High Performance CATV Headend Agile RF Modulator 16 Channels

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PRODUCTS DETAILS

Basic Info.

Model NO.
AH1916AM
Output Level
113dbv
Size
19" 3u
Installation
Rack Mounted
a/V Ratio
-10dB -20dB
Power Supply
110-245V AC
Video Input Level
0.6 1.5vp-P
Video Snr
50dB
Audio Snr
-60dB
Transport Package
Standard Export Carton
Specification
Grade A
Trademark
SOFTEL
Origin
China Mainland
HS Code
85176229
Production Capacity
5000PCS/Month

Product Description

 
AH1916AM AGILE
16 IN 1HEADEND USER MANUAL


INTRODUCTION

The AH1916AM is a 4RU rack mounted chassis that allows for installation of up to 16 pieces high quality SAW filtered frequency agile modulators covering 860MHz. Built-in active combiner eliminates unnecessary cabling and potential connection problem and ensures high output level. Low out-of-band noise makes it ideal in adjacent channel headend.

FEATURES
  1. Full frequency agility allows the rapid creation of channel lineups
  2. Each channel is completely independent. Channel configuration is flexible
  3. Two cooling fans for heat-sinking prolong the service life
  4. None-volatile memory ensures channel programming remains after power loss
  5. Two-digit LED display provides quick channel identification
  6. Available in NTSC or PAL configurations

SPECIFICATIONS
Chassis
RF Frequency Range 45 ~ 860 MHz
Output Connector F Connector
Output Level 105 dBµV (Adj.)
Test Point -20 dB
Isolation Port to Port ≥ 35 dB
Return Loss ≥ 12 dB
Gain + 8 dB
GENERAL Modulator Capacity 16
Input Voltage Range 110V or 220V
Cooling Fan 2
Consumption 70W (Fully Loaded)
Dimension 42 * 17 *20 cm
Net Weight 9 KG (Fully Loaded)
Shipping Weight 3.7 KG (Chassis Only)
10 KG ( Fully Loaded)
Carton Size 53 * 30 * 24 cm
Modulator Card
RF Output Frequency 45 ~ 860 MHz any channel
Output Level 103 dBµV (Adj.)
Output Connector F Connector
A / V Ratio -11 ~ -18 dB (Adj.)
Frequency Stability ±10KHz
Video Input Level 0.6-1.5Vp-p (87.5% Modulation)
Video Input Connector Yellow RCA
Audio Input Level 1Vp-p (25KHz Dev.)
Audio Input Connector White RCA
GENERAL Voltage DC 5V
High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels

High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels High Performance CATV Headend Agile RF Modulator 16 Channels

WARNING:

For the protection of your equipment and its proper working is necessary to connect the
AH1916AM to a ground connection. 
UNPACKING AND HANDLING
A full set AH1916AM is shipped with all equipment assembled, wired, factory tested, and then packed in
an appropriate shipping container. Ensure that all accessories are removed from the container and packing
material before they are discarded.
INSPECTION
Inspect the front and rear of the equipment for shipping damage. Make sure the equipment is clean, and no
wire, cables, or connectors are broken, damaged or loose.
DAMAGE IN SHIPMENT
Should any damage be discovered after unpacking the unit, immediately file a claim with the carrier.
A full report of the damage shall be made and a copy forwarded to vendor.
PRECAUTIONS
PRECAUTIONS REQUIREMENTS
Avoid heat buildup Allow rack space (1'')between powered headend product in the equipment
Ensure easy access to rack wiring Allow a minimum of 18inches behind the equipment rack
Facilitate servicing and maintenance Allow a minimum of 36'' of clearance in front of the equipment rack
Avoid direct heating or air conditioning If unavoidable, use deflector plates
AC power source outlets Locate equipment near sufficient outlets to provide power for test equipment and power tools
Rack support Make certain rack supports are sufficiently rigid to support racks
Building leakage Beware of dripping water onto equipment from leaky roofs, waveguide roof entries, and cold water pipe condensations

