Compact portable QRP SDR transceiver for the HF bands, designed by PrTrx (csqwdy) and sold assembled by HamGeek as the HamGeek PT1. Parts of the hardware and software design derive from VK7IAN's open-source MBPTRX, used under VK7IAN's permission. The hardware is open source; the firmware is closed source and needs a free registration code for self-built units.
Output power: 5 W is the standard rating; the designer advises not to exceed 5 W in FT8 without extra cooling, while 10 W is fine for normal QSOs. IMD3 better than -35 dBc at 10 W PEP (measured -38 dBc).
Operating modes: LSB, USB, CWL, CWU, DGL, DGU, AM, NFM
Sideband suppression: better than -50 dBc; carrier suppression: better than -50 dBc
Spurious emissions: better than -50 dBc (2nd and 3rd harmonics)
Antenna impedance: 50 ohm; microphone impedance: 2 kohm
Operating temperature: 0 to +50 °C
SWR cannot be measured accurately below about 2 W.
General characteristics
- Type
- Transceiver
- HAM bands
- 80m 40m 30m (WARC) 20m 17m (WARC) 15m 12m (WARC) 10m
- Frequency stability
- ±1 ppm (after 30 min warm-up)
- Tuning steps
- 10 / 100 Hz, 1 / 10 / 100 kHz
- Memories
- ?
Receiver
- RX-range
- 3.5-30 MHz
- Modulations
- AM N-FM CW USB LSB
- Sensitivity
- SSB/CW: <0.20 µV (-121 dBm) at 2.4 kHz / 500 Hz BW
AM: <0.4 µV (-115 dBm) at 6 kHz BW
NFM: <0.4 µV (-115 dBm)
MDS: <0.035 µV (-136 dBm) at 500 Hz CW BW - Selectivity
- SSB: 2 / 2.2 / 2.4 / 2.6 / 2.8 kHz
CW: 50 / 100 / 200 / 300 / 500 Hz
AM: 6 / 10 kHz
FM: 11 kHz - Filters
- ?
- Receiver system
- ?
- IF-frequencies
- ?
- Image rejection
- ?
- Audio output
- 1 W at 8 ohm, 2 W at 4 ohm (≤10% THD)
Transmitter
- TX-range
- 3.5-3.9 MHz
7-7.2 MHz
10.1-10.15 MHz
14-14.35 MHz
18.068-18.168 MHz
21-21.45 MHz
24.89-24.99 MHz
28-29.7 MHz - Modulations
- AM N-FM CW USB LSB
- RF-output
- 0.1-5 W ±1 dB, continuously adjustable
Up to 10 W ±1 dB with enhanced cooling
Connections
- Antenna
- -
- Impedance
- ?
- Other
- -
Electrical
- Power requirements
- 11-15 V DC (13.8 V typical) RX: ≤280 mA at minimum volume TX: ≤2.5 A at 10 W
- Current drain RX
- ?
- TX
- ?
Physical
- Dimensions (w×h×d)
- 116 × 87 × 48 mm (4.57 × 3.43 × 1.89 in) L x W x H as published, excluding protrusions
- Weight
- 380 gr (13.4 oz) Main unit only (approx.)
- Form factor
- Portable
- Manufactured
- Between 2026 and 20xx
Other features
- Usage
- Amateur / Ham radio operators
- Features + options
- Portable QRP HF SDR transceiver, QSD/QSE zero-IF architecture
Raspberry Pi Pico 2 (RP2350) controller, 24-bit codec
2.0" 320x240 colour IPS display
28 kHz spectrum and waterfall
TX on all ham bands 3.5-29.7 MHz, general coverage RX 3.5-30 MHz
SSB, CW, AM, NFM and data modes
JNR digital noise reduction, noise blanker, notch
0.1-5 W, up to 10 W with extra cooling
Computer connectivity and control
Open-source hardware - Accessories
- Supplied: handheld microphone, power cable, user manual
- RigReference ID
- 6858
- MPN
- PRTRX-PT000001
Manuals, diagrams and brochures
-
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Based on similar Transceiver equipment, the estimated value of the PrTrx PT1 is around:
- USD 197 ~ USD 365
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Links & tools
- Search YouTube for PrTrx PT1 videos
- Search Google for PrTrx PT1 information
- Search Google Images for PrTrx PT1
- Search Wikipedia for PrTrx PT1 information
- Search the Boat Anchor Manual Archive (BAMA) for PrTrx PT1 for manuals and documents (using Google)
- Search eHam for PrTrx PT1 reviews (using Google)
- Search mods.dk for PrTrx PT1 mods and repairs
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