Tri-Cities Scanner Frequencies
December 2009 Newsletter

Listen to the live scanner at
:
http://live.scannerfood.com

  • Live Scanner Feed Stats     
  • Winter Power Survival Kit
  • New Sleep Timer for Feeds
  • Wind Damage to local Towers

 

Well since the last newsletter, we've found a lot of new frequencies...
Here's a sample of what's new....

Output

Input

Tone

Description

152.4500

157.7100

 

Norton City Schools -Flag Rock

154.1150

150.8050

67.0

Mission Ambulance Service

154.2200

156.1500

118.8

Claiborne County VFD's

154.3100

 

d051

Dickenson County - Water Co Use

155.7825

153.8675

88.5

Russell Co EMS - Copper Ridge

155.8150

 

d071

Wyoming Co WV EMS

155.8350

 

88.5

Smyth Co Water Dept

159.4800

 

167.9

Virginia Dept Emergency Management

167.9750

 

 

Federal Interagency Mutual Aid

460.9250

465.9250

d032

Jan Care Amb Service - Beckley, WV

851.3125

 

 

Johnson City PD  Backup

852.5875

 

 

Johnson City FD  Backup

853.5875

 

 

Johnson City City Services Backup

868.3500

 

d205

TEMA Conventional 800 MHz


That's just a few... check out the Radio Phonebook (Link at the end of newsletter)


 


 

 

 

Live Scanner Feed sets Records

Wide Area Feed Stats / Max Number of Listeners per hour courtesy of RadioReference.com 

Time
Date

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

2009-12-21

5

4

3

2

3

3

4

6

9

14

16

14

15

14

13

9

6

9

10

13

12

8

7

2

2009-12-20

2

1

1

1

0

1

5

8

16

22

25

18

17

16

13

8

11

8

13

15

16

11

7

4

2009-12-19

37

31

25

21

22

28

26

26

37

37

44

41

33

32

37

19

17

22

23

19

15

17

17

8

2009-12-18

2

1

0

1

1

1

3

1

3

7

8

9

10

14

18

29

26

31

47

56

75

69

68

40


During the recent winter storm our live feeds were up and running and quite popular! With a max of 75 listeners during the worst of the storm listeners were assured they had real-time information when all other means were off the air. For awhile this feed was the number one feed in the world with more listeners than the long standing LAPD feed at radiorreference.com. We’ve received lots of feedback and thank-yous, in response we say a very big “You’re Welcome!” We’re not bragging we have the best feeds but the more widely known they are the more useful they become as well. Among many of our listeners were power utility coordinators and emergency services personnel, as well as news media. A good majority of the listeners were those using blackberries and mobile phones, when the power went out or when people became stranded this was the only way to get information. Cell phone service was jammed, and trees had played havoc on the local landlines as well.


Winter Power Survival Kit

Are you ready for power outages? Having the right equipment can be the difference in having a dead scanner in the dark and knowing exactly what’s happening outside and what to expect in the days, hours, and weeks to come.

If your scanner has the option of operating on 12VDC operate it directly from a battery, never use an inverter unless you have to. Inverters emit RFI (Radio Frequency Interference) and their non-true sine wave form of alternating current can be harmful to the charging circuitry in rechargeable scanners if used over time. 

Batteries:
Sealed lead-acid batteries like those in UPS battery backups, the larger variety are used in electric wheelchairs. These are maintenance free and safe to bring inside, they typically have a rating of 5-50 Amp/Hr’s. The smaller ones need to be charged with a low amperage trickle charger or they may be damaged, using older technology car battery chargers can charge the batteries too quickly and in term change the battery’s chemistry. These batteries are relatively safe for use indoors. With any battery of large capacity care must be exercised to not short circuit the terminals.

Spillable Marine / Automotive batteries are more widely available and inherit some potentially dangerous risks for indoor use. First off they may spill acid if tipped over as well as buildup and seepage around the terminals; this can permanently damage a wide variety of materials (carpet, flooring, clothes, etc) and may cause minor burns if contacted with damp skin. The sulfuric acid they contain is typically vented and extremely flammable, in the even of a power outage you’ll most likely have a candle or inverter near-by which either could cause a fire. Car batteries are typically only rated for short term capacity (cranking amps) and fall off over time providing little long term capacity.

