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Re: need a new pc ??
Just to clarify I am comparing the Pi for $10 with an Arduino, you still need to add the cost of the shield but even without the shield you'd need at least an LPF either way and the shield gives you a
By Doug W · #56233 ·
Re: Low Receive Audio
OK, so transmit works well on both CW and SSB. I assume that's transmitting into a dummy load. What kind of antenna do you have? These are made to work with a good efficient and resonant antenna
By Jerry Gaffke · #56232 ·
Re: need a new pc ??
I missed responding to that part of your post.? I am currently running it as a WSPR beacon in my detached garage.? I am using the shield from TAPR.? I can remote into the ZeroW with my phone via
By Doug W · #56231 ·
Re: S-Meter on Ubitx, trying to get to work..
Yes I did, but I don't know what to put in the various squares after that for values. Kevin
By Kevin Rea <reakevinscott@...> · #56230 ·
Re: Low Receive Audio
Both CW and SSB are making rated power.
By Terence Taylor · #56229 ·
Re: Low Receive Audio
I assume you are checking for power out in CW mode. Does the transmitter work in SSB mode? That would prove out the modulator/demodulator, the 12mhz crystal fllter, and the 45mhz crystal filter. None
By Jerry Gaffke · #56228 ·
Low Receive Audio
Just finished wiring up my V.4 kit from Farhan. I have the EXTREMELY low receive issue. I have rated power output on transmit and very loud CW sidetone audio. What RX audio that I can hear (from a
By Terence Taylor · #56227 ·
Re: S-Meter on Ubitx, trying to get to work..
Have you enabled the S meter in the Ubitx Memory Manager?
By M Garza <mgarza896@...> · #56226 ·
Re: need a new pc ??
Here is an interesting library that lets you control the Raspberry Pi GPIO pins with much the same simplicity as the Arduino I/O library. http://wiringpi.com Tom, wb6b
By Tom, wb6b · #56225 ·
Re: Harmonic performance - SSB vs CW
It also has considerably more memory resources and external interrupts. The Mega 2560 Pro Mini also has a smaller footprint than the standard Mega, which could save a few nano acres. Jack, W8TEE
By Jack Purdum <jjpurdum@...> · #56224 ·
Re: No email
Its up.
By Arv Evans · #56223 ·
Re: Harmonic performance - SSB vs CW
John KC9OJV Very possible, and possibly an interesting project. The Arduino has I2C data interface which could be used as master and slave to allow one to send control signals to the other. There are
By Arv Evans · #56222 ·
Re: need a new pc ??
That's why I paid $10 and got it with onboard wifi. I run it headless via PuTTY or VNC. ? ? -- www.bitxmap.com ( http://www.bitxmap.com )
By Doug W · #56221 ·
S-Meter on Ubitx, trying to get to work..
Hi guys,? I built the little s-meter circuit at this page: http://www.hamskey.com/2018/06/creating-simple-s-meter-sensor-for.html I have checked my wiring 3 times, and it all looks like it is
By Kevin Rea <reakevinscott@...> · #56220 ·
Re: BITX40 LPF mod
It is possible to use a square wave as the signal source in a VNA. I looked hard at the N2PK VNA a few years ago, that is a sine wave source into the DUT, and the signal out of the DUT is inspected by
By Jerry Gaffke · #56219 ·
Re: Harmonic performance - SSB vs CW
What is interesting about the spectrum analyzer screenshots is the harmonics do not get progressively weaker with increasing frequency.? There is a lot of current flowing across the board to the
By Tom, wb6b · #56218 ·
Re: Harmonic performance - SSB vs CW
You could, send commands to it via serial (2 pins clock and data). ? Using? 2 pins and a 74166 would get you 8 outputs and potentially 8 inputs too if you add a 74165. Or the same two could go into
By ajparent1/kb1gmx · #56217 ·
Re: need a new pc ??
With an appropriate license, of course?
By Mark Phillips · #56216 ·
No email
Is the list down?
By RICHARD <k6kwq@...> · #56215 ·
Re: need a new pc ??
You paid too much,? I picked it up for $5. Not sure what to do with it, and it needs special mating cables to use it. If you have an interesting project for it that can't be done with an Arduino, I'd
By Howard Fidel · #56214 ·