QHR Kits: A QRP kit maker in Spain

Many thanks to Dan Sloss (VK2NAD / KJ7AKC) who writes:

G’day,
Thank you for the work on your website. I happened across another QRP kit maker and thought you might want to share the link:
https://www.qrphamradiokits.com/
All the best,

Thanks for sharing the tip, Dan!

One thought on “QHR Kits: A QRP kit maker in Spain”

Javier has now the DB4020 an SSb transceiver for both 40 and 20mtrs. The kit does have the possibility to add a small board to be able to do CW in a later stage. Also a CW filter is an option in a later stage.

Some details :

Frequency coverage: 7.0 – 7.2 MHz on 40m ; 14.0 – 14.35 MHz on 20m.
Note: You can tune a few hundred kHz below and above the bands, but downgrading the characteristics (SW broadcasting can be heard).
Tuning steps on two ranges: 10Hz-100Hz-1kHz and 10kHz-100kHz-1MHz.
Modes: LSB on 40m, USB on 20m (CW optional).
RIT function: without frequency limit
Power requirements: 12 – 14VDC 1-2A transmit, 0.2 – 0.4A receive.
Antenna impedance: 50 ohms.
Controls: Tuning-pushbutton. Volume. RF attenuator.
Board dimensions: 180 x 140 mm.
Weight: (no enclosure): 0.3 kg.

TRANSMITTER:
Emissión: LSB/USB (CW optional).
RF output: 8 W on 40m, 4W on 20m (13.8V).
2nd harmonic output: -45dB below the fundamental frequency.
Other spurious signals: -50dB or better below the fundamental frequency.
Carrier suppression: better than -40dB.
T/R switching: Relays.
Microphone type: Electret condenser (capsule included).

RECEIVER:
Type: Superheterodyne. Balanced mixers.
Sensitivity: 0.2uV minimum discernible signal.
Selectivity: 4-pole crystal ladder filter, 2.4KHz nominal bandwidth (optional narrow CW Filter).
IF frequency: 4.915MHz.
AGC: on the receive path according to the received audio.
Audio output: 250mW, 4-8 ohms.