Todays deals on Ratio Speed?

DOUBLE WORM GEAR SPEED REDUCING GEARBOX, ,3000-1 RATIO $9,000.00

NEW WINSMITH 11HM PLANETARY SPEED REDUCER 60:80 RATIO 4832 OUTPUT TORQUE $2,164.99

NEW BOSTON GEAR F732-60-B5-G SPEED REDUCER 60:1 RATIO 1.52HP $879.99

NEW EMERSON MORSE 262UL20 SINGLE REDUCTION SPEED REDUCER 20:1 RATIO 2.09HP $769.99

DODGE SPEED REDUCER TDT 1 NO.195 RATIO 25.64.1 $700.00

NEW LEESON IRONMAN W8260149.00 SPEED REDUCER 20:1 RATIO 2.41HP BMQ826-20-56-L $639.99

BROWNING SPEED REDUCER # CBN3363SB3AP TORQUE: 6100 IN-LBS RATIO: 160:1 NEW! $599.50

NEW BOSTON GEAR F71820B5G SPEED REDUCER 20:1 RATIO 511 INLB OUTPUT TORQUE $649.99

NEW BOSTON GEAR F721-30-B5-G SPEED GEAR REDUCER .81HP INPUT 80:1 RATIO 680LB OUT $599.99

DODGE SPEED REDUCER RATIO 11.4:1 #7628696001GL TORQUE 4686 IN-LBS NEW $499.50

WINSMITH SPEED REDUCER MODEL 935CDTK RATIO 60 NIB $450.00

MORSE RAIDER 175UH20 SINGLE REDUCTION SPEED REDUCER XD1155C06N 20:1 RATIO $524.99

NEW BOSTON GEAR F713-60-B5-J SPEED REDUCER .167 HP 60:1 RATIO 1.0 SF 1750 RPM $499.99

Wittenstein Alpha SP075S-MF1-3 High Speed Gear Head Reducer 3:1 Ratio New $515.00

TORQUBE 40:1 RATIO GEAR SPEED REDUCER *NEW IN A BOX* $500.00

NEW BOSTON GEAR F71350B5G WORM GEAR SPEED REDUCER .19 HP 50:1 RATIO 238 OUPUT L $469.99

BALDOR SPEED REDUCER STAINLESS STEEL RATIO 10:1 #GR0286C002 1177 IN-LBS $399.50

Winsmith Gear Speed Ratio Reducer 6MSF $385.00

NEW BOSTON GEAR F71010KVB4G6 WORM GEAR SPEED REDUCER 0.44HP 10:1 RATIO $429.99

DAYTON 2Z151D SPEED REDUCER 50:1 RATIO 0.5HP ***NIB*** $399.00

Wittenstein Alpha SP060S-MF1-5 High Speed Gear Head Reducer 5:1 Ratio New $438.00

NEW BOSTON GEAR F71810B5G WORM GEAR SPEED REDUCER 1.43 HP 460 OUPUT 10:1 RATIO $399.99

NEW BOSTON GEAR F71330B5J WORM GEAR SPEED REDUCER .32 HP 264 OUTPUT 30:1 RATIO $399.99

NEW BOSTON GEAR F713-30-B5-G WORM GEAR SPEED REDUCER .32 HP 264 OUT. 30:1 RATIO $399.99

Wittenstein Alpha SP060S-MF1-5 5:1 Ratio High Speed Gear Head Reducer New $414.00

New DODGE APG 140-D-M-2-A-I-14.0-A1 Gearbox Speed Reducer 14:1 Ratio 3.03 HP $412.99

