Question about Sangean ATS 909 AM/FM/SW Radio

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External antenna on connecting the supplied external antenna i find a reduction in overall performance ie reduced signal strength, the signal on sw is now stronger on the whip which is the reverse of how my 909 usually behaves i use the external alot which is out along the guttering of my home,yes exposed to the elements......however i have noticed lately thatĀ  a slight movement of the connector to the radio, from the external, the signal intermittently dropped? has my external died? or is it the am ant in socket on the radio, would appreciate some help i know i can pick up an external here in uk for around 20.00 pounds,but would that be twenty wasted if it turns out to be the 909 itself?? happy swl steve

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You can get good assistance at the DX 398 Group at Yahoo! The DX 398 is the same radio as the ATS-909. It was the name used by Radio Shack when they marketed it. Here's the URL for the DX398 group: They will definately welcome your questions and will likely provide some valuable answers.

Posted on Jan 06, 2008


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Posted on Jan 02, 2017


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HG8245A VS HG8245: The same Wifi Signal Strength?

Probably not...... With an External Antenna, there is nothing to stop the signal, whereas with the Internal, the Signal has to penetrate the case, before it goes to wherever...... I suggest using the External for the extra distance.... With 2 way radio the clearer the area yo have the Antenna, the greater the distance.... same here.... just using different Frequencies.

May 08, 2014 | Computers & Internet

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Expand coverage range

Wireless Protocols A wireless router's range is determined by what 802.11 protocol is used, the overall strength of the router itself, and the nature of the obstructions and interference in the area.
The 802.11g protocol supports speeds up to 56Mbps. Its biggest drawback is that this protocol operates on the same band (2.4GHz) as many other devices, such as microwaves and cordless phones. Because of this, in all likelihood your wireless connection will be negatively impacted by interference from other devices.
The 802.11n protocol operates on the 5GHz band and is advertised to support speeds up to 300Mbps. Actual speeds, however, are much less. To take advantage of this protocol, all connected devices must be 802.11n compliant, and you should be aware that the 5GHz band, while allowing for less interference than the 2.4GHz band, will result in reduced signal range.
Wireless Signal Strength and Speed
Signal strength depends on the distance, the number of obstacles, and the type of obstacles your signal encounters. Signal strength stability is affected by physical changes in the environment, such as movement of the computer, people movement, and electrical devices. In fact, I completely lose my signal if I have my laptop in the kitchen when the microwave is running. Troubleshooting your wireless router can be very difficult because there are so many constantly changing variables that affect wireless signal quality. Consider the following to improve your wireless router signal and speed:
Position your router in a better location. Try to locate it in the center of the house. Elevate the router in the room and keep it away from other electronic devices and metal objects. Since cordless phones can adversely affect router performance, position the router as far away from phones as possible. The fewer obstacles in the way, the better chance your computer has of obtaining a quality signal.
Change the Wi-Fi Channel. Signal quality can be adversely affected if too many people use the same channel. See if switching channels makes any difference. You can use channels 1 through 11, but for best performance, use 1, 6, or 11.
Update firmware or drivers. Check your router's web site to ensure the latest firmware has been installed on the router. Also, make sure the latest driver has been installed. I noticed a slight increase in signal strength when I updated my driver.
Replace your antenna. Replacing your antenna with a high gain antenna may improve your signal quality. There was no noticeable improvement when I tried this option.
Replace your adapter. Check to make sure your computer's internal adapter isn't defective. If necessary, you can either replace the internal adapter or purchase an USB adapter, The USB adapter includes an external antenna.
Implement an additional access point or repeater. In theory, additional access points and repeaters will extend the distance of the signal. There are mixed reviews as to how effective these are, but they are worth a try if other options are unsuccessful.
There are several applications designed to monitor your wireless router performance. However, one way to obtain a rough estimate of your router's performance is to hold a laptop near the router. Access the wireless utility software on the laptop and note the readout, which should be excellent or close to 100%. Carry the laptop out of the room, noting any changes in signal strength. If the signal strength drops to poor or a very low percentage signal reading, then the router may be performing properly but obstacles, either structural or electrical, may be interfering with your router's broadcast signal. The results of your evaluations will help you determine if wireless signal quality issues exist in certain locations in your house.
What Worked for Me
There are several possible ways to improve wireless router signal quality in your home. Try the least expensive solutions first. Otherwise, you may be needlessly spending money for equipment that doesn't solve your specific issue. In my particular case, I was able to obtain some slight improvement by updating software and making some system improvements. Ultimately, I was able to get the signal strength and speed I wanted by using two routers on opposite ends of the house. My primary router, which is connected to the modem, is on the first floor. My secondary router is on the second floor and is connected to the primary router by an ethernet cable. This was the best and least expensive solution that provided me with very good coverage inside and outside my house.
*Although Belkin has discontinued the F5D8231-4 model, it is available from some online companies.

Nov 17, 2012 | TP-LINK TD-W8901G Router

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What are the benefits of organic dog food?

