Radio Shack 21-869 Скачать руководство пользователя страница 7

Страница: 7 / 8

SPECIFICATIONS

Reception ....................................................... VHF and UHF (Pre-tuned for 27.205 MHz)

Half-Wave Gain ....................................................................................................... 9.9 dBi

Optimum SWR Range ............................................................................... Less than 1.5:1

Height (assembled) .............................................................................................. 17.5 feet

(5.3 m)

Maximum Diameter ........................................................................................... 1.8 inches

34 mm.)

Weight .............................................................................................................. 4 lbs 15 oz

(2.24 kg)

Specifications are typical; individual units might vary. Specifications are subject to change
and improvement without notice.

21-869.fm Page 7 Wednesday, October 13, 1999 11:50 AM

Содержание 21-869

Страница 1: ...lectric shock Many power wires are within 20 to 25 feet of the ground and could easily be touched by an assembled antenna or cable Touching the overhead wires with any part of the antenna is the same...

Страница 2: ...nd death Call the power company to re move the antenna Do not attempt to remove it yourself Cautions Do not run the cable over sharp edges or moving parts that might damage it Do not run the cable nex...

Страница 3: ...e the length you need to cut off of the top element then use a hacksaw to carefully cut the top element 4 Replace the cap on the top element 5 Set the tuning rings on the bottom element of the antenna...

Страница 4: ...old the assembled antenna vertically next to the structure where you want to mount it then slide the supplied U bolts 6 over the antenna and the structure 7 Slide the supplied brackets 7 over the ends...

Страница 5: ...3 If the center frequency is still too low follow the steps under Pre Tuning the Antenna on Page 3 to shorten the top element by 1 2 inch Then check the SWR again Keep shortening the top element unti...

Страница 6: ...the antenna see Pre Tuning the Antenna on Page 3 The antenna is not installed in a good location Move the antenna to a different location and try again The coaxial cable might be broken or damaged Us...

Страница 7: ...SWR Range Less than 1 5 1 Height assembled 17 5 feet 5 3 m Maximum Diameter 1 8 inches 34 mm Weight 4 lbs 15 oz 2 24 kg Specifications are typical individual units might vary Specifications are subjec...

Страница 8: ...g the warranty period take the product and the RadioShack sales receipt as proof of purchase date to any RadioShack store RadioShack will at its option un less otherwise provided by law a correct the...