协调世界时 -- coordinated universal time 或 UTC 调频-- frequency modulation 或 FM 单边带 -- single side band 或 SSB 第8 章 怎样进行 CW 通联? 8.1 莫尔斯电码 所谓CW 通联,就是利用电键,拍发、抄收滴滴答答的莫尔斯电码,与其他火腿通联。CW 通联是业余无线电的各种通联方式中效率最高的一种,因为它...
(频段的)划分:allocation(of a frequency band)由国家将某个特定的频带列入频率划分表,规定该频带可在指定的条件下供业余业余业务或者卫星业余业务使用 (无线电频率或无线电频道的)分配:allotment(of a radio frequency or radio frequency channel)将无线电频率或频道规定由一个或多个部门,在指定的区域内供地面或空...
BAOFENG UV-25M Ham Radio High Powerful Tactical Walkie Talkie 50KM Multi-Band Type-C 999Channel 2Way Radio BAOFENG NEW Upgrade Main Features - Frequency range: FM radio 76-108 MHz; AM aviation frequency band: 108-136MHz (RX) VHF1:136-174MHz (RX&TX) ; VHF2:220-260MHz (RX&TX) ; ...
Ham Radio Antenna Connector and Adapter Types Ham Radio Prepper-February 15, 2020 ICOM IC-2300H Radio Review: Single-Band 2 Meter Radio Ham Radio Prepper-February 14, 2020 Emergency Hams: An Overview of How Amateur Radio Operators Help During Disasters ...
超高频--ultrahighfrequency（UHF） 甚高频--veryhighfrequency（VHF） 频率--frequency 波长--wavelength 中继器--repeater 远程通联--distancecommunication（DX或DXing） 远程通联者--DXer 高频--highfrequency（HF） 慢扫描电视--slowscantelevision（SSTV） 数据包--packet 互联网-电台连接方案--InternetRadioLinking...
Like the Handi-Talkies listed above, most manufactures build Mobile Rigs in a few different flavors and price ranges. I’ll assume the reader understands the terms Single-Band Radio (1 frequency band range) and Dual-Band Radio (2 frequency band range). ...
Battery Capacity(mAh) 2200 Waterproof / Water-Resistant No Material Plastic Storage Channel 256 Frequency Range VHF&UHFView more DescriptionReport Item Multiple-band Ham Radio TX:136-520MHz RX:64-108MHz,(FM,should be turned on while used) 108-136MHz( Aviation Frequency Band) 13--520MHzBuyer...
5. Talking into the wrong radio or microphone. 6. Selected incorrect VFO 7. Left VOX on (can be very entertaining for those listening) 8. Amplifier on wrong band or mistuned (can be expensive) 9. Failure to yell adequately into the microphone or gain too low ...
MANY HAM RADIO FEATURES 11 virtual Ham Bands, Broadcast band, Powerful transmitter, Log Book, QSL card Management, Awards andmany other features. "Besides making new friends during these voice contacts worldwide your software provides not only entertainment, but is also an educational tool for non...
Ham radio operators have several different frequency bands set aside for their use. These bands range from just above the AM broadcast band (the AM band ends at 1700 kHz; the 160-meter ham band begins at 1800 kHz) through the shortwave band and into the VHF, UHF, and microwave frequencie...