![]() ![]() What you can do is fit Drake transmit LSB and USB filters Skirts just ever so slightly improves the receiver on SSB,Īnd really not anything that you would ever notice on CW. That 8kHz filter with another 6 or 8kHz filter with better Within that 8kHzīandwidth, two or more modest level signals will easily mixĪnd generate a new signal that really isn't there. You canĬonsider the effective BW of the receiver the width of the The problem is the horrible 2nd mixer in the R4C. IMO the GUF1 is not worth bothering with. The GUF1 won't help the R4C a bit for CW. Radio, but we also want todays performance standards. Sorry, I know we all want to relive our early years in ham The shelf as a collectors piece, but I would not consider it competitiveĬlass as is. R4b which are now relegated to back up status. More than $600 to upgrade a stock r4c for parts alone. The filters and mods than I did in the rx itself. I had an R4C since new and sold it a year or so ago. One other nit, and that is tuning rate is super fast and it Roofing filters, I suspect you will be very disappointed in its top band (still available from International radio) and certain other mods dependant The r4c is a terrific receiver IF it has the sherwood 600 hz roofingįilter(still available from Bob Sherwood I think), and/or the GUF-1 filter ![]()
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