Large Capacity Batteries like larger deep cycle marine/trolling batteries are the best capacity and usually very heavy, Some of the commonly called “Yuke” batteries are in excess of a hundred pounds but may yield as much as 500+ Amp/ Hrs. These can run an inverter for days. They require monitoring of the battery chemistry and must be carefully maintained. Luckily the disposal fee for these is so high they can sometimes be obtained for little to nothing, be wary though nothing is free without a reason. A used battery may not have the capacity it did new but a dead battery with a short in one the plates will not supply the needed voltage (if any) regardless of how long it’s charged.
 
Power Kits like those that augment a set of jumper cables and cigarette lighter jack are just a simple sealed battery with a handle and add-ons. They may be convenient but are usually more costly than just a stand-alone battery. Check on the back for their Amp/ Hr rating.

Inverters:
Small 50-200 Watt Inverters are great for small AC chargers such as cell phones and small electronics, don’t count on these to do much more however. They are inexpensive and typically have a cigarette-lighter style plug permanently affixed to one end.  Small and weak in the inverter family these gadgets are not useless, when paired with the new LED style lights they offer expandable, and efficient lighting. Compact fluorescent light blubs (CF) work great with the 100 watt and up models. Since CF bulbs require an initial surge to start up you should test before needed.  Another great use of these tiny inverters is Christmas LED lights; you can run them through the house and rest assured knowing their extremely minimal power consumption will allow them to be powered for a long time. While the LED style lights are more expensive they pay for themselves whether used in emergencies or up on the house or tree when the powers on. Some of the LED Christmas variety are also similar to a black light and make a super companion to nighttime fishing, making fishing line very visible and less cumbersome than mantle type gas lights.

Medium 250-700 Watt Inverters are good for small electronics such as TV,s and very small appliances, they usually will work with fans but are not designed to run motors. The lesser expensive versions emit AC power whose quality when measured with an oscilloscope is referred to as a modified or square sine wave.
Viewed under the scope the power wave is choppy and not a smooth alternation of 60 Hz.  While good for most electronics since they all operate on DC that is converted by a wall transformer, they poorly operate devices that require highly regulated energy. The larger end of the class of inverters can run power tools
and larger appliances.

Large 1000+ Watt Inverters are the top of the line choice,  they are fitted into RV’s and used aboard airplanes alike. The top end units emit a pure sine wave that is technically no different that the commercial AC you get from an outlet.  They are very expensive and require cooling fans to keep the components from overheating. They require very large cables and can pull anywhere from 50 to 200 Amps DC, draining all but the largest of batteries very quickly.  Most commonly used only when there is a method to recharge the battery such as an alternator.

Generators:
The best choice for long term outages, generators come in all shapes and sizes. The lesser expensive versions may not only just put out less wattage but also generate RFI as mentioned before. A helpful hint is to also check the runtime, having to fill up every 3 or 4 hours can be a pain. Take note that generators emit carbon monoxide and should never be used in an enclosed area.

 


Sleep Timer!

There’s now a sleep timer function for the web player version of both scanner feeds. Just click on the sleep timer button, select your feed and length of time before it stops. This was a feature on my original feed and we’re happy to have this function ability back!  Here’s a direct link


Wind Damage to local communications towers

The 250 ft tower at exit 5 lost a mid-section array, an approximately 100ft bundle of helix hard-line dangled in the wind during the highest gusts. Repairs were apparently made in the days following. We’re unsure of what providers were affected as a result of the damage.

The Virginia State Police lost a 2.2 GHz microwave dish due to the wind on their Whitetop Mountain facility, as a result linking to the tower on High Knob was lost for some time. State technicians could be heard in the days following the event attempting to reestablish the link between towers.

Also as a result of the more recent winter storm the ability for the state police dispatchers at Wytheville to hear mobile units from the Whitetop site was similarly lost as well.  Traffic on December 23rd was heard stating they were going to shut down the generator for awhile to do maintenance.

Most other county’s radio infrastructure was affected at sometime during the storm with either issues with generators coming online or loss of hardwired connections to the facilities down via trees on the telephone and fiber lines.



That’s all for this month, sorry for the short newsletter. Most of the mountains have been impassable so listening expeditions have been minimal.

Merry Christmas and Happy New Year!



 

 

 

 

 

Need the Professional Version of local frequencies?

Download the Radio Phonebook (Updated 12/23/2009) 

Stats / Last Months Stats

Frequencies:1444 up from 1411
Unit Numbers:2980 up from 2928

General Area Covered

 

 

 

 

 

 


Here's what we're working on...

Local Business Radios
Field Gear Pictures
Homemade Antennas
New Trunked Systems
Washington County TN
Digital Talkgroups
Pager effects Pt2
Interference
Interoperability

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That's it for now, Happy Scanning!


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kf4uel@yahoo.com



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