| Parameters | Symbol | Value | Units | Conditions |
|---|---|---|---|---|
| Freq. domain | Fo | 100 ÷ 7100 | KHz | |
| HF band | B | 80/40 | m | |
| Modulation type (Rx) | M | DSB/SSB (A3E/J3E), CW (A1A/A2A) | - | |
| Sensitivity | S | 0.22 | uV | (-120dBm) |
| Dynamic range | D | -12 | dBm | 160mVp-p |
| IP3 | IP3 | 23 | dBm | |
| Max. antenna level | Smax. | +20 | dBm | |
| Display resolution | Res. | 10 | Hz | |
| Freq. steps | Fstep | 0.01/0.1/100 | KHz | |
| Filter BW | Fbw | 300-2500 | Hz | SSB/CW |
| Display type | LCD | 16X2 | CH | |
| Audio level | PAF | 730 | mW | |
| Supply voltage range | Vcc | 9-15 | Vdc | |
| Current consumption | Rx cur. | 50 200 | mA mA | normal vol. level max. vol. level |
| Tune mode | - | DDS | ... | with encoder |
| Headphones connector | - | 3.5mm | female connector | |
| Audio level | - | with potențiometer | - | - |
| Antenna connector | BNC | - | BNC |
Jelke van der Meer PA0MHZ (verified owner) –
I am quite a fan of NVIS antennas. These are antennas that are hung quite low above the ground. The results of this are highly dependent on the soil type and the altitude. NVIS antennas work particularly well on the 80 and 40 meter amateur bands.
Due to the low height you will hardly be bothered by noise and therefore many stations can be received that you normally do not hear because of the noise level. For reception experiments I bought this receiver and I am very satisfied with it. I still have to use an adapter but will soon be installing a battery holder so that I can use it with battery power.
My copy is in ssb 14 hertz above the reception frequency on the display and I think that’s pretty good for this type of receiver. Of course, such a receiver is also perfectly suitable to take with you on holiday. With a short piece of wire there is still a lot to listen to.
Josef Hermann (verified owner) –
Ich wollte neulich einen Juma RX bestellen, da bin ich auf die Homepage von roWaves gestoßen. Dies ist eine kleine Firma in Rumänien die diese Bausätze von der Firma Juma vertreibt. Der Juma Empfänger hat ein besseres Gehäuse bekommen und die Verarbeitung ist sehr gut. Der Empfänger spielt auf 80m und 40m sehr gut. Diesen kleinen Empfänger kann man in Urlaub mitnehmen und Amateurfunk empfangen und auch AM Stationen. Der Preis ist akzeptabel man bekommt einen fertigen aufgebauten Empfänger, der in SMD Bauteile aufgebaut ist. Und das Beste ist noch der Empfänger hat einen DDS und keinen Analogen VFO der driftet. Ich wünsche euch noch alles Gute.
73 Josef
John McClun –
Bought this RX-1 receiver as a receiver for when not in the shack. Tuned wire antenna and this little rig receives everything I want to hear.