Precision 5dB and 15dB ENR noise sources from RF Design ...

• Carefully designed for stability and preaged prior to calibration
• Rugged and low cost alternatives <3.5 GHz for HP 346A and HP 346B
• Flat ENR over the specified operating range free of spurious responses
• RFD 2305 offers exceptional VSWR performance, noise (drive) on or off, plots here
• We use several Agilent lab calibrated HP 346A as reference standards
• We use HP 8970B with 12 GHz down converter in a low VSWR custom calibration fixture
• RFD 2305 / 2315 are HP 8970 A/B & NFA compatible. (Also many spectrum analyser NF options)
• Use any sensitive AM/SSB receiver to carry out NF measurements using the audio channel
• Friendly and free ongoing applications support and 3 years warranty
  

---

'Professional grade products with personal service, from initial order handling through to passionate technical support from enthusiast engineers'

PRODUCTS SHIP 6 TO 10 WORKING DAYS FROM ORDER & PAYMENT
A FIRM SHIPPING DATE IS PROVIDED AT TIME OF ORDER
ALL SHIPPING USES A TRACKED SERVICE
EU DESTINATIONS ... We ship to the EU duty UNPAID.

All sales are covered by a 3 year warranty against manufacturing defects
(Our LNA products were discontinued in August 2021 due to critical component obsolescence.
We have sufficient components put by to service and maintain existing customer LNAs)

---

See the Events page to contact Kevin G3AAF regarding WA5VJB antennas and the events calendar

Our noise source and LNA customers include Caltech Radio Astronomy Laboratory, Caltech Division of Geological and Planetary Sciences (GPS), Max Planck Institute for Radio Astronomy, University of Oxford, Arqiva, Ofcom and hundreds of commercial, radio astronomy and ham radio enthusiasts around the globe. Thank you all for your interest in our products.
RF Design established 1989​

Surplus test equipment sale from our own lab ... click here