Where Can I Find Frequencies?

[Brett_Henderson]

I've been thinking about getting this kit to build, but I'm hesitent on spending $50 for a kit, and mess up and it not work

http://www.ramseyelectronics.com/cgi-bi ... n&key=AR1C

That would be a lot of fun.. and good learning

[Fozzer]

...things to be aware of...;)...>>>>

UK Regulations: Restrictions on use:

http://www.ofcom.org.uk/radiocomms/ifi/ ... t/guidance

http://www.police-scanner.info/scanning ... r-laws.htm

Paul...G-BPLF... 8-)

[Brett_Henderson]

...things to be aware of...;)...>>>>

UK Regulations: Restrictions on use:

http://www.ofcom.org.uk/radiocomms/ifi/ ... t/guidance

http://www.police-scanner.info/scanning ... r-laws.htm

Paul...G-BPLF... 8-)

Noted  ;)

[Hagar]

...things to be aware of...;)...>>>>

UK Regulations: Restrictions on use:

http://www.ofcom.org.uk/radiocomms/ifi/ ... t/guidance

[glow=yellow,2,300]http://www.police-scanner.info/scanning/police-scanner-laws.htm[/glow]

Paul...G-BPLF... 8-)

The second one appears to be the US regulations.

[Fozzer]

As an Electronics Engineer, I spent many years in my Garden Shed designing and building Valve Radios, Valve Audio Amplifiers, and Valve Radio Transmitters...anything with glass Valves, (still got loads of them!).

..but I could never be able to "operate" the Transmitters without a Broadcast Transmitter Licence....but it was a lot of fun building them... ...!

Paul....Roger, Roger... ...!

[Brett_Henderson]

It's pretty strictly regulated here too.. You can't just build a transmitter and start broadcasting  :D

.. well.. you CAN, on the Citizen Bands and the new UHF "personal communication device" frequencies, that all these new radios use.

http://www.bestbuy.com/site/olspage.jsp ... 8043134008

As far as listening goes.. well.. common sense applies. No matter HOW many laws they pass, it's impossible to stop someone from recieving a radio broadcast  ;)

[Fozzer]

[quote]It's pretty strictly regulated here too.. You can't just build a transmitter and start broadcasting

[U4EA]

While were on the radio subject, let's have a 'way-back' moment!

Who here as ever strung copper filament across the backyard and hooked up a crystal radio that they built from a kit?

Note to da youngsters.....no need for batteries!!!

[Fozzer]

While were on the radio subject, let's have a 'way-back' moment!

Who here as ever strung copper filament across the backyard and hooked up a crystal radio that they built from a kit?

Note to da youngsters.....no need for batteries!!! :o

Hand up.... [smiley=thumbsup.gif]...!

Had mine in the early 1950's.... ;)...!

A Bakelite Case, with a "Cats Whisker" and a Crystal, a tuning coil, and two terminals for a pair of Headphones...

...and an EXTREMELY long aerial, stretching the total length of the garden!

Finally abandoned that (futile) idea, to to design and build my own Valve Radio sets....much more sensible... ;D...!

Paul....lost in the Crystal Mists of Time... ;D...!

...nostalgia... ;)....>>>

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

The only thing I ever received, was a pair of hot ears, through wearing headphone for many hours in the vain hope on hearing "something"...which rarely happened... ...!

An interesting fact: A Radio signal reception could often be obtained just by connecting the Headphones directly to the long Aerial. The coil within the headphones often tuned itself to an incoming signal; (AM Amplitude Modulated)......!

[Hagar]

While were on the radio subject, let's have a 'way-back' moment!

Who here as ever strung copper filament across the backyard and hooked up a crystal radio that they built from a kit?

Note to da youngsters.....no need for batteries!!!

Hand up.... [smiley=thumbsup.gif]...!

Had mine in the early 1950's.... ...!

A Bakelite Case, with a "Cats Whisker" and a Crystal, a tuning coil, and two terminals for a pair of Headphones...

...and an EXTREMELY long aerial, stretching the total length of the garden!

I made my own from an article in the Eagle comic (or it could have been the Boy's Own Paper). Mine was one of the later types with a germanium diode & variable capacitor for tuning.

[Fozzer]

For communication over relatively short distances, I finally abandoned the "Crystal Radio" idea, and replaced it with an improved, later version, involving two Baked Bean tins, and a long piece of string... ...!



Worked a treat between my Bedroom window, and the Bedroom window of the delectably young Schoolgirl living next door... ...!

It doesn't happen any more... ...!

Paul... ....!

[BFMF]

[quote]That would be an excellent choice. It's a newer version of my scanner. You'd be hard-pressed to outgrow that thing.. I'm still learning to use mine, and THAT one has more features..

[Brett_Henderson]

[quote][quote]That would be an excellent choice. It's a newer version of my scanner. You'd be hard-pressed to outgrow that thing.. I'm still learning to use mine, and THAT one has more features..