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Duplicate models appear once. Missing data means ‘not documented’, not ‘not supported’. Power, weight and runtime figures apply only under their stated conditions.

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Documented model specifications
FeatureAlbrecht AE125H ↗RemoveSDRplay RSP1B ↗Remove
Model
PurposeAnalog handheld scanner with 500 memories, Close Call and 8.33 kHz airband spacing.USB SDR receiver covering 1 kHz to 2 GHz for spectrum viewing and signal processing on a computer.
Frequency ranges

Receive ranges
25–88 / 108–137 / 137–174 / 225–400 / 400–512 / 806–960 MHz

Frequency range
1 kHz–2 GHz

ModesNot documented — see detail page.Not documented — see detail page.
Transmit powerNot documented — see detail page.Not documented — see detail page.
Connections

Antenna / audio
BNC / 3.5 mm earphone socket

USB
Mini-USB

Antenna
SMA, 50 Ω

USB / current draw
USB 2.0 Type B; 185 mA excluding bias-T load

Power supply

Power
2 × AA; documented package includes 2 × 2300 mAh NiMH

USB / current draw
USB 2.0 Type B; 185 mA excluding bias-T load

Dimensions and weight

Dimensions, W × H × D
67 × 115 × 33 mm

Weight
205 g without batteries

Enclosure
Steel; 98 × 94 × 35 mm; 315 g

Protection and operating conditions

Operating temperature
−20 to +60 °C; Close Call −10 to +50 °C

Not documented — see detail page.
Highlights
  • Seven service searches: emergency, Freenet, PMR, marine, airband, CB and amateur radio.
  • Ten priority channels and named memories.
  • Close Call detects nearby transmitters.
  • 100 permanent and 100 temporary search lockouts.
  • Continuous reception from longwave to 2 GHz.
  • Switched low-pass, band-pass and high-pass preselection filters.
  • Separate rejection filters for mediumwave, FM broadcast and DAB.
  • Software-controlled bias-T supply at the antenna input.
Variants and sources

Service-search names describe the manufacturer’s factory presets. The AE125H does not decode digital voice formats such as DMR or D-STAR.

Full product dossier →		Full product dossier →

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.

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Albrecht AE125H →SDRplay RSP1B →