freq (11998000UL). But this hardware hack acts exactly like the calibration mode in the wire up directions. I used a trimmer instead of ceramics because Peter said he

John Smith write The short answer is no. ?While there is interaction between the carrier oscillator frequency (which this mod changes) and the calibration or

when you made that mods you have changed your BFO-Freq, if you look inside the Raduino schetch you fin this line ?#define bfo_freq (11998000UL) if you find a counter you will have the right Freq for

I just now performed the Peter Parker improved audio hack with a 10 - 40pf trimmer cap and observed the following. Before soldering it on I set it for approx 27pf, and heard a noticeable higher

It showing you where the push to talk connections are which is basically the grounds of both mic and speaker connections that are connected together when you press the push to talk. So yeah basically

You connected the leads for the powersupply of the amplifier stage. I made this mistake initially. Ron - PA3FAT Sent from my iPhone

got there before me. CH340 drivers may work. I have FT232 UARTs in my Nano's

You can also do a crew test by testing the AC out on the coacts line. Set your multi meter to high-voltage key up the mic and talk. Sent from my iPhone

Find a websdr openwebrx close to you to see if you're getting out. Sent from my iPhone

I expect you are going to use Arduino Ide for a Raduino-board ! then you have to find and install a driver for Ch340 % CH341 chip used in many clear Arduino Nano from China

hi if i follow the steps for compiling and uploading for windows 7 ide all goes ok until i try tools/ports. it only offers me com1 and com2 NOT usb the upload obviously fails terry gm4dso

Thanks to the group for this thread, I just installed a 15-60 pf trimmer at C103 and adjusted for crisp receive audio and the transmit audio sounds great now! Hoping for some contacts tonight on the

Doug, I actually received the "Right" AD98590 module pictured in the listing from these two Ebay sellers: http://www.ebay.com/itm/172381520736 http://www.ebay.com/itm/180956144662 On the other hand,

My observation might be a confounding two cents, but here it goes. I don't hear the kilowatters other nights. We might be the QRMers stepping on their established nets or whatever. I think another

Just a reminder that the QSO night will happen this evening on 7277 in North America and 7177 elsewhere.? 9 pm local time.

here is a simpler way, 1. change the band pass filter to 28 mhz. take the tap off the antenna end of band pass filter, modify the sktech to work on 28 mhz and you have the base of your transverter

Good Idea...if I can remember it! I'm trying to limit the emails sent to the group. It should become less and less. Jack, W8TEE To: [email protected] Sent: Sunday, May 28, 2017 1:55 PM Subject: Re:

Doug, The “+” sign designates a part that is “RoHS” (lead free) compliant. Parts without the “+” sign have the same functionality. 73, Dale K9NN Sent: Sunday, May 28, 2017 1:35 PM To:

Jack, It might be easier for us to search for all the posts related to your board if we agree to suffix them the subject like with "w8tee vfo" or something. that way, the those how come in later will