This is a 40 meter (7.0 MHz) all mode receiver kit made by Ramsey Electronics, model number HR40. It is small in size but big in features. It can easily tune SSB, CW, RTTY and AM. It can smoothly tune any desired 250 kHz segment of the 40 meter band and can be easily retuned. It uses the popular Signetics NE-602 IC chip for outstanding sensitivity and efficient operation. It has front panel RF Gain, Tuning and Volume controls. An efficient LM-386 Audio amplifier drives speaker or earphones with a clean, crisp audio. The informative manual answers questions on receivers, hookups and uses, and also enhances resale value. It is the ideal companion to the Ramsey QRP-40 CW Transmitter. It can run on a standard 9-volt battery. Clear, concise assembly instructions lead you to a finished product that works the first time!
This document is the instruction manual for the Ramsey Electronics Model No. HR40 Amateur Receiver Kit. It serves as a guide for assembling and operating a direct conversion receiver designed for the 40-meter amateur radio band, suitable for Novice or Technician license holders.
The kit includes all necessary components such as an NE602 IC chip, LM386 audio amplifier, resistors, capacitors, inductors, and a printed circuit board. The manual provides detailed assembly instructions following a 'Learn-As-You-Build' strategy, along with circuit descriptions, parts lists, schematic diagrams, troubleshooting tips, and warranty information.
| Operating Band | 40 Meter (7.0 MHz) |
|---|---|
| Tuning Range | 250 KHz segment |
| Supported Modes | SSB, CW, RTTY and AM |
| Power Source | 9-volt battery |
| Main IC | Signetics NE-602 |
| Audio Amplifier | LM-386 |
Hams with Novice or Technician licenses can operate CW in the 80 and 40 meter bands using this receiver.
The HR40 uses a Direct Conversion receiving circuit which processes signals at their own frequency without an intermediate frequency.
No, it permits tuning of CW, AM and SSB signals with no need for a separate BFO.