1. Can be used to test signals receiving from VHF/UHF band
2. The receiving signal strength which received from VHF/UHF is not the best. It can be used to receive the nearby signals (eg. FM broadcasting radio or other Hand-held radios). To achieve the best effect, you need to connect associated antennas Cannot be used to receive HF signal band
3. To achieve the best effect, you need to connect associated HF antennas such as Long Wire , Random Wire, Dipole etc.
Functions:
Fully assembled and ready to use
Uses RTL2832U+R820T chip set
100KHz to 1766MHz, operating frequency
Covers all HF amateur bands
Covers VHF & UHF bands from 24-1766MHz
Up to 3.2 M Sample rate. (~2.8 MHz stable)
Receiver modes AM, NFM, FM, DSB, USB, LSB and CW
Note: depends upon the SDR software used with the receiver
8-bit ADC giving ~50 dB dynamic range
50 Ohm input impedance
Double SMA golden antenna connectors
Diode protection on RF input
Aluminum panels
LED power and band indication
40MHz local oscillator for HF conversion
DBM balance ring mixer
Small size board
Free software
Independent antenna inputs for Shortwave and VHF
USB computer connection ( mini usb) Powered by common USB
Very High dynamic range receiver
SPDT High Power UltraCMOS RF Switch
Accurate and efficient band filters
Very clean audio reception
All specifications subject to change without notice
Female SMA for both input and output for a wide array of connectivity options
In-line SMA connectors. Much easier to connect and manipulate than side-by-side SMA connectors
Antenna protection on RF input; in-circuit in both enable and passthrough mode
Solely high-quality components used in the RF signal path
Powered by common USB-B USB for a multitude of power options
RF-suitable power supply regulation (TPS79333)
PTC fuse on USB power input to protect your upconverter from short circuits
Upconverter enable/passthrough toggle switch--less fiddling with small, delicate cables and connectors
Socketed oscillator for a simple upgrade path
Stable 25ppm oscillator included
LO disabled in passthrough mode
High-quality 2-layer PCB with ENIG finish
Fully assembled and ready to use
Designed to fit standard off-the-shelf Hammond enclosures
2 mounting holes for standard PC screws
Designed and manufacturered in conjunction with Opendous Inc., an excellent open-hardware design company
Full project documentation--schematics, PCB design files, assembly information--is freely available (see link above). DIY'ers rejoice! We will have a limited number of bare PCBs available for those who want to 'roll their own'
A portion of the proceeds from your purchase will be used to support this and other open-hardware, open-source initiatives
Operation:
Before operating your unit for the first time, and every time you run with a new SDR, we recommend running the tuning procedure located here. It is not a mandatory procedure but may help fine-tune your, erm. tuning. Pop the included oscillator into its socket and you are ready to go!
Operating the unit is very simple:
Connect your antenna to the RF input
Connect your SDR to the IF output
Ensure your toggle switch is in the enable position
Plug your USB power source into the USB-B USB jack
Fire up your favorite SDR software. Tune to 125MHz (+/- the tuning offset from the tuning procedure) + your desired frequency and enjoy!