Organic foods report a boost in their energy levels.Their complexions improve and rashes clear up.They catch fewer colds, suffer fewer allergies, and recover quicker from illnesses.
The health benefits of eating organic seem to last long-term.
1. Reduction of skin ailments and allergies.
2. Better overall health and stronger immunity.
3. Fewer digestive disorders.
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Jul 18, 2012 | Dogs

1 Answer

My brother gave me the receiver, it is a AV AVR 1905 Denon do not have the antenna so all I get is static.

Test and confirm if the amplifier is working with an imput source. If the fault is only a loss of FM/AM signals then try and connect an external antennae based on the signal strength in your area to confirm if there is a fault in the radio sectiion. You can conect a set of wires to the FM loop connection and keep it up , if the signal strength is very good it will give you the signal after a search. Memorise, set an external antennae with a proper setting to get the best clarity.

Sep 30, 2011 | Audio Players & Recorders

1 Answer

26" ILO digital T.V . won't pick up digital signals w/digital antanae.\r\nusing air in setup

So called digital antennas are generally a gimmick. The important factor to receiving stations is the antenna position and strength relative to the incoming signal. (Digital signals are either enough for the tuner or you get "no signal".)

Look at or to find out what stations are likely to be received in your area and the direction to rotate the antenna; plug your address in the search area. Antennaweb is very conservative in its channel list even though it assumes an external antenna. Tvfool gives a list of the channels you should get with various antennas (labelled by color). This is a standard label that will be on the antenna specs or box (at least on good antennas). Tall buildings and trees in the area can reduce the channels you receive.

Adding an amplifier may help you gain signal strength for borderline stations (or if you split the signal to several devices).

I hope this helps.

Cindy Wells
(My house has an external antenna with an amplifier/splitter. Antennaweb suggested that we'd only get the stations from ~10 miles away. We get those stations and the ones from ~30 miles away with the antenna rotated for the further stations.)

Sep 11, 2010 | iLO 2600 Television

2 Answers

Garmin etrex legend and external antennas

Check the Garmin website for external antennaes. I have this problem too, and get around it by placing the unit on my dashboard under the windshield. Never had a problem getting a signal there.

