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FEDERAL REGISTER, Thursday, March 2, 1939
tions operating with power not in excess of 250 watts:
Group B
31500 kc 35900 kc 37900 kc 33500 kc 37100 kc 39500 kc c Notwithstanding the provisions of a and b of this section, municipali ties and states may be authorized to operate mobile and portable-mobile sta tions on the frequency, or frequencies, assigned to their fixed stations. An instrumentality of government operating mobile units only may be authorized to use a frequency from Group A or Group 4B of this section assigned an adjacent instrumentality of government, provided a copy of the agreement en tered into between the two for the ex change of service is filed with the Commission.
d Municipalities and states desiring more than one fixed frequency shall, in making application, show a proper need therefor.
e Municipalities desiring frequencies for use by portable stations of one watt power or less, portable-mobile stations, or mobile stations, different from those which may be allocated under Section 111.21 a and b, may be authorized to use the following frequencies:
Group C
80538 kc 31780 kc 33780 kc 35220 kc 0 kc 30980 kc 33220 kc 35100 kc 0 kc -39380 kc > States desiring frequencies for use portable-mobile or mobile stations rent from those which may be allo1 under Section 111.21 a and b, may be authorized to use the following frequencies. These frequencies are also available to states for portable stations of 1 watt power or less:
Group D
35780 kc 37380 kc 39180 kc 39780 kc g The number of frequencies which may be assigned to any one municipality or state for either fixed, portable, or mobile stations will be governed pursu ant to announced policies of the Com mission.!
S ec. 111.25 Special emergency stations.
The following frequencies are allocated to special emergency stations:
a For portable stations with a maxi mum power of 1 watt, portable-mobile stations, and mobile stations:
31740 kc 33060 kc 33820 kc 35140 kc 37180 kc 37820 kc 39340 kc b For fixed, land, and portable sta tions without limitation as to power:
31460 kc 39660 kc 39860 kc For fixed, land, and portable stawith a maximum power of 1000
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kc A-3 emission fission
3190 kc A-l
d For fixed, land, and portable sta tions of public utilities, using A-3 emis sion, with a maximum power of 50 watts:
2292 k c 4
4637.5 kc day only4

1103

rately issued, shall be readily available for inspection by authorized Govern ment representatives. Either the orig inal authorization or a photocopy of that document shall be available at the por table or mobile station involved.!
e Notwithstanding the provisions of Logs b, c and d of this section, authori zations may be issued covering the opera S ec. 111.60 Contents. Each licensee tion of mobile and portable-mobile sta shall mBCain adequate records of the tions on the frequency, Or frequencies, operation of the station including a assigned to licenses of fixed or land hours of operation; b nature and time stations.!
of each transmission; c frequency S ec. 111.26 Forestry stations. The fol measurements; d name of operator on lowing frequencies are allocated to for duty at the transmitter. In the cases of estry stations: !
groups of stations, either fixed or fixed and operating as a single coordi a 30940 kc 39740 kc 35940 kc natedmobile, system controlled 31580 kc 31940 kc 35740 kc from a communication single point, a single log may be 31340 kc 39940 kc 37460 kc maintained at a central location, pro 39420 kc vided that such records the required b 2212 k c 1
2236 k c1
2244 k c 1 information withlogrespect to all stations Frequency Tolerance in the network.4 .
Sec. 111.30 Per cent of tolerance. The InstructionsEmergency Service frequency tolerance of stations in the 1. In connection with the adoption of emergency service shall be as follows: !
rules and regulations governing the Equipment Equipment emergency service, the Commission made authorized authorized the following statement with regard to before after 10/1/38
10/1/38 the standards by which it will be gov percent percent erned in acting upon applications for Fixed stations on fre authorizations in this service:
quencies below 6000 kc_ 0.03
0.01
2. Sec. 111.10 provides for the submis Land stations on frequencies below 6000 kc_ .04
sion of blanket applications for authori .02
Portable and mobile stazations for identical stations. It is con tions on frequencies templated that, in general mobile trans below 6000 kc____ ___ .04
.02
mitters and low powered portable trans Fixed and land stations on frequencies above mitters operating as part of a coordi 30000 kc .05
.02
nated communication system will not be Portable and mobile staassigned individual calls nor will they tions on frequencies be issued individual licenses. Individual above 80000 kc_
__ .05
.03
Portable and mobile stafixed stations in such a system will be tions of 1 watt power individually licensed and will have sepa or less on frequencies rate call letters. The mobile and low above 30000 kc .1
.1
powered portable transmitters will be Frequency Measurement authorized in the license of the station S e c . 111.31 Measurement procedure. normally in control of the communica The licensee of each station shall provide tion network. Separate authorizations for measurement of the frequency of the must be obtained for transmitters which transmitter s and establish procedure are to be operated independently. In for checking it regularly. These meas this respect your attention is invited to urements. of frequency shall be made by the provisions of the Commissions Rule means independent of the frequency 15.01 which requires that applications control of the transmitter and shall be for instruments of authorization for of such an accuracy that the limit of fixed stations be submitted in duplicate.
error is within the frequency tolerance It should be noted that under the provi sions of this rule applications for port allowed the transmitter.!
S e c . 111.41 Routine tests. The li able and mobile transmitters are also censees of all classes of stations in the to be submitted in duplicate. This is a emergency service are authorized to change from previous practice.
3. Where application for license or make such routine tests as may be re quired for the proper maintenance of the modification of license for fixed and station and communication network, mobile equipment is made at the same provided th at precautions are taken to time the description of the mobile equip avoid interference with any station in ment should appear on the same forms submitted for the fixed station.
the particular service involved.!
4 . Applications for licenses filed with S ec.- 111 .5 2 Posting portable or mo bile station licenses. The licenses of the application for construction permit portable and mobile stations, if sepawill not be accepted unless a showing is made th at the equipment described in 1 Subject to the condition that no inter the construction application is purchased ference is caused to Canadian stations.
as a complete unit and is of such a na May be used subject to the condition that ture th at no construction other than in no interference is caused to other services and that the frequency is maintained within stallation connection with power supply a tolerance of 0.02%.
and antenna is necessary. If such a