Gertsch/Singer RHF-1 High-Frequency Standards Receiver

Description

Gertsch/Singer RHF-1 High-Frequency Standards Receiver
Comes with what you see in the pictures. If you don't see it, you probably won't get it.
Specifications are from a 3rd party and may vary slightly due to upgrades, options, or revisions this unit may or may not have.
This unit ships fully tested and guaranteed to work for 30-days, parts and labor, excluding freight.
The Unit's Serial Number Tag Reads:
Serial Number:
185
Features:
Rapid calibrations of frequencies with Bureau of Standards
Receives all 6 international stand frequency channels.
Crystal control of all frequencies
All transistorized circuitry
Operates from 115/230-VAC power line or 12 VDC battery
Output for oscilloscope comparisons
Description:
Here is an all transistorized, superheterodyne received designed for the reception of WWV, WWVH, or other International Frequency transmissions. The extreme sensitivity of this instrument permits reception of these standard frequency transmissions anywhere in the world.
Model RHF-1 provides a low-cost means of rapidly checling the calibration of oscillators and frequency standards to an accuracy of up to one part in 10
7
. Other applications include: precision time measurements, receiving standard audio frequencies, pulse code modulation, and radio propragation notices transmitted at these frequencies.
The receiver operates from either a 115/230-volt, power line source, or a 12-volt battery. I.F. frequency, and band width are controlled with a ceramic filter. Output terminals on the rear of the chassis permit the connection of oscilloscopes, to observe beat frequencies.
Specifications:
Type:
Single conversion, superheterodyne
Operating Frequencies:
2.5, 5, 10, 15, 20, and 25 megacycles
Usable Sensitivity:
1 microvolt
Selectivity:
4 kc wide, 6 dB down. 20 kc wide, 60 dB down
Image Rejection & Spurious Response:
2.5 mc to 15 mc:
50 dB
20 and 25 mc:
35 dB
A.G.C.:
Output change less than 10 dB with input signal of 10 to 30,000 µV
Signal Plus Noise-to-Noise Ratio:
Better than 10 dB (at 3 µv input)
Input Impedance:
52 ohms and high impedance
Audio Output:
100 mw for 3 microvolts input
Monitor Meter:
Relative Signal strength and zero beat indication
Audio Filters:
Panel switch selects 440, 600, and 1000 cycles
f
x
Input:
BNC connector and attenuator on front panel
Oscilloscope Connections:
Banana jacks located on rear of chassis for observation of beat frequency
Audio Output Impedance:
100 ohms approx. (terminals on front panel)
Power Requirements:
120/230 volts, 50/60 cycles at 2.5 VA, or 12 volts C at 120 milliamperes
Dimensions:
7.5" W x 3.5" H x 13" D.
For Domestic Customers: Packaging, handling, and order processing included in shipping in all domestic shipments as quoted by the shipping calculator. For International Customers there is a .00 minimum for packaging, handling, and order processing. International shipping to be determined by destination.
Prior to shipment I will need to know the following information (filled out on a form that I will send you) for International Customers or Packages/Freight being Forwarded internationally. International customers may also be subject to a freight forwarder form if applicable.:
(1) Are you the end-user of this item?
(2) If you are not the ultimate end-user of the item, please state the ultimate end user's name.
(3) What is the ultimate country destination?
07/06/21