If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

MW Radio

Elmo · 2006-11-26 10:38:22

Are there many new radios being sold with MW (medium wave) installed? I have just noticed that most radios only have AM/FM signals. Which gets me asking why do RTE Radio broadcast alternative programming on RTE RADIO 1 MW when newer radios cann't pick it up? Is the AM spectrum used at all? If this needs to be moved to…

Comments

#32 03-12-2006 01:15AM

watty

Registered Users, Registered Users 2 Posts: 32,461 ✭✭✭✭

Join Date: May 2001

Posts: 31563

It isn't very popular anywhere.

The exams in UK (3 stages of licence) or exam in Ireland (1 licence equivalent to UK full Licence) aren't very hard though.

Repeaters are 8W to 50W simultanous TX and RX on two separate frequencies on vey high sites like mountains allowing hand held maybe 20 miles range, Mobile 40 to 80miles and basestations at home up to 120 Miles from repeater.

Some repeaters are linked by radio or by Internet.

"Simplex" operation users use one frequency they both TX and RX on.
"Repeater" is a little like half Duplex. On VHF your TX frequency is 600kHz below your RX. The "Repeater" runs full duplex with the frequency shift of course reversed.

UHF repeaters use +1.6 or +7.6MHz shift. 10M/29MHz repeaters use 100kHz shift and usually two sites (one TX and one RX 5km to 10km apart) linked by VHF, UHF or WiFi.

0