SR2
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20
provide a ground connection.
4. If an indoor antenna is necessary, simply make it as long as possible and
as high up from concrete floors as you can.
5. When installing any outdoor antenna, BE VERY CAREFUL not to let your
antenna wire come in contact with electric power lines.
6. Any antenna wire for shortwave listening may run horizontally, vertically
or some both ways, or at an angle!
7. If you have a roof-mounted TV antenna, its feedline will make a great
antenna for your SR2.
8. Some existing objects such as; metal downspouts, gutters, windows, door
screens, or attic insulation foil can serve as antennas!
If you are completely restricted to indoor antennas, you will enjoy the extra
boost of the Ramsey Active Antenna Kit, model AA-7. Its built-in whip
antenna can also be boosted by your simple indoor wire antenna, and the
AA-7 may be used with any receiver or even a VHF scanner. It's easy to
build and a nice companion for your SR2. If you need more construction
details on antennas, check the book mentioned on page 6, or any
introductory HAM radio book, or the Radio Shack book on Antennas (No.
62-1083).
75. Decide what frequency range you would like to receive and select
the values for C15 and C16 from the chart. A suggested configuration
would be C15 = 47 pF and C16 = 100 pF. This will give you complete
coverage from 6 to 11 MHz by adjusting T3 in or out. This is a very
active section of the Shortwave Band and will provide you with hours of
listening enjoyment any time of the day. Select and install C15 and C16.
INITIAL TESTING AND ADJUSTMENT
Before turning on your receiver, please double check the following:
correct orientation of all IC's.
correct orientation of flat side of all transistors.
correct orientation of the diodes.
correct polarity of all electrolytic capacitors.
1. Connect a speaker or earphones and antenna.
2. Install a fresh 9-volt alkaline battery.
3. Set both potentiometer controls to their middle positions.
