"Cheap" Commercial SW Radio? - Page 1
Forum section: electronics / rf-microwave

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 05, 2019, 03:23:42 pm
content: HiWe have here in Austria theoretically a Band for Transmission in Austria from one end the Country to the other. Sure I have to ask the Authorities first for Licence and other legal stuff. So its just a proof of concept.The is 9.775khz - 9.900khz, 11.650khz - 11.700khz, 11.975khz - 12.050khzFSB-RR035 - Max. ERP 24 dBW5.147 On condition that harmful interference is not caused to the broadcasting service, frequencies in the bands 9 775 - 9 900 kHz, 11 650 - 11 700 kHz and 11 975 - 12 050 kHz may be used by stations in the fixed service communicating only within the boundary of the country in which they are located, each station using a total radiated power not exceeding 24 dBW.Is there a Radio who support that Freq Range?Thanks

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 05, 2019, 03:54:55 pm
content: QuoteWe have a House and I will install an Antenna Mast next to the House if its in some € range I could afford.Can someone translate ERP 24 dBW in something I could know?

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 05, 2019, 04:11:39 pm
content: nice a Amateur Hobbyist could just use 100W max. (on Amateur Radio Freq).How to make sure the Signal is only inside the Country?

author: CatalinaWOW
author_rank: Super Contributor
timestamp: October 05, 2019, 05:03:43 pm
content: I am sure the "inside country rule" has nothing to do with power. It just means you can't talk to someone outside the country. Determined by station ID or just asking. And generally enforced by honor system. But a RDF team could identify violations and in such situations usually come down hard on violators. The instructive example for those tempted to cheat.

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 05, 2019, 05:10:47 pm
content: Well when I transmitt something how should the know who also receive it?I never heard or saw some transmissions there beside of the normal AM Radio.

author: borjam
author_rank: Unknown
timestamp: October 05, 2019, 05:35:29 pm
content: Quote from: Lord of nothing on October 05, 2019, 03:23:42 pmLicense application, a proper technical project to justify it... forget it

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 05, 2019, 06:05:49 pm
content: Do you ever try it here?

author: CatalinaWOW
author_rank: Super Contributor
timestamp: October 06, 2019, 03:12:27 am
content: Quote from: Lord of nothing on October 05, 2019, 05:10:47 pmIt says communicate with, not broadcast to. So you talk. Someone talks back to you. Repeat as necessary. Someone smart enough to operate a radio should be able to figure out a way in those early messages whether the person on the other end meets the requirement. Deep stuff like asking "Where are you transmitting from?" "Why are you speaking Swahili?" If they are doing a good job of faking the problem is theirs, you did due diligence.

author: vk6zgo
author_rank: Super Contributor
timestamp: October 06, 2019, 05:05:46 am
content: Quote from: Lord of nothing on October 05, 2019, 03:23:42 pmI think you will find that it is for HF Comms between fixed points, maybe interlinked with the normal telephone service.The reason they say "harmful interference is not caused to the broadcasting service" is that those frequencies are either within, or bordering upon the Shortwave Broadcast frequency allocations.It is not a way for individuals to avoid the requirements for an Amateur Radio Licence, or the restrictions of CB radio.You really need to follow it up further with your licencing authority, but I wouldn't get my hopes up!

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 06, 2019, 09:24:38 am
content: QuoteDo you know there are many Digital Transmission Techniques who require 0 Voice Service.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: October 06, 2019, 04:42:11 pm
content: Quote from: Lord of nothing on October 06, 2019, 09:24:38 amDo.you know that question - response sequences are possible through digital media. There is even a name for it.Handshaking. Willful ignorance will be a stunningly bad defense when your local authorities decide to enforce their reasonably clear regulations.

author: borjam
author_rank: Unknown
timestamp: October 06, 2019, 06:24:29 pm
content: Quote from: Lord of nothing on October 06, 2019, 09:24:38 amI don't get why you don't apply for an amateur radio license. It grants powers beyond those of any other radio spectrum user. You can use self built equipment (any other users must use approved equipment), frequency bands across the full spectrum, and a lot of freedom.The route you are considering would be much more expensive. And I doubt the license would be granted in the first place. As far as I know it's not easy.

author: Lord of nothing
author_rank: Super Contributor
timestamp: October 07, 2019, 12:00:11 am
content: QuoteBecause I cant Communicate with other People.QuoteNope the are limited and very tide limitation whats permit to do. I even are not allowed to send encrypt Traffic.QuoteDepend what the charge for.QuoteWhy not?

author: mansaxel
author_rank: Super Contributor
timestamp: October 13, 2019, 08:20:58 pm
content: Quote from: blueskull on October 07, 2019, 12:35:44 amIn Sweden, encryption, even with key withheld from the public, is allowed in amateur traffic; but it must be possible to identify the transmitting and receiving station by callsign. Since most other countries explicitly disallow it, traffic must stay domestic.