WINSMITH 924MDTD SPEED REDUCER 300:1 RATIO NEW IN BOX!! $375.00

DODGE TIGEAR MR94667 Y KA SPEED GEAR REDUCER 10:1 RATIO 3.17 HP $324.99

SEW EURODRIVE SPEED REDUCER #KA67TAM182-KS 3050 IN-LBS 30.22:1 RATIO NEW! $399.50

DODGE RELIANCE SPEED REDUCER # SC262B025NL1 RATIO 25:1 4462 IN-LBS NEW! $299.50

WINSMITH 1H SPEED REDUCER 9.40 RATIO NEW CONDITION IN BOX $375.00

NEW BOSTON GEAR F713-20S-B5-G6-D0R SPEED GEAR REDUCER 20:1 RATIO .450HP $369.99

BOSTON GEAR SPEED REDUCER RATIO 54.28:1 #F843B-56S-B5 TORQUE: 1396 IN-LBS $349.50

BOSTON GEAR F71840B5G SPEED REDUCER 40:1 RATIO $349.99

BALDOR MOTOR WITH DAYTON SPEED REDUCER 1/2 HP MOTOR 1725 RPM DRIVE RATIO 12.5 :1 $379.00

Wittenstein Alpha SP060S-MF1-10 10:1 Ratio High Speed Gear Head Reducer New $364.00

NEW BOSTON GEAR F718-25-B5-J SPEED REDUCER 25:1 RATIO .700 HP $339.99

DODGE SPEED REDUCER RATIO 25:1 #35Q25R14 TORQUE 3586 IN-LBS NEW $259.50

NEW BOSTON GEAR F710-50-B4-G SPEED GEAR REDUCER 50:1 RATIO .09HP INPUT 120LB OUT $339.99

NEW BOSTON GEAR F710-10-B4-J GEAR SPEED REDUCER .37HP INPUT 123LB OUT 10:1 RATIO $339.99

TIGEAR MR94669 J RX SPEED REDUCER 1.77HP RATIO 1:20 $350.00

RELIANCE ELECTRIC MASTER XL SPEED REDUCER Ratio 60 $350.00

GROVE GEAR FLEXALINE HMQ1206-1 SPEED REDUCER 15:1 RATIO 1.579HP $324.99

STERLING ELECTRIC WORM SPEED REDUCER MODEL # S24PQ256C56C RATIO 2 TO 1 $349.00

NEW HUB CITY MODEL 185 WORM GEAR SPEED REDUCER RATIO 60:1 $325.00

NOS BOSTON GEAR R1214 1:1 RATIO 3-WAY SPEED REDUCER 1150-RPM, $325.00

Morse Raider Speed Reducer 15 to 1 Ratio $339.99

NEW GROVE GEAR FLEXALINE BMQ213-2 WORM GEAR SPEED REDUCER 30:1 RATIO 56C .328HP $324.99

NEW HUB CITY 0220-61020-212 SPEED REDUCER MODEL 212 RATIO 10:1 STYLE A $319.99

HUB CITY Industrial speed Reducer MO.AD3 ratio 1:1 $336.50

38202 New-No Box, Boston Gear F713-15-B5-G Speed Reducer 0.56Hp , Ratio 15:1 $335.07

STOBER Comtrac Adjustable Speed Drive C102F0420MR142/050 Ratio 41.6:1 $300.00

NEW GROVE GEAR FLEXALINE TXQ2-56/56C HELICAL SPEED REDUCER 5:1 RATIO 2.3HP $299.99

Boston Gear Speed Reducer Ratio 30:1 No. F724-30-B5-J $299.00

Hub City 0221-14467 , model 325- 15:1 ratio Gear Box Speed Reducer: style 0008 $260.00

WINSMITH 926 SPEED REDUCER 926MDB RATIO:40 $300.00

HUB CITY Industrial speed Reducer MO.AD3 ratio 2:1 $300.00

Dodge Tigear2 Speed Reducer Size 176 Input Q, Ratio 10, Max HP 1.68 NEW!!! $275.00

