USD $30
Known more commonly as a “lightning arrestor”, this device is normally connected to antenna arrays to prevent sudden, unexpected, and catastrophic electrical discharge from your antenna into your very expensive equipment.
This item is what goes “boom” before your several thousand dollar radio does in the event of a lightning strike.
Stock: 7
USD $135
The 5328A is a 9-digit, programmable Universal Counter suitable for benchtop and system automation. Option flexibility makes matching units to system requirements easy. Standard measurements include frequency A, period A, period average A, time interval A to B, time interval average A to B, ratio B/A, and frequency C.
This unit has option 011 – HP-IB Interface
Stock: 1
USD $225
Calibration state and working condition of this unit is unconfirmed, and it does not have a current calibration sticker.
Stock: 1
USD $385
The Racal-Dana Frequency Standard Distribution System 9478 provides a reliable and convenient means of generating and distributing up to nine standard frequency signals, all phase locked to a single frequency standard. Where more than nine independent outputs are required, two or more systems may be cascaded.
Stock: 1
USD $265
The HP 8904A is a multifunction frequency synthesizer that produces six fundamental waveforms to create complex signals. The waveforms available are: DC, sine, ramp (sawtooth), triangle, square, and white (Gaussian) noise.
Stock: 1
USD $10
This is another Walter 2 original, and looks to be some form of voltage / RF signal 50 MHz reference generator. Could be something entirely different, though.
Stock: 1 on hold
USD $130
Alan Fixed Attenuator
Input: 50HP30-50 N 8938
Output: 69019
Stock: 1
USD $145
100 Watt Fixed Attenuator FH Series
Model 50FH-030-100-2
30dB 100 Watts DC-2 GHz
Part details available here
Stock: 1
USD $30
Narda Coaxial Directional Coupler 3.7-8.3 HGz
Model no: 6044B-10
Serial no: 41493
Stock: 1
USD $15
Narda CEL30470-01 Directional Coupler
Serial no: 2482 820-960 MHz
Stock: 1
USD $30
Narda Coaxial Directional Coupler .95-2.0GHz
Model no: 3002-10
Serial no: 04034
Stock: 1
USD $75
The Hewlett Packard 3581A Wave Analyzer resolves and measures the amplitude and frequency of spectral components. This instrument offers accurate amplitude and good frequency resolution in the form of a portable, easy-to-use measuring tool. Since not all signals originate from a stable frequency source, the HP 3581A incorporates an AFT circuit which locks to a drifting signal for stable, accurate measurements.
Stock: 1
USD $50
Stock: 1
USD $30
Narda Coaxial Directional Coupler 1.7-4.2 GHz
Model 3043B-10
Serial no 08105
Stock: 1
USD $30
Wavecom Ultraflat Directional Coupler 4.0-8.0 GHz
Model no 913-10
Serial no 86
Stock: 1
USD $30
JFW Attenuator
Model 50DR-055
Serial 354055 0245
Stock: 1
USD $30
Narda Coaxial Directional Coupler 0.92-2.2GHz
Model 3042B-20
Serial no. 01074
Alfred Electronics
Part no. 951099
Serial no. 78
Stock: 1
USD $10
MECA “N” Termination 50 OHM
Model 401-1
Stock: 5
USD $40
The HP Tracking Generator 8443A can be combined with the 141T/8552B/8553B Spectrum Analyzer System to make swept insertion loss and return loss measurements over the 1kHz to 110MHz frequency range. In the ‘Track Analyzer’ mode, it provides a CW signal which tracks the tuning frequency of the 8553B and in the ‘Restore’ mode it provides an enhanced replica of the signal indicated by the marker on Spectrum Analyzer’s display. Frequency range 1 kHz to 110 MHz, built-in 8-digit counter, RF amplitude range <-120 dBm to +10 dBm in 10 and 1 dB steps with a continuous 1.2 dB Vernier. Output impedance 50 ohm.
