VL-1000 Linear Amplifier Interconnections

FT-950

Operating Manual

Do not install this apparatus in a mechanically-unstable location, or where objects may fall onto this product from above.

To minimize the possibility of interference to home entertainment devices, take all precautionary steps including separation of TV/FM antennas from Amateur transmitting antennas to the greatest extent possible, and keep transmitting coaxial cables separated from cables connected to home entertainment devices.

Ensure that the DC power cable is not subject to undue stress or bending, which could damage the cable or cause it to be accidentally unplugged from the rear panel DC input jack.

Be absolutely certain to install your transmitting antenna(s) such that they cannot possibly come in contact with TV/FM radio or other antennas, or with outside power or telephone lines.

Connection of Microphone and Headphone

Key, Keyer, and Computer-Driven Keying Interconnections

The FT-950 includes a host of features for the CW operator, the functions of which will be detailed in the “Operation” section later. Besides the built-in Electronic Keyer, two key jacks are provided, one each on the front and rear panels, for convenient connection to keying devices.

The Menu system allows you to configure the front and rear panel KEY jacks according to the device you wish to connect. For example, you may connect your keyer paddle to the front panel KEY jack, and use Menu item “037 A1A F-TYPE” for paddle input, while connecting the rear panel’s KEY jack to the keying line from your personal computer (which emulates a “straight key” for connection purposes), and configure the rear panel jack using Menu item “039 A1A R-TYPE.”

Both KEY jacks on the FT-950 utilize “Positive” keying voltage. Key-up voltage is approximately +5V DC, and key-down current is approximately 1 mA. When connecting a key or other device to the KEY jacks, use only a 3-pin (“stereo”) 1/4” phone plug; a 2-pin plug will place a short between the ring and (grounded) shaft of the plug, resulting in a constant “key-down” condition in some circumstances.