# Agilent 53148A 26.5 GHz Counter/Power Meter/DVM (Pre-Owned) # Agilent 53148A 26.5 GHz Counter/Power Meter/DVM (Pre-Owned) ## Key Features At A Glance - Three instruments in one portable package: CW microwave counter, true power meter, and DC DVM - Frequency counter ranges available up to 20 GHz, 26.5 GHz, or 46 GHz depending on model - True power meter with 0.02 dB basic instrument accuracy and 0.01 dB resolution in log mode - DC DVM with ±50 Vdc range, 2 mV resolution, and ±0.25% of reading accuracy for AGC and telecom power supply measurements - Compatible with Agilent 8480 series power sensors covering -70 dBm to +44 dBm - GPIB (IEEE-488) and RS-232 SCPI programmable interfaces standard for ATE integration - Backlit LCD display with switchable backlight; selectable resolution from 1 Hz to 1 MHz - Optional oven timebase, battery operation with DC input, and soft carrying case for field portability The Agilent 53140 Series combines a CW microwave counter, a true power meter, and a DC digital voltmeter into a single portable instrument. The series is offered in three models that differ by the upper frequency range of the microwave counter channel: the 53147A covers up to 20 GHz, the 53148A up to 26.5 GHz, and the 53149A up to 46 GHz. Each unit pairs the counter capability with a true power meter section compatible with the Agilent 8480 series of power sensors and a ±50 Vdc voltmeter section, all housed in a rugged chassis with rubber bumpers and a backlit LCD display. According to the datasheet, the 53140 Series is positioned for the installation and maintenance of point-to-point microwave links — including cell-site to base-station links, business-to-business communication links, digital radio links along railroads, pipelines, or power lines, and satellite ground stations. The same instrument is also positioned for microwave component and assembly testing in automated test environments, where the three-in-one form factor reduces the rack space and capital required to assemble an equivalent measurement bench from separate counters, power meters, and voltmeters. ValueTronics International has been supplying new and pre-owned test and measurement equipment to engineering, telecom, and field-service customers since 1992, and all inventory is stored, inspected, and tested in our own 20,000 square foot secure warehouse at 1675 Cambridge Drive, Elgin, Illinois. Rather than drop-shipping from third-party brokers, we evaluate each unit in-house against the manufacturer's published specifications, document its condition, and ship from our own stock — so the 53140 Series you receive has been verified by our technicians before it leaves the building. ## Brand Heritage The Agilent 53140 Series carries Hewlett-Packard test and measurement lineage. Hewlett-Packard spun off its test and measurement business as Agilent Technologies in 1999, and Agilent's electronic measurement division was subsequently established as Keysight Technologies in 2014. Instruments originally produced under the Agilent name during this era are part of the same engineering and product-support continuum that now operates under Keysight. ## Compare Other Models in This Series The 53140 Series is a three-model family that shares a common instrument architecture — CW microwave counter plus true power meter plus DC DVM in one chassis — and differs primarily in the upper frequency limit of the Channel 2 microwave counter input. All three models share the same Channel 1 range (10 Hz to 125 MHz), the same power meter section, the same DVM section, the same display, and the same programmable interfaces, so the comparison between them is fundamentally about how high in frequency the counter section needs to measure. Because the rest of the instrument is common across the family, customers selecting between the 53147A, 53148A, and 53149A are essentially selecting a frequency ceiling — and accepting the corresponding differences in sensitivity at the upper end of each model's range and in the SWR profile of the Channel 2 input. The datasheet specifications support a side-by-side comparison on these axes. Each pre-owned 53140 Series model below is listed on its own dedicated product page with condition-matched pricing and availability. Select the model that matches the frequency ceiling and connector configuration required by your application, then review that page for the current configuration we have on hand. The 53147A is the 20 GHz model. Channel 2 sensitivity is specified at -33 dBm from 0.3 to 18 GHz and -29 dBm from 18 to 20 GHz, with a Channel 2 connector listed as