[Milsurplus] thoughts on the SRR family of radios

[Glenn Little WB4UIV]

I don't think that that will fit on a submarine.

73
Glenn
WB4UIV
ETCS(SS) USN Retired

On 5/10/2016 12:55 PM, Nick England wrote:
> Oops, forgot the HFRG photos
> http://www.navy-radio.com/xmtrs/hfrg-01.JPG
> http://www.navy-radio.com/rcvrs/images/hfrg-cvn75-2010.jpg
> http://www.navy-radio.com/xmtrs/hfrg-02.JPG
>
> Nick England K4NYW
> www.navy-radio.com <http://www.navy-radio.com>
>
> On Tue, May 10, 2016 at 12:52 PM, Nick England <navy.radio at gmail.com
> <mailto:navy.radio at gmail.com>> wrote:
>
>     I don't know about today's installations, but as of 2007 many
>     surface ships were being fitted with Harris AN/URC-131(V) (HFRG High
>     Frequency Radio Group) systems which included the R-2557/URC, a
>     version of the Harris RF-590
>     http://www.navy-radio.com/rcvrs/images/r2557-61.jpg
>
>     Here's a little info - /From "Jane's Military Communications"/- The
>     AN/URC-131(V) High Frequency Radio Group (HFRG) system is an
>     integrated, solid-state naval communications suite, designed to
>     provide a balance between transmitter and receiver performance in a
>     co-located shipboard environment. The three main communications
>     components of the AN/URC-131 (V) are the Broadband Transmit Group
>     (BTG), the Narrowband Transmit Group (NTG) and the receive system.
>     The third-generation BTG is of solid-state design and provides
>     coverage of the 2 to 30 MHz band. Three BTG variants have been
>     produced - a 4 kW (8 circuit) system, an 8 kW (17 circuit) system
>     and a 12 kW (26 circuit) system. All three systems use only two
>     topside broadband antennas. The NTG consists of up to three
>     solid-state 1 kW transmitters with power post-selectors and digital
>     antenna couplers. The NTG can be tuned in the presence of adjacent
>     antenna interference and offers completely silent tuning. It has a
>     rapid-tune digital antenna coupler. It can also serve as a
>     stand-alone system aboard small ship platforms. The receive system's
>     R-2557A/URC receiver operates over the full LF, MF and HF frequency
>     range from 10 kHz to 30 MHz. Other features include: up to 49
>     receive circuits; passive antennas, which require no electronics
>     topside; and an atmospheric noise-limited design. The HFRG's HFRG
>     Remote Control/ Monitor Subsystem (RCMS) is designed for 'lights
>     out' operation in the transmitter and receiver compartments. Its
>     features include: a ruggedized, PC workstation with full ASCII
>     keyboard and pointer for function selection/ activation; redundant
>     control buses and subsystem controllers for system survivability.
>
>
>     Nick England K4NYW
>     www.navy-radio.com <http://www.navy-radio.com>
>
>     On Tue, May 10, 2016 at 11:33 AM, <mstangelo at comcast.net
>     <mailto:mstangelo at comcast.net>> wrote:
>
>         Mike,
>         Mike,
>
>         That's another good analogy.
>
>         Would you know the answer to the question I posed? Who is
>         manufacturing the HF receivers and transmitters used by the Navy
>         today?
>
>         Mike N2MS
>
>
>
>
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-- 
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Glenn Little                ARRL Technical Specialist   QCWA  LM 28417
Amateur Callsign:  WB4UIV            wb4uiv at arrl.net    AMSAT LM 2178
QTH:  Goose Creek, SC USA (EM92xx)  USSVI LM   NRA LM   SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
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