Difference between revisions of "146 MHz amplifiers"

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[[File:rd70.JPG|400px]]
 
[[File:rd70.JPG|400px]]
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Or have a look at M0DTS web page. http://www.m0dts.co.uk/index.php?tag=146MHz
  
 
===Mitsubishi power modules===
 
===Mitsubishi power modules===
  
The Mitsubshi range of power amplifier modules work well on 146 MHz
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The Mitsubshi RA60H1317M 60 watt brick can be driven via the YU1LM filter and a 10 dB attenuator from the Portsdown transmitter to provide approximately 7 watts output.
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[[File:146 333ks +10dB 7watts.JPG|400px]]
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Ready built amplifiers using this module are available from Bert Modermann PE1RKI http://www.pe1rki.com/
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* Sam Jewell G4DDK, 8W amplifier kits, pcb, manual etc.
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For those who want to roll their own the following were published:-
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* Sam Jewell G4DDK, 8W 2m amplifier.
 
http://www.g4ddk.com/144MHz8WPA.pdf
 
http://www.g4ddk.com/144MHz8WPA.pdf
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* Ian White GM3SEK application note on using the high power Mitsubishi modules
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http://g4ddk.com/AN4.pdf
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Components are available from the following
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*Minikits
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http://www.minikits.com.au/
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specifically for PCB assemblies http://www.minikits.com.au/electronic-kits/rf-amplifiers/rf-high-power
  
 
* Anglia Live, suppliers of Mitsubishi power modules
 
* Anglia Live, suppliers of Mitsubishi power modules
http://www.anglia-live.com/products/rf-products/rf-discretes-modules/rf-mosfets/list/perpage/21/page/1
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https://www.anglia-live.com/
 
 
* 60W power amplifier pcb (available from G4DDK above)
 
http://www.ifwtech.co.uk/g3sek/vhfdx/gm3sek-pa-module-board
 

Latest revision as of 13:32, 29 November 2020

RD series

Rob M0DTS published an easy to construct design using the RD series of FETs in CQ-TV 247 and 249 - a good way to get a clean 5 watts on 146 MHz. (The full article is available in high resolution in the magazine)

Rd70.JPG

Or have a look at M0DTS web page. http://www.m0dts.co.uk/index.php?tag=146MHz

Mitsubishi power modules

The Mitsubshi RA60H1317M 60 watt brick can be driven via the YU1LM filter and a 10 dB attenuator from the Portsdown transmitter to provide approximately 7 watts output.

146 333ks +10dB 7watts.JPG

Ready built amplifiers using this module are available from Bert Modermann PE1RKI http://www.pe1rki.com/


For those who want to roll their own the following were published:-

  • Sam Jewell G4DDK, 8W 2m amplifier.

http://www.g4ddk.com/144MHz8WPA.pdf

  • Ian White GM3SEK application note on using the high power Mitsubishi modules

http://g4ddk.com/AN4.pdf

Components are available from the following

  • Minikits

http://www.minikits.com.au/ specifically for PCB assemblies http://www.minikits.com.au/electronic-kits/rf-amplifiers/rf-high-power

  • Anglia Live, suppliers of Mitsubishi power modules

https://www.anglia-live.com/