[PCR-1000] Newbie Question

Tue, 7 Jan 2003 10:18:19 -0500

Hi, Bill,

WFM is wideband FM. This is the FM signal you will find in the FM =
broadcast band.

NFM is narrowband FM. This is the FM signal you will hear on amateur =
repeaters and some business communications.  This signal will be common =
on VHF and up.

AM is amplitude modulation. This is the type of signal you will find in =
the AM broadcast band, and most international shortwave transmissions.

USB and LSB are upper sideband and lower sideband, respectively. This is =
a form of AM in which the carrier signal and one of the sidebands have =
been removed.  If you listen to SSB (single sideband) on an AM receiver, =
it sounds muffled and distorted. A receiver that uses a "beat-frequency =
oscillator" reinserts the carrier at the receiver detector and the =
signal once again sounds like normal audio.  You will find SSB stations =
on the amateur bands and spread throughout the shortwave spectrum.

CW is continuous wave. It is generally used to describe a Morse-code =
transmission using on/off keyed CW.  It is used on most amateur bands, =
and is common on MF/HF (the 1.8-28 MHz amateur bands).

FSK is frequency-shift keying. It is used for various digital =
transmissions, such as radioteletype (RTTY).  You will find this type of =
signal on all of the MF/HF bands, although not all can be decoded by the =
PCR-1000.

73,=20
Ed Hare, W1RFI
ARRL Lab
225 Main St
Newington, CT 06111
Tel: 860-594-0318
Internet: [email protected]
Web: http://www.arrl.org/tis

> -----Original Message-----
> From: Bill & Tammie [mailto:[email protected]]
> Sent: Monday, January 06, 2003 9:51 PM
> To: Undisclosed-Recipient:;@mailman.qth.net
> Subject: [PCR-1000] Newbie Question
>=20
>=20
> Can someone explain the basic of these   =20
> (WFM,LSB,USB,AM,CW,FSK,NFM) on how
> I should use each of these when scanning? I have the book "Now You're
> Talking" on the way in the mail but it won't get here before=20
> my PCR-1000
> arrives. Is there a web site out there that can give me the basic?
>=20
> Thanks alot,
> Bill
>=20
> _________________________________________________________________
> PCR-1000 Mailing List
> Post Address: [email protected]
> Subscribe / Unsubscribe:=20
> http://mailman.qth.net/mailman/listinfo/pcr-1000
> Mailman FAQ and Users Guide
> http://mailman.qth.net/faq.htm
>=20