1268 South Ogden Street Denver, Colorado 80210 USA
email SEI Phone: 303-722-2257 FAX: 303-744-8876
9 a.m. - 5 p.m. (Mountain) Monday - Friday
VISA, Mastercard, & American Express Welcome
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1268 South Ogden Street Denver, Colorado 80210 USAemail SEI Phone: 303-722-2257 FAX: 303-744-88769 a.m. - 5 p.m. (Mountain) Monday - FridayVISA, Mastercard, & American Express Welcome
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How To Tips, White Papers, & Presentations: |
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Roofing Filters, Transmitted BW & Receiver PerformnceDayton Contest University 2008 Slide Show with Audio (wmv) Slide Show only (ppt or pdf) - Audio only (mp3) Click to view or listen or to save, right click & Save Target/Link |
Roofing Filters, Transmitted IMD & Receiver PerformanceBoulder Colorado Amateur Radio Club (BARC) - February 2008 PowerPoint (ppt) - Acrobat (pdf) - Audio (mp3) Click to view or listen or to save, right click & Save Target/Link |
DSP Radios - Not PerfectDayton Drake Forum 2007 PowerPoint (ppt) - Acrobat (pdf) : Slide #8 click on speaker to hear sound clip Radios Used in a Contest EnvironmentHamvention 2004 |
Other Tips & White Papers:
* Article posted with permission from ham radio magazine |
Receiver Test Data (Updated 25 August 2011) |
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SE-3 MK IV is Now Shipping $695.00 |
SE-3 MK IV NEW |
Drake R-4C |
Synchronous DetectorListen to the effectivenessInterfacing a shortwave radio to SE-3 |
R4-C Kits & AccessoriesFirst-IF roofing filtersDrake R-4C filters |
Cooling Kits |
Catalogues |
R9000Icom IC781 |
Amateur RadioShort Wave Listener |
Filters |
Other Products |
Drake, Racal, JRC, Icom, & AtlasCollins 455 kHz mechanical & crystalDSP protection filter replacementIC-765 distributed roofing filter NEWFirst-IF roofing filters |
SE-6 Switch BoxJapan Radios NRD modelsIcom R9000 | R8500 |
Links & Shipping |
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SEI Favorite Links |
Shipping Information |
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Updated 15 February 2009 T Cantrell, webmaster |