Kenwood TS-480 User Manual

10 SPS (separate power sources) [TS-480HX only] SPS is shorthand for “operating at 200W using two 100W 13.8V power sources.” To generate a 200W outpu

11 Failsafe device (some TS-480HX versions only) The use of two power supplies and two final amps in parallel is something that has not been tried be

12 Fig. 4: 200W final section Fig. 5: 100W final section with antenna tuner

13 FM circuit There were two approaches used for the FM circuit of the conventional all-mode transceiver. Either there was a dedicated modulation cir

14 ● RX circuitry Front end As explained in the section on development objectives, what distinguishes the TS-480 Series are incomparable features and

15 How well does it actually perform? Fig. 8 is a graph illustrating the dynamic range characteristics when changing the separation of two interferin

16 filter – reflects a difference in the manufacturers’ approach to design from the antenna to the 1st mixer. It is not just the mixer that determine

17 Jumpers for joy As with the TS-2000, something special has been provided for both the BPF ATT in the BC band and the regular ATT:  The BPF ha

18 Circuitry after the roofing filter Except for FM, the TS-480 has a double super: 1st IF is 73.095MHz and the 2nd IF is 10.695MHz. For FM, there is

19 Whereas the TS-570 provided only a single slot for installing an optional filter, the TS-480 has two slots, meaning that two of the three filters

2 Preface This in-depth manual for the TS-480 was written by the engineers who actually planned and designed the product. It is our hope that this gu

20 Auxiliary Features In addition to the basic TX/RX circuitry already described, the TS-480 is equipped with a number of auxiliary features of consi

21  TX tuning is a handy feature to have. It outputs a low-power continuous carrier for adjusting a screw-drive or similar antenna. It allows you to

22 Features of the Built-in DSP ● DSP circuit The digital signal processor equipped on the TS-480 is the 16-bit fixed-point TMS320VC5402 from Texas I

23 First, the input signal is divided into its low- and high-frequency components. Ignition and other pulse noise tends to be concentrated in the lat

24 Fig. 15: NR OFF Fig. 16: NR1 ON Fig. 17: NR2 ON

25 ● Beat cancel Beat cancel (BC), as its name implies, is designed to cancel unpleasant beat interference. Like NR1, it uses adaptive filter technol

26 Interference Interference Target signal Interference Interference Target signal Low-cut Hi-cut Fig. 20: Slope tune in action ● RX DSP filte

27 Listed below are the filter bandwidths (unit: Hz) that can be chosen; default values are shown in bold. CW WIDTH 50 80 100 200 3

28 ● RX equalizer & TX equalizer If you use the RX equalizer it is easy to adjust RX audio quality. Take your pick from flat (default), high boos

29 Tips As with other Kenwood HF transceivers, the TS-480 provides menu access to its many features. By selecting and adjusting these features, you c

3 Design Objectives Determination to create a unique transceiver The concept of a compact HF transceiver first saw the light of day with Kenwood’s TS

30 12 Beep output level You can adjust this to suit your preference. 13 Sidetone volume For full break-in, it is easier to hear the sidetone if you

31 25 TX hold when internal AT completes tuning After completion of tuning, there is still approximately 10W of output, so this is useful if you wan

32 33 Keying priority over playback Without switching off the repeat playback for messages, you can start keying. 34 CW RX pitch / TX sidetone fre

33 48 Assign PF keys on the control panel You can assign functions to the PF keys on the control panel as detailed in the separate table. 49 Mic PF

34 ● Functions that can be assigned to PF keys # Assigned function Use 0～60 MENU #00～60 The selected menu item can be called up directly, making t

35 71 TF-SET 72 Q MR 73 Q MI 74 SPLIT 75 A/B 76 M/V 77 A=B 78 SCAN 79 M >V 80 M.IN 81 CW TUNE 82 CH1 83 CH2 84 CH3 85 FINE 86 CLR 87 MTR 88 MHz 8

36 ● Making menus easier to use Menu switching There are so many different menu selections and parameters to choose from that it is impossible to rem

37 Structural Features ● Internal structure of the main unit The internal structure of the main unit is straightforward: employing a die-cast aluminu

38 ● Cooling In developing the TS-480HX, the most important issue when it came to structural design was how to arrange for sufficient cooling. In ord

39 The TS-480HX is equipped with 4 final transistors (2 in the case of the SAT model), and the heat produced by these disperses through the die-cast

4 Standalone control panel For mobile operations, a separate control panel is ideal, but what if the transceiver is also to be used as a base station

40 Now let’s have a look at the rise in temperature of the different parts when the TS-480HX transmits continuously (14MHz) for 30 minutes at 200W. T

41 Fig. 32: Temperature rise measured at center of the upper case of the main unit As you will appreciate from these results, despite the

42 ● Standalone control panel In the compact size range, virtually all transceivers are designed so the control panel can be removed and replaced. Wh

43 New Option: Voice Guide & Storage Unit (VGS-1) Developed at the same time as the TS-480, the VGS-1 can be installed as an option. Combining in

44 ● Voice Guide Kenwood’s Voice Guide function is not the same as the basic versions fitted in some transceivers merely to announce the frequency. O

45 6. VFO mode, direct frequency entry Let us say you are operating at 7.033MHz and in VFO mode you press the PF key, the Voice Guide will announce “

46 New Option: ARCP-480 (Amateur Radio Control Program for TS-480) Freeware Kenwood’s ARCP software has proven very popular. For the TS-480 we have m

47 2. Changing memory and registered details You can change any registration data from the appropriate window. You use this window when storing new d

48 4. Reading and writing files With ARCP-480 you can write memory channel and menu data to a file for later recall. This does not apply in certain c

49 When the system is operating, RX audio and the commands that control ARCP are sent from the host PC, along with the TX audio and commands controll

5 Adding appeal to fixed station operations It is now increasingly common to see a PC sitting beside the transceiver in the shack, but we wanted to

50 communications and the operating system on either end is compatible, check the Voice box. (It is possible to enter the description using double-by

51 Using a broadband router Many people using the Internet today use a broadband router (hereafter referred to simply as a router), but in order to u

52 New Option: ARHP-10 (Amateur Radio Host Program) Freeware ARHP-10 is the host application for use with the Kenwood Network Command System. As wa

53 3. Adjust PC volume Whether hosting via a WAN or within a LAN, it is recommended that you test your setup at least once using a KNS environment ar

54

55 ● Troubleshooting Listed below are typical problems that you might encounter. Network & Operations Problem Solution Is it possible to use an

56 I cannot get KNS to work over the Internet connection that is provided as a collective service to my apartment block. It is possible that one of

57 Sound Problem Solution The sound does not get through (host PC). First check that the audio cable is connected properly.  Check what audio inpu

58 Check that the computer can produce sound; update drivers as necessary.  Connect a microphone to the computer and bring up the recording control

TS-480 In-Depth Manual Published in April 2004 by Kenwood Corporation Communications Equipment Division Unauthorized reproduction is

6 Development Objectives for the TS-480 Series The following is an explanation of our development objectives, distinct from the planning objectives.

7 Focusing on HF Raising power output and adding an antenna tuner are both moves in the right direction, but limiting the transceiver to the HF bands

8 Circuitry ● TX circuits 200W final section Explained here is the circuitry for the 200W final section, the crown jewel of the TS-480 Series. This c

9 Fig. 1 illustrates TX IM characteristics with 200W output at 14MHz, while the second graph (Fig. 2) charts high-frequency spurious emissions. Fig.