I just released Raduino v1.16, download it from

New in v1.16: CW SPOT button for zero beating

Connect a momentary pushbutton to Arduino pin D5. A SPOT tone will be heard when D5 is connected to ground.
By aligning the CW Spot tone to match the pitch of an incoming station's signal, you will cause your signal and
the other station's signal to be exactly on the same frequency (zero beat).

See Dave KE0OG's video at for a nice tutorial on how to use this feature.

73 Allard PE1NWL

Oops! I made a small typo:

Connect a pushbutton to Arduino pin D5. A SPOT tone will be heard when D5 is connected to ground.

It should be:
Connect a pushbutton to Arduino pin D4. A SPOT tone will be heard when D4 is connected to ground.

Sorry for causing any confusion!

73 Allard PE1NWL

Wow .. talk about great service ... I was just about to suggest that a SPOT function might be a great addition for CW.

?What I was also thinking is that it would be great if the tuning step size could be reduced when in CW mode so that rather than the
usual 100 Hz it is 50 Hz or even 10 Hz. Perhaps just when SPOT is enabled or maybe either with SPOT or RIT while in CW mode?
If their is code space maybe this could be made configurable in SETTINGS??

The only other feature that I think might be useful would be an option to enable Frequency Lock manually. ?I know that Allard has done this automatically
during TX, but I was thinking that would be useful on RX when operating portable or mobile. I have noticed that since I installed a 10 turn pot that it is much
easier?to bump the tuning off frequency. Even though I think this would also be useful on CW, perhaps one option to consider would be to use the same?
switch for SPOT and Frequency LOCK depending on the mode. So in CW, D4 to ground would be SPOT and in SSB it would toggle Frequency LOCK.?
Or a quick tap toggles LOCK on CW/SSB and holding for more than 1 second gives you SPOT while in CW mode ? ?I am just thinking out loud.?

Cheers

Michael VE3WMB?

On Sun, June 25, 2017 15:07, Michael Babineau wrote:

What I was also thinking is that it would be great if the tuning step
size could be reduced when in CW mode so that rather than the
usual 100 Hz it is 50 Hz or even 10 Hz. Perhaps just when SPOT is enabled
or maybe either with SPOT or RIT while in CW mode?
If their is code space maybe this could be made configurable in
SETTINGS?

Thanks for your suggestion. I also feel that the we need a smaller step
size for fine tuning CW signals. I'll look into it and see how we can
improve this.

The only other feature that I think might be useful would be an option to
enable Frequency Lock manually.

We could easily realize this in the software, but it would require an
extra switch connected to one of the remaining Arduino inputs that aren't
used yet. I'm a bit reluctant though because we have only few pins left
and we may need them in the future for other features.

Let me first look into the "fine tuning" feature, perhaps in the meantime
someone has a clever idea for the "lock" function.

73 Allard PE1NWL

Clever or not, here's an idea:

Tuning locks up whenever you transmit.
You can still adjust received signals with RIT, but your transmitted signal stays put.
Turning the tuning knob a significant bit, say 1khz, brings it out of lock?
and the displayed frequency suddenly jumps by that 1khz.
If all you wanted was to move by 50hz, you can then turn the knob slowly back
before transmitting again.

Seems the way I'd want it to behave, especially as those tuning pots get a little flaky with age.
Though it is rather weird.
Perhaps this feature should be an option that you must turn on within the calibration routine,
not turned on by default?

Jerry, KE7ER

Allard :

The Manual Frequency Lock is a "would be nice" feature. ?
I agree that it would be hard to justify using one of the few remaining, free?ports on the Arduino for this. ?
I think that the SPOT feature is much more useful, and even more so if you can implement a?
smaller CW tuning step. ?

Many thanks again for all of your work on making this wonderful little rig even better.

Cheers

Michael VE3WMB?

Using pin d5 might be a bad choice for future options, that's the only pin option for the freqcount library (input), and the impressive ultrasonic pwm'd version of tone (output).





Are there any other options?

Nevermind, see your typo post, sorry.

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