Hi RD1AP / OH2FUW,
I have tried to find your name from QRZ but I could not find it. Sorry if I can`t address you personally.
Thank you for taking the time to share this fantastic modification with us. I know some years ago someone suggested that with a little skill it would be possible to solve this problem by modifying the filter. It appears that you have done this.
The shift register positions for the 0.1-200 mhz wideband TX are available from mods.dk November 28, 2005. I believe this is required too.
Just out of curiosity, could you state if the parts you used were 0402, 0603 or 0805, 50v or 200v? also did you model the filter on multi-sim or similar?
There would likely be a demand for this mod as the radio is so sensative on 70mhz RX. I can`t see an easier way to get a multi-mode radio with good TX and RX. (I am guessing you have tested to see if the 47 watts you are getting are really all going out on 70mhz. The ic-706 before it had a lot of people fooled when they saw 25watts going out on what they thought was 70mhz but instead was the IF frequency and 70mhz together around 140mhz.)
Thanks again for this information. This is the most fantastic modification I have seen for a 70mhz radio since Marc Vlemmings /PA1O, released BPF information on the FT-847. If it is repeatable then you will have made a lot of people very happy.
Thanks very much and 73`s
Last edited by MI0BDZ
on Sat 17 Mar 2012, 17:46, edited 3 times in total.