User manual KENWOOD TS-450S SERVICE MANUAL

[. . . ] Equipment has now evolved with the appearance of multi-band models. In developing this new HF transceiver, Kenwood has boldly chosen not to follow this path, because we wanted to develop a transceiver unlike any other available. If we had developed a product along the same lines as the others currently in the market, the customers would not have found it a very attractive buy and few would choose it. This is why we wanted to develop a unique and attractive Kenwood product, something that would effectively serve to create a new market. [. . . ] This automatically terminates transmission after a set time. Useful as a failsafe for network (KNS) operations. You can change the frequency displayed by the transceiver to the operating frequency of the Transverter. Unlike the TS-570, you can set any frequency. Transverter output is fixed at 5W for the TS-570, but with the TS-450S you can choose output freely (within the transmitter's capability). RX IF filters DSP equalizers 17 18 19 DSP TX equalizer DSP TX filters Fine-tuning TX output TX control 20 DSP TX filter bandwidth 21 TX power output control 22 Time-out timer Transverter 23 Frequency when using transverter 24 Output power adjustment for transverter 30 Antenna tuner 25 TX hold when internal AT completes tuning In-line AT while receiving 26 27 External AT control method Linear amp 28 29 Linear amp control for HF band Linear amp control for 50MHz band VGS-1 constant recording After completion of tuning, there is still approximately 10W of output, so this is useful if you want to go on to tune the linear amp. The internal antenna tuner can also be used during RX. Depending on conditions, sensitivity can vary by enough to see a change in the S-meter. It can also reduce low-frequency interference. If you own an AT-300, you can connect it to the TS-450S; however, operation is limited by the capabilities of the AT-300. You can control the linear amp independently for the HF and 50MHz bands. And if the amp is not compatible with full break-in, you can add in a delay for the TX attack. (Be careful to ensure correct TX delay. ) PC data rate 56 External devices TX inhibit APO 57 58 59 Busy lockout APO (auto power off) function Select input for VOX VOX source 60 33 Functions that can be assigned to PF keys # 060 61 62 63 64 65 66 67 68 69 70 Assigned function MENU #0060 Voice1 Voice2 RX monitor RX DSP monitor Main encoder lock SEND key TX tuning LSB/USB toggle CW/FSK toggle FM/AM toggle Use The selected menu item can be called up directly, making this useful for menu functions that you often use. In addition to the automatic Voice Guide, you can have frequency and other displayed data read out when you press a PF key. S-meter reading is read out when you press a PF key. The squelch can be forced open for as long as the PF key is depressed. Useful for monitoring when setting CTCSS, etc. The TS-450S will receive using the widest passband available in that mode for as long as the PF key is depressed. This is a quick way to check on nearby interference. This prevents unintentional operation of the encoder when the transceiver is being used in a vehicle. There is no SEND key on the control panel, but this role can be assigned to a PF key. Irrespective of the current operating mode and power, this function allows you to transmit a continuous carrier at a fixed output. Useful for configuring external devices. [. . . ] Check that you are using a compatible operating system. Check that Voice is checked in the ARHP-10 setup window. If using a WAN, check that KNS will work locally over your LAN. If using a WAN, check your communications hardware and ISP settings. [. . . ]