ICOM IC-7300 at the 2016 Dayton Hamvention®

Bring back the 7200--backlight the keypad displays. Make it 10/6FM capable, add 2m/440, and optional upgrades for 220/900/1.2. Make it ALL MODES on ALL BANDS. Add in a detachable, remotable face plate, then we have a winner!

 

I put my new IC-7300 next to my IC-756PROIII...If to be honestly, PROIII is better at all.

 

Here's one just for the IC-7300.

http://lexerd.com/epages/9d0561f3-d...08-49e2-8b10-bd6603baf101/Products/9-5s5-4yjb

 

I will order that as soon as my 7300 comes in. Wonder WHY they call the 7300 a GPS?? that alarms me

 

That is one day to do it.
I would be more likely to do it all analogue.

Why....

Just Because.

 

I just want to know why I never see any of these radios taken apart and the guts scrutinized like the test equipment videos I watch.
I guess too many are afraid of taking their radio apart.
Hell...
Even the ARRL use to show internal pictures when they did equipment reviews.

 

You can download the IC-7300 service manual here.

http://www.mods.dk/manual.php?brand=icom

It has annotated photos.

 

I hate mods .dk.
Oh well finally got logged in
Thanks....

 

Well....
Icom has good taste in FPGAs

 

Gotta wire up a switchbox now for the 7300 for keying the KILLERWATT

 

I pay $18 a year to mods.dk so I can get all the manuals I could want. I just downloaded it, I coulda sent it to U, but it mighta been too big a file for email

 

what I am interested in, thanks for that SERVICE MANUAL link, is the circuit for the band data output
A we can see here, IC791 goes directly to Pin 5 on the 13 pin socket

so there is a 470 protection resistor on the output of the op amp. That is going to be supplying the 0 to 8VDC levels which specify the band.
I just ordered a 13 Pin DIN (I probably could have gotten it a WILLYS) so that is coming. Once I get the 7300 I can make precision measurements with my LAB DMM on what the voltage for each band is. I will publish that here on QRZed.
Then I hafta figure out how to scale it for the Arduino Nano. I am not sure yet how to use the Analog inputs on it. Maybe it only goes to 5V, I don't know. WE will follow the learing process as I build the switch box for selecting a 160M/LOW HF/ MID HF,/WARC/ 6M antenna port on the box.
This would be a GREAT QST article (or QEX) unless someone beats me to the punch
as the biggest complaint so far is only 1 antenna port on the 7300

 

The project is expanding!! Included in the unit will the HF linear Keying circuit, a TNC/SIGNALINK interface and the 5 position auto coax switch

 

here we see how Pin 1 reference voltage is generated.

The 8V is buffered by the 2nd part of IC791 to provide an 8 Volt reference voltage going to Pin 1

 

Sounds like you have the 7300 BUDDY (a good name for this project) on the road.
The 7300 BUDDY will have....
Auto antenna switching
Linear keying
TNC interface
Anything else????