The Amateur Radio Crossword Puzzler

1. Sustained spark
3. Measures amount of curvature
6. Join by melting
9. Manufacturer of printers
11. Specifies coil pitch (abbr)
13. Amateur Service (abbr)
14. Wire size
16. Heat ..... tubing
17. Rectangular enclosure
18. On but not doing anything
19. Prefix added to 'sect' cuts in two
20. Class between A and B
21. Uneven
22. Multiple antennas (abbr)
24. A long section of cable
25. A small cut
27. To wait, not ...
29. Last two letters of the first year licensed (abbr)
30. Biggest event that's not a contest (abbr)
32. What squirrels do to feedlines
34. Outer coax conductor
37. Connector plating (chemical symbol)
38. I don't know why they call it wireless, I've never seen so many in all my life!
41. Partner to XYL
42. A happy smile
44. Opposite of ON
45. Sticky protective material
46. Type of open-wire line
48. Join two sections together
51. Our continent (abbr)
52. Federal law (abbr)
54. Prefix for the home of the Incas
55. What you do with 45 Across
57. Type of delight for all-metal beams
60. Station that sends bulletins (abbr)
61. Reduce in brightness
63. Sells you Internet access (abbr)
64. Pause in the action
66. Flexible tubular conductor
67. One component of solder (chemical symbol)
68. How wire should be stored

Down

1. First phone mode
2. Popular feedline type
3. Will not bend
4. Stations that are not local
5. Make longer
6. Wrap a cable around something
7. Opposite of RH
8. Ground wire on foil-wrapped cable
10. Microwave band from 12 - 18 GHz (abbr)
12. Ratio of circumference to diameter
14. Big desert between JT and BY
15. Circular currents induced by ac
16. Place surfaces together firmly
17. Frequency ranges
19. If it's stuck, it won't .....
21. Acceptable
23. Pointing in different directions
24. Signals above audio range (abbr)
26. Tool that squeezes connectors
28. Not difficult (abbr)
31. Calling (CW abbr)
32. Material most wires are made from (chemical symbol)
33. Name for the openings in open-wire line with plastic insulation
35. Group hostile to antennas (abbr)
36. A loop that causes water to fall off
37. Prefix meaning "opposite of"
39. VHF and UHF yagi elements are often made from this type of conductor
40. Flexible
43. Transparent
45. 2nd part of Tennessee manufacturer
47. Make possible
48. Opposite of stranded
49. What lights tall towers
50. Combination of YLs and 41 Across
53. The right weather for antenna work
56. How large quantities of wire and cable are delivered
58. Not them
59. Trade name for slowly-opening fuses - ...-Blo
61. Logarithmic ratio
62. One kilo microamp (abbr)
65. What the user uses (abbr)