Summary of Contents for Ameco R-5
- Page 1 Owner’s Manual Model R-5 DIVISION OF AEROTRON, INC. · RALEIGH, NORTH CAROLINA (Digital version: Mike Markowski AB3AP, Mar 2020) MB – 7000 1270...
-
Page 2: Operation
BANDSPREAD CONTROL – Used for MAIN TUNING CONTROL – Used for tuning in very fine tuning after locating station Broadcast Band and to scan the short wave bands. desired with MAIN TUNING CONTROL. Leave on CAL when using the main tuning dial. - Page 3 When tuning signals where the stations are very close together, the main tuning dial can be left at a slightly higher frequency and the fine tuning can be done with the BANDSPREAD control. SHORT WAVE TUNING Short wave Broadcast Stations: Set the controls for AM Broadvast.
- Page 4 When the signal is tuned in exactly on frequency, it will probably not be as clear as you desire. Tune the radio slightly to one side of the exact frequency, and the voice will become clear and easily understood. As a general rule, one side will be clearest, so tune both sides of the frequency to achieve the best response.
- Page 5 LISTENING TO THE FM BAND Certain bands of the frequencies in the 30 – 50 MHz range are allocated by the U.S. Government to what is known as the Public Service Channels. This includes police, fire departments, forestry and conservation, and special emergency service. Frequency modulation is used by these services because of its ability to overcome much of the effect of ignition noises.
-
Page 6: Glossary Of Terms
AC line voltage – 117 volts. Signal generator with 50 ohm output impedance. Modulated 30% at 400 Hz. 0.1 uF in series with signal generator for DC isolation. Output measured across 3.2 ohm resistor connected to PHONES jack with AC voltmeter. 1.0 volt RMS reference output. - Page 7 CQ – A general call used to establish contact between amateurs CW – Continuous wave. Unmodulated signal with the message transmitted by interruptions which produce dots and dashes. FM – Frequency modulation QRM – Interference from other signals QRX – Standby QRN –...
- Page 8 COUNTRY CITY FREQUENCY IN MHz Holland Hilversum 11.730 Hungary Budapest 6.235 – 9.833 Italy Rome 6.010 – 9.630 Japan Tokyo 11.780 – 15.135 Lebanon Beirut 9.710 Netherlands Bonaire 9.605 Portugal Lisbon 6.025 – 6.185 Romania Bucharest 5.990 – 9.570 South Africa Johannesburg 9.675 –...
-
Page 9: Alignment Procedure
ALIGNMENT PROCEDURE 1. Use an amplitude modulated generator covering 455 kHz to 54 MHz. 2. Connect the output meter across the speaker voice coil. 3. Use non-metallic alignment tools. GC #8606L or similar. 4. Use a standard EIA dummy antenna as shown. 5. - Page 10 STEP SIGNAL GENERATOR BAND RECEIVER ADJUSTMENT GENERATOR FREQUENCY SELECTOR DIAL CONNECTIONS SETTING SETTING Same as Step 3 0.6 MHz 0.6 MHz L106B and L103B (30% mod.) for maximum output as in Step 1. Same as Step 3 Repeat steps 3 and 4 until no further increase in output can be obtained on...
- Page 11 STEP SIGNAL GENERATOR BAND RECEIVER ADJUSTMENT GENERATOR FREQUENCY SELECTOR DIAL CONNECTIONS SETTING SETTING Same as Step 3 50 MHz 50 MHz C107A and C105A (30% mod.) for maximum output as in Step 1. Same as Step 3 25 MHz 25 MHz L101 and L104 for (30% mod.) maximum output as...
- Page 13 FACTORY ASSEMBLED RF SUBASSEMBLY Item Description Part No. Coils L 101 Coil antenna 1801 1601 032 L 102 Coil antenna 1801 1601 033 L 103 Coil antenna 1801 1601 034 L 104 Coil, oscillator 1801 1601 032 L 105 Coil, oscillator 1801 1601 035 L 106 Coil, oscillator...
- Page 15 AMECO R5 ALLWAVE RECEIVER 13 Dec 1967 This ADDENDUM should be kept with your Owner’s Manual for the Model R-5 Allwave Receiver. The schematic diagram and printed circuit board diagram shown on this ADDENDUM reflect the latest changes in the R-5 Receiver.
- Page 16 PRINTED CIRCUIT BOARD OUTLINE, REV A...
Need help?
Do you have a question about the R-5 and is the answer not in the manual?
Questions and answers