Reliance Electric Master XL Speed Reducer, Ratio 30, Size 56WM21A $245.00

NEW Dodge Tigear 2 26Q12R14 C-Face Speed Gear Reducer 12:1 Ratio 4HP $289.99

BOSTON GEAR F713-50-B5-G SPEED REDUCER, 50 TO 1 RATIO $259.99

# Dodge Tigear 2 17Q15L56 Right Angle Speed Reducer. 15:1 Ratio. Lot: L. $259.99

NEW DODGE MASTER XL SPEED REDUCER 10 TO 1 RATIO .41HP $224.99

HUBCITY 214 Speed Gear Reducer 60:1 Ratio NEW HUB CITY $225.00

NEW MORSE 126RF3056L0 SPEED REDUCER 30 TO 1 RATIO 1.48 HP $199.99

NEW DAYTON 4RP37 SPEED REDUCER 40 TO 1 RATIO, 0.75HP $219.99

GROVE GEAR SPEED REDUCER RATIO 25:1 # HMQ224-1 TORQUE: 1124 IN-LBS NEW $199.50

NEW DODGE MASTER XL SPEED REDUCER 10 TO 1 RATIO ..40HP $224.99

WINSMITH 917MDND SPEED REDUCER 75:1 RATIO 0.321HP ***NNB*** $199.00

BOSTON GEAR SPEED REDUCER RATIO 10.11:1 #F832B-10S-B5 TORQUE: 576 IN-LBS $199.50

LEESON SPEED REDUCER WASHDOWN RATIO 60:1 #W8263010.0 TORQUE: 1343 IN-LBS $189.50

STEEL BELT 80-DB WORM SPEED REDUCER RATIO 100 $230.00

BALDOR SPEED REDUCER RATIO 10:1 #GF1026CG GR0135C004 1177 IN-LBS TORQUE NEW! $199.50

Browning emerson Worm Gear Speed Reducer #237C1 LR10E 8612, 10-1 RATIO, NEW? $199.00

DODGE SPEED REDUCER RATIO 7.5:1 #HB382CN56C TORQUE: 545IN-LBS $186.50

WINSMITH SPEED REDUCER RATIO 60:1 MODEL# 926MDT 1193 IN-LBS TORQUE NEW! $199.50

MORSE SPEED REDUCER I26-30-L, 30 TO 1 RATIO, 1.49 HP $189.99

ELECTRA GEAR SPEED REDUCER # 7711422-R1 RATIO 50:1 1843 IN-LBS NEW! $199.50

SM CYCLO H3095HS SPEED REDUCER 43 TO 1 RATIO .61HP $185.00

HUB CITY 0220-61204-214 SPEED REDUCER 20:1 RATIO $195.00

BOSTON GEAR F710-40-B5-J SPEED REDUCER 40:1 RATIO .12HP $195.00

HUB CITY 0220-61207-214 SPEED REDUCER 40:1 RATIO 56C $195.00

NEW HYTROL SPEED REDUCER H4C RATIO 10 TO 1 1″ SHAFT $189.00

BOSTON GEAR 700 SERIES SPEED REDUCER RATIO:15 718-15-J $199.99

Dayton Speed Reducer Gear Drive Model 4Z302C ratio 40:1 $205.00

Baldor Dodge Tigear-2 Right Angle Speed Gear Reducer 5:1 Ratio #15Q05L56 56C $179.99

NEW ALPHA LP 070-M02-50-111-000 SERVO MOTOR SPEED REDUCER RATIO:50 10000964 $199.99

SEW EURODRIVE SPEED REDUCER INPUT RPM 1750 RATIO 84:1 $199.00

ELECTRA GEAR SPEED REDUCER # L400M20RFX RATIO 20:1 $199.00

OHIO GEAR SPEED REDUCER 40-A RATIO MODEL# B300 $199.00

RED LION CONTROLS 5162040 SPEED RATIO INDICATOR ***NNB*** $183.00

NEW Hub City 0220-62104-264 Gearbox Speed Reducer 30:1 Ratio Style-B 9″ $196.99

NIB Boston Gear Speed Reducer #F713-50-B5-G Ratio 50 TA $179.10

LEESON SPEED REDUCER RATIO 40:1 #W8240056 TORQUE: 1101 IN-LBS NEW $159.50

GAM Gear EPL-H-084 Speed Reducer 7:1 Ratio Gearhead Inline Planetary Precision $169.00

GROVE GEAR SPEED REDUCER RATIO 30:1 MODEL# 30VCF-4 TORQUE:1800 IN-LBS $130.50

GROVE GEAR SPEED REDUCER RATIO 20:1 # VHMQ218-3 TORQUE: 487 IN-LBS NEW $149.50

NEW STERLING SPEED REDUCER 20-1 RATIO 5PQ87S020 4.2 HP $120.00

Browning Right Angle Worm Gear Speed Reducer 40:1 Ratio $125.00

RELIANCE MASTER XL SPEED REDUCER ID MO55869007ST SIZE 56SMIA RATIO 5 : 1 $179.00

Ratio Speed Questions

Is the Signal to Noise Ratio (SNR) of Your Cable Modem Slowing Down Your Internet Speed?

