Version 5.0 of the CT1FFU Upconverter Now Available
Version 5 of the popular CT1FFU HF upconverter which is often used with the RTL-SDR and Funcube software defined radios has been made available for sale. A ready built and tested version 5 CT1FFU upconverter will cost you 55 Euros. See the circuit diagram and technical specs in this pdf file.
The upgrades include
– Smaller size PCB
– 4 new holes for screwing PCB
– MiniUSB connector
– 2 led 5V indication USB/ Phantom Power
– It runs with phantom power directly from Fun Cube Dongle’s SMA cable
– USB power for generic RTL TV dongle sticks
– Separeted antenna inputs HF/6m and VHF/UHF
– Automatic internal relay antenna switch: HF or Bypass VHF and UP
– WFM broadcast filter avoiding saturation of SDR front-end
– LED indication for converter running
– DBM diode ring mixer 7 dBm: This ensures exellent HF reception performance
– LO on 106.250 Mhz or 65.520Mhz: This avoids interference from WFM radios
– Tests made by hams worldwide reveal exceptional clean reception on HF
– Technical assistance after selling
– Either ready built and tested or as KIT easy to build by yourself
– Worldwide shipping and tracking is included in advertised price
– You can now choose the LO freq: 106.250Mhz or 65.520Mhz models
Got v4 2 weeks ago…still trying to understand why i cannot get any signal on hf… 🙁
Connected a 20mt rg58 wire…still nothing… 🙁
If i knew of this v5 i would not get v4…
Why are all these upconverters so expensive relative to the rtlsdr itself?
I guess it’s volume. The RTL-SDR is a Chinese mass produced product meant for DVB-T TV watching. These upconverters are made in much smaller quantities.