I2C controlled HF Tx router
- 50 MHz Nyq filter
- Tx preamplifier
- preamplifier BIAS on/off by i2c
- direct signal routing on/off by i2c
- fixed value ATT on preamplifier in/out
- DC blocking and ESD protection at input
RF & DSP & Mixed Signals
I2C controlled HF Tx router
- 50 MHz Nyq filter
- Tx preamplifier
- preamplifier BIAS on/off by i2c
- direct signal routing on/off by i2c
- fixed value ATT on preamplifier in/out
- DC blocking and ESD protection at input
I2C controlled HF RF router
Contains DC blocking, ESD protection, overvoltage protection, step-ATT, HPF, NYQ filter, 20 dB preamplifier and RF-ports for external modules.
The front panel and PCB for XtremeDx H7113R SDR
Front panel and PCB assembly
HF PA100 F101 2V0
HF power amplifier 3.5...30 MHz , 110W..130W PEP
- with 1W driver section
- low input power
- 30 dBc IM3
Two element critical coupled delta-loop antenna for 20m band.
The distance between elements is 3m. One element is radiator the another is the reflector. The radiation direction can be changed using relay.
The F/B ratio is 26..30 dB. The SWR is 1.2- 1.4.