Antenna Loss in % based on SWR
by Quantis on Jul.30, 2014, under Ham Radio
| SWR READING | % OF POWER LOSS | OUTPUT TO ANTENNA* |
| 1.0:1 | 0.0% | 100.0% |
| 1.1:1 | 0.3% | 99.7% |
| 1.2:1 | 0.8% | 99.2% |
| 1.3:1 | 1.7% | 98.3% |
| 1.4:1 | 2.7% | 97.3% |
| 1.5:1 | 3.0% | 97.0% |
| 1.6:1 | 5.0% | 95.0% |
| 1.7:1 | 6.0% | 94.0% |
| 1.8:1 | 8.0% | 92.0% |
| 2.0:1* | 11.0% | 89.0% |
| 2.2:1 | 14.0% | 86.0% |
| 2.4:1 | 17.0% | 83.0% |
| 2.6:1 | 20.0% | 80.0% |
| 3.0:1 | 25.0% | 75.0% |
| 4.0:1 | 38.0% | 62.0% |
| 5.0:1 | 48.0% | 52.0% |
| 6.0:1 | 55.0% | 45.0% |
| 10.0:1 | 70.0% | 30.0% |
*Percentage of OUTPUT Power with perfect antenna load
and no other losses in the antenna system!
*SWR 2.0:1* Most transceivers start to reduce power at this SWR level
A Yaesu FT-857 starts to turn down the power at a 3:1 SWR.
Suggested SOTA QRP Starting frequencies
by Quantis on Jul.25, 2014, under Ham Radio
Suggested SOTA QRP Starting frequencies
| QRP Frequencies Worldwide | ||||||||
| QRP | Standard Freq | HF-PACK Freq | Novice Freq | Euro Freq | ||||
| BAND | SSB | CW | SSB (USB) | CW | SSB | CW | SSB | CW |
| 160m | 1910.0 | 1810.0 | 1996.0 | 1810.0 | NONE | NONE | 1843.0 | 1843.0 |
| 80m | 3985.0 | 3560.0 | 3996.0 | 3560.0 | NONE | 3710 | 3690.0 | 3690.0 |
| 60m | 5403.5 | NONE | 5371.5 | NONE | NONE | NONE | NONE | NONE |
| 40m | 7285.0 | 7040.0 | 7296.0 | 7038.5 | NONE | 7110 | 7090.0 | 7030.0 |
| 30m | NONE | 10106.0 | NONE | 10117.5 | NONE | NONE | NONE | NONE |
| 20m | 14285.0 | 14060.0 | 14342.5 | 14059.0 | NONE | NONE | NONE | NONE |
| 17m | 18130.0 | 18096.0 | 18157.7 | 18081.5 | NONE | NONE | NONE | 18085.0 |
| 15m | 21385.0 | 21060.0 | 21437.5 | 21060.0 | NONE | 21110 | 21285.0 | NONE |
| 12m | 24950.0 | 24906.0 | 24977.0 | 24926.0 | NONE | NONE | NONE | NONE |
| 10m | 28385.0 | 28060.0 | 28327.5 | 28060.0 | NONE | 28110 | NONE | 28360.0 |
| 6m | 50125.0 | 50050.0 | 50162.5 | 50050.0 | NONE | NONE | NONE | NONE |
Have a fun and safe activation!
Canadian Marine Radio Frequencies
by Quantis on Jul.03, 2014, under Ham Radio
Channel Frequency
0 156.000
1 156.050 Public Correspondence (Ship-to-Shore Duplex) – BC Coast
2 156.100 Public – BC Coast
3 156.150 Public – BC Coast/Inland
4 156.200 Ship-to-ship/shore, commercial and safety – East Coast and Inland A
5 156.250 Ship Movements
6 156.300 Ship-to-ship + Ship-to-Air
7 156.350 General working channel
8 156.400 Ship-to-ship – East and west coasts, Lake Winnipeg
9 156.450 Ship-to-air for maritime support – Atlantic and BC coasts
10 156.500 Ship-to-air – SAR and antipollution – General working – Atlantic and BC coasts, Great Lakes
11 156.550 VTS – BC Coast – Pilotage A
12 156.600 VTS – BC Coast – Port and pilot ops A
13 156.650 VTS – BC Coast – Bridge-to-bridge safety A
14 156.700 VTS – BC Coast – Port and pilot ops
15 156.750
16 156.800
17 156.850
18 156.900
19 156.950 Canadian Coast Guard – Working Channel
20 157.000
21 161.650 Continuous marine broadcasts B (WX 8)
22 157.100
23 157.150
24 157.200
25 157.250
26 157.300
27 157.350
28 157.400
60 156.025
61 156.075
62 156.125
63 156.175
64 156.225
65 156.275 Marine Assistance Working Channel
66 156.325 Marinas – BC Coast
67 156.375
68 156.425
69 156.475
70 156.525
71 156.575
72 156.625 Ship-to-ship
73 156.675
74 156.725
75 156.775
76 156.825
77 156.875
78 156.925
79 156.975
80 157.025
81 157.075
82 157.125 Canadian Coast Guard – Working Channel
83 161.775 Continuous marine broadcasts B (WX 9)
84 157.225
85 157.275 Radio Telephone – Duplex
86 157.325
86 157.325
87 157.375
88 157.425
87B 161.975
88B 162.025
Nick Offerman (Ron Swanson) Narrates this epic video
by Quantis on Jun.26, 2014, under Found, Videos
FRS and GMRS Frequency list
by Quantis on Jun.26, 2014, under Ham Radio
A list of frequencies for FRS/GMRS radio
FRS 01 462.5625
FRS 02 462.5875
FRS 03 462.6125
FRS 04 462.6375
FRS 05 462.6625
FRS 06 462.6875
FRS 07 462.7125
FRS 08 467.5625
FRS 09 467.5875
FRS 10 467.6125
FRS 11 467.6375
FRS 12 467.6625
FRS 13 467.6875
FRS 14 467.7125
GMRS 1 462.550
GMRS 2 462.575
GMRS 3 462.600
GMRS 4 462.625
GMRS 5 462.650
GMRS 6 462.675
GMRS 7 462.700
GMRS 8 462.725
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