QUICK INSTALLAION
The AH1916AM is designed for indoor 19'' rack. Make sure a space is left between modulators for air circulation. To prevent electric shock, never remove the ground pin. Insure that electrical input cables entering the building be connected to the building ground as close to the entry point as possible.
  1. Feed in the Audio and Video connectors before turn on the power
  2. Warm up the modulator and check the picture and audio
  3. Set up the channels you want if the factory settings are not what you want
ADJUSTMENT

All SOUKA modulators are heat cycled at the factory and final adjustment are made with the units hot. Thus, allow a 20 minutes warmup before attempting any adjustments. You will need a signal level meter and a TV set.
  1. Connect the video and audio cable from your source to the respective connector on the modulator. If you have several AH1916AM, please connect the RF OUTPUT to the proper combiner. Levels can be read at the test point output of combiner output in the rear panel.
  2. The AV ADJ. should always be between -15dB to -17dB below the VIDEO ADJ.. Once this ratio is set it will track with the VIDEO ADJ. (All are proper set at the factory.)
  3. AUDIO and VIDEO modulation levels are set at the factory for plus or minus 25KHz deviation and 87.5% depth of modulation respectively. Although proper test equipment should be used, minor adjustment can be made utilizing a TV set.
    3.1  Connect the TV set to the final output test point so that its signal level input from the modulator is   about +69dBµV. If the colors look bright and there is sufficient sound without audio buzz, leave the modulation adjustment alone. If there is occasional audio buzz, turn modulation control down slowly counter-clockwise until the audio is clean.
    3.2  If the modulator picture is dark, raise the V ADJ. control slowly until the picture just becomes over bright and begins to distort. Lower the control about 1/8 turn from this point.
    3.3  If the modulator audio is low, try and set TV audio level utilizing an off air signal. Subjectively match this level utilizing the A ADJ. control. Check that all audio levels are about the same when switching channels.

COMMON TROUBLESHOOTING

1. Herringbone in TV

Disconnect modulator from local channels and check modulated channel. If there is programming move the modulated channel. If the picture is snowy, use a low pass filter to block noise or data coming in from cable.
2. Horizontal Bars Rolling Through TV Picture

Check for a component of the system that is introducing DC power into the system. Disconnect that component and check TV. If the hum bars stop, use a DC blocker down stream from that component to block the power from getting to the TVs.
 If the rolling is only on the modulated channels, check for impedance mismatch by adjusting the video level adjustment pot.
3. Vertical Bars Rolling Through TV Picture

Check for AC power getting on the line. Use a ground breaker in line.
4. Ghost on the Picture

Check for low quality combiner/ splitter in system. Replace with high isolation combiner/splitter.
Check the type of coax used in system. Inadequate shielding in coax will cause ghosting.
5. Snowy Picture
Verify the modulator is set up for the proper TV channel band.
Verify the TV is set up on the proper TV channel band.
6. Black and White Lines on one Local Channel 

Move modulated channel up to a new channel. If problem persists and all of the inputs of a multiple input modulator are not being used, check default channels on modulator to see if default channel is set to the same channel that the problem channel is.
7. Modulated Picture is Too Bright or Washed out
   Adjust video level adjustment potentiometer on the modulator front panel or rear panel of chassis.
   If using a camera, check positioning of the lens to be sure it's not aimed at the sun or a reflection.
   Adjust camera lens.
8. Modulated Picture is Too Dark
  If the baseband video is being split, you might require a amplifier
   Try to adjust video level potentiometer on the front panel of modulator or rear panel of chassis
   If the video source is not being split, check input source directly into a TV
   Adjust the video level adjustment pot on the chassis of the set top units to the proper brightness.
9. Noise on the Audio
   Insert grounding block in line and ground coax cable before it enters the TV
   Use professional grade audio/video interconnect between the components and the modulator
10. Audio is Too Low 
  Use a Y connector to combiner the left and right audio before entering the modulator

WARRANTY ( 1 YEAR)
SOFTEL'S Electronics equipment has been thoroughly tested and found to be in proper operating condition when shipped from the factory and is warranted to be free from defects in materials or workmanship that may develop within one year of the date of purchase. SOFTEL agrees to remedy such or furnish a new part, or at its option an entire unit, or any part of a unit that disclosed such defect, provided that the unit or part is returned to SOFTEL or SOFTEL authorized service facility according to the terms listed below.
Prior authorization with a return authorization number issued by SOFTEL or its representative is required for all returns. The purchaser shall be responsible for all freight charges on shipment to SOFTEL unless otherwise authorized. Charges to return a unit or part to purchaser will be paid by SOFTEL. Claim for damage in shipment to the purchaser must be filed by the purchaser with the carrier in accordance with the carrier's regulations.
SOFTEL shall not be responsible for the shipping charge if the returned unit turns out to be flawless.

