21 – 21.3 SHF, Super High Frequency radio, Ham radio, Cosmic Radiation from outer space and Somalia photos 39.

7 February 2021.

Super High Frequency SHF radio (1 of 2).

SHF Amateur Radio.

Cosmic Microwave Background Radiation from outer space.

Experimental Radio.

Amateur Radio.

The All Frequency Database Index is here: http://sites.google.com/site/somaliaamateurradio/somaliaphotos10

You are here:

Super High Frequency SHF radio from 3 GHz – 30 GHz.

21. SHF Radio Communications and Emissions.

21.1 SHF Amateur Radio (Ham radio).

21.2 SHF Cosmic Microwave Background Radiation from outer space.

21.3 SHF Experimental Radio.

21.

SHF Radio Communications and Emissions.

SHF 3000 – 30000 MHz.

SHF 3 – 30 GHz.

SHF 3000 MHz – 30 GHz.

SHF 3 GHz – 30 GHz.

SHF 3000 MHz – 30000 MHz.

SHF 3000000 – 30000000 kHz.

SHF 3000000 kHz – 30000000 kHz.

SHF 3000000000 Hz – 30000000000 Hz.

Super High Frequency communications stations and SSW emissions.

UHF radio communications stations, Amateur Radio, Satellite radio communications, Radio Astronomy and other UHF radio emissions are here.

Introduction to Super High Frequency SHF DX, the hobby of listening to distant Super High Frequency SHF radio communications stations, Radio Astronomy, amateur Radio stations, utility radio stations, space radio communications, man made radio emissions and natural radio emissions between 3000 MHz and 30000 MHz.

SHF contains microwave frequencies in part of the S band 2000 MHz – 4000 MHz (2 GHz – 4 GHz) and in all of the C band 4000 MHz – 8000 MHz (4 GHz – 8 GHz), X band 8000 MHz – 12000 MHz (8 GHz – 12 GHz), Ku band 12000 MHz – 18000 MHz (12 GHz – 18 GHz), K band 18000 MHz – 26500 MHz (18 GHz – 26.5 GHz) and part of the Ka band 26500 MHz – 40000 MHz (26.5 GHz – 40 GHz).

Super High Frequency (SHF) radio signals have Super Short Wave (SSW) lengths.

SHF DX Long distance Super High Frequency radio listening.

SHF DX Long distance Super High Frequency radio hunting.

SHF DXer Long distance Super High Frequency radio listener.

SHF DXing is the searching for long distance Super High Frequency radio signals.

SHF 3000 MHz – 30000 MHz (3 GHz – 30 GHz).

Centimetric waves.

Radio Astronomy on SHF.

The hobby of Listening to SHF radio signals from outer space.

The hobby of Listening to SHF radio signals from space satellites.

The hobby of Listening to SHF space radio communication.

The hobby of Listening to SHF radio emissions from the Universe.

The hobby of Listening to military radio stations on SHF radio.

The hobby of Listening to Army, Navy and Air Force communications on SHF radio.

The hobby of SHF WLAN DXing.

The hobby of SHF LAN DXing.

The hobby of Listening for long distance Internet Local Area Network LAN radio signals

The hobby of SHF Radio Beacon DXing.

The hobby of SHF Long distance radio Beacon listening.

The hobby of SHF aircraft radio listening.

The hobby of Listening to SHF amateur radio communications.

The hobby of SHF Ham Radio DX.

The hobby of Long distance SHF amateur radio station listening.

The hobby of Long distance SHF Amateur Radio station transmitting.

The hobby of Listening to SHF utility radio stations.

Introduction to SHF radio.

Introduction to Super High Frequency radio.

http://en.wikipedia.org/wiki/Super_high_frequency

Introduction to Microwaves.

