#ALL BAND RECEIVER RADIO CIRCUIT PDF#
The frequency range is certainly adequate and Silicon Labs chips are a quality product, but as we know the Si4732 is only as good as its implementation ( click here to read the PDF data sheet). In other words, I’m a bit skeptical this receiver will be a proper performer. I’m less interested in radios that are cheaply made and lack the sensitivity, selectivity, noise floor, and features an SWL would desire.
#ALL BAND RECEIVER RADIO CIRCUIT FREE#
If I’m being honest, even though the price is a no-brainer, I’ve been hesitant to buy it simply because, due to my limited free time, I really do seek enthusiast-grade receivers for review these days. The radio does have a BFO for tuning SSB and CW signals. If 4 kHz is the widest AM bandwidth, that is a bit unfortunate. It appears the bandwidth selections are 0.5, 1.0, 1.2, 2.2, 3, and 4 kHz. The radio is based on the Silicon Labs Si4732 DSP chip which provides the following frequency coverage: 230000005540 biological transmission Effects 0.I’ve received a number of inquiries from SWLing Post readers lately regarding an inexpensive Si4732-based mini stand-alone receiver being sold on Amazon and eBay for around $56-66 US shipped.238000003199 nucleic acid amplification method Methods 0.000 claims 4.239000000203 mixture Substances 0.000 claims description 6.230000005236 sound signal Effects 0.000 claims description 7.230000000694 effects Effects 0.000 claims abstract description 7.230000000051 modifying Effects 0.000 claims abstract description 48.Assignors: MASCO CORPORATION OF INDIANA Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links OF IN reassignment UNIDEN CORPORATION OF AMERICA, 6345 CASTLEWAY COURT, INDIANAPOLIS, INDIANA 46250 A CORP. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US3459379A priority Critical Application filed by Masco Corp filed Critical Masco Corp Priority to US06/290,924 priority patent/US4398304A/en Application granted granted Critical Publication of US4398304A publication Critical patent/US4398304A/en Assigned to UNIDEN CORPORATION OF AMERICA, 6345 CASTLEWAY COURT, INDIANAPOLIS, INDIANA 46250 A CORP. Original Assignee Masco Corp Priority date (The priority date is an assumption and is not a legal conclusion. UNIDEN Corp OF AMERICA 6345 CASTLEWAY COURT INDIANAPOLIS INDIANA 46250 A CORP OF Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Fathauer Wayne Holst Current Assignee (The listed assignees may be inaccurate.
Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US06/290,924 Inventor George H. Google Patents Scanning radio receiver including detector circuit for AM and FM receptionĭownload PDF Info Publication number US4398304A US4398304A US06/290,924 US29092481A US4398304A US 4398304 A US4398304 A US 4398304A US 29092481 A US29092481 A US 29092481A US 4398304 A US4398304 A US 4398304A Authority US United States Prior art keywords frequency signal circuit terminal output Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US4398304A - Scanning radio receiver including detector circuit for AM and FM reception US4398304A - Scanning radio receiver including detector circuit for AM and FM reception
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