A Return Material Authorization (RMA) Number is required on all products returned to SOFTEL. Regardless if the product is being returned for repair or credit. Before returning product, please contact the SOFTEL sale who you contact with.
Buyer : RMA Number:
Mode Number Products ID Number Problem
     
     
     
     
If there's not enough space in this form, please attach a separate sheet of paper.



Thanks for using our products.
For more product info, please visit our website:
http://wsoftel-optic.en.made-in-china.com

APPENDIX I
PAL  B/G Channel and Frequency Table     
Audio Carrier 5.5MHz
  Channel Video
Freq.		     Channel Video
Freq.		     Channel Video
Freq.
1 E2 48.25 37 S21 303.25 73 E36 591.25
2 E3 55.25 38 S22 311.25 74 E37 599.25
3 E4 62.25 39 S23 319.25 75 E38 607.25
4 X 69.25 40 S24 327.25 76 E39 615.25
5 Y 76.25 41 S25 335.25 77 E40 623.25
6 Z 83.25 42 S26 343.25 78 E41 631.25
7 Z1 90.25 43 S27 351.25 79 E42 639.25
8 Z2 97.25 44 S28 359.25 80 E43 647.25
9 S1 105.25 45 S29 367.25 81 E44 655.25
10 S2 112.25 46 S30 375.25 82 E45 663.25
11 S3 119.25 47 S31 383.25 83 E46 671.25
12 S4 126.25 48 S32 391.25 84 E47 679.25
13 S5 133.25 49 S33 399.25 85 E48 687.25
14 S6 140.25 50 S34 407.25 86 E49 695.25
15 S7 147.25 51 S35 415.25 87 E50 703.25
16 S8 154.25 52 S36 423.25 88 E51 711.25
17 S9 161.25 53 S37 431.25 89 E52 719.25
18 S10 168.25 54 S38 439.25 90 E53 727.25
19 E5 175.25 55 S39 447.25 91 E54 735.25
20 E6 182.25 56 S40 455.25 92 E55 743.25
21 E7 189.25 57 S41 463.25 93 E56 751.25
22 E8 196.25 58 E21 471.25 94 E57 759.25
23 E9 203.25 59 E22 479.25 95 E58 767.25
24 E10 210.25 60 E23 487.25 96 E59 775.25
25 E11 217.25 61 E24 495.25 97 E60 783.25
26 E12 224.25 62 E25 503.25 98 E61 791.25
27 S11 231.25 63 E26 511.25 99 E62 799.25
28 S12 238.25 64 E27 519.25 100 E63 807.25
29 S13 245.25 65 E28 527.25 101 E64 815.25
30 S14 252.25 66 E29 535.25 102 E65 823.25
31 S15 259.25 67 E30 543.25 103 E66 831.25
32 S16 266.25 68 E31 551.25 104 E67 839.25
33 S17 273.25 69 E32 559.25 105 E68 847.25
34 S18 280.25 70 E33 567.25 106 E69 855.25
35 S19 287.25 71 E34 575.25 107 E70 863.25
36 S20 294.25 72 E35 583.25 108 E71 871.25