Stock: 1
USD $100
The Racal-Dana RF Level Meter Model 9303 is a microprocessor controlled instrument making signal level measurements in the frequency range from 10 kHz to 2 GHz, between 30 µV and 3.162 V. The instrument has autocalibration facility and a built-in calibration signal source. Measurements are made via a sensing head Racal-Dana 11-1478, paired as PN with the instrument.
Includes three Racal-Dana sensing heads (2x 11-1540, 1x 11-1478).
Stock: 1
USD $350
HP 394A Variable Attenuator 1000 – 2000 MHz
Stock: 1
USD $175
HP 11691D Directional Coupler – 2-18 GHz
Stock: 2
USD $15
Wavetek Attenuator – 50 Ohm, 70dB, SMA DC – 2000 MHz
Stock: 12
USD $5
Trak Microwave Direction Coupler – FSCM 12855
Stock: 9
USD $15
Reactel Microwave Filter – Model 9C11-1370-63-S12
Stock: 1
USD $10
Stoddart Attenuator – 20dB 50 Ohms.
Stock: 3
USD $22
Locus Inc. RF1464I Amp 1.5-3.5 GHz 18dB Gain SMA RF Amp
Stock: 1
USD $42
NARDA 3002-10 Coaxial Directional Coupler 0.95-2GHz
Serial No: 70948
Stock: 1
USD $43
NARDA 3003-10 Coaxial Directional Coupler 10dB
Serial no: 549
Stock: 1
USD $22
NARDA 3045B-20 Coaxial Directional Coupler
Serial no: 220
Stock: 1
USD $32
NARDA 3022 BI-Directional Coaxial Coupler
Serial no: 05030
Stock: 1
USD $65
Hewlett Packard 767D Dual Directional Coupler 1900-4000 MC
Stock: 1
USD $20
TRAK 29P1401 Directional Coupler
SN369 & SN368
Stock: 1 Lot
USD $10
NARDA 773-10 Attenuator 10dB
Data sheet available here
Stock: 1
USD $10
NARDA Directional Couplers
Model: 4246B-20
20dB 6-18GHz
Stock: 2
USD $40
Hewlett Packard 355C VHF Attenuator 12dB
Frequency range DC-1000 MHz
50 OHMS
Max RF Power 0.5 Watt CQ
Serial: 3646A44751
Stock: 1
USD $5
Ditom Directional Coupler DF-1965 w/Termination ( #103, #100 )
Stock: 2
USD $72
Narda 3292-1 Broadband High Directivity Coupler, 1-1.8GHz
Stock: 1
USD $65
Narda 3003-10 Coaxial Directional Coupler
Stock: 1
USD $165
Narda 5292 Broadband High Directivity Coupler, 1-1.8 GHz
Stock: 1
USD $115
Norsal Directional Coupler – 4-18GHz
Stock: 1
USD $135
Krytar 158010 5.8GHz Directional Coupler
Stock: 1
USD $85
RLC Electronics Mode-S
RF Transfer Switch / Relay 97942-1D21923H01
MFR 12598-S-4462
Voltage 25-36VDC
Stock: 6
USD $55
Mini Circuits 15542 ZFDC-20-5 Coaxial Directional Coupler
Stock: 2
USD $55
NARDA Directional Coupler
Model 23808a-01 0.5-2.05 GHz
Stock: 1
USD $42
26510R1-10 A23034-10 Directional Coupler 1.4GHz
Stock: 1
USD $35
OMNI Spectra 2023-6121-06
Freq 1.0-2.0 GHz Bio Reactional Coupler
Data sheet available here
Stock: 4
USD $35
NARDA Microline 23715 Precision Reflectometer Coupler
Frequency Range .95 to 2.2 GHz
Model 23715 Serial no 19
Stock: 1
USD $30
NARDA 3044-10 Directional Coupler 10dB
Serial no 06119
Stock: 1
USD $20
ARRA N3164-30 Directional Coupler
Serial no 1032
Stock: 1
USD $110
Narda 2301-20 Coaxial Directional Coupler
Stock: 2
USD $65
Hewlett Packard 8495H 70dB Attenuator
Freq Range DC-18GHz, Max RF Power 1W CW
Option 001
