Yaesu FT-897 Transmit Frequency Expansion Mod (MARS/CAP)

[@wa4cdm]

Please note that this mod only to ft-897's units outside of Japan. The ones made for Japan are hard coded and will not respond to the mod for TX.

[@Lee_Adamson_OCF]

Good info~!

[@onedeadtony]

Lame. Can you explain hard coded to me please? Thx

[@onedeadtony]

Also, how do you know this?

[@wa4cdm]

@@onedeadtony The processor has rom inside that cannot be changed. Think of it as a one time programable memory.

[@wa4cdm]

@@onedeadtony From some research by others. Also The radios made for the market Japan are known for this. I hope this helps you.

[@zl1po844]

Note: the jumper numbering is labelled on the circuit board,to the right of the jumpers. My radio had factory jumpers on 1 and 8. I really did enjoy your witty explanation, Thank you sir from New Zealand.

[@toddshook1765]

Thanks for the demo. Love your outlook and sense of humor. Just picked up a 897d from our radio net auction with FC30 tuner. Just wanted to see how involved mod is.

[@Lee_Adamson_OCF]

Yee, it's not hard. You can do it! 👍

[@dang2157]

I like the video and your viewpoints!!!

[@SilverBeardGuerilla]

And people wonder why the 11m DX community love HAM radios . 90% of the operators I know run modded 10-12m radios or expanded Yaesus and Icoms . I've always found it funny how the manufacturers will build them this way with all the shitty regs involved , add some jumpers or a resistor , cut a jumper here or there and BAM . My newest radio is a AT6666 and all I had to do was push a couple buttons in the menu , smh , like a big old middle finger in the face of the FCC .

[@ampedupelectronics]

The blob doesn't need to be large and has no affect on performance on size...add SMD291 flux, for the chip resistor removal -- it will save you shaving off the PCB traces if you are a brute or don't have enough heat and is generally good practice.

[@Lee_Adamson_OCF]

It was a joke bro.

[@thepesh]

Hello Lee - can you tell me where i find this outside frame [installed on this radio]?

[@Lee_Adamson_OCF]

Portable Zero. Not sure if they still make this one or not though. They still have one for the 819/857 though.

[@thepesh]

Thank You - if have in stock i hope sending to UK.

[@GeorgeBartholomew]

Great video! Thank you. Where did you get the side rails for the FT-897? I've been looking high and low for a set!

[@Lee_Adamson_OCF]

Portable Zero is the name of the manufacturer.

[@onedeadtony]

Hey Lee, do you have any knowledge of if this would work on the Japanese model of this radio? The model that has reduced tx range and wattage? Thanks

[@Lee_Adamson_OCF]

If I recall correctly, I have read that the mods for the Japanese model are different, but I don't have any direct experience with that one. And I may be misremembering.

[@onedeadtony]

@@Lee_Adamson_OCF hey! Thanks for responding! I enjoy your “color commentary “ immensely! I’ll let you know how it goes!

[@onedeadtony]

Hey Lee, a follow up on my Japanese model 897 mars mod. I don’t think it’s possible. KZbin won’t let me post a picture for you, but the configuration is different and one jumper is non existent. Anyways, just fyi, hope all is well

[@onedeadtony]

Hey, kinda related, I blew the f 1001 fuse for the CAT putting a panadaptor board in her. Do you have a resource for those? Google can’t find any

[@ICONDLS]

How do you know if you have a Japanese version or US version radio?

[@Lee_Adamson_OCF]

I don't know. I suspect that you can probably tell from the serial number tag, but I don't have a Japanese version to compare it to.

[@BobBob-il2ku]

USA version will have a FCC id on the back tag sticker

[@ampedupelectronics]

Power is really low on Business band did you confirm the power out of band?

[@itrstt66]

why is it called mars/cap?

[@Lee_Adamson_OCF]

The original TX expansion mods were for 2m radios, which made them cover the nearby Military Auxiliary Radio System and Civil Air Patrol bands (both of which aren't really in use much as far as I can tell other than for business band comms). Modern radios are capable of transmitting on a much wider range of frequencies, but a lot of us still call it a "MARS/CAP mod" out of habit.

[@itrstt66]

@@Lee_Adamson_OCF fantastic