cb radio frequency

cb radio frequency

Operating Modes : Morse code : Learning Morse Code

• Recognition of CW signs at different listening levels and frequencies - The recognition of telegraphy masked by noise at 40 and 80 signs/min telegraphy speed was studied in 10 normal-hearing subjects at different sound pressure levels (25-85 dB SPL in steps of 5 dB) as well as at different test frequencies (2000, 1000, 800, 630, 500 and 250 Hz). The ability to recognize the signs varied with varying SPL. Recognition for most of the subjects was best at an SPL close to 70 dB. All subjects improved their recognition as the frequency was lowered to 500 Hz, some even at 250 Hz. These facts should be taken into consideration when training telegraphy operators as well as in the construction of radio receivers to permit listening at low frequencies. Furthermore, the critical ratio was calculated at the different test frequencies.
  [ Hits: 81 | Votes: 1 | Rating: 7 ]

• UK Scanner Frequencies - UK frequency list provide reference table to lister to Police scanner channels UHF VHF, Amateur Repeaters, Ambulance CB Radio CoastGuard Rescue, marine VHF, Military and more.
  [ Hits: 164 | Votes: 1 | Rating: 1 ]

• ScannerWorld.com - Radio Scanners Uniden Bearcat, Antennas, CB_Radios, Ni-Cad Batteries, Frequency Books, Accessories, Power Supplies and Cords, FM Two Way Radios, and other Related Merchandise
  [ Hits: 5170 | Votes: 2 | Rating: 7.5 ]

• Amateur Radio Kits - BITX ver 3 kits, frequency counters, SDR PCB, spare parts and relate ham radio accessories by VU3SUA
  [ Hits: 649 | Votes: 2 | Rating: 1.5 ]

• Defpom's CB Radio Simulator - It is a application which can be used for troubleshooting CB radio faults, by giving a graphical display of the normal operating frequencies generated by various parts of the CB radios circuits, it can help you identify if a frequency is incorrect or even missing. Another good use for this software is simulating possible frequency expansions, as it allows you to choose any frequency that the PLL is capable of generating, so you can see what the radio will allow you to get !
  [ Hits: 1683 | Votes: 1 | Rating: 10 ]

• Open-channel - A CB radio website aimed mainly at the UK market including help, tips, repairs, mic wiring, frequency charts, chat forum,rig doctor listing, mail order shops and much much more
  [ Hits: 4097 | Votes: 4 | Rating: 7 ]

• 50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter
  [ Hits: 6608 | Votes: 10 | Rating: 4.55 ]