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Radio Frequencies of interest
to Telephone Experimenters
by THE RESEARCHER
(Updated 01/26/86)
A lot of technicaly oriented telephone experimenters are finding out about
an exiting world of telephone activity in the radio spectrum. Most of you are
probably aquainted with mobile telephone channels in the VHF band and know that
these conversations can be monitored. Frequencies have been allocated in the
VHF and UHF bands for use by land mobile, marine and air-ground stations.
Another facinating group of frequencies are the high seas channels in the high
frequency short wave band. I have spent many hours recently listening to ship
to shore telephone calls from ocean liners on the Atlantic.
Scanner radios are used to monitor the VHF/UHF channels. To listen to the
high seas channels you will need a short wave receiver capable of copying
single sideband transmissions. Nearly all high seas calls are transmitted on
upper sideband.
The new cellular telephone channels lie between 825-845 MHz and 870-890MHz
There are 666 of these spaced 30 kHz apart. I am aware of three manufacturers
who make scanners capable of receiving these frequencies. They are ICOM America
(IC-R7000), Yaesu Electronics Corp. (FRG-9700) and Regency (MX-7000). Ads for
all these can be found in "Popular Communications". There are convertors
available from Hamtronics, inc. which permit most scanners to tune these
frequencies. Their address is 65-B Moul Road, Hilton, NY 14468-9535. Phone:
716-392-9430. The cost is $88.00 plus $3.00 shipping and handling.
Mobile Telephone Frequencies
VHF Low Band (Freq. in MHz)
Channel Base Mobile
------- ---- ------
ZO 35.26 43.26
ZF 35.30 43.30
ZH 35.34 43.34
ZM 35.38 43.38
ZA 35.42 43.42
ZY 35.46 43.46
ZR 35.50 43.50
ZB 35.54 43.54
ZW 35.62 43.62
ZL 35.66 43.66
---------------------------
VHF High Band
JL 152.51 157.77
YL 152.54 157.80
JP 152.57 157.83
YP 152.60 157.86
YJ 152.63 157.89
YK 152.66 157.92
JS 152.69 157.95
YS 152.72 157.98
YR 152.75 158.01
JK 152.78 158.04
JR 152.81 158.07
---------------------------
Marine Telephone
24 157.2 161.8
84 157.225 161.825
25 157.25 161.85
85 157.275 161.875
26 157.3 161.9
86 157.325 161.925
27 157.35 161.95
87 157,375 161.975
28 157.4 162.0
----------------------------
UHF Band
QC 454.375 459.375
QJ 454.4 459.4
QD 454.425 459.425
QA 454.45 459.45
QE 454.475 459.475
QP 454.5 459.5
QK 454.525 459.525
QB 454.55 459.55
QO 454.575 459.575
QR 454.6 459.6
QY 454.625 459.625
QF 454.65 459.65
----------------------------
Air-Ground Stations
Channel Ground Airborne
1 454.95 459.95
2 454.9 459.9
3 454.85 459.85
4 454.8 459.8
5 454.75 459.75
6 454.7 459.7
7 454.725 459.725
8 454.775 459.775
9 454.825 459.825
10 454.875 459.875
11 454.925 459.925
12 454.975 459.975
Signaling 454.675
---------------------------
The following is a list of the channels used for high seas phone calls.As
a rule, the 4 MHz band comes in best at night while the higher channels are
best received during daylight hours. All frequencies are in kilohertz.
Channel Ship Coast
------- ---- -----
401 4063.0 4357.4
402 4066.1 4360.5
403 4069.2 4363.6
404 4072.3 4366.7
405 4075.4 4369.8
406 4078.5 4372.9
407 4081.6 4376.0
408 4084.7 4379.1
409 4087.8 4382.2
410 4090.9 4385.3
411 4094.0 4388.4
412 4097.1 4391.5
413 4100.2 4394.6
414 4103.3 4397.7
415 4106.4 4400.8
416 4109.5 4403.9
417 4112.6 4407.0
418 4115.7 4410.1
419 4118.8 4413.2
420 4121.9 4416.3
421 4125.0 4419.4
422 4128.1 4422.5
423 4131.2 4425.6
424 4134.3 4428.7
425 4237.4 4431.8
426 4140.5 4434.9
--------------------------
801 8195.0 8718.9
802 8198.1 8722.0
803 8201.2 8725.1
804 8204.3 8728.2
805 8207.4 8731.3
806 8210.5 8734.4
807 8213.6 8737.5
808 8216.7 8740.6
809 8219.8 8743.7
810 8222.9 8746.8
811 8226.0 9749.9
812 8229.1 8753.0
813 8232.2 8756.1
814 8235.3 8759.2
815 8238.4 8762.3
816 8241.5 8765.4
817 8244.6 8768.5
818 8247.7 8771.6
819 8250.8 8774.7
820 8253.9 8777.8
821 8257.0 8780.9
822 8260.1 8784.0
823 8263.2 8787.1
824 8266.3 8790.2
825 8269.4 8793.3
826 8272.5 8796.4
827 8275.6 8799.5
828 8278.7 8802.6
829 8281.8 8805.7
830 8284.9 8808.8
831 8288.0 8811.9
--------------------------
1201 12330.0 13100.8
1202 12333.1 13103.9
1203 12336.2 13107.0
1204 12339.3 13110.1
1205 12342.4 13113.2
1206 12345.5 13116.3
1207 12348.6 13119.4
1208 12351.7 13122.5
1209 12354.8 13125.6
1210 12357.9 13128.7
1211 12361.0 13131.8
1212 12364.1 13134.9
1213 12367.2 13138.0
1214 12370.3 13141.1
1215 12373.4 13144.2
1216 12376.5 13147.3
1217 12379.6 13150.4
1218 12382.7 13153.5
1219 12385.8 13156.6
1220 12388.9 13159.7
1221 12392.0 13162.8
1222 12395.1 13165.9
1223 12398.2 13169.0
1224 12401.3 13172.1
1225 12404.4 13175.2
1226 12407.5 13178.3
1227 12410.6 13181.4
1228 12413.7 13184.5
1229 12416.8 13187.6
1230 12419.9 13190.7
1231 12423.0 13193.8
1232 12426.1 13196.9
--------------------------
New Chordless Telephone
Frequencies in MHz
Channel Base Handset
------- ---- -------
1 46.61 49.670
2 46.63 49.845
3 46.67 49.860
4 46.71 49.770
5 46.73 49.875
6 46.77 49.830
7 46.83 49.890
8 46.87 49.930
9 46.93 49.990
10 46.97 49.970
Old Chordless Telephone
Frequencies
1 1705 49.830
2 1735 49.845
3 1765 49.860
4 1795 49.875
5 1825 49.890