ELECRAFT KX3 Especificações

1 The Elecraft KX3 and One Amateur’s Weekend Project: A Guide to KX3 Mobile Installation and Operation Matt Zilmer, W6NIA 23 November, 2012 ‐ Rev B

10 AWG Ω / kft (km) L in ft (m) Current Load Volts Use Case or Example 14 2.58 (8.51) 6 (2) 2A 13.7 KX3‐only in small car 12 1.62 (5.34) 10 (3.

11 Figure 6. Trunk‐mounted relay enclosure and cabling. The 8 AWG battery power feed enters the enclosure via the APP pair on the left. Behind

12 Figure 7. West Mountain APP strip feeding the KX3 and other radios. The KX3’s DC power is fed through the DC‐DC converter shown above the APP

13 Figure 8. Engine compartment, 8 AWG battery cabling, and 40A inline fuse in fuse holder (upper right). The Motorola fuse holder is waterproof

14 Speaker Output The KX3’s PHONES socket is a stereo 3.5mm type. If your vehicle has a 3.5mm AUX input, you can buy a patch cable to bring the KX

15 There are probably dozens of more electrically efficient mobile antennas to choose from. My favorite is the HiQ, but it’s not a very comfortabl

16 Operating Tips Though the KX3 is an excellent mobile platform, there are a few hints that may assist operators. Some of these are described bel

17 Standard Disclaimer, Updates To This Guide, and In Closing As stated in the subtitle, this guide is “one ham’s weekend project”. It’s not mean

2 Safety and Legal Considerations These are some important KX3 mobile safety and legal considerations: ‐ Road visibility ‐ Access to vehicle con

3 airbag deployment paths, consult your dealer’s technical staff. Airbag locations are marked with a prominent embossed label. I mentioned “a pr

4 With the KX3, we’re fortunate to have the I/O connectors on the left panel. For left hand‐drive vehicles at least, most of the cabling can be ro

5 it’s least convenient. Suction mounts should be reseated several times a month to maintain retention. They only last about a year, so keep that

6 The Seasucker 6018 with a mounted KX3 is shown in Figure 2, below. Using the 4‐1/2” vacuum mount, the KX3 is secured to the driver side window of

7 The very best source of power in a typical vehicle is a secondary battery. Note that I didn’t write this as “the engine start battery”. Your en

8 Figure 3. Wiring Diagram: Example of KX3 and KXPA100 power and antenna cabling. Figure 4. Relay and interconnection schematic. In Figure 2,

9 Note: Although the KXPA100 is not yet available from Elecraft, as of July, 2012, the design team confirmed it will use the 30A Anderson Power Pole