Difference between revisions of "49MHz Radio"

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The 49MHz frequency region of the radio spectrum falls just below the 6-meter
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The 49MHz frequency region of the radio spectrum falls just below the [[6 Meter Ham Radio Band]].  The 49MHz band is often used for FCC Part 15 devices such as remote control toys, baby monitors, cordless phones, and walkie talkies.  The 49MHz bad is also shared
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with military operations, petroleum operations, and the occasional public safety allocation.
  
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Cordless phone use has moved away from this low frequency VHF band.  There is little activity today in the 49MHz region.
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Although the 49MHz region falls just below the 6 Meter Ham Radio Band, it should NOT be presumed that 49MHz is in a 5 Meter Band, as it is not.  There once was a [[5 Meter Ham Radio Band]] that the FCC took away, and the frequency range was higher, not lower, than the current 6 Meter band.  As this demonstrates, nomenclature is not always mathematically correct to actual wavelength.
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==49MHz Cordless Phone Channel Frequencies==
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These are frequencies that have been allocated to FCC Part 15 Personal Radio SRD (Short Range Device). 
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===10 Channel Cordless Phone Frequencies===
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Channel Base Handset
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1 46.610 49.670
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6 46.770 49.830
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2 46.630 49.845
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7 46.830 49.890
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3 46.670 49.860
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8 46.870 49.930
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4 46.710 49.770
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9 46.930 49.990
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5 46.730 49.875
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10 46.970 49.970
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===25 Channel Cordless Phone Frequencies===
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Channel Base Handset
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1 43.720 48.760
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2 43.740 48.840
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3 43.820 48.860
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4 43.840 48.920
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5 43.920 49.020
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6 43.960 49.080
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7 44.120 49.100
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8 44.160 49.160
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9 44.180 49.200
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10 44.200 49.240
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11 44.320 49.280
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12 44.360 49.360
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13 44.400 49.400
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14 44.460 49.460
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15 44.480 49.500
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16 46.610 49.670
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17 46.630 49.845
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18 46.670 49.860
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19 46.710 49.770
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20 46.730 49.875
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21 46.770 49.830
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22 46.830 49.890
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23 46.870 49.930
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24 46.930 49.990
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25 46.970 49.970
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===6 Channel Cordless Phone Frequencies===
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Channel Base Handset
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01A 49.930 1.695
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06A 49.830 1.705
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13A 49.860 1.765
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19A 49.875 1.795
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25A 49.890 1.825
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27A 49.845 1.735
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==Other 49MHz Personal Radio Designations==
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===Baby Monitor and Toy Frequencies===
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Channel Frequency
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A 49.830 
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B 49.845 
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C 49.860 
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D 49.875 
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E 49.890
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''RF Power Output. 10,000 uV/M @ 3 Meters (Max FCC allowable)''
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===Radio Shack Products===
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Channel Frequency
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1 49.670
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2 (A) 49.830
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3 (B) 49.845
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4 (E) 49.890
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5 (C) 49.860
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6 49.930
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7 49.770
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8 49.990
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9 (D) 49.875
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10 49.970
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''Those not designated by a letter are part of the expanded frequencies accomplished by aftermarket modification, ref: Radio Shack TRC-512 (21-412)''
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==Online Resources and References==
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* [http://www.qsl.net/49mhz/reference/ 49MHz Experimental Radio Club]
 
[[Category:Radio]]
 
[[Category:Radio]]

Latest revision as of 10:44, 11 April 2016

The 49MHz frequency region of the radio spectrum falls just below the 6 Meter Ham Radio Band. The 49MHz band is often used for FCC Part 15 devices such as remote control toys, baby monitors, cordless phones, and walkie talkies. The 49MHz bad is also shared with military operations, petroleum operations, and the occasional public safety allocation.

Cordless phone use has moved away from this low frequency VHF band. There is little activity today in the 49MHz region.

Although the 49MHz region falls just below the 6 Meter Ham Radio Band, it should NOT be presumed that 49MHz is in a 5 Meter Band, as it is not. There once was a 5 Meter Ham Radio Band that the FCC took away, and the frequency range was higher, not lower, than the current 6 Meter band. As this demonstrates, nomenclature is not always mathematically correct to actual wavelength.

49MHz Cordless Phone Channel Frequencies

These are frequencies that have been allocated to FCC Part 15 Personal Radio SRD (Short Range Device).

10 Channel Cordless Phone Frequencies

Channel		Base		Handset
1 		46.610 		49.670 
6 		46.770 		49.830 
2 		46.630 		49.845 
7 		46.830 		49.890 
3 		46.670 		49.860 
8 		46.870 		49.930 
4 		46.710 		49.770 
9 		46.930 		49.990 
5 		46.730 		49.875 
10 		46.970 		49.970

25 Channel Cordless Phone Frequencies

Channel		Base		Handset
1 		43.720 		48.760 
2 		43.740 		48.840 
3 		43.820 		48.860 
4 		43.840 		48.920 
5 		43.920 		49.020 
6 		43.960 		49.080 
7		44.120 		49.100 
8 		44.160 		49.160 
9 		44.180 		49.200 
10 		44.200 		49.240 
11 		44.320 		49.280 
12 		44.360 		49.360 
13 		44.400 		49.400 
14 		44.460 		49.460 
15 		44.480 		49.500 
16 		46.610 		49.670 
17 		46.630 		49.845 
18 		46.670 		49.860 
19 		46.710 		49.770 
20 		46.730 		49.875 
21 		46.770 		49.830 
22 		46.830 		49.890 
23 		46.870 		49.930 
24 		46.930 		49.990 
25 		46.970 		49.970

6 Channel Cordless Phone Frequencies

Channel		Base		Handset
01A 		49.930 		1.695 
06A 		49.830 		1.705 
13A 		49.860 		1.765 
19A 		49.875 		1.795 
25A 		49.890 		1.825 
27A 		49.845 		1.735

Other 49MHz Personal Radio Designations

Baby Monitor and Toy Frequencies

Channel	Frequency
A 		49.830   
B 		49.845   
C 		49.860   
D 		49.875   
E 		49.890

RF Power Output. 10,000 uV/M @ 3 Meters (Max FCC allowable)

Radio Shack Products

Channel		Frequency
1		49.670
2 (A)		49.830
3 (B)		49.845
4 (E)		49.890
5 (C)		49.860
6		49.930
7		49.770
8		49.990
9 (D)		49.875
10		49.970

Those not designated by a letter are part of the expanded frequencies accomplished by aftermarket modification, ref: Radio Shack TRC-512 (21-412)

Online Resources and References

Retrieved from "http://wiki.robotz.com/index.php?title=49MHz_Radio&oldid=12976"