[NLRS] Mitsubishi 902 MHz RF Modules (1296 MHz, too)

John (JK) Kalenowsky, K9JK hamk9jk at ameritech.net
Fri Nov 17 09:47:34 EST 2006


Hello NLRSers and BCers,

Might there be any interest in a "group buy" of Mitsubishi 902 MHz RF 
Modules, part # RA20H8994M?

These are a nice little module for the band, three-stage MOSFET amplifiers, 
"rated" for 20 Watts out with 50 mW in. Here's the datasheet link from 
RFParts.com http://www.rfparts.com/pdf_docs/RA/ra20h8994m.pdf

The modules can be biased to be linear (it even says that ON the datasheet) 
and it is my understanding that these are the same modules that DEMI uses in 
their "new" series of 902 "High Power" Transverters and 902 PAs. It is also 
my understanding that these are easily capable of 30W PEP output PER module 
(and that is consistent with DEMI's ratings).

RFParts "list price" on these is $71.25 and I would hope to get that down to 
$65 (or lower) with a sufficient quantity buy and I understand the "best 
shot" for maximizing discount is if 10 (or more) are ordered.

As a comparison...I was involved in a group buy for the similar 1296 modules 
(Mitsubishi RA18H1213M), where RFParts "list price" is $78.25, and with a 
purchase of 10, the group buy coordinator is able to pass the few "extra" he 
got of THOSE for $65 (including shipping to you). AND, if anyone might be 
interested in one or two of those 1296 modules, I believe some ARE still 
available, I can get you in contact with the person who has them. ALSO 
available from this person are the PC Boards to "connect" the modules and 
provide the Vdd and bias voltages as well as "50 ohm" RF in and out...these 
are $10 each from him so consider THAT "need" as well if you are thinking 
about purchasing either of these modules.

If anyone is interested, please let me know by Sunday evening, 11/19.

73, JK 



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