Vectronics VEC-102K - Manual (Page 30)

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While a single adjustment of C5 can be made using any reference frequency, it's a good
idea to use your test equipment or other receiver to verify approximate tuning accuracy on
all 5 bands. If one or more bands are drastically wrong, be sure to check for correct
inductor values and good solder connections of the inductors.
If your find Band E (17.5-22.0 MHz) to have very inaccurate tuning, try moving the
windings on L5 closer together or further apart.
Again, please remember that the dial markings are simply intended to be a general guide
for casual listening! Despite your best efforts and our own, the accuracy of the tuning
dial is dependent on the manufacturing tolerance of the five inductors.
Using & Enjoying Your Receiver
To get maximum satisfaction from your new shortwave receiver, we encourage you to
develop good familiarity with these sections of this manual:
•
Antenna Considerations
•
Regeneration Control
•
Band Switch and Tuning Ranges
•
Audio Notes
However, let's say it all as briefly as possible:
1. The better the antenna, the better the reception. In general, 20 to 30 feet of wire will
give good results.
2. The use of the Regeneration Control is learned through experience. It controls the
sensitivity of the receiver and distinguishes between AM broadcasts and CW-SSB.
3. The tuning ranges are set up so that you can expect to find something interesting at any
time of day or night. Bands A and B are most active in the evenings. Band C has
something happening all the time. Bands D and E assure a variety of daytime
reception but also can be busy at night.
4. The audio circuit is designed for one or two pairs of "Walkman'' type stereo
headphones or mini speakers. Other speaker options are mentioned in audio section.
IMPORTANT: The internal 9 volt battery will provide many hours of satisfying listening
provided that you turn the receiver OFF when not in use! This "advice'' may seem
ridiculously obvious, but remember that battery replacement requires removing and
replacing the 8 cabinet screws and that leaving the receiver on overnight will indeed run
down the battery. If you wish, the battery snap wires can be re-routed to the battery
clamp mounted outside on the rear panel. Or, the receiver may be powered by larger
external batteries in the 6 to 12 volt range. 4 to 8 "D'' cells in plastic battery holders
available from Radio Shack will provide months of service.