STL TX AND RX 330MHZ

Everything technical about radio can be discussed here, whether it's transmitting or receiving. Guides, charts, diagrams, etc. are all welcome.
radium98
proppa neck!
proppa neck!
Posts: 907
Joined: Fri Aug 26, 2016 7:01 pm

Re: STL TX AND RX 330MHZ

Post by radium98 » Sat Apr 13, 2019 8:09 pm

the discriminator part.
You do not have the required permissions to view the files attached to this post.

TimB
who u callin ne guy bruv
who u callin ne guy bruv
Posts: 20
Joined: Mon Apr 01, 2019 12:07 pm

Re: STL TX AND RX 330MHZ

Post by TimB » Tue Apr 16, 2019 4:22 pm

careful using 330mhz due to the Military airband

if you're not in or Near the UK or a NATO Country then obviously ignore this
TBH even in somewhere like Dublin i'd be worried . when the planes are at exercise height over somewhere like RAF Valley anything in Dublin will come in strongly

radium98
proppa neck!
proppa neck!
Posts: 907
Joined: Fri Aug 26, 2016 7:01 pm

Re: STL TX AND RX 330MHZ

Post by radium98 » Thu Apr 18, 2019 6:54 am

it will be for very short distance about 700 meters and on 205.3 mhz
can you give me the spectrum of frequency range
thanks

TimB
who u callin ne guy bruv
who u callin ne guy bruv
Posts: 20
Joined: Mon Apr 01, 2019 12:07 pm

Re: STL TX AND RX 330MHZ

Post by TimB » Fri Apr 19, 2019 5:44 pm

Oh thats cool then
230 - 400mhz is the military airband range

205.3 sounds like a good choice

Good luck with it

Albert H
proppa neck!
proppa neck!
Posts: 2737
Joined: Tue Apr 05, 2016 1:23 am

Re: STL TX AND RX 330MHZ

Post by Albert H » Sat Apr 20, 2019 3:27 am

205MHz here is right in the middle of the DAB band. It is possible (and quite easy) to hide a link between DAB "bouquets", but you'll need a better receiver than the London muppets can build you to recover the signal!
"Why is my rig humming?"
"Because it doesn't know the words!"
;)

radium98
proppa neck!
proppa neck!
Posts: 907
Joined: Fri Aug 26, 2016 7:01 pm

Re: STL TX AND RX 330MHZ

Post by radium98 » Sat Apr 20, 2019 7:25 am

who can share the whole frequency spectrum chart?

Albert H
proppa neck!
proppa neck!
Posts: 2737
Joined: Tue Apr 05, 2016 1:23 am

Re: STL TX AND RX 330MHZ

Post by Albert H » Sun Apr 21, 2019 4:07 am

It depends what country you're in!
"Why is my rig humming?"
"Because it doesn't know the words!"
;)

radium98
proppa neck!
proppa neck!
Posts: 907
Joined: Fri Aug 26, 2016 7:01 pm

Re: STL TX AND RX 330MHZ

Post by radium98 » Sun Apr 21, 2019 6:57 am

Lebanon beirut middle east

radium98
proppa neck!
proppa neck!
Posts: 907
Joined: Fri Aug 26, 2016 7:01 pm

Re: STL TX AND RX 330MHZ

Post by radium98 » Sun Apr 21, 2019 6:59 am

But the spectrum of frequency is standars like tv from 48 to 862mhz then ....fm 88to108 and fm from 76to89.9 japenese band ....air band from 108 to 130 i gues and so on i was having a paper that i lost

Albert H
proppa neck!
proppa neck!
Posts: 2737
Joined: Tue Apr 05, 2016 1:23 am

Re: STL TX AND RX 330MHZ

Post by Albert H » Sun Apr 21, 2019 6:51 pm

In the UK, free-radiating TV is only from 490 - 670 MHz these days. The Japanese VHF broadcast band is 76 - 95 MHz, in Europe it's (mostly) 87.6 - 107.9 MHz. The aircraft band is 118 - 137 MHz throughout the world, 150 - 225 MHz is used in some parts of the world for TV broadcasting, in Europe it's (mostly) used for DAB broadcasting. 225 - 390 is used for the military, 400 - 470 is used for short range communications (apart from the 440 - 450MHz amateur band), 470 - 582MHz is Band IV TV (my favourite place to link - in between the TV channels, using TV aerials), 582 - 862MHz is Band V TV......

These allocations do vary from country to country, but you should find that they're largely correct.

I always liked to link in Band IV. The gear's not difficult to build, and there are cheap TV receiver "front-ends" that you can easily use for the receiver. The aerials are cheap and high gain without being too big, and nobody notices a TV aerial on a rooftop! Make your Link Transmitter and Link Receiver use 75Ω aerial connections, and you can use TV coax and aerials!
"Why is my rig humming?"
"Because it doesn't know the words!"
;)

radium98
proppa neck!
proppa neck!
Posts: 907
Joined: Fri Aug 26, 2016 7:01 pm

Re: STL TX AND RX 330MHZ

Post by radium98 » Sun Apr 21, 2019 7:27 pm

thank you for explenation albert

Post Reply