SMA/APC-3.5 compatible female. The 53148A extends the upper range to 26.5 GHz, adding a -25 dBm sensitivity specification from 20 to 26.5 GHz while maintaining the same connector type. The 53149A extends the range further to 46 GHz, uses a 2.92 mm removable (SMA/APC-3.5 compatible) female connector on Channel 2, and specifies sensitivity of -23 dBm from 26.5 to 40 GHz and -17 dBm from 40 to 46 GHz. Residual stability and acquisition time also vary across the family: residual stability on Channel 2 is specified at 0.6 LSD rms for the 53147A, 0.8 LSD rms for the 53148A, and 1.25 LSD rms for the 53149A. SWR above 20 GHz is specified at 3.0:1 for the 53148A through 26.5 GHz and 2.5:1 for the 53149A from 20 GHz through 46 GHz. The comparison table that follows lists the differing specifications side by side so the correct model can be matched to the application frequency. Model Channel 2 Frequency Range Channel 1 Frequency Range Resolution **53148A** 50 MHz to 26.5 GHz 10 Hz to 125 MHz 1 Hz to 1 MHz 53147A 50 MHz to 20 GHz 10 Hz to 125 MHz 1 Hz to 1 MHz 53149A 50 MHz to 46 GHz 10 Hz to 125 MHz 1 Hz to 1 MHz Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Power sensor cable (11730A) - DVM test leads (34132B) - Operating/programming and service manuals - AC power cord ## Product Core & Specifications Specification 53148A Counter Specifications Channel 1 Frequency Range (Normal) 10 Hz to 125 MHz Channel 1 Frequency Range (Low pass filter enabled) 10 Hz to 50 kHz Channel 2 Frequency Range 50 MHz to 26.5 GHz Channel 1 Sensitivity (10–30 Hz) 40 mVrms Channel 1 Sensitivity (30 Hz–125 MHz) 25 mVrms Channel 2 Sensitivity (50–300 MHz) \-20 dBm Channel 2 Sensitivity (0.3–12.4 GHz) \-33 dBm Channel 2 Sensitivity (12.4–18 GHz) \-33 dBm Channel 2 Sensitivity (18–20 GHz) \-29 dBm Channel 2 Sensitivity (20–26.5 GHz) \-25 dBm Channel 1 Maximum Input 2 Vrms Channel 2 Maximum Input (50 MHz to 2 GHz) +5 dBm Channel 2 Maximum Input (2–46 GHz) +13 dBm Channel 1 Damage Level 120 V (dc + ac pk) linearly derated to 5 Vrms at 125 MHz Channel 2 Damage Level +27 dBm Channel 1 Impedance (nominal) 1 MΩ/60 pF Channel 2 Impedance (nominal) 50 Ω Channel 1 Connector BNC female Channel 2 Connector SMA/APC-3.5 compatible female Channel 2 SWR (50–300 MHz, typical) 1.5:1 Channel 2 SWR (0.3–10 GHz, typical) 2.0:1 Channel 2 SWR (10–20 GHz, typical) 3.0:1 Channel 2 SWR (20–26.5 GHz, typical) 3.0:1 Coupling (Ch 1 / Ch 2) ac / ac Channel 2 Emissions (typical, measuring/no input) \-40 dBm/<-70 dBm Resolution Selection (Ch 1 and 2) 1 Hz to 1 MHz Accuracy ±1 LSD ±residual stability ± (timebase error × frequency) Channel 2 Residual Stability 0.8 LSD rms Channel 1 Measurement Time (typical) 1/Resolution + 30 ms Channel 2 Measurement Time (typical) 1/Resolution + Acquisition time + 30 ms Channel 2 Acquisition Time (FM Auto/FM Off) 150 ms/125 ms Channel 2 FM Tolerance (FM Auto) 20 MHz p-p max at 10 MHz rate Channel 2 FM Tolerance (FM Off) 1 MHz p-p at 10 MHz rate AM Tolerance (Ch 1 and 2) Any index provided minimum signal level is not less than sensitivity Channel 2 Amplitude Discrimination (>300 MHz) Automatically measures the largest signal present provided signal is >10 dB (typical) above any signal separated by less than 75 MHz; >20 dB (typical) above any signal separated by more than 75 MHz **Important:** Maximum Channel 2 input is +5 dBm from 50 MHz to 2 GHz and +13 dBm from 2 GHz to 46 GHz; damage level is +27 dBm. Channel 1 damage level is 120 V (dc + ac peak) linearly derated to 5 Vrms at 125 MHz. DVM damage level is ±60 Vdc.**Important:** Power sensors are not included with the instrument. A compatible Agilent 8480 series power sensor must be ordered separately to enable power measurements (see the Available Sensors table for sensor options across the 100 kHz to 50 GHz range).Recommended pairing: use an Agilent 8480 series power sensor with the 53140 Series — for example, the 8481A for general 10 MHz to 18 GHz coverage at -30 to +20 dBm, the 8485A for 50 MHz to 26.5 GHz APC-3.5 mm applications, or the 8487D high-sensitivity sensor for 50 MHz to 50 GHz down to -70 dBm. ## About this used unit - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 0.0 USD - **Vendor:** Agilent - **Type:** Freq Coun - **Tags:** Agilent, Agilent Keysight, Manufacturers, Meters & DAQ, Power, product_manual_group_3, Product_used ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 0.00 USD | In stock | ## Images - Agilent 53148A 26.5 GHz Counter/Power Meter/DVM (Pre-Owned) --- > Source: [ValueTronics](https://valuetronics.com/products/53148a-agilent-power-meter-used) > Updated: 2026-05-30