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 LDG IT-100 Modification? 
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Post LDG IT-100 Modification?
Hello
I have a LDG IT-100 tuner I use with my Icom 706mkIIg. I have just bought a Yaesu FT847 and would like to use the ATU with the 847 too. I know this is meant to be a radio-specific tuner but would it be possible to modify it somehow so I can use it with both radios?

Thanks

John :D


Sat Apr 16, 2016 2:44 pm
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 LDG IT-100 Modification? 
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Post Re: LDG IT-100 Modification?
not sure auto but give 12v hit tx and push manual tune button

ft847 and ft450 need specail commands tuner for them more expencive


Sat Apr 16, 2016 3:14 pm
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 LDG IT-100 Modification? 
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M0TTS wrote:
not sure auto but give 12v hit tx and push manual tune button

ft847 and ft450 need specail commands tuner for them more expencive


I'll give that a spin. I have wired in a 12v wire but have just realised when I tried the TX and bitton push, I was probably on SSB.
Doh!!!

Thanks :D


Sat Apr 16, 2016 3:40 pm
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 LDG IT-100 Modification? 
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Post Re: LDG IT-100 Modification?
Yes as said above.

Mode to FM, power to 20W, key the mic and hold the tune button in until it starts tuning. (long push)

The problem you will have is if you use it on different antennas, the memories might not be correct, so you will have to do a full tune each time.

If it is always the same antenna, tune it on all the bands, then it will just select the correct tuning from memory, doesn't matter which rig it is (that is assuming it just connects to the Icom with the 4 pin Molex plug)

You won't have to tune it with the Yaesu then.

As soon as you change antennas, you have to do a full tune each time for the antenna in use.

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Sat Apr 16, 2016 3:43 pm
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 LDG IT-100 Modification? 
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Post Re: LDG IT-100 Modification?
Sangoma wrote:
Yes as said above.

Mode to FM, power to 20W, key the mic and hold the tune button in until it starts tuning. (long push)

The problem you will have is if you use it on different antennas, the memories might not be correct, so you will have to do a full tune each time.

If it is always the same antenna, tune it on all the bands, then it will just select the correct tuning from memory, doesn't matter which rig it is (that is assuming it just connects to the Icom with the 4 pin Molex plug)

You won't have to tune it with the Yaesu then.

As soon as you change antennas, you have to do a full tune each time for the antenna in use.


I'm sure I've seen that I can make some type of plug in adapter that 'fools' the tuner into thinking that an Icom is attached. I may be wrong. I'll have another dig around.
I'm not paying over £200 for a specific 857 one.

Thanks for taking the time to reply.
:good:


Sat Apr 16, 2016 4:46 pm
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 LDG IT-100 Modification? 
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Post Re: LDG IT-100 Modification?
2E0DXK wrote:
Sangoma wrote:
Yes as said above.

Mode to FM, power to 20W, key the mic and hold the tune button in until it starts tuning. (long push)

The problem you will have is if you use it on different antennas, the memories might not be correct, so you will have to do a full tune each time.

If it is always the same antenna, tune it on all the bands, then it will just select the correct tuning from memory, doesn't matter which rig it is (that is assuming it just connects to the Icom with the 4 pin Molex plug)

You won't have to tune it with the Yaesu then.

As soon as you change antennas, you have to do a full tune each time for the antenna in use.


I'm sure I've seen that I can make some type of plug in adapter that 'fools' the tuner into thinking that an Icom is attached. I may be wrong. I'll have another dig around.
I'm not paying over £200 for a specific 857 one.

Thanks for taking the time to reply.
:good:


That wouldn't help even if it was so, which I haven't seen.

The Icom automatically turns its power down and changed to CW mode, the Yaesu has no such built in facility.

The Yaesu ones control the Yaesu through the CAT port, then put the rig back as it was when tuning is complete.

On the non-specific LDG tuners, you can set them to tune automatically when the SWR goes above a settable threshold, so then you can just talk and it will tune.
Not ideal, as you will be tuning at higher power than it's wise.

If you are going to keep the Icom, then you will want to keep the Icom tuner, so the Yaesu will be manual.

A generic LDG tuner needs a very simple cable to work on an Icom, but for the Yaesu you will still have to do it manually without an expensive interface.

You can make an Icom believe it has a tuner attached to it, then it will give a reduced power carrier to tune a manual tuner when pushing the tune button on the radio.

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Sat Apr 16, 2016 4:58 pm
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 LDG IT-100 Modification? 
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Post Re: LDG IT-100 Modification?
Making the Icom believe it has a tuner attached is probably what I've seen. Thanks for the info.
I'll try the TX and tune method as above and report back.

:D


Sat Apr 16, 2016 5:15 pm
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 LDG IT-100 Modification? 
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Post Re: LDG IT-100 Modification?
The 20w FM 'TX and long push' technique worked just fine.
Thank you!

John :yahoo:


Sat Apr 16, 2016 7:02 pm
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