Are there any mods for the Yaesu FT736R?

 I modified mine.  There's a catch tho - the mod involves adding a pair of
switches  to  the  module-address  lines into each of the rf modules..it's
kinda funky but it does work.  Look at your schematic, then  wire  up  the
switches  such  that  your  6m  and 2m modules *think* that they're 440MHz
modules!  The trick then is to look at the display, which reads 443.000,
and mentally adding 6.0 such that you know the real frequency is 49.000MHz.

 Similarly, the display will read 445.000 when the 2m module is really  at
145.000.  When  you finish adding the switches, you'll have to powerup the
'736 with the switches in the 'extended range' position.  Then use one  of
your existing memory frequencies, transferred to either the A or B vfo, to
then bandswitch up or down to the  440  band.  Bingo!  If  you  goof,  the
display  will  read "error".  Start over by powering down, and then repeat
the procedure. Sometimes the frontpanel logic will simply lock, just start
over and it will eventually work. Mine never takes more than 2 tries. With
the switches in the 'normal range' position the '736 will function as a
stocker.

 The range for the 6m unit is therefore 46-56 MHz, and the 2m unit will
give you 140-150 MHz. Yes, the transmitter will also work this span, but
keep in mind a 10 watt signal on the 49 MHz band sticks out like a sore
thumb! ;-) ("Wow! Listen to *that*! He must have a better walkie-talkie
than these RadioShack junkers!") ;-)

 My attempts to modify the range on the 430 MHz rf module  have  not  meet
with  much  success, and a careful look at the schematics/numbers tell the
story quite well; The module covers 430-440,  a  10MHz  range.  Therefore,
the  address-line  trick  will yield no more coverage.

 Have Fun, 73! --
-Avatar->  KB6LUY           +-------------------------+