[Milsurplus] thoughts on the SRR family of radios

[Nick England]

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

On Tue, May 10, 2016 at 12:52 PM, Nick England <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
>
> On Tue, May 10, 2016 at 11:33 AM, <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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