JUMA TRX2A SSB-CW transceiver
JUMA TRX2A is a high dynamic range transceiver for SSB and CW, using the quadrature sampling technique for demodulation and modulation with the low noise phasing method. JUMA TRX2A includes a DDS controlled VFO for a good frequency stability and signal purity. An internal microcontroller is controlling all functions of the transceiver.
JUMA TRX2A is available as a discrete kit with components and bare circuit boards. The enclosure is machined and printed. Only few coils need to be wound when constructing JUMA TRX2A. A completely assembled transceiver and other building help is also available with the help of the JUMA community.
Alternate display pages
The rear panel
See more photos here
All ham bands 160m-10m including WARC bands, RX 100-30 MHz
Transmit modes LSB, USB, CW and TUNE
Output RF power 10 W
RF output, SWR, voltage and PA current displays in LCD
Built in keyer: Dot priority, Iambic A, Iambic B and straight modes
Good clickless CW keying with adaptive release time
Three filters: Wide, Medium and Narrow with a good shape factor
The filters are user adjustable, see the diagram here.
Outstanding dynamic range and good sensitivity
Excellent AGC with slow and fast modes
First-class optical VFO encoder with 480 steps per revolution
7 digit frequency display with 10Hz display resolution
Three selectable VFO tuning speeds Slow/Fast/Very Fast
VFO lock feature
RIT and XIT (long push) with own tuning knob
Graphical S-meter range S1...S9+40 dBm
Non volatile memory for VFOs, modes, settings and calibration
Close-up view of the connectors