APPENDIX II
NTSC Channel and Frequency Table     
Audio Carrier 4.5MHz
NO. CH. Video
Freq.		   NO. CH. Video
Freq.		   NO. CH. Video
Freq.		   NO. CH. Video
Freq.
1 2 55.25 35 31 265.25 69 65 469.25 103 104 673.25
2 3 61.25 36 32 271.25 70 66 475.25 104 105 679.25
3 4 67.25 37 33 277.25 71 67 481.25 105 106 685.25
4 5 77.25 38 34 283.25 72 68 487.25 106 107 691.25
5 6 83.25 39 35 289.25 73 69 493.25 107 108 697.25
6 95 91.25 40 36 295.25 74 70 499.25 108 109 703.25
7 96 97.25 41 37 301.25 75 71 505.25 109 110 709.25
8 97 103.25 42 38 307.25 76 72 511.25 110 111 715.25
9 98 109.25 43 39 313.25 77 73 517.25 111 112 721.25
10 99 115.25 44 40 319.25 78 74 523.25 112 113 727.25
11 14 121.25 45 41 325.25 79 75 529.25 113 114 733.25
12 15 127.25 46 42 331.25 80 76 535.25 114 115 739.25
13 16 133.25 47 43 337.25 81 77 541.25 115 116 745.25
14 17 139.25 48 44 343.25 82 78 547.25 116 117 751.25
15 18 145.25 49 45 349.25 83 79 553.25 117 118 757.25
16 19 151.25 50 46 355.25 84 80 559.25 118 119 763.25
17 20 157.25 51 47 361.25 85 81 565.25 119 120 769.25
18 21 163.25 52 48 367.25 86 82 571.25 120 121 775.25
19 22 169.25 53 49 373.25 87 83 577.25 121 122 781.25
20 7 175.25 54 50 379.25 88 84 583.25 122 123 787.25
21 8 181.25 55 51 385.25 89 85 589.25 123 124 793.25
22 9 187.25 56 52 391.25 90 86 595.25 124 125 799.25
23 10 193.25 57 53 397.25 91 87 601.25 125 126 805.25
24 11 199.25 58 54 403.25 92 88 607.25 126 127 811.25
25 12 205.25 59 55 409.25 93 89 613.25 127 128 817.25
26 13 211.25 60 56 415.25 94 90 619.25 128 129 823.25
27 23 217.25 61 57 421.25 95 91 625.25 129 130 829.25
28 24 223.25 62 58 427.25 96 92 631.25 130 131 835.25
29 25 229.25 63 59 433.25 97 93 637.25 131 132 841.25
30 26 235.25 64 60 439.25 98 94 643.25 132 133 847.25
31 27 241.25 65 61 445.25 99 100 649.25 133 134 853.25
32 28 247.25 66 62 451.25 100 101 655.25 134 135 859.25
33 29 253.25 67 63 457.25 101 102 661.25        
34 30 259.25 68 64 463.25 102 103 667.25        
 
PAL  B/G Channel and Frequency Table     
  CH. DIS     CH. DIS     CH. DIS
1 E02 02   22 E08 08   43 S27 2.7
2 E03 03   23 E09 09   44 S28 2.8
3 E04 04   24 E10 10   45 S29 2.9
4 X     25 E11 11   46 S30 3.0
5 Y Y   26 E12 12   47 S31 3.1
6 Z 2   27 S11 1.1   48 S32 3.2
7 Z01     28 S12 1.2   49 S33 3.3
8 Z02     29 S13 1.3   50 S34 3.4
9 S01 0.1   30 S14 1.4   51 S35 3.5
10 S02 0.2   31 S15 1.5   52 S36 3.6
11 S03 0.3   32 S16 1.6   53 S37 3.7
12 S04 0.4   33 S17 1.7   54 S38 3.8
13 S05 0.5   34 S18 1.8   55 S39 3.9
14 S06 0.6   35 S19 1.9   56 S40 4.0
15 S07 0.7   36 S20 2.0   57 S41 4.1
16 S08 0.8   37 S21 2.1   58 E21 21
17 S09 0.9   38 S22 2.2   59 E22 22
18 S10 1.0   39 S23 2.3   60 E23 23
19 E05 05   40 S24 2.4   61 E24 24
20 E06 06   41 S25 2.5   62 E25 25
21 E07 07   42 S26 2.3   63 E26 26
                   
 
 
