Yaesu 817 IF tap mod for panadapter?

The place to talk about specific amateur radio equipment and all types of accessories, fixes, repairs and modification.
Post Reply
User avatar
sickboy
Super Member
Super Member
Posts: 450
Joined: 09 May 2016, 23:07
Location: Scotland

Yaesu 817 IF tap mod for panadapter?

Post by sickboy » 11 Feb 2018, 20:53

I don't know why but I fancy having a panadapter display for my 817.
I've read about it on a few different blogs, and some say to put put the IF signal through a small buffer board like this one https://www.ebay.co.uk/itm/DC-12V-10KHz ... 1438.l2649, but then others are saying just to tap it using a 100pf ceramic cap and a 150 ohm resistor in series. The idea being that you then connect the 68MHz signal to an SDR dongle to use as a cheap 'n' cheerful panadapter.
Has anyone here ever tried this that can offer any advice? Is the buffer board necessary?

https://ve3ips.wordpress.com/2016/08/12 ... -6833-mhz/

http://www.geekshed.co.uk/yaesu-ft-817-if-tap-for-sdr/
Embrace your inner muppet !

User avatar
Kaos
Radio Addict
Radio Addict
Posts: 942
Joined: 14 Nov 2007, 06:53

Re: Yaesu 817 IF tap mod for panadapter?

Post by Kaos » 12 Feb 2018, 19:51

I have tried it on my 857 and was just pure overload.....So yes Buffer board would be recommended

I use my FT950 and the panadapter direct to the output IF for the DMU. With the tuner on the 40m long Di-pole its great.

User avatar
sickboy
Super Member
Super Member
Posts: 450
Joined: 09 May 2016, 23:07
Location: Scotland

Re: Yaesu 817 IF tap mod for panadapter?

Post by sickboy » 12 Feb 2018, 20:50

Thanks for that. I'll order the buffer board, but knowing me, by the time it comes from China I'll have a different radio :)
Embrace your inner muppet !

User avatar
KlondikeMike
Regular
Regular
Posts: 54
Joined: 06 Jan 2014, 03:59
Call Sign: 9WR2000
Location: Edmonton, Alberta, Canada
Contact:

Re: Yaesu 817 IF tap mod for panadapter?

Post by KlondikeMike » 13 Feb 2018, 00:56

I ordered a couple of these just before Christmas and they just recently arrived. I had a similar project in mind. The construction and quality look pretty good with the caveat that I have not tested them yet and they are from China.
9WR2000

Post Reply

Who is online

Users browsing this forum: No registered users and 3 guests