This cable is typically used to wire connections for an external amplifier. I don't have an external amplifier but I wanted to make use of the +12v power and transmit relay for the protection relay I built for my SDR-Play a few years ago. I had also read that the TX REQ IN pin co...
Something that all radio amateurs encounter sooner or later is the subject of impedance matching. If you’d like to make sure all that power is transferred from your transmitter into the antenna and not reflected back into your power amplifier, there’s a need for the impedance of the one ...
The QRPGuys Active 600Hz Audio Filter is a fixed 600Hz bandpass filter with a narrow bandwidth for cw reception. It uses a TL072 JFET op amp IC and LM386 amplifier IC. It is used with a receiver to improve signal readability in crowded band conditions that can be very helpful in receiv...
It uses the popular Analog Devices AD8307 logarithmic detector/amplifier, used in many popular VNA’s, coupled with an on-board digital voltmeter that has been modified to compare small signal changes of about 0.7dB, and display a relative digital reading. We also see use of this device as ...
Class E power amplifier, transistors run cool… 7-element Low Pass Filter ensures regulatory compliance CW envelope shaping to remove key clicks High performance receiver with at least 50dB of unwanted sideband cancellation 200Hz CW filter with no ringing ...
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operating options of the Pocket. Due to the larger housing (heat dissipation) and a slightly higher possible current consumption (no batteries as power supply), improvements in the IM behavior (more powerful preamplifiers and AD converters) could be achieved. Other differences to the Pocket ...
Xiegu G106C Portable SDR Shortwave Radio 5W HF Transceiver QRP WFM Radio FT8 Price:$230.68 XIEGU G106 SDR HF Transceiver SSB CW AM WFM Broadcast Mobile Radio Price:$344 XPA125B 100W HF Power Amplifier Auto tuner ATU For X5105 X108G G1M G90 Price:$658 Xiegu GZF-1 Cooling Bracket for...
TZT 10M-6GHz Low Noise Amplifier Gain 30DB High Flatness LNA Amp RF Signal Driving Receiver Front EndCNY 150.00/piece TZT HAMGEEK ATS25 Pro+ FM SW SSB MW LW AIR SDR Receiver Aviation Band Receiver Supports Bluetooth WifiCNY 700.00/piece ...
On the transmitter side, the SSB signal is generated by making slight frequency changes to a Si5351 clock generator using 800kbit/s I2C, and controlling a very efficient class-E RF power amplifier with PWM for about 5W of output power. The increased efficiency means that there is no need ...