If you are having trouble with your cable provided Internet circuit, your first step is to determine whether the problem is in the Internet Service Provider’s (ISP) network or specific to your location.  The best tool for determining the location of Internet trouble is an IP Packet Loss and Delay Test Tool.  I’ve included some information on how to find and use one of these tools at the end of this article.

Let’s assume that you have used an IP Packet Loss Tool and found either significant latency or packet loss happening at your site.  In other words, the problem is specific to your location.  What should you do next? Check the signal-to-noise ratio (SNR or S/N) on the cable modem.

Signal-to-Noise Ratio

According to Wikipedia.org, “signal-to-noise ratio (SNR) is a measure used in science and engineering to quantify how much a signal has been corrupted by noise.  It is defined as the ratio of signal power to the noise power corrupting the signal.  A ratio higher than 1:1 indicates more signal than noise.”

An everyday example of SNR is listening to music in your car over road noise or other people talking.  The louder the radio compared to the other noise in the car, the more clearly you hear the music.  The same is true for your cable modem “hearing” the signal transporting your Internet traffic on your cable system.  When the signal is loud compared to the noise, Internet communication happens at a faster speed with less packet loss.  When the signal is not loud enough compared to the noise, speeds slow down causing latency.  Packets may be lost, creating retransmissions of data packets and trouble with realtime applications such as Voice over Internet Protocol (VoIP) used by Vonage, Skype and Hosted PBX providers. In fact, any realtime application will suffer including video streaming from Netflix, Blockbust and others or any type of online gaming.

Good SNR Values for Cable Modems

SNR values for cable modems are measured separately for downstream and upstream signals.  Downstream is the signal transmitting from the cable provider or ISP to the cable modem. Upstream is the signal from the cable modem back to the provider.
 
Each cable modem is a little different but typical good values are:

Downstream SNR – 30:1 or more
Downstream Power – -8 to 8db (decibels)
Upstream SNR – 29:1 or more
Upstream Power – less than 55db

Determining the Values for Your Cable Modem

Many cable modem configuration pages can be viewed at the internal address of 192.168.100.1.  Refer to http://broadband.modemhelp.net/cable_modem_info/index.shtml and look up the specific make and model of your cable modem. This website will give the modem configuration page address of the cable modem and the SNR values for optimal performance. Just plug the address in your web browser and the page should come up. As you check your cable modem’s SNR values, remember that these values can fluctuate. If you are experiencing intermittent problems, check the values when experiencing trouble and compare to the values when all is well.

Improving the Cable Modem’s SNR Values

Cabling and connectors are the most common cause of poor SNR values.  Inspect all cabling and connectors in line with the cable modem.  There should not be any cable splices and the modem should be connected to the primary splitter entering your facility. In addition, the coax cable should not have any sharp bends. Repair any obvious problems and check the SNR values again.

If no obvious problems exist or repairs have not improved the SNR values, try moving the cable modem to the most immediate entry point in the facility.  Attach it to the main feed, if possible.  If the SNR values are good, then the problem is cabling in the facility.  If the SNR values are still unacceptable, the problem is in the cable modem, outside cabling or equipment of the cable provider.  You can try changing the cable modem, if you feel comfortable with that task.  Otherwise, it is time to get the ISP/cable provider involved.  You can report your findings of the SNR values.

About the Author

Finding the Source of Internet Problems

Before examining SNR values, the first step in troubleshooting Internet problems is always determining the location of the trouble. Use a Packet Loss Test Tool to quickly determine whether the problem is happening at your location or within the ISP. The packet loss tool at the link above is free as it is 100% sponsored by HostMyCalls. HostMyCalls uses this tool to help its customers with their Internet connections. It is one of the top reasons why HostMyCalls delivers the best Hosted PBX voice quality of all Hosted VoIP Providers on the Internet.

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