Introduction to the frequencies above 1000 MHz

Introduction to the frequencies above 1 GHz.

http://www.wa1mba.org/micros.htm

https://www.denkikogyo.co.jp/en/business/elec/frequency/uhf.html

https://www1.udel.edu/nero/Radio/diagrams/freqchart.html

https://www.researchgate.net/publication/330300485_Microwave_Super_High_Frequency_SHF_Antenna_for_Satellite_Communication_Systems_Radar_Aircraft_Navigation_Radio_Astronomy_Remote_Sensing_and_Communications

https://www.signalbooster.com/blogs/news/types-of-frequencies-and-wavelengths-in-the-radio-frequency-spectrum

https://www.acma.gov.au/what-spectrum

https://www.acma.gov.au/sites/default/files/2019-10/Australian%20radiofrequency%20spectrum%20allocations%20chart.pdf

21.1

Amateur Radio (Ham radio).

SHF Amateur Radio.

Amateur Radio on SHF.

3400 MHz. 3.4 GHz.

9 centimeter band 3400 MHz SHF.

9 centimetre band 3400 MHz SHF.

9 centimeter band 3400 MHz SHF.

9 centimetre band 3400 MHz SHF.

https://en.wikipedia.org/wiki/9-centimeter_band

5700 MHz. 5.7 GHz.

5 centimeter band 5700 MHz SHF.

5 centimetre band 5700 MHz SHF.

5 centimeter band 5.7 GHz SHF.

5 centimetre band 5.7 GHz SHF.

https://en.wikipedia.org/wiki/5-centimeter_band

10000 MHz. 10 GHz.

3 centimeter band 10000 MHz SHF.

3 centimetre band 10000 MHz SHF.

3 centimeter band 10 GHz SHF.

3 centimetre band 10 GHz SHF.

https://en.wikipedia.org/wiki/3-centimeter_band

24000 MHz. 24 GHz.

1.2 centimeter band 24000 MHz SHF.

1.2 centimetre band 24000 MHz SHF.

1.2 centimeter band 24 GHz SHF.

1.2 centimetre band 24 GHz SHF.

https://en.wikipedia.org/wiki/1.2-centimeter_band

Amateur radio stations are individual citizens in every country of the world who communicate and experiment with radio transmitters and radio receivers. You can hear some amateur radio stations on SHF radio.

Introduction to Tropospheric long distance radio communications.

http://www.dxinfocentre.com/propagation/tr-modes.htm

Australia.

The Troposphere in Australia.

Australian map with Tropospheric Ducting Forecasts.

Australia Long distance radio communications forecasts for frequencies above 1000 MHz and below 1000 MHz.

Australia Long distance radio communications forecasts for VHF.

Australia Long distance radio communications forecasts for UHF.

Australia Long distance radio communications forecasts for SHF.

Australia Long distance radio communications forecasts for EHF.

Australia Long distance radio communications forecasts for THF.

http://www.dxinfocentre.com/tropo_aus.html

How to read the Tropospheric long distance radio forecast map.

http://www.dxinfocentre.com/propagation/hti.htm

Amateur radio station on SHF.

https://3fs.net.au/amateur-microwave/

On-line forum for anyone with questions about getting started in the hobby of amateur radio.

On-line forum about Long distance radio reports.

On-line forum about becoming a radio amateur in 2 days (one weekend) with the Foundation amateur radio license.

On-line forum about the Standard Amateur Radio license.

On-line forum about the Advanced Amateur Radio license.

On-line forum about radio beacons.

On-line forum about radio repeater stations.

On-line forum about radio clubs.

On-line forum for listeners who are new to satellite radio listening.

On-line forum for amateur radio operators who are new to satellite radio transmitting.

On-line forum about the Automatic position radio reporting system APRS.

On-line forum called hello I want to learn about amateur radio.

On-line forum about setting up your radio shack.

On-line forum about setting up your amateur radio station.

On-line forum about how to use the Australian amateur radio license to operate in other counties.

On-line forum about antennas.

On-line forum about DSTAR (Digital Smart Technologies for Amateur Radio)

http://warsug.info/viewforum.php?f=9

Europe.

The Troposphere in Europe.

European map with Tropospheric Ducting Forecasts.

Europe Long distance radio communications forecasts for frequencies above 30 MHz.

Europe Long distance radio communications forecasts for frequencies above 1000 MHz.

Europe Long distance radio communications forecasts for VHF.

Europe Long distance radio communications forecasts for UHF.

Europe Long distance radio communications forecasts for SHF.

Europe Long distance radio communications forecasts for EHF.

