Hi all,
Im trying to get my Ft-817 all set up to take to my condo in Caye Caulker Belize. Ive been experimenting with lots of antennas and I think Ive got that all taken care of now. I have a 45 watt amp coming in about a week and it comes with a cable to plug into the Accessory jack in the back of the radio. I presently have my Cat control cable installed there. If the amp goes there then I will lose cat control. I assume the cable supplied by the amp is so it can follow the bands as you change them on the radio? Im thinking I dont actually need that, I can change manually, but would rather have computer control of the radio. How is anyone else taking care of this issue? I am using a Yaesu SCU-17 digital interface with the radio as well. I noticed it has a PTT jack in the back. If I were to eliminate the control cable supplied with the amp, could I just hook the PTT from the amp to key it up from the PTT jack on the SCU-17? I did find an article for a guy using a breakout box on his FT-857D but it is different than my 817. Any help/advice would be greatly appreciated.
Thanks-Bob W0YBS

I think the 857 is similar enough.
I think the key is to have a 'pass thru' interface in the linear.
Basically a receive only interface.
Two gadgets can't talk on the line 'without a lot if smarts'.
Surely there's a way to get it going. Sorry I can't be of more help.
Good luck

73, Bo W4GHV since '54

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On Mon, 25 Nov 2019 08:35:40 -0800
"Robert Sauvan" <rsauvan@...> wrote:

I have a 45 watt amp coming in about a week and it comes with a cable
to plug into the Accessory jack in the back of the radio. I presently
have my Cat control cable installed there. If the amp goes there then
I will lose cat control. I assume the cable supplied by the amp is so
it can follow the bands as you change them on the radio?

You haven't stated the brand of amplifier.
Mine only works when in transmit, and the cable is sending the transmit
signal to the amp.
Certainly if I forget to plug it in I don't get many contacts ;)

Liz
VK2XSE

Yep, I just found one of the cheap cable splitters on eBay. Haven't used it yet, since the FT-818ND has been diverted to packet.
Noting the available amps for the 817/818 most do not have the pass thru. My buddy has one that does.?
If they have physical band switching and a "PTT" you should be ready to go.
Good luck

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The amp I have coming is a MiniPA50.

Thanks-Bob-W0YBS

On Mon, 25 Nov 2019 08:35:40 -0800
"Robert Sauvan" <rsauvan@...> wrote:

I have a 45 watt amp coming in about a week and it comes with a cable
to plug into the Accessory jack in the back of the radio. I presently
have my Cat control cable installed there. If the amp goes there then
I will lose cat control. I assume the cable supplied by the amp is so
it can follow the bands as you change them on the radio? 

You haven't stated the brand of amplifier.
Mine only works when in transmit, and the cable is sending the transmit
signal to the amp.
Certainly if I forget to plug it in I don't get many contacts  ;)

Liz
VK2XSE

-- 
Thanks
Bob Sauvan-W0YBS/V31CO
rsauvan@...

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I believe it does so hopefully it will be a simple fix.

Thanks-Bob-W0YBS

Yep, I just found one on eBay. Haven't used it yet, since the FT-818ND has been diverted to packet.
Noting the available amps for the 817/818 most do not have the pass thru. My buddy has one that does.?
If they have physical band switching and a "PTT" you should be ready to go.
Good luck

--
Thanks
Bob Sauvan-W0YBS/V31CO
rsauvan@...

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That would be a great item for sure but they sure are pricey. Im going to look for a cheaper alternative. For that kind of money if I dont have cat control it might not be a big deal. It would be nice to have the amp here to see what it needs exactly. Hopefully soon.

Thanks-Bob-W0YBS

You might want to look at the bhi LTD. CAT MATE. It is designed for the FT-857, 897 and 817 to connect 2 devices to the CAT port.

On Nov 25, 2019 2:19 PM, Bo W4GHV <bobarr@...> wrote:

Yep, I just found one on eBay. Haven't used it yet, since the FT-818ND has been diverted to packet.
Noting the available amps for the 817/818 most do not have the pass thru. My buddy has one that does.?
If they have physical band switching and a "PTT" you should be ready to go.
Good luck

--
Thanks
Bob Sauvan-W0YBS/V31CO
rsauvan@...

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--

Thanks

Bob Sauvan-W0YBS/V31CO

rsauvan@...

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I have an amp. I just need some type of cable to run cat control and the amp from the accessory jack in the back of the radio. This past post was in reference to a box built by a company to do just what I want but they are pricey. May just need to build something myself.

Thanks-Bob

Go and find a cheap CB amp.? They will work from DC to 50MHz at least.? You will likely need a bandpass filter for them.? They’ll take 2 or 3 watts and produce 100W.

?

73, Clint, VE3CMQ

?

From: [email protected] [mailto:[email protected]] On Behalf Of Robert Sauvan
Sent: November 25, 2019 2:24 PM
To: [email protected]
Subject: Re: [ft817] Simultaneous use of Cat Control and Amplifier

?

That would be a great item for sure but they sure are pricey. Im going to look for a cheaper alternative. For that kind of money if I dont have cat control it might not be a big deal. It would be nice to have the amp here to see what it needs exactly. Hopefully soon.

Thanks-Bob-W0YBS

On 11/25/2019 01:00 PM, ka0kaf@... wrote:

You might want to look at the bhi LTD. CAT MATE. It is designed for the FT-857, 897 and 817 to connect 2 devices to the CAT port.

?

On Nov 25, 2019 2:19 PM, Bo W4GHV <bobarr@...> wrote:

Yep, I just found one on eBay. Haven't used it yet, since the FT-818ND has been diverted to packet.
Noting the available amps for the 817/818 most do not have the pass thru. My buddy has one that does.?
If they have physical band switching and a "PTT" you should be ready to go.
Good luck

?

--

Thanks

Bob Sauvan-W0YBS/V31CO

rsauvan@...

--
Thanks
Bob Sauvan-W0YBS/V31CO
rsauvan@...

Make sure baud rates match I got bit on that

Thanks
Bob Cavanaugh
AG6YK

Here is a site that is hosting a file I sent to him a couple of years ago that addresses this very topic.?

https://vk2qr.wordpress.com/2014/11/25/mx-p50m-hf-amplifier-review/

The original file was a .pdf I created after finding a website that had the plans for this cable.? The original site is no longer up and the original author, Charles Socci is SK.

Here's a direct link to the file:

https://vk2qr.files.wordpress.com/2014/11/simultaneous-use-of-cat-control-and-linear-amplifier-on-yaesu-ft-857d.pdf