Serial No 2816A21567 & 2520A02384
Stock: 1
USD $35
Narda Coaxial Directional Coupler
Model 3043-10
Serial no 03144
AA7K65
Stock: 1
USD $30
Stock: 2
USD $3
Amphenol 82-5722-RFW
50Ω “N” Terminators
Stock: 20
USD $50
Herotek DT142-17 1-12GHz SMA RF Coaxial Power Detector
S/N 62593
01-002559-00G
Stock: 6
USD $9
Junction Devices 3SI101-2 231C Coupler
Stock: 2
USD $20
VMC Directional Couplers DC9109-16M
-18dB@ 1.4GHZ
-16dB @ 2.0GHZ
Usable to 5GHZ
Stock: 5
USD $20
MECA Directional Coupler 700-MO34-0
KS-21603L4
-20DB
Stock: 1
USD $30
96214-711433-1 Innowave 1016 IV-045 Coupler RF Coaxial Isolator
Stock: 2
USD $35
Anaren 10616-30 2.0-4.0 GHz
-30dB Directional Coupler
Stock: 7
USD $60
Narda Directional Coupler 10-200 MHz
-20DB
Model 3060-20
Stock: 1
USD $25
Innowave 58202
507754-121 Coupler
Rev R
S/N 3-073
D/C 9009
Stock: 1
USD $20
Coupler Serial No. 5-4362
FT.NO.23515G1
J1 J2 J3
Stock: 1
USD $50
SAGE Directional Coupler C0518-10 .5-18GHZ with 5mA-“N” Adapters
Stock: 1
USD $45
Nerda Coaxial Directional Coupler
.125-.250GHz
Model no: 3039-20
Serial no: 10004
Stock: 1
USD $150
Farnell RF Power Amplifier 1-5 – 520MHz
Model LA520
Serial no: 000219
48-440Hz
15VA MAX
Fuse 20x2mm A/S
230V-160mA 115V-250mA
Stock: 1
USD $35
Hewlett Packard 05510-60012 Interface Driver Circuit Board
Stock: 1
USD $175
Pacific Measurements Inc. Portable RF Power Meter
Model: 1034A
Power Input: 50 to 400 Hz
Operating and maintenance manual available here
Stock: 1
USD $2
RF Connector UG-625/U BNC Straight Jack Solder Cup Bulkhead 50 Ohm
Data sheet available here
Stock: 85
USD $10
This is a 450-470MHz drop-in RF/wireless isolator with 100 Watts power handling, operating over the full
temperature range of 0 to +80 °C with dimensions of 38.1 x 45.7 x 11.5 millimeters.
Specifications over temperature are insertion loss 0.35dB, isolation 22dB and VSWR 1.19:1
maximum
Stock: 1
USD $10
This solid metal enclosure measures 2.5″ x 4.5″, and features five points of connection. While there are no markings or certifications visible, this casing likely meets an IP68 rating.
Stock: 12
USD $500
This combination Sweep Oscillator and RF plug-in have just come back from testing and are in good working order. It is a powerful general-purpose source for swept microwave measurements, CW signal generations and automatic testing and provides a frequency range of 10 MHz to 40 GHz. This mainframe includes many productivity features, such as five independent, continuously variable markers, a marker sweep function, and save/recall registers that provide quick access to nine complete front panel settings
Stock: 1
USD $300
This unit has just come back from testing and is displaying Error 517 – Output prelevel cal restore cal rom.
Unit includes option H03.
Frequency Range: 250 kHz – 1000 MHz
Accuracy: Typically ±3×10–6 x carrier frequency (Hz)
Switching Speed: <120 ms
Power Requirements: 90-264V, 48-440 Hz, 170VA Maximum
Stock: 1
Sphere Research Corporation