Europe Long distance radio communications forecasts for THF.

http://www.dxinfocentre.com/tropo_eur.html

How to read the Tropospheric long distance radio forecast map.

http://www.dxinfocentre.com/propagation/hti.htm

Germany.

The Troposphere in Germany.

Radio contacts (shown by green crosses on a map) made by a Germany radio amateur on the 3400 MHz band.

http://www.df9ic.de/operation/grid_maps/map_3400_1.htm

North America.

The Troposphere in the USA.

The Troposphere in the US.

The Troposphere in Canada.

The Troposphere in North America.

North American map with Tropospheric Ducting Forecasts.

North America Long distance radio communications forecasts for frequencies above 1000 MHz and below 1000 MHz.

North America Long distance radio communications forecasts for VHF.

North America Long distance radio communications forecasts for UHF.

North America Long distance radio communications forecasts for SHF.

North America Long distance radio communications forecasts for EHF.

North America Long distance radio communications forecasts for THF.

http://www.dxinfocentre.com/tropo.html

How to read the Tropospheric long distance radio forecast map.

http://www.dxinfocentre.com/propagation/hti.htm

Online radio forums.

On-line forum for anyone with questions about getting started in the hobby of amateur radio.

On-line forum anything about amateur radio.

Everything radio online forums

http://forums.radioreference.com

Somalia,

East Africa,

Indian Ocean,

India,

South East Asia

and Australia.

The Troposphere in Somalia.

The Troposphere in East Africa.

The Troposphere in the Indian Ocean.

The Troposphere in India.

The Troposphere in South East Asia.

The Troposphere in Australia.

Somalia map with Tropospheric Ducting Forecasts.

East Africa map with Tropospheric Ducting Forecasts.

Indian Ocean map with Tropospheric Ducting Forecasts.

South East Asia map with Tropospheric Ducting Forecasts.

India map with Tropospheric Ducting Forecasts.

Australia map with Tropospheric Ducting Forecasts.

Tropospheric Ducting Forecasts for Long distance radio communications forecasts for VHF, UHF, SHF, EHF and THF.

http://www.dxinfocentre.com/tropo_ino.html#hour6

How to read the Tropospheric long distance radio forecast map.

http://www.dxinfocentre.com/propagation/hti.htm

Somaliland,

Northern Somalia,

North East Africa,

Middle East

and India.

Troposphere.

The Troposphere in Somaliland.

The Troposphere in Northern Somalia.

The Troposphere in North East Africa.

The Troposphere in the Middle East.

The Troposphere in India.

North East Africa map with Tropospheric Ducting Forecasts.

Northern Somalia map with Tropospheric Ducting Forecasts.

Somaliland map with Tropospheric Ducting Forecasts.

Middle East map with Tropospheric Ducting Forecasts.

India map with Tropospheric Ducting Forecasts.

Tropospheric Ducting Forecasts for Long distance radio communications forecasts for VHF, UHF, SHF, EHF and THF.

http://www.dxinfocentre.com/tropo_mid.html

How to read the Tropospheric long distance radio forecast map.

http://www.dxinfocentre.com/propagation/hti.htm

21.2

Cosmic Microwave Background Radiation from outer space.

Cosmic Microwave Background Radiation on SHF.

SHF Cosmic Microwave Background Radiation.

SHF CMBR.

This is the hobby of listening to radio signals that have travelled for more than 13 billion light years since the creation of the Universe.

Free computer software can be downloaded to help listeners enjoy this experience.

The Cosmic Microwave Background Radiation CMBR caused by the creation of the Universe (“Big bang”) was first heard on 4000 MHz (4 GHz) in 1963 by Penzias and Wilson.

https://theconversation.com/the-cmb-how-an-accidental-discovery-became-the-key-to-understanding-the-universe-45126

Also see Extremely High Frequency 279.5 GHz (279500 MHz).

