Expanded TX mod for FT-1900R

[Cat Driver]

Can't get into dk mods to ck for the mod

 

[Moleculo]

Here you go:

• remove the 3 screws on the front panel(display)
• remove the display from the chasis.And take care for the flat cable.
• Find the 3 jumpers near the CPU.
• normally 1 and 2 are open and 3 in close.
• open 3. if 1 anf 2 are close open them.
• screw back the 3 screws
• press and hold DW/REV and A/N and MW and switch on the RADIO
• press D/MR ........and enjoy.

 

[Cat Driver]

Thank You Sir....

 

[ke7vvt]

What does said mod do?

 

[Moleculo]

Enables out of band transmit.

 

[Geekster]

I just purchased this model at Hamfest today. I may have to try this mod.

Thanks.

 

[nadika]

Hi Moleculo

I could not locate the jumpers please help me. I have attach a image too. is it the one I have mark in the picture?

<a href="http://tinypic.com?ref=2wflqn9"

Thanks in advance

Nadika

 

[Happy_Hamer]

Hi Moleculo

I could not locate the jumpers please help me. I have attach a image too. is it the one I have mark in the picture?

Thanks in advance

Nadika

You are correct

 

[nadika]

Thanks Amin and Moleculo

first time it didnt work but when I clean the jumper again it worked

Thanks
Nadika

 

[burhead]

how do you open #3

ok, I am looking at buying this radio if I can do this modification however I am not a radio guy. When you say you open 3 do you just take a screwdriver and turn it? I dont see a slot on #3 in the pic's so I am a little unsure of how to "open". Any assistance would be greatly appreciated then I will feel more comfortable in purchasing this model to use it for 5 specific channels that I use on my fm hand held radios

 

[TonyV225]

No 1 2 and 3 are solder pads as you see 1-2 are not joined or connected they are sepearate 3 is solered closed . You half to make a gap in the center to seprate as 1-2 are som people use an exacto knife for final cleaning t make the solder gap and get rid of the solder bridge (conection) between the 2 halves.

 

[eagle1911]

yeah, you have to use a soldering iron to melt the solder on pad 3. The pad is divided into 2 halves as you can see from the other two pads in the pics, so once you melt the solder you should see that. In my experience with my ft-2900r (same process) just melting the solder is usually enough to get it to stop bridging between the 2 halves. Worst case is that you'll have to get some desoldering braid (cheaply obtained from radio shack) and use it to remove some of the solder on the pad which will remove the bridge.

 

[cb900f]

I made ​​the expansion of the TX of the radio, it does not work as before ARS spacing that is used on bridges, does anyone know how to restore it?