Aug 07, 2009 | Garmin eTrex Legend GPS Receiver

1 Answer

I get no stations on my tv

Use an Antenna that Provides Good Reception of All Channels
  • Most existing antennas used by consumers will provide good reception of DTV signals. (Before making any changes, try your existing antenna first to see of it allows you to receive all the stations you normally watch.)
  • For watching DTV signals, you will need an antenna that provides good reception of both VHF signals (channels 2-13) and UHF signals (channels 14-51) to reliably receive all of the digital signals broadcast in your area.
  • Many antennas are designed only for reception of either VHF or UHF signals (but not both). For example, the commonly used “rabbit ears” indoor antenna is only suitable for receiving VHF signals. To receive UHF signals, an indoor antenna should also include a wire loop or other feature for reception in that band.
  • The reception capabilities of TV antennas also vary considerably, so be sure to talk to retail consultants and look at information on the packaging and/or the Internet to make sure that any new antenna you may choose provides good reception of both VHF and UHF channels. In addition, if you use an indoor antenna and receive signals on VHF channels, you may need to use an antenna with amplification.
  • Many antennas currently being sold as “HDTV Antennas,” perform best at receiving UHF signals; some of these models state that they provide reception of signals on channels 7-13 but actually perform less well receiving those channels. If you obtain one of these antennas, be sure it provides good reception of all the VHF channels as well as the UHF channels.
  • To check for the DTV signals that are available at your location, use the DTV Reception Maps available at
Check Your Connections
  • Check that your digital-to-analog converter box or digital television is connected properly. Make sure your antenna is connected to the antenna input of your digital-to-analog converter box or digital television. If using a digital-to-analog converter box, also ensure that the antenna output of your converter box is connected to the antenna input of your analog TV. Refer to the owner’s manuals of your components if you are unsure of the proper connections.
  • Ensure that your components are plugged in and have their power turned on.
  • If you have a digital-to-analog converter box, tune your analog TV to channel 3. You should see a set-up menu or picture displayed on your TV screen. If you do not see a set-up menu or picture, tune your TV to channel 4. If you still do not see a set-up menu or picture, recheck your connections.
Perform a Channel Scan
  • Digital-to-analog converter boxes and digital televisions have a button, usually on the remote control, that is labeled “set-up” or “menu” or some similar term. Press that button to access the set-up menu. Using the directional arrow buttons on your remote, scroll to the option that allows you to perform a “channel scan.” The channel scan will automatically search for digital broadcast channels that are available in your area. Consult the owner’s manual of your digital-to-analog converter box or digital television for detailed instructions on how to perform a channel scan for your device.
  • Once the channel scan is complete, you will be able to tune to the digital channels received by your antenna. You should perform a channel scan periodically to check whether additional digital channels have become available.
Adjust Your Antenna
  • Small adjustments to your antenna can make a big difference in the number of digital channels you can receive. If you have an indoor antenna, try elevating it and moving it closer to an exterior wall of your home. After adjusting your antenna, perform another channel scan to see if your reception is improved.
  • While adjusting your antenna, it may be helpful to access the “signal strength meter” on your digital-to-analog converter box or digital television to determine whether your adjustments are improving the signals’ strength. The signal strength meter is usually accessed through the menu feature on your remote control. Refer to the owner’s manual of your device for detailed instructions on how to access its signal strength meter. Remember to do another channel scan after you have adjusted your antenna.
  • Television stations broadcasting in digital use both the VHF band (channels 2-13) and UHF band (channels 14-51). Many indoor antennas use “rabbit ears” for the VHF band and a “loop” or “bow-tie” antenna for the UHF band. Make sure you are using an antenna that covers both the VHF and UHF bands and have connected it properly.
If You are Still Having Difficulty:
  • Until June 12, 2009, some stations will be operating at reduced power levels. If you are not receiving certain digital TV stations, this does not necessarily mean there is a problem with your antenna or digital-to-analog converter box or digital television. Check with the TV station to find out whether they are planning changes that will improve reception.
  • When an analog TV signal is weak or receives interference, static, snow, and distortion will often appear on the screen. Digital broadcasting will provide a clear picture; however, if the signal falls below a certain minimum strength, the picture can disappear. This “cliff effect” means that if you watch analog TV stations that have static and distortion, you may have to adjust or upgrade your antenna system.
  • Simple indoor antennas provide minimal performance that may not be suitable for your location. If you are unable to obtain satisfactory DTV reception with your current indoor antenna, you may wish to obtain an indoor antenna that includes features for better reception of UHF signals, as well as VHF, and/or an amplifier to boost the received signal (often referred to as an active indoor antenna).
  • Generally, an outdoor antenna will get better reception than an indoor antenna. However, the performance of outdoor antennas can degrade over time due to exposure to the weather. If you are having problems, check for loose or corroded wiring, broken antenna elements and that the antenna is pointed in the right direction.
  • Try to keep the length of wire between your antenna and digital-to-analog converter box or digital television as short as possible for best reception.
  • “Splitters” that are used to connect a single antenna to multiple digital-to-analog converter boxes or digital televisions reduce the amount of signal available to each device. If you are having problems, check whether reception is improved without the splitter. In some cases an “active” splitter that includes an amplifier can solve the problem.
  • If you are near a station’s broadcast tower, reception of that station, as well as other stations, can be impeded by strong signal “overload.” Consider using an “attenuator” or removing amplifiers to improve your reception.
  • If you decide to replace or upgrade your indoor or outdoor antenna, many types are available from electronics retail stores at a variety of prices. Websites such as provide information on the locations of broadcast towers and the types of outdoor antennas appropriate for the stations you wish to receive. If you need assistance with upgrading your antenna system, check with a local antenna retailer or antenna installer.
  • To check for the DTV signals that are available at your location, use the DTV Reception Maps available at
Hope it may helps:


Jun 15, 2009 | Insignia Digital-to-Analog Converter for...

1 Answer


You may need a stronger antenna or your neighbor may have only a VHF antenna and most of the digital channels are being broadcast over UHf. . First, though, check the antenna connection as if they are dirty, they may be lowering the signal strength (these are the connections at the antenna). Check for the angel to put the tv antenna at to pick up the most channels. Internal antenna work very poorly. I have been having no problem with my outdoor UHF/VHF antenna, it picks up the same amount of channels in analog and digital.

Oct 05, 2008 | Philips Magnavox 20MS233S 20" TV

1 Answer

Wireless Internet not getting enought signal strength

Yea there are high gain antennas. Here are some on a site i would recommend

The more you spend the more purchase you will get. Go for one with a high dBi. Also be aware that you may want an omni-directional one if you want the signal to be boosted in all areas

May 05, 2008 | Computers & Internet

3 Answers

Excessive static on AM stations. Waves in and out. Not so on car radio. Is there an antenna to eliminate this?

Turn on the radio and turn the AM/SW BAND switch to the AM position. MW appears in the display. Use the outer ‘fast’ tuning knob to find stations, fine tuning with the inner ‘slow’ knob
when needed.

• If there is interference from adjacent stations, place the BAND WIDTH control in the NARROW position. If there is no interference, leave it in the WIDE position.

• If there is excess background noise, turn on
the SW LPF switch, which may minimize the noise.

• If a station is so strong that audio distortion occurs, reduce the gain level with the AM/SW RF GAIN control knob by turning it counterclockwise.

• The telescopic antenna does not have to be extended for AM reception. The radio has an internal, directional, ferrite-bar antenna for AM reception.

• To optimize AM reception, swivel the radio until maximum signal strength is achieved.

All of that being said: It's very tough nowadays to receive AM in this 2008 electronic world. If your able install a longwire SW antenna outside, and have access to a good earth ground, you can boost the AM signals and beat the noise being generated all around you.

Jan 08, 2008 | Grundig S350 AM/FM/SW Radio

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