B+K 350A AC Clamp Meter to 1000 amps, manual ranging. Cushman CE-5 - See also: Bryan Blackburn's CE-5 page. Cushman CE-31A Radio Test Set. For Cushman owners, these documents provide all the in-depth information you need to get the most out of your vehicle.
![]() Information to the user
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
Canada Warning for Wireless
This device operates on a no-protection, no-interference basis. Should the user seek to obtain protection from other radio services operating in the same TV bands, a radio licence is required. For further details, consult Innovation, Science and Economic Development Canada’s document Client Procedures Circular CPC-2-1-28, Voluntary Licensing of Licence-Exempt Low-Power Radio Apparatus in the TV Bands.
Ce dispositif fonctionne selon un régime de non‑brouillage et de non‑protection. Si l’utilisateur devait chercher à obtenir une certaine protection contre d’autres services radio fonctionnant dans les mêmes bandes de télévision, une licence radio serait requise. Pour en savoir plus, veuillez consulter la Circulaire des procédures concernant les clients CPC‑2‑1‑28, Délivrance de licences sur une base volontaire pour les appareils radio de faible puissance exempts de licence et exploités dans les bandes de télévision d’Innovation, Sciences et Développement économique Canada.
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes :
![]()
Industry Canada ICES-003 Compliance Label: CAN ICES-3 (B)/NMB-3(B)
Note: EMC conformance testing is based on the use of supplied and recommended cable types. The use of other cable types may degrade EMC performance.
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to operate the equipment.
The Test & Measurement Pageby Adam Farson VA7OJ/AB4OJThe Basics:
Every amateur radio station should be provided with the following minimal test equipment:
For the advanced Ham:
For more sophisticated station adjustment (SSB audio, modulation envelope, tones in digital modes etc.), we should add:
Now we're getting serious:
Radio amateurs who are interested in aligning and repairing their own (or their friends') radio gear may wish to go a few steps further:
For those interested in radio performance evaluation:
We have already accumulated a pretty good little RF lab here. For radio performance testing, we can add:
Won't I go broke buying all this kit?
Not necessarily! As the old saying goes. 'it's an ill wind that blows nobody any good.' Perhaps the greatest boon which the dot-com bust and the telecom implosion conferred on the amateur radio community (at least on those of us whose livelihood was not affected by these events) is the availability of top-quality test instruments on the second-hand and surplus market. At many hamfests, one will see such legendary makes as HP/Agilent, Tektronix, Fluke, Boonton, Millivac, Philips, Systron-Donner and even Rohde & Schwarz, sometimes at pennies on the dollar.
Next, we will get into some specifics...Educational Documents:
Fundamentals of Quartz Oscillators (HP App Note 200-2)
Spectrum Analysis Basics(HP App Note 150)
Spectrum Analyser Fundamentals (R&S Primer)
Phase Noise Measurement Techniques (R&S Tutorial)
Fundamentals of RF and Microwave Power Measurements (HP AN 1449) Part1234
dB or not dB? R&S App Note 1MA68 mirror
Measuring Reciprocal Mixing Dynamic Range (RMDR) in Receivers:ITU-R Recommendation F.612
Improved Methods for Measuring Distortion in Broadband Devices- including NPR
Watkins-Johnson Technical Publications on classical RF and broadband wireless topics
Manuals for sale:
Cushman CE-31A/B Operating & Service Manuals, with schematics, on CD-R. Price: USD 25.00, postage paid.
Links:
HF Receiver Testing: Issues and Advances(presentation atNSARC)
Why is the term 'RMS Power' meaningless?
A simple VSWR nomograph
Return Loss/VSWR anddBm/Volts/Watts conversion charts - courtesyMini-Circuits Inc.
Cascaded Noise Figure Calculator - courtesyMini-Circuits Inc.
Calculator for Insertion Loss Uncertainty due to Mismatch - courtesyMini-Circuits Inc.
Calculator for Gain Uncertainty due to Mismatch - courtesyMini-Circuits Inc.
Lossy, Mismatched Transmission Lines - relationship between line loss and VSWR
Noise Figure Measurement by KO4BB
A Comparison of ARRL Lab Data For Selected Transceiversby Jim Brown, K9YC mirror
My friend Walter, VE7WRS' website (including Testing)
A presentation on RF Test & Measurement byWalter VE7WRS andmyself atNSARC
My NSARC presentation 'HF Receiver Testing: Issues and Advances' - APDXC 2014video
A New Look at SDR Testing - a paper presented at SDR Academy 2016, Friedrichshafen, Germany
SDR vs. Legacy Radio: which is better? - presented at PPDXC 2016, Osaka, Japan
Receiver Performance Data in the SDR Era - presented at Sea-Pac 2017, Seaside OR, USA
Jeff Smith, VE1ZAC's Website including test methods & equipment
A Brief Treatise on the Decibel by George T. Baker W5YR (SK)
Kiss Electronics - classic and refurbished HP test equipment, and repairs
Amtronix Instruments - a resource for HP/Agilent service monitors.HP/Agilent 8935
Cycles/sec. to Hertz converter - for those among us who are 'of a certain age'
Under Construction![]() Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |