咦?BRUNTON对讲机?
不晓得哪家给OEM的Brunton Roger 18 Two-Way Radio Set
With one of the longest broadcast distances on the market, these powerful radios will keep you in clear contact with your companions.
Adjustable power and 22 GMRS (General Mobile Radio Service) channels allow a range of up to 18 miles
Receives NOAA weather channels, including coverage of all government-operated NOAA weather broadcasts
Durable, water-resistant contruction stands up to harsh environments and heavy use
Five audible call-alerts grab the attention of your family and friends before you start speaking; 121 privacy codes per channel block interference
Features vibrate alert, silent mode, channel scan, auto squelch, battery save, mic jack, headphone jack, keystroke tones and keypad lock
Backlit LCD display makes the radio easy to read in the dark
Includes headsets, rechargeable battery packs and AC / DC charging base
These radios operate on radio frequencies that are regulated by the Federal Communications Commission (FCC); license and fees required. The communication range quoted is calculated based on an unobstructed line of sight test under optimum conditions. Actual range will vary depending on terrain and conditions, and is often less than the maximum possible. Your actual range will be limited by several factors, including (but not limited to) terrain, weather conditions, electromagnetic interference, and obstructions. Imported.
Specs: Brunton Roger 18 Two-Way Radio Set
Specification Description
Weight 2 pounds
Dimensions 6.5 x 2.3 x 1.75 inches
Channels 22
Privacy codes 121
Range 18 miles
Power Adjustable
http://images.rei.com/media/986227.jpg
Brunton Roger 10 Two-Way Radio
This feature-laden radio will keep you in clear contact with your companions at an affordable price.
Adjustable power and 22 GMRS (General Mobile Radio Service) channels allow a range of up to 10 miles
Durable, water-resistant contruction stands up to harsh environments and heavy use
Features channel scan, auto squelch, battery save, keypad lock, keystroke tones, mic jack, headphone jack and belt clip
Backlit LCD display makes the radio easy to read in the dark
This radio operates on radio frequencies that are regulated by the Federal Communications Commission (FCC); license and fees required. The communication range quoted is calculated based on an unobstructed line of sight test under optimum conditions. Actual range will vary depending on terrain and conditions, and is often less than the maximum possible. Your actual range will be limited by several factors, including (but not limited to) terrain, weather conditions, electromagnetic interference, and obstructions. Imported.
Specs: Brunton Roger 10 Two-Way Radio
Specification Description
Weight 10 ounces
Dimensions 6 x 2.25 x 1.75 inches
Channels 22
Privacy codes 22
Range 10 miles
Power Adjustable
http://images.rei.com/media/986231.jpg
Brunton Roger Headset
http://images.rei.com/media/c/1160085.jpg
[ 本帖最后由 GRAYKNIGHT 于 2007-4-17 22:12 编辑 ] Moto?? 好像没说功率大小,前边一个能发29km,后边一个也是16km,估计功率不小 有点象MOTO~ 难说是MOTO带工的. 我觉得像5428,
很好奇家用频率如何能够达到18英里~
看起来天线也不是很BT阿 对讲机的“距离”都是乱标的,不可当真。
GMRS,印象里限制发射功率1W。
接收性能做好一点,如果是两个山头,直线无阻挡,距离是可以达到很远。 即使实际能有10km也很NB了啊 29km……估计For ocean only…… MOTO的TALK ABOUT 如果仔細看,其實並不是MOTO生產的,事實上那是衣間在中國的廠商製造的,並且只是打上了MOTO的標誌,應該說是MOTO授權生產的,所以性能其實真的不好。
廠商的宣傳不可盡信,MOTO在某產品上宣稱產品 up to 2 watt
但實際上卻只有0.63瓦,這可不是MOTO不曉得喔,送美國FCC審驗的時候報告裡面可是寫的一清二楚的。
更何況這樣的設計,或許可以打的很遠,但是要地形配合,這裡所謂的通訊距離,
指的是直線,那是特意挑選出來的地形,因為在地球上兩個身高180的人站在平地上面,可以見到彼此的距離應該不超過七英哩,UHF是所謂的直線波,如果不能看到對方,那麼訊號就到不暸了。0.63瓦的GMRS無線電就可以打到14公里,不過這樣的機器再都市裡面能傳到五百公尺就很偷笑了。
推薦如果要用,可以尋找一般的MOTO出的早期兩瓦的無線電,真正可以收發兩瓦,對於在都市裡面的一般生活應該可以使用了,但是如果要在郊外用,或許還是選擇VHF頻段的無線電會比較好一點。例如YAESU VERTEX VX-170之類的無線電
页:
[1]