Mods for Yaesu FT-530
Dave G Shively
I am thinking of buying the Yaesu FT-530 dual-band hand held.
Does anyone know of any modifications for this radio?
In particular, I was wondering if the receive bandwidth could
be increased like on some of the Icom handhelds.
Any help would be appreciated,
Thanks,
Dave Shively KC4HUM d...@draco.larc.nasa.gov
Gene Wolford
: I am thinking of buying the Yaesu FT-530 dual-band hand held.
: Thanks,
: Dave Shively KC4HUM d...@draco.larc.nasa.gov
This is a compilation of modification information I received in response to
my posted query and the info faxed to me by Yaesu.
There are at least 2 board layouts out there.
Note that while the jumper pad numbers have not changed, the board positions
of the pads have.
YAESU FT-530
Expanded Receive 110-180, 300-500 MHz
Expanded Transmit 130-180, 400-458+ MHz
Expanded Recieve 800-950 MHZ
NOT LEGAL IN U.S.A - FOR EXPORT ONLY (The expanded transmit part)
o Keep that magnifying glass handy! 8-)
o Be aware that your repeater memories, ect. will be erased. :-(
o Remove Antenna and Battery.
o Remove four screws on bottom holding battery track.
o Remove the four (black) screws holding rear case.
o Slowly... open the front cover from tranceiver and lay both halves on
table.
o Note positioning of white paper insulator in right half of radio and
lift out
(don't throw away)
o Carefully locate Jumper Pad 13 and remove solder.
-----------------------------------------------------------------
o NOTE: If you wish to restrict transmit to the ham band,
Carefully locate Jumper Pad 15 and remove solder.
Otherwise, leave pad 15 in place.
-----------------------------------------------------------------
o Re-install white paper insulator, make sure ground tab slides through the
paper insulator.
o Close radio back up (Careful not to pinch the ribbon cable near lithium
battery when closing halves).
o Re-install the four (black) screws holding rear case.
o Re-install the four (small silver) screws on bottom holding battery track
to radio body.
o Attach Antenna and Battery.
o Turn off Radio.... Press and hold both arrow keys while turning on the
Radio.
o Modification Complete.
------------------------
| |
| |
| |
| |
| --- |
| | | |
| --- / rev. 12-21-92
| --- /
| | | / 2 (|) (|) 1
| --- / 4 (|) (|) 3
| / <--- Jumpers are here 6 (|) (|) 5
| o / 8 (|) (|) 7
----------------- Blowup ---> 10 (|) (|) 9
12 (|) (|) 11
14 (|) (|) 13
16 (|) (|) 15
------------------------
| |
| |
| |
| |
| --- |
| | | |
| --- / rev. 5-14-93
| --- /
| | | / (|) (|)
| --- / (|) (|)
| / <--- Jumpers are here (|) (|)
| o / (|) (|)
----------------- Blowup ---> (|) (|) __
12 (|) (|) 11 | | 6 pin mini IC
(|) 13 |__|
16 (|) [] 15
[]
Pad 15 now a vertical pad with a tiny
"zero ohm" resistor.
My rig got confused after this mod and it was neccessary to reset the
CPU. (The 70cm repeater offset register got fouled up and though it could
be incremented and decremented by the normal 50khz,
it went 0.01mhz, 0.06, 0.11, ect. instead of 0.00mhz, 0.05, 0.10, ect.).
Reset command: turn radio on while holding "MR" and "FM"
(Damn, memories erased again!)
Thanks
73's
Gene
KB7WIP
Gilbert Baron
>I am thinking of buying the Yaesu FT-530 dual-band hand held.
>Does anyone know of any modifications for this radio?
>In particular, I was wondering if the receive bandwidth could
>be increased like on some of the Icom handhelds.
Many mods are available. You can extend rx to 950mhz including cellular. You
will also be able to go down to the aircraft band. It is an easy task of
soldering 1 pad to get extended rx and xmit or two to get rx only. I say
easy but actually if you do not have VERY good eyes and a magnifying glas it
is quite a job. If you don't do it yourself they are charging over 100 to do
it at hmafest so think about this. It is a ripoff but it does save you from
destroying your radio.
Gil Baron, El Baron Rojo, W0MN Rochester,MN
"Bailar es Vivir"
PGP2.X key at key servers or upon request
ale_do...@hotmail.com
Alejandro LW7EEA
lw7...@hotmail.com