I am also interested - thanks Marcel

Andy
G0BZW

The display input connects to the Yaesu tp02 on the AF/IF board, the positive supply to the terminal strip that supplies the lighting, the negative lead grounded. The display will come on/off with the panel lights. Dead simple. just 3 wires.

Hello,

A few months ago, I've started to make a digital readout for this beautiful radio. After a few new versions, it's ready.
Because several people asked me for it, I've made a complete kit, including mounting hardware and a decent manual (20 pages).
It replaces the S-meter, so no big hardware change. Within 20 minutes, you can bring back the FRG-7 to its original state.
It has adjustable offset for LSB and USB and the AGC characteristic is included in the software. The digital S-meter is more accurate now.
If someone is interested, I sell it on ebay.

Marcel
PA8MA
.

A very good project Marcel..
Just a suggestion, all the aftermarket add on readouts seem to ignore the megacycle frequency part, when this is very easy to? include.
The Mcs counter only needs a simple prescaler , for example,? ?CMOS HTC7490 divide by 10 connected tp TP101 via a simple buffer amplifier. You already have unused gates in the 7414, that can be used, just? change this to pin compatible? HCT version because of speed This will give? an output frequency of 5.5 mHz to 7 mHz easily counted by the Arduino. Its only the first two digits are required and sent to the left hand display. The second count then takes care of the kHz as you have already done..
So, count up the 5.5 to 7 mHZ prescaler output, subtract the 5.5 mHZ? IF offset, latch and display the two? most significant? digits, then count and display the four kHZ digits, as already done.. By monitoring the "lock"? LED, the Arduino could blank or flash? the mHZ display to indicate mistuning .
?To add this to your existing design would involve only one more IC package, and a slight rework of your PCB, and some extra code.

开云体育

On 2023-11-13 13:23, Marcel, de PA8MA wrote:

Hello,

A few months ago, I've started to make a digital readout for this beautiful radio. After a few new versions, it's ready.
Because several people asked me for it, I've made a complete kit, including mounting hardware and a decent manual (20 pages).
It replaces the S-meter, so no big hardware change. Within 20 minutes, you can bring back the FRG-7 to its original state.
It has adjustable offset for LSB and USB and the AGC characteristic is included in the software. The digital S-meter is more accurate now.
If someone is interested, I sell it on ebay.

Marcel
PA8MA

Kit:???

Hello Marcel,

This looks great.

I'm very interested, so please would you be so kind as to post the eBay link or item number so I can see it?

Also, do you ship to the UK?

I did a Worldwide search for "FRG-7 digital readout" but found nothing.

Many thanks.

开云体育

Pentagrid, thank you for your nice idea. I will have a look at it. That would be a nice upgrade for version 2.0.
I'm also busy making the readout complete wireless, using 2 times the ESP8266 or ESP32. So you don't have to change anything at the FRG, just placing a small PCB and making some connections to the VFO, power supply, mode switch and S-meter.
And you can place your display where ever you like.
But that will be something for the next year.?

Marcel

Just a short update about the Ebay link.
The previous link has disappeared because I ran out of stock.
This is the new one for someone who is interested



Regards, Marcel

And if you would like to see the digital readout in action, here is a Youtube link:

73, Marcel de PA8MA

Hello,

For someone who is interested. I've posted a short video on Youtube with the right alignement procedure for the LSB and USB offset.


Have fun and enjoy the FROG 7.

Marcel