https://home.fnal.gov/~gnedin/teaching/ASTR182/PDF/Lecture14.pdf

https://astronomy.com/magazine/2018/07/decoding-the-cosmic-microwave-background

https://www.science.org.au/curious/space-time/cosmic-microwave-background

https://astronomy.swin.edu.au/cosmos/C/Cosmic+microwave+background

https://www.universetoday.com/135288/what-is-the-cosmic-microwave-background/

https://www.esa.int/Science_Exploration/Space_Science/Herschel/Cosmic_Microwave_Background_CMB_radiation

https://www.forbes.com/sites/startswithabang/2018/09/18/this-is-how-we-know-the-cosmic-microwave-background-comes-from-the-big-bang/?sh=1fcd83f271c3

https://www.bbc.co.uk/bitesize/guides/zphppv4/revision/6

https://wwwmpa.mpa-garching.mpg.de/~komatsu/presentation/acoustic_seminar_07.ppt

https://www.anl.gov/article/lead-lab-selected-for-nextgeneration-cosmic-microwave-background-experiment

Listening to the Big Bang – in high fidelity (audio).

https://www.washington.edu/news/2013/04/04/listening-to-the-big-bang-in-high-fidelity-audio/


Video: Cosmic Microwave Background Explained.

https://www.youtube.com/watch?v=3tCMd1ytvWg/


Video: Cosmic Background Radiation Ambient Noise

https://www.youtube.com/watch/WB5jmdJvQeU/


Video: Cosmic Background Radiation.

https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/big-bang-expansion-topic/v/cosmic-background-radiation

See 22.2 (EHF Cosmic Microwave Background Radiation from outer space).

21.3

Experimental Radio.

SHF experimental radio.

Super High Frequency experimental radio.

Super High Frequency (Shf) experimental radio (er).

Shfer.

ShFER.

Includes legal no-license-needed SHF Experimental Radio Transmitters.

The hobby of listening to super high frequency very low power (micro) radio beacons including the Industrial, Scientific and Medical (ISM) bands of:

5725 MHz – 5875 MHz centred on 5800 MHz in the 5 centremetre (5 centremeter) band,

24000 MHz – 24250 MHz centred on 24125 MHz in the 1.25 centremetre (1.25 centremeter) band.

Super High Frequency SHF radio listeners can use free to download computer software to see on their computer very low power radio signals over large distances as well as radio signals under the noise.

As you do with the Sun protect the eye and the human body by never looking into or standing in front of a dish antenna or any other microwave antenna.


Australia.

SHF Experimental Radio in Australia.

Super High Frequency Experimental Radio in Australia.

Shfer in Australia.

ShFER in Australia.

The hobby of listening to low power radio signals in Australia.

Free software can be downloaded from the Internet to listen for low power radio signals under the noise.

As you do with the Sun protect the eye and the human body by never looking into or standing in front of a dish antenna or any other microwave antenna.

No radio transmitter licence (license) is needed in Australia on the following SHF bands (see conditions below).

Shfer bands in megahertz.

5725 MHz – 5795 MHz (5.725 GHz – 5.795 GHz, 5725000 kHz – 5795000 kHz).

5725 MHz – 5850 MHz (5.725 GHz – 5.850 GHz, 5.725 GHz – 5.85 GHz, 5725000 kHz – 5850000 kHz).

5725 MHz – 5875 MHz (5.725 GHz – 5.875 GHz, 5725000 kHz – 5875000 kHz).

5795 MHz – 5815 MHz (5.795 GHz – 5.815 GHz, 5795000 kHz – 5815000 kHz).

5815 MHz – 5875 MHz (5.815 GHz – 5.875 GHz, 5815000 kHz – 5875000 kHz).

10500 MHz – 10550 MHz (10.500 GHz – 10.550 GHz, 10.5 GHz – 10.55 GHz, 10500000 kHz – 10550000 kHz).

24000 MHz – 24250 MHz (24 GHz – 24.250 GHz, 24 GHz – 24.25 GHz, 24000000 kHz – 24250000 kHz)

SHF Bands where no radio transmitter licence (license) is needed in Australia (see conditions below).

