Sounds like the 1KHz filters that I got
for a 6790GM that are stenciled on the filter 1Hz.
73
Glenn
WB4UIV
On 5/17/2026 4:07 PM, Nick England via
Milsurplus wrote:
I bought a Racal R-2320/URR receiver (RA6703A-6) at Dayton. So today I
downloaded the manual from BAMA and read a few puzzling things -
"Receiver designed to provide reception capabilities for CW, AM,
LSB/USB, FM,and ISB, emissions over the frequency range of 0.5 Hz to
30 MHz."
*** 0.5 Hz**** Wow!
"Input signals from the antenna are connected to a low pass filter
which rejects signals
above 30 Hz."
****rejects everything above 30 Hz*** How's that gonna work out?
"Frequency Range 0.5 kHz to 29.999999 MHz"
****500 Hz ??****
Don't know whether that was in the original manual or a scanning
artifact but I am hoping that the range really is 0.5 MHz to 30 MHz.
If the rest of the manual is that careless about Hz, kHz, and MHz,
then troubleshooting is gonna be fun when I don't know if a mixer
signal should be at 49 Hz, 49 kHz, or 49 MHz....
Nick England K4NYW
Chapel Hill NC
www.navy-radio.com
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--
-----------------------------------------------------------------------
Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV [email protected] AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI, FRA, NRA-LM ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"