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Summary of Contents for Cambridge SoundWorks SoundWorks Radio 820HD
- Page 2 Antenna Input Identification FM Antenna Input an “F” connector jack AM Antenna Input a 3.5 mm minijack...
- Page 3 Antennas Provided with the SoundWorks Radio 820HD Connect one FM antenna and the AM antenna. Active section FM wire antenna FM dipole antenna, with push-on connector with push-on connector -for strong signal areas- -best overall reception- easily to conceal see page 2...
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Page 4: Connect The Fm Antenna
Connect the FM antenna Dipole Antenna 1) The dipole antenna provides the best reception of the three antennas when properly positioned. The dipole an- tenna consists of an active section and a lead-in section (see illustration on previous page). 2) Position the active section of the dipole antenna against a wall or along a flat surface of a non-metallic piece of furniture. Keep the active section of the dipole as straight as possible. Use thumbtacks or brads to secure the ends and the middle of the active section. 3) Connect the dipole antenna to the SoundWorks Radio 820HD by pushing the connector plug onto the FM an- tenna input. You can coil excess length of the lead-in section, then secure it with twist ties or tape. Note: The active section of the dipole antenna can be positioned horizontally or vertically. Placing the dipole antenna on an outside wall improves reception. The active section of the dipole antenna can also be positioned along a baseboard. Try a different placements and orientations of the active section to determine the best overall reception. Dipole Antenna Placement... - Page 5 Telescoping Whip Antenna The telescoping whip antenna provides good reception and can be easily adjusted. With adjustment factored in, it may perform the best of the three antennas. Once properly installed, the telescoping whip antenna will remain at any position you place it. To Install: a) Push the end of the antenna with the nut onto the FM connector. b) Slip the supplied wrench around the antenna and slip it up against the nut end of the whip antenna. The wrench flanges will be close to touching the back of the radio when you have successfully slipped it onto the antenna nut. c) Tighten the antenna nut securely. d) Remove the wrench, then push the antenna upright. Extend the whip antenna, then adjust for best reception on a particular station, as required. Note: For FM stations below 94 mHz, the antenna will always perform best if fully extended. Stations above 98 mHz may benefit from a reduction in length of up to 2-3 inches.
- Page 6 Two Orientations for the Wire Antenna Run the wire antenna along the edge of a table or just underneath the edge of the table. If there is a wall behind the radio, let the antenna hang straight down.
- Page 7 AM Antenna 1) Identify the AM Antenna. 2) Fold the base as shown. 3) Snap the tab on the loop into the slot in the base to complete the AM Antenna assembly. Be careful not to pinch the connecting wire. 4) The finished antenna will stand upright, as shown. 5) Insert the AM Antenna plug into the AM antenna input, which is directly underneath the FM antenna input. 6) Position the AM antenna 8 inches away from AC power lines or equipment to minimize AM interference. The AM Antenna is mildly directional, so rotate it to find the best signal for each AM station. A single position can often be found that works well with all AM stations of interest.
- Page 8 Other Antenna Options The FM antennas and the AM antenna provided with the SoundWorks Radio 820HD will work well in most locations that get adequate FM and AM reception on conventional radio receivers. But there may an FM or AM station of interest where reception is marginal. To improve recep- tion in marginal cases, re-positioning the antenna or using a larger antenna (or both) are the only reliable ways of improving reception. In this section, some suggestions for improved, user-sup- plied FM and AM antennas are made. A Note About Connecting A User-Supplied FM Antenna The SoundWorks Radio FM antenna input is an “F” connector socket. For easy connection, an user supplied FM antenna or coax cable should have a push-on “F” connector plug. Most retail FM and TV antenna products come with a screw-on “F” connector plug. To use one of these products, obtain a “screw- on to push-on” adapter plug for an “F” connector This part is available at many Radio Shack and Walmart retail stores. Part numbers for this adapter: Radio Shack and 278-218 278-291 Philips USA PH61026 RCA VH68 Some antennas or coax cables will have a screw-on “F” con-...
- Page 9 Other Antenna Options (continued) The following suggestions must be supplied by the owner of the SoundWorks Radio 820HD. FM Reception: INDOOR FM ANTENNA OPTIONS: The common “rabbit ears” antenna (normally associated with TV reception) is a superb FM antenna. Placed on top of or behind a shelf or other large piece of furniture, this antenna provides great FM reception at a very low price. The advantages this antenna has compared to the supplied FM dipole are: An increase in signal strength when both arms are fully extended. Easier repositioning for different FM stations, especially if the antenna is used in the "one ear vertical" mode. The disadvantage of this antenna is its large size when both ears are fully extended. Look for a simple model with no extraneous loops, knobs or switches. These features don’t help FM reception and increase the price. Insist on an antenna with a “shielded” lead-in wire ter- minated by an “F” style connector plug. Do not choose a model with a flat lead wire terminated by two spade lugs. There is no reasonable way to attach spade lugs to a SoundWorks Radio 820HD. Good examples of the desired style antenna are the and RCA ANT-110 ANT-111 A typical “rabbit ear” style antenna, with “F” connector and User-Supplied Screw On to Push On adapter.
- Page 10 Additional Antenna Options If you live more than 20 miles from an FM transmitter of interest and you live in a wood frame building, consider placing or mounting an FM antenna in the top of the build- ing (attic or crawl space). Run additional coax lead-in wire to the radio. “Rabbit Ears” could be used for this purpose. It is also possible to use an FM antenna designed for outdoor use in an attic or crawl space. The performance will not be as good as outdoor mounting but it will still be much better than lower down in the residence. The best overall radio reception can be obtained from an FM antenna designed for outdoor use mounted on a roof- top. Some examples follow: Winegard PR-6000 (length 33”, width 65”), an directional antenna, good if all stations are in roughly the same direction. Antennacraft FMSS (max width 54”), an omnidirectional antenna, better if the stations of interest are located in widely different directions. Am Antenna Options The Wire Loop AM antenna included with the SoundWorks Radio 820HD is a precise match for the AM tuner. The only reliable way to boost AM signal strength is to place a tunable, sympathetic booster antenna next to the Wire Loop AM antenna. This type of booster antenna is passive. No wire connection is needed. The dial on the booster antenna should be adjusted for peak signal strength after tuning in an AM station. Two models of this kind of antenna are: Terk AM Advantage C. Crane Select-A-Tenna Regular Model...
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