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New measures to im Further measures designed to improve the General Radio Service CB band were an nounced recently by Ross Milne MP parliamentary secretary to federal Com munications Minister Jenne Sauve at symposium on General Radio Service at York University With 500000 licences in force up to one and half million Canadians now use CB radios The explosive growth in popularity of CB has brought with it problems such as chan nel congestion and over crowding improper operation by some users and interference with television sets and other Exploding myths about cable Some of the fables that arise around CB antennas concern the transmission line Com munications antenna systems almost invariably use coaxial cable It consists of an inner conductor which may be stranded or solid wire polyethelene insulation sur rounding the inner conductor metallic sheild usually of braided wire strands and OFFICIAL TEN CODE 100 Caution 101 Received poorly 102 Good reception 103 Stop transmitting 104 Yes understnad 105 Relay message 106 Busy please stand by 107 Out of serviceleaving the air 108 In service standing by 109 Repeat message 1010 Message completed standing by 1011 Talking too fast 1012 Visitors present 1013 Advise road and 4r weather conditions 1016 Make ick up at 1017 Urgent usiness 1018 Anything for us 1019 Return to base 1020 Location 1021 Call by phone 1022 Report in person to 1023 Stand by 1024 Assignment completed ff 10 Can you contact if 1026 Disregard last transmission iebikltiil£i covered outside by coating of black or white vinyl insulation The term coaxial often shortened to coax comes from the fact both conductors center wire and shield are concentric to the same axis Now to explode one common fable about coax You cannot tune the antenna system by trimming coax cable despite what friends tell you It you want to understand learn the official to code 1027 Im going to channel 1028 Identify your station 1029 Time is up for contact 1030 Does not conform to FCC rules 1032 Radio check 1033 Emergency 1034 Trouble at this station help 1035 Confidential information 1036 Correct time is 1038 Ambulance needed at 1039 Message delivered 1041 Change channel to 1042 Traffic accident at 1043 Traffic jam 1044 Have message for you 1045 All units report 1046 Assist motorist 1050 Break channel 1053 Road blocked 1054 Livestock on highway 1055 Drunk driver 1056 Intoxicated pedestrian 1057 Hit and run 1060 What is next message number 1062 Unable to understand 1063 Network directed to 1064 Network clear If you have badly mistuned antenna in which physical or electronic length is wrong you can mistakenly alter the high vswr somewhat by experimen ting with coax cable length But the only true is retuning the antenna The reason Coaxial cable construction builds in quality called characteristic im pedance The nature of the is staggers cable and its spacing between inner conductor and shield im part this imepodance which is expressed on ohms This is not the same ohms you read with an ohmmeter Both RG58U and RG8U cables are 52ohm transmission lines This 5Zohm impedance holds throughout the cable no matter what its length PRO VIDED the termination at both ends equals the same im pedance That is your CB transmitter matches this 52 ohms and so must the antenna properly designed and exact home entertainment equip ment Mr Milne said Among the measures an nounced to improve the General Radio Service are the following system of temporary per mits and call signs will be im plemented which will allow person to use CB set legally for 60 days while his or her licence application is being pro cessed by the department At present the owner of new CB set must wait until obtaining regular licence before transmitting and because licences are being processed at rate of several thousand month delays sometimes oc cur INFORMATION PROGRAM public information pro gram is planned to promote user awareness of and respect for regulations governing the use of CB in Canada The pro gram will consist of films ex prove CB band to amend regulations made under the Radio Act to control or prohibit sale possession and use of linear amplifiers exter nal radio power boosters con nected to CB radios to illegally raise their output Linear amplifiers are sometimes the cause of interference Under the new regulations CBers would also be required to per mit inspection of their stations at any reasonable time or face the possibility of fine or licence revocation Of course that roublesome minority of deliberate and habitual offenders wont be too impressed by these measures said Mr Milne noting com plants about violations of the regulations were rising sharp ly Mr Milne said prosecutions and licence suspensions would probably have to be used against some individuals Watch For Next Months hibitions hot line and talk show appearances by departmental personnel and revised edition of GRS operating handbook which will soon be provided ly tuned antenna does Perfect ly matched impendances from Titransmitter to antenna result in maximum power transfer and extremely low vswr A2em use 1065 Clear for message What is affected by cable length is signal loss Long free to all new CBers The department will CB 1067A11unit5comp1y cables such as to base ante institute acomputerized licens secfion 1068 Repeat message has lose some of the signal 1ng system on trial baSis in 1070 Fire power supplied by the transmit British columbia whereby 1071 Proceed with ten GR5au cable with its those applying for CBlicences transmission in sequence quartehinch diameter causes Will mail in their application to 1073 Speedtrap 23 DB loss for each 100 feet central location Thetnal Will 1074 Negative eff That means power reduces to be Valuatw t0 S89 Whether 1075 You are causing about 60 per cent on that length nagtional Compildtinlffld léfens interference of cable 4watt trasmitter SyS em WW 6851 1076 Enroute singal dwindles to 24 watts at BOOSTER BAN 1077 ETA the antenna Ihe department troposes 1078 Need assistance 1081 Hotel reservation request 1082 Reserved room ll 1084 Phone number is on 1085 Addrws ei enton 17Co eon Ave Barrie 1089 Radio repairman needed all HIM to 1090 have TV Ron Purdy 320 Ashland Ave London Ont 1091 Talk closer to mike 1092 Transmission poor 1° XI 4261490 Check unit Don Vernon RR Burns 1093 Frequency check noun CIIILD to an 1094 fiat Slow for radm Mrs Norma Vernon RR Barrio 1095 Transmit without Will 13 XI 4169011 speaking Leo Zinger l8 Coulson Ave Angus 13 iiiéihméhmietefl 4mm Hm Police Myrtle Zinger iei Coulson Ave Angus needed at Wan903