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Author Topic: Kenwood TS 440s and software  (Read 3881 times)
WB1FFI
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Posts: 19




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« on: October 19, 2013, 02:22:31 PM »

Is there a cord that connects the Kenwood to the computer? If so, who sells it and where does it plug in to the Kenwood? I am slow to understand this technology. Thanks for any help.
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W8JX
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Posts: 5792




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« Reply #1 on: October 19, 2013, 05:25:13 PM »

440 is a pretty old rig. It needs a converter to connect a serial cable to rig, Not sure where you could find one but someone here might know. Newer kenwood rigs have a serial port on them. 
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W1CTC
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Posts: 4




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« Reply #2 on: October 20, 2013, 08:00:36 AM »

You will need a cable and the interface circuit installed in the radio. It was an option. You can still get them on Ebay but it cost $50-$100
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W9GB
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Posts: 2623




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« Reply #3 on: October 20, 2013, 03:00:47 PM »

Your Kenwood TS-440S HF Transceiver MUST have the IC-10 Option (IC-54, IC-55) installed.

The internal modifications consist of the installation of a pair of chips. These are shown in the schematics as IC 54 and IC 55, and install easily into sockets already present in the radio, on the back of the control unit circuit board.
These chips can be bought, with instructions, as the IC-10 Interface Kit from aftermarket retailers; they can also be bought via mail order, or at any good electronics store:

IC 54 is a uPD-8251-AC   Serial Communications Interface IC.
Commonly called an 8251A

IC 55 is a TC-4040-BP    12 Stage CMOS Divider IC
Commonly called a 4040

Installation of these chips enables an ASCII interface (TTL levels).
This interface is accessible through the 6-pin DIN connector ACC-1 on the rear of the unit. Though this may be connected directly to certain computers, or through certain interface cards, most users will need the addition of an outboard converter box to connect to the more common RS232C port. With the IC-10 interface, or equivalent, installed, the output at ACC-1 is as follows:

    Signals are at TTL levels, inverted (UART, NOT RS-232)
    Baud rate is 4800 (1200 Opt.)
    Format is  ASCII Serial;  1 Start, 8 Data, 2 Stops

The Baud rate may be changed to 1200 Baud by removing jumper W50 and installing a jumper from the left pad to the center pad as viewed from the front of the radio.
===
NEXT, you need to purchase a USB to Kenwood 6-pin Cable from known dealer.
Cables with the FTDI chipset (USB) are PREFERRED.

Quote
I am slow to understand this technology.

Amateur Radio is a STEM (Science, Technology, Engineering, Mathematics) hobby.
SEEK a Dealer, Local Club, or a Technically Competent Amateur for assistance.

w9gb
« Last Edit: October 20, 2013, 03:09:06 PM by W9GB » Logged
NI3S
Member

Posts: 67




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« Reply #4 on: October 20, 2013, 08:44:31 PM »

Maybe this would work?

http://www.piexx.com/index.php?main_page=product_info&cPath=7&products_id=23
http://www.piexx.com/index.php?main_page=product_info&cPath=7&products_id=63

I use a product from this company in my TS-140S, and it works flawlessly with any software I've ever tried.  

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W9GB
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Posts: 2623




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« Reply #5 on: October 21, 2013, 10:16:11 AM »

Quote from: NI3S
Maybe this would work with your TS-440S?
This Piexx accessory (IF-232USB) CAN work for the TS-440S, IF the ICs are installed.
Piexx does not state if they are using FTDI, Prolific, or Silicon Labs USB bridge chipsets.

Everything is WIRED inside the TS-440S to support, EXCEPT for the omission of IC54 and IC55.
In 2005, I updated/refurbished a TS-440S and I acquired those two ICs from Jameco.

Here is a complete web page, with photos
http://www.notpurfect.com/main/ts140.html#comp

Serial (RS-232 DE-9) adapter cable replaces old Kenwood IF-232
http://www.hosenose.com/store/productDetail.aspx?ProdID=5659&PrimaryCatID=45&
« Last Edit: October 21, 2013, 10:28:43 AM by W9GB » Logged
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