![]() You can control any stage of IF amplification by means of its software control so in the end you can tailor sensitivity and tackle the issue of fron-end overload. Still if there is a station within the band strong as much as S9-50db you still might have some problems. Using pass band filters the receiver is very good. However, the front-end overloads easily, so the first thing to do is to put some physical front-end filtering in case you need. So much that I am now neglecting HF!Įarlier 5-star review posted by KD7RDZI2 on You only need a souncard to listen to it. Image rejection does not depend on your soundcard. Image rejection with these two software is excellent. It works very well with HDSDR but I more often use SDR Console by. You can control any stage of IF amplification by means of its software control so in the end you can tailor sensitivity and tackle the issue of frontend overload. In fact it costs as much as a gem! 99 pounds plus shipping for a receiver that weights just few grams. KD7RDZI2 Rating: 5/5 09:37 Send this review to a friend Overall, yes, the old Funcube Pro need external bandpass filters but may work quite well and you would not need to change your computer to get it work. RTL sticks and other SDRs with high sampling rates need much more powerful CPU to have a nice graph. Quisk, the 96Khz sample rate and Linux do draw little resources even in a 10years old laptop. GQRX does the job but I prefer to use QUISK and QTHID to tune and set the gain values in the Funcube. The last but not the least, although SDRSharp is an excellent Windows software I use linux. Aluminum foil would be more than enough I think. I did not notice noise issues but you can put it inside a metal enclosure and ground it. Someone complain about the plastic enclosure. Sensitivity and noise floor figures must be very good. Du-Tri-plexers may be used as front-end filters too. For VHF-UHF I use cheap helical bandpass filters and a preamplifier closer to the antennas and low gain settings in the Funcube. Setting LNA gain to 0db and 4db Mixer gain gives best results for HF. To drastically improve HF performance I use a "HF BPF- bandpass filter with RF amp + ATT" which is optimized for ham bands and the preamplifier provides about 15db of gain overcoming the loss of the converter. To extend HF reception I have added the original Hamitup converter by Nooelec which has I think an IP3 close to 15dbm and 10db loss insertion. It does overload easily but using external band pass filters this issue can be eliminated. Compared to cheap RTL dongles the Funcube Pro does have a 16bit ADC and a 96kHz sample rate which in my case is desirable compared to 2Mhz and 8bit ADC of RTL dongles. The Funcube Pro (not the Pro+) is an all-mode wide-band 64-1700Mhz receiver with poor front-end filters. Adding Band Pass Filters and HF converter
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