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  • AM
    ...o identical audio sidebands. SSB only transmits one audio sideband and the receiver generates the carrier, making it much more efficient. The downsides to SSB ...n the medium wave broadcast band or the AM broadcast band, the shortwave [[Shortwave Broadcast Bands|broadcast bands]], for [[11_meter|11 meter band]] 27 MHz [[
    3 KB (467 words) - 16:09, 6 March 2024
  • List of Pirate Radio Frequencies
    ...elatively small bands that can be quickly scanned with a traditional radio/receiver or watched/recorded with a [[Software Defined Radio|SDR]]). This allows lis ...pirates are very different and mediumwave pirates are common (more so than shortwave). AM is nearly always used, so all frequencies are AM unless otherwise note
    8 KB (1,203 words) - 18:37, 13 March 2024
  • SSTV
    ...1_CW_SSTV_Channels|11 meter operators]]) occasionally transmit pictures on shortwave by this method. Regular [[amateur radio]] SSTV activity is centered on 1423 ...In a pinch, a microphone connected to the sound card can be held up to the receiver's speaker. A decent, free software package for transmitting and receiving S
    4 KB (560 words) - 18:44, 13 March 2024
  • Sony ICF SW-7600G
    ...ercial FM receiver. About the size of a paperback book, the 7600G receives shortwave signals in [[AM]], [[USB]], and [[SSB]] for the frequency range of 150 khz ... in place of the integrated whip antenna, and gives improved reception for shortwave stations. The radio can be powered by four AA batteries, on which it can ru
    2 KB (257 words) - 02:53, 1 October 2007
  • Radio Shack DX-440
    ... a moderately-sized, battery-powered, portable shortwave and commercial FM receiver. It was manufactured by Sangean from 1989 to 1995, and is still frequently ...y coverage is 150 khz to 29999 khz, as well as the commercial FM band. For shortwave, reception is in [[AM]], and can be switched to [[SSB]]. A beat frequency o
    2 KB (258 words) - 02:42, 1 October 2007
  • Cadaverlac
    ...ac in 1993 in Throwupton (Upton) Kentucky while working there installing a shortwave transmitter at WJCR, a well-known Bible Beater station at the time. ...plifier with an outpoot of 8-10 Watts. RF exciter is a Gonset G77 and the receiver is a Gonset G66 both highly modified. All B+ voltages on board The Cadaver
    1 KB (238 words) - 07:54, 3 February 2009
  • Notch Filter
    ...arply-defined band, or "notch", of frequencies from reception. Usually, in shortwave receivers, the filter operates on the audio output; however, the concept of ...ypically produces a fairly pure tone, or tones, in the audio output of the receiver. Since a pure tone is narrow in frequency range, and has sharp boundaries,
    976 B (157 words) - 16:10, 26 January 2010
  • Yupiteru MVT-9000
    ...not in the same league as a dedicated shortwave receiver, it is usable for shortwave reception, and it does very well at VHF frequencies and above.
    830 B (128 words) - 17:21, 29 October 2007
  • Sony ICF-2010
    ...004.|300 px]]The Sony ICF-2010 was an extremely popular portable shortwave receiver manufactured from the early 80's to about 2004. It is highly regarded for i
    536 B (85 words) - 20:52, 2 January 2009
  • PHFER Beacon Madness
    ...fashion or another. He probably got his start into the world of radio via Shortwave Listening and therefore developed the ability to enjoy long moments of soli ...w experience. He feels young once again. Sitting in front of his shortwave receiver right before and after sun rise he finally logs a new PHFER beacon and the
    4 KB (717 words) - 17:41, 19 July 2011
  • Letter beacon
    # Harry L. Helms, W5HLH: How to tune the secret shortwave spectrum, Tab Books, Inc., ISBN 0-8306-1185-1, 1981, pp. 141–143. ...=zrVcLd9jHpk Letter Beacon "D"] on 5153.7 kHz using a Sangean 909 portable receiver (Youtube video).
    21 KB (2,975 words) - 17:57, 5 March 2022
  • Radio beacon
    ...ceiver is adequate for reception of local beacons, specialized techniques (receiver preselectors, noise limiters and narrow IF filters) are required for the re
    19 KB (2,829 words) - 14:25, 28 June 2023
  • Radio propagation beacon
    ...o]] (SDR), a GPS locked 144 MHz down-converter and 1 PPS signal from a GPS receiver to time stamp received signals. Open source PC software by Hermann, DL3HVH, # G. Jacobs, W3ASK, T.J. Cohen, N4XX and R.B. Rose, K6GKU: "The New Shortwave Propagation Handbook", ''CQ Communications, Inc.'', New York, ISBN 0-945016
    42 KB (6,041 words) - 14:09, 24 March 2023
  • DXing
    === Shortwave DX === ...national broadcasters, whose signals propagate around the world on the HF (shortwave) bands has been popular with both casual listeners and DXing hobbyists.
    11 KB (1,720 words) - 10:59, 4 August 2011
  • Ionosonde
    * A tracking HF receiver which can automatically track the frequency of the transmitter. ...here, at heights of 100–400 km, and their echos are received by the receiver and analyzed by the control system. The result is displayed in the form of
    12 KB (1,810 words) - 19:49, 17 November 2012
  • Ionosphere
    ...n the path, the maximum distance would be determined by the tranmitter and receiver antenna heights and by the bulge (or curvature) of the earth. Drawing from # G. Jacobs, W3ASK, T.J. Cohen, N4XX and R.B. Rose, K6GKU: "The new Shortwave Propagation Handbook", ''CQ Communications, Inc.'', ISBN 0-943016-11-8, 199
    19 KB (3,028 words) - 19:26, 27 May 2020
  • Software Defined Radio
    A '''software defined radio''', or '''SDR''', is a radio transmitter or receiver where some functions tradionally performed with RF and IF circuits (e.g. mi A basic SDR receiver consists of a personal computer equipped with a sound card, preceeded by an
    2 KB (336 words) - 17:59, 18 May 2023
  • A Brief Survey of HF Receiving Equipment
    with performance and options you would find on a communications receiver. Examples of these would include the Drake SW-8A and the Eton/Grundig E1 ( * [https://wiki.radioreference.com/index.php/Receiver_Software_Applications Receiver Software Applications]
    10 KB (1,612 words) - 10:25, 3 September 2020
  • CB
    ...ply changing the PLL reference crystal and making minor adjustments to the receiver and transmitter components if required. Many modern multi-country CB radio *500 kHz - 9999 kHz AM receiver (AM broadcast and shortwave broadcast receive)
    226 KB (34,731 words) - 17:45, 22 April 2024
  • Signal Identification
    With the advent and proliferation of SDRs to the hobby of shortwave listening, and the often associated wideband waterfall / spectrum displays, ...nitor the HF spectrum. Often people with no prior exposure to HF radio or shortwave listening first gravitate to these kinds of services, as they take no inves
    17 KB (2,552 words) - 14:29, 28 June 2023

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