5.725 GHz – 5.795 GHz 5 cm band (“5.7ger”, “5.7giger”, 5.7 GHz Experimental Radio, 5700 MHz Experimental Radio).

5.725 GHz – 5.850 GHz 5 cm band (“5.8ger”, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

5.725 GHz – 5.875 GHz 5 cm band (“5.8ger”, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

5.795 GHz – 5.815 GHz 5 cm band (“5.8ger”, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

5.815 GHz – 5.875 GHz 5 cm band (“5.8ger”, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

10.5 GHz – 10.55 GHz 3 cm band (“10.5ger”, “10.5giger”, 10.5 GHz Experimental Radio, 10500 MHz Experimental Radio).

24 GHz – 24.25 GHz 1.25 cm band (“24ger”, 24giger”, 24 GHz Experimental Radio, 24000 MHz Experimental Radio).

In the SHF bands where no transmitter licence (license) is needed the maximum radiated antenna power is shown for each band:

“5.7ger” 5 cm band 5.725 GHz – 5.795 GHz using 1 Watt for telecommand or telemetry transmitters.

“5.8ger” 5 cm band 5.725 GHz – 5.850 GHz using 4 Watts e.i.r.p. with digital modulation transmitters.

“5.8ger” 5 cm band 5.725 GHz – 5.850 GHz using 4 Watts e.i.r.p. with Frequency hopping transmitters with a minimum of 75 hopping frequencies.

“5.8ger” 5 cm band 5725 GHz – 5875 GHz using 25 mW e.i.r.p.

“5.8ger” 5 cm band 5.795 GHz – 5.815 GHz using 2 Watt for telecommand or telemetry transmitters.

“5.8ger” 5 cm band 5.815 GHz – 5.875 GHz using 1 Watt for telecommand or telemetry transmitters.

“10.5ger” 3 cm band 10.5 GHz – 10.55 GHz using 100 mW e.i.r.p.

“24ger” 1.25 cm band 24 GHz – 24.25 GHz using 100 mW e.i.r.p.

The Australian Radio communications (Low Interference Potential Devices LIPD class license 2000) with all amendments came into effect on 1 July 2009.

This document (LIPD 2000) includes the amendments to 2009 to allow devises that meet certain power levels on certain frequencies to be used without the need to apply for a license.

LIPD, (section 3, Note) states that LIPD devises must not cause radio frequency interference to other Radio communication devises.

The responsibility is on LIPD owners to resolve interference for example by retuning or stopping their operation.

Radio communications (Low Interference Potential Devices) Class Licence 2000, 1 July 2009, Schedule 1Transmitters, Pages 16 and 18 in an earlier document.

Australian Communications and Media Authority ACMA Regulations for Low Interference Potential Devices LIPD in 2009.

https://www.legislation.gov.au/ComLaw/legislation/legislativeinstrumentcompilation1.nsf/0/58DA61C0685CFB85CA2575ED0032C733/$file/RadcomLIPDClassLic2000.pdf


Canada.

SHF Experimental Radio in Canada.

Super High Frequency Experimental Radio in Canada.

Shfer in Canada.

ShFER in Canada.

The hobby of listening to low power radio signals in Canada.

Free software can be downloaded from the Internet to listen for low power radio signals under the noise.

As you do with the Sun protect the eye and the human body by never looking into or standing in front of a dish antenna or any other microwave antenna.

No radio transmitter licence (license) is needed in Canada on the following SHF bands (see conditions below).

Shfer bands in megahertz.

5725 MHz – 5875 MHz (5.725 GHz – 5.875 GHz, 5725000 kHz – 5875000 kHz).

24000 MHz – 24250 MHz (24 GHz – 24.250 GHz, 24 GHz – 24.25 GHz, 24000000 kHz – 24250000 kHz).

SHF Bands where no radio transmitter licence (license) is needed in Canada (see conditions below).

5725 MHz – 5875 MHz 5 cm band (“5.8ger”, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

24 GHz – 24.25 GHz 1.25 cm band (“24ger”, 24giger”, 24 GHz Experimental Radio, 24000 MHz Experimental Radio).

In the SHF bands where no transmitter licence (license) is needed the maximum radiated antenna power is shown for each band:

“5.8ger” 5 cm band 5.725 GHz – 5.875 GHz using a field strength of 50 millivolts per metre (50 mV/m) measured 3 metres away from the antenna. This is equivalent to a maximum antenna radiated power of 0.75 mW e.i.r.p.

