HB3YAQLucerne
Compare equipment.
Choose two or three models from my collection. Compare their purpose and documented features side by side.
Duplicate models appear once. Missing data means ‘not documented’, not ‘not supported’. Power, weight and runtime figures apply only under their stated conditions.
Scroll the table sideways and down. Model names and feature labels stay visible.
| Feature | Noname Simplex MMDVM Pi-Star Hotspot ↗Remove | Nooelec NESDR SMArt v5 ↗Remove |
|---|---|---|
| Model | ||
| Purpose | Simplex hotspot using MMDVM and Pi-Star in a black metal enclosure. | USB SDR covering 100 kHz–1750 MHz: Q-branch direct sampling for HF, a TCXO and an SMA antenna input. |
| Frequency ranges | Not documented — see detail page. | Receive range |
| Modes | Not documented — see detail page. | Modes |
| Transmit power | Not documented — see detail page. | Not documented — see detail page. |
| Connections | Not documented — see detail page. | Antenna connector Computer connection |
| Power supply | Not documented — see detail page. | Power supply |
| Dimensions and weight | Enclosure | Dimensions, W × H × D Weight Enclosure |
| Protection and operating conditions | Not documented — see detail page. | Not documented — see detail page. |
| Highlights |
|
|
| Variants and sources | The manufacturer and exact board revision of this unbranded assembly are unidentified. Processor, RF output, frequency coverage and power-supply specifications from other boards are therefore not attributed to this unit. Full product dossier → | The owner confirmed the v5 version. According to Nooelec, a v5 marking underneath distinguishes it from older generations. The datasheet’s electrical table places the direct-sampling/tuner crossover at 25 MHz. Its simplified block diagram uses inconsistent labels; the table values are used here. The specific tuner chip in this individual receiver has not been separately verified. Maximum bandwidth is a manufacturer specification. The practical sample rate also depends on the computer and USB connection. An antenna bundle or upconverter is not assumed to be owned.
|
How to interpret the differences
BandwidthBandwidth is the width of a frequency range. A receiver filter limits the analysed range; the signal’s occupied bandwidth is a separate quantity.Example & full explanation →SDRIn a Software Defined Radio, software performs key signal-processing tasks such as filtering and demodulation. The analogue front end and converter still determine which signals can be processed.Example & full explanation →DMRDigital Mobile Radio is a family of digital radio standards. Amateur radio commonly uses DMR Tier II; channel configuration includes frequency, colour code, time slot and call destination.Example & full explanation →SimplexIn typical simplex voice operation, stations take turns transmitting and receiving on the same frequency. Only one station can speak intelligibly at a time.Example & full explanation →RepeaterA repeater receives signals and retransmits them. Many voice repeaters use different input and output frequencies; other stations are heard on the repeater output.Example & full explanation →
A wideband receiver and a handheld transceiver serve different purposes. A wider receive range does not automatically mean better sensitivity. Sensitivity depends on mode, measurement bandwidth and criterion, so this comparison does not create an overall ranking.
First check your required mode, then suitable antenna and accessory connections, and finally the power supply. A device’s transmit capability does not establish your personal permission to transmit.
From comparison to equipment
Open the full dossier. Its jump links take you straight to available guides and assigned accessories.