1268 South Ogden Street Denver, Colorado 80210 USA
email Phone: 303-722-2257 FAX: 303-744-8876
9 a.m. - 5 p.m. MST Monday - Friday
1268 South Ogden Street Denver, Colorado 80210 USA
email
Phone:
303-722-2257
FAX:
303-744-8876
9 a.m. - 5 p.m. MST Monday - Friday
| SE-3 MK III Deluxe | Interfacing Shortwave Radio to SE-3 | ||||
| Sherwood Engineering Inc. Home Page | Cooling Kits | Drake R4-C | Catalogues | Filters | Additional Products |
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Receiver Sound Test Without & With the SE-3 MK III D |
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Pick the format you prefer, mp3 or RealAudio, to Listen to a recording of the BBC Without & With the use of the SE-3. |
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Receiver
WITHOUT SE-3 MK III D mp3 |
Receiver
WITH SE-3 MK III D mp3 |
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| About the Recordings | |||
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The BBC recording was made in Cincinnati, Ohio from a Caribbean relay station on 49 meters (6 MHz).
The four minute excerpt came from a 30 minute recording beginning before sunrise and running until after sunrise.
A prototype Sherwood active antenna was fed through a Drake R-7 antenna splitter, with outputs to the two receivers.
An Icom R-70 was used for the recording
WITHOUT.
The R-70 has a 6 kHz bandwidth filter which was center tuned (carrier in the middle of the passband). A Drake R-8 was used for the recording utilizing the SE-3, also using its 6 kHz filter. The signal was side tuned on the R-8 by placing the carrier on the edge of the filter, which can reduce interference and double the fidelity of the detected audio. The SE-3 allows side tuning of the signal, providing passband tuning on AM with any model receiver.
The two recordings made simultaneously were then produced to our Internet website using Real Audio Producer G2. After you have listened to the WITHOUT recording then listen to the same broadcast through processing WITH the SE-3. The playback file is 4 minutes to give you a good comparison. |
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1268 South Ogden Street Denver, Colorado 80210 USA
email
Phone:
303-722-2257
FAX:
303-744-8876
9 a.m. - 5 p.m. MST Monday - Friday