“24ger” 1.25 cm band 24 GHz – 24.25 GHz using a field strength of 250 millivolts per metre (50 mV/m) measured at 3 metres away from the antenna. This is equivalent to a maximum antenna radiated power of 0.19 mW e.i.r.p. (Industry Canada radio regulations, 30 July 2009, RSS-310 - Low-power Licence-exempt Radio communication Devices, 3.4.2 Radiated Limits, 3.10 (the 24 GHz band).

Industry Canada radio regulations, 30 July 2009, RSS-210 - Low-power licence-exempt radio communication devices (all frequency bands), Annex 2 (Devices operating in non-service specific licence-exempt bands in Canada), section 2.9 (the 5.8 GHz band).

This was updated in 2020 as follows

http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08448.html


New Zealand.

SHF Experimental Radio in New Zealand.

Super High Frequency Experimental Radio in New Zealand.

Shfer in New Zealand.

ShFER in New Zealand.

The hobby of listening to low power radio signals in New Zealand.

Free software can be downloaded from the Internet to listen for low power radio signals under the noise.

As you do with the Sun protect the eye and the human body by never looking into or standing in front of a dish antenna or any other microwave antenna.

No radio transmitter licence (license) is needed in New Zealand on the following SHF bands (see conditions below).

Shfer bands in megahertz.

5725 MHz – 5875 MHz (5.725 GHz – 5.875 GHz, 5725000 kHz – 5875000 kHz).

24000 MHz – 24250 MHz (24 GHz – 24.250 GHz, 24 GHz – 24.25 GHz, 24000000 kHz – 24250000 kHz)

SHF Bands where no radio transmitter licence (license) is needed in New Zealand (see conditions below).

5.725 GHz – 5.875 GHz 5 cm band (“5.8ger”, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

24 GHz – 24.25 GHz 1.25 cm band (“24ger”, 24giger”, 24 GHz Experimental Radio, 24000 MHz Experimental Radio).

In the SHF bands where no transmitter licence (license) is needed the maximum radiated antenna power is shown for each band:

“5.8ger” 5 cm band 5.725 GHz – 5.875 GHz maximum peak power of 1 Watt e.i.r.p.

“5.8ger” 5 cm band 5.725 GHz – 5.875 GHz maximum peak power of 4 Watts e.i.r.p. using gain antennas with frequency hopping or digital modulation transmitters.

“24ger” 1.25 cm band 24 GHz – 24.25 GHz maximum peak power of 1 Watt e.i.r.p.

If interference results the user must change frequency, reduce power or cease operation.

This was updated in 2020 as follows

Radiocommunications Regulations (General User Radio License for Short Range Devices) Notice 2020. From 0 - 246 GHz.

https://gazette.govt.nz/notice/id/2020-go5045

USA.

SHF Experimental Radio in the USA.

SHF Experimental Radio in the US.

Super High Frequency Experimental Radio in the USA.

Super High Frequency Experimental Radio in the US.

Shfer in the USA.

Shfer in the US.

ShFER in the USA.

ShFER in the US.

As you do with the Sun protect the eye and the human body by never looking into or standing in front of a dish antenna or any other microwave antenna.

No radio transmitter licence (license) is needed in the USA on the following SHF bands (see conditions below).

Shfer bands in megahertz.

5725 MHz – 5850 MHz,

24050 MHz – 24250 MHz.

Shfer bands in megahertz.

5725.000 MHz – 5850.000 MHz,

24050.000 MHz – 24250.000 MHz.

Shfer bands in kilohertz.

5725000 kHz – 5850000 kHz,

24050000 kHz – 24250000 kHz.

Shfer bands in gigahertz.

5.725 GHz – 5.850 GHz,

24.050 GHz – 24.250 GHz.

Shfer bands in gigahertz.

5.725 GHz – 5.85 GHz,

24.05 GHz – 24.25 GHz.

UHF Bands where no radio transmitter licence (license) is needed in the USA (see conditions below).

5.725 GHz – 5.850 GHz 5 cm band (5.8ger, “5.8giger”, 5.8 GHz Experimental Radio, 5800 MHz Experimental Radio).

24.05 GHz – 24.25 GHz 1.25 cm band (24ger, “24giger”, 24 GHz Experimental Radio, 24000 MHz.

In the SHF bands where no transmitter licence (license) is needed the maximum radiated antenna power is shown for each band:

“5.8ger” 5 cm band 5.725 GHz – 5.85 GHz using 1 Watt e.i.r.p. with hopping transmitters that have 75 or more hopping channels.

