What can I do with a Kenwood ts-440?

I use it quite extensively for 95W digital modes and once restored well, a TS-440S could do FT8 or JT65 for hours at a time without breaking a sweat. There are a slew of websites covering a variety of TS-440S modifications and issues.

What do you need to repair a ts440s?

Tools needed: A good DMM (Digital Multi-Meter), Set of Small regular Screwdrivers, small phillips screwdriver, magnifying glass of some sort, Fine tipped 25W solder pin, Solder, tweezers, pick, plenty of light, and a large work table / area. This is the TS-440S with no top cover. You can see the IF Board.

Which is the single filter position on the ts-440?

Alignment: Supply a signal to the receiver. Set the TS-440S’ selectivity switch to M2, the single filter position.

Where is the attenuation pad on the ts440s?

The TS440S has an attenuation pad hard wired on the spectrum between 500KHz and 1600KHz. You can open up sensitivity by removing it. On the RF unit board, clip a lead on R13 68 ohms), clip a lead on R14 (68 ohms), and solder a jumper across R12 (220 ohms). These are under a shield held down by screws on the RF board.

I use it quite extensively for 95W digital modes and once restored well, a TS-440S could do FT8 or JT65 for hours at a time without breaking a sweat. There are a slew of websites covering a variety of TS-440S modifications and issues.

Why does the TS440 show only dots on display?

Possible cure for TS440 showing dots only on display The most common reason for the the display to show only dots, is that one of the phase locked loops is not locked. So take of the top cover. You will be looking at the IF unit. This board is mounted in a hinged frame. It hinges on two screws near the front pannel sides.

Is the Kenwood ts-440sat a triple conversion radio?

The PS-50 matches the radio and they look really great together. The receiver on the TS-440SAT is a synthesized triple conversion superhetrodyne design. I found it to be very sensitive and could pick out some weak stations, but also noticed that noise was bigger problem than on some other radio designs.

Is the Kenwood ts-440 a Legends of ham radio?

The Kenwood TS-440 is one of the legends of ham radio. Over 600,000 of these radios were produced in the early eighties (this number has been disputed, so I am doing some more research – if anyone has verifiable production numbers I would appreciate the information and the source), giving it the largest production numbers of any HF ham radio.