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N1UL_2

7/8/2023

2 Comments

 

Episode 458 - Ulrich Rohde - N1UL

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Dr. Ulrich Rohde, N1UL,  is a trailblazer in the world of RF oscillator and receiver design. Throughout the past four decades, N1UL has penned more than 60 articles for esteemed publications like QST and QEX magazines. Not only that, but he has also contributed to the field through his books, academic papers, and various articles. Dr. Rohde continues to impact on his family business, the Munich-based Rohde and Schwarz test equipment company, as well as on amateur radio manufacturers such as Icom where he played a key role in the design of the IC-7850.  Ulrich Rohde was featured in this month’s QST magazine, and N1UL is my QSO Today.
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​Website: ​http://n1ul.com/

​Amazon Books by Dr. Ulrich Rohde


Ham radio father: Dr. Lother, Rohde,  DJ5LR, co-founder of Rohde and Schwarz   

Collins KWM2 Transceiver

First License: 1956, DJ2LRX, with VHF and UHF privileges

Articles about and by N1UL:
  • TUM Alumni Biography of Dr. Ulrich Rohde
  • Metamaterial Resonators: Theory and Applications, by Dr. Ulrich Rohde
  • Entrepreneur and scientist: The joys of problem solving
  • Introduction  to Modern Signal Generation; from Analog to Digital: Needs,advantages, Disadvantages and Solutions, Prof. Dri Ulrich L. Rohde

First USA callsign: KA2WEU, later N1UL

Telefunken Manpack Transceivers

​PRC-104 manpack transceiver

Intermodulation Distortion

​AGC Pin Diode Attenuator for the Yaesu FT 101

Receiver Dynamic Range

​AG Telefunken AEG6861/12mod

Rohde And Schwarz, Clifton, NJ

RCA Corporation

Software Defined Radio at RCA

Automatic sideband carrier tuning

I.I. Rabi Award, 2015, to Dr. Ulrich Rohde  that recognized his outstanding contributions related to the fields of atomic and molecular frequency standards.  

Superregerative receiver

Pentode Tube

SSB oscillators suppresses a weak signal

The Q of an Inductor

Numerically controlled DDS oscillator

Grounded Grid Transmitter

FET Transistor

LDMOS up to 50 Mhz.

Icom IC-7850  - Icom made 100 of these radios.  Ulrich has serial number 001. Replaced by the IC-7851

Analog Devices AD9914  synthesizer

Favorite mode: SSB

Interesting Rig: Rohde and Schwarz, MT3B manpack transceiver

Metamaterial Structure

Joe Taylor, K1JT

WhatsApp

Spider Net 14.337 MHz

Synergy Microwave, Inc.

5G Cellular Telephone Standard

Ronde and Schwarz  Signal Generator for 5G

Swan 53 Sailboat

Beneteau 47 Sailboat

Most excited by:  amateur radio is a legal playground to try out new RF devices in every frequency range.

Advice to new or returning hams: use amateur radio as a way to meet and have conversations with interesting people over the air.

The RSS Feed for all audio content from QSO today is available from here. 
​
​Please join our QSO Today community by pressing the button below. It is the best way to suggest guests and topics, and provide feedback to Eric, 4Z1UG.
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N1UL Ham Shack
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AG Telefunken SE-6861 Manpack Transceiver
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Rohde and Schwarz M3TR Manpack Radio
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com IC-7850 HF Transceiver
2 Comments
Denis F5VJC
7/9/2023 03:54:27 am

Wonderful podcast, what a brilliant man!
Wish I'd worked for him.

Thanks Eric 73

Reply
Max link
7/13/2023 01:40:26 am

Follow DJ2LR - N1UL since 1970!
vy 73+55 Max, www.dk5rv.de

Reply



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