“5.8ger” 5 cm band 5.725 GHz – 5.85 GHz using 1 Watt e.i.r.p. with digital modulation transmitters.

“24ger” 1.25 cm band 24.05 GHz – 24.25 GHz using a maximum field strength of 2500 mV per metre measured 3 meters away from the antenna for fixed point to point operation. This is for transmitters in a fixed location transmitting to a fixed remote location. Antenna gain must be at least 33 dbi or the main lobe of the antenna radiation beam width must not be more than 3.5 degrees. The power of the transmitter must be reduced so that it is not more than 2500 mV per meter measured 3 meters away from the antenna (2500 mV per metre measured 3 metres away from the antenna).

The FCC Federal Communications Commission 10 July 2008 radio regulations, Part 15 rules for Radio Frequency devices outlines the USA radio regulations under which an intended radiator of radio waves may be operated without a license.

Unlicensed transmitters (intended radiators) must not cause interference to other radio or TV stations. Unlicensed radio stations (intended radiators) are not protected from interference.

Part 15 rules, page 13, section 15.23 allow home built transmitters (Intentional radiators).

Home-built Uhfer transmitter radio regulations for Part 15 compliant devices.

Home built Uhfer transmitters.

Home built Uhfer radio transmitters.

Home constructed Uhfer radio transmitters.

Home-made UHF radio transmitters.

Home made UHF radio transmitter.

Home-made UHF radio transmitter.

Home-made UHF transmitter.

Home built radio transmitters.

Home built radio transmitter.

Home constructed radio transmitters.

Home constructed radio transmitter.

Home made radio transmitters.

Home made radio transmitter.

The FCC Part 15 radio regulations for home-made radio transmitter devices.

FCC 10 July 2008 Part 15 radio regulations, page 13, section 15.23 “Home-built devices” states:

(a) Equipment authorization is not required for devices that are not marketed, are not constructed from a kit and are built in quantities of 5 or less for personal use.

(b) It is recognized that the individual builder of Home-built equipment may not possess the means to perform the measurements for determining compliance with the regulations. In this case the builder is expected to employ good engineering practices to meet specified technical standards to the greatest extent practicable.

Section 15.5 also applies to home made devices (transmitters).

Page 9, Section 15.5 “General conditions of operation”.

(a). No person has a right to the continued use of current frequencies (this means that any frequency might be re-allocated for a different use in future).

(b). No harmful radio or TV interference is to be caused and interference from licensed or unlicensed stations must be accepted.

(c). Operation of the devise (transmitter) must cease if an FCC representative informs you of harmful interference caused by your devise. Operation can only restart once the cause of the interference has been corrected.

(d). Transmitters causing damped wave are prohibited (not allowed).

Part 15 rules, page 80 is the list of frequencies where intended radio emissions (transmissions) is not permitted. Only spurious emission (such as unavoidable low level harmonic radiation as a result of transmitting on another frequency) is allowed in those restricted bands.

The FCC part 15 radio regulations in the USA dated 10 July 2008.

https://en.wikipedia.org/wiki/Title_47_CFR_Part_15

https://www.govinfo.gov/content/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-part15.pdf

https://www.law.cornell.edu/cfr/text/47/part-15

How to build a radio station in Somalia.

How to build a radio station antenna in Somalia.

Close up of the team on top the tower in Galkayo, North East Somalia.

Close up of the Radio Free Somalia (“Free for all to use” later known as Radio Galkayo) team on top the 30 metre (30 meter) tower at the Galkayo Police station in Galkayo, North East Somalia.

North East Somalia became the Puntland State of Somalia on the 1st August 1998.

(Photo Sam Voron 6O0A, VK2BVS, directing the lifting operations from the ground Abdikarim Nur Mohamud 6O0W).

Index https://sites.google.com/site/somaliaamateurradio/index1

Contact: Sam Voron VK2BVS, 6O0A.

Email somaliahamradio@yahoo.com