PAL  B/G Channel and Frequency Table     
  CH. DIS     CH. DIS     CH. DIS
64 E27 27   79 E42 42   94 E57 57
65 E28 28   80 E43 43   95 E58 58
66 E29 29   81 E44 44   96 E59 59
67 E30 30   82 E45 45   97 E60 60
68 E31 31   83 E46 46   98 E61 61
69 E32 32   84 E47 47   99 E62 62
70 E33 33   85 E48 48   100 E63 63
71 E34 34   86 E49 49   101 E64 64
72 E35 35   87 E50 50   102 E65 65
73 E36 36   88 E51 51   103 E66 66
74 E37 37   89 E52 52   104 E67 67
75 E38 38   90 E53 53   105 E68 68
76 E39 39   91 E54 54   106 E69 69
77 E40 40   92 E55 55   107 E70 70
78 E41 41   93 E56 56   108 E71 71






 
NTSC Channel and Frequency Table    
NO. CH. Video
Freq.		   NO. CH. DIS   NO. CH. DIS   NO. CH. DIS
1 2 02 21 8 8 41 37 37 61 57 57
2 3 03 22 9 9 42 38 38 62 58 58
3 4 04 23 10 10 43 39 39 63 59 59
4 5 05 24 11 11 44 40 40 64 60 60
5 6 06 25 12 12 45 41 41 65 61 61
6 95 95 26 13 13 46 42 42 66 62 62
7 96 96 27 23 23 47 43 43 67 63 63
8 97 97 28 24 24 48 44 44 68 64 64
9 98 98 29 25 25 49 45 45 69 65 65
10 99 99 30 26 26 50 46 46 70 66 66
11 14 14 31 27 27 51 47 47 71 67 67
12 15 15 32 28 28 52 48 48 72 68 68
13 16 16 33 29 29 53 49 49 73 69 69
14 17 17 34 30 30 54 50 50 74 70 70
15 18 18 35 31 31 55 51 51 75 71 71
16 19 19 36 32 32 56 52 52 76 72 72
17 20 20 37 33 33 57 53 53 77 73 73
18 21 21 38 34 34 58 54 54 78 74 74
19 22 22 39 35 35 59 55 55 79 75 75
20 7 7 40 36 36 60 56 56 80 76 76
 
NTSC Channel and Frequency Table    
NO. CH. DIS   NO. CH. DIS   NO. CH. DIS   NO. CH. DIS
81 77 77   95 91 91   109 110 1.0   123 124 2.4
82 78 78   96 92 92   110 111 1.1   124 125 2.5
83 79 79   97 93 93   111 112 1.2   125 126 2.6
84 80 80   98 94 94   112 113 1.3   126 127 2.7
85 81 81   99 100 0.0   113 114 1.4   127 128 2.8
86 82 82   100 101 0.1   114 115 1.5   128 129 2.9
87 83 83   101 102 0.2   115 116 1.6   129 130 3.0
88 84 84   102 103 0.3   116 117 1.7   130 131 3.1
89 85 85   103 104 0.4   117 118 1.8   131 132 3.2
90 86 86   104 105 0.5   118 119 1.9   132 133 3.3
91 87 87   105 106 0.6   119 120 2.0   133 134 3.4
92 88 88   106 107 0.7   120 121 2.1   134 135 3.5
93 89 89   107 108 0.8   121 122 2.2        
94 90 90   108 109 0.9   122 123 2.3        
High Performance CATV Headend Agile RF Modulator 16 Channels
High Performance CATV Headend Agile RF Modulator 16 Channels
High Performance CATV Headend Agile RF Modulator 16 Channels
FAQ

1. What are the payment terms that you support?

Usually, we accept T/T, PayPal, Western Union, and Alibaba Trade Assurance. You can select the terms of payment which is more convenient for you.


2. What about the lead time?

Usually, if there's stock, we ship the goods within 3~5 working days after the deposit is confirmed. If it is out of stock, the lead time depends.


3. How about the shipping?

When the package is small, we normally choose FedEx, DHL, TNT, and UPS, and so on, while the goods have high weight and volume, we suggest using air or sea shipment.


4. How can I place an order?

(1) Negotiation is agreed upon for the product price and specifications.

(2) Proforma invoice will be sent for confirmation.

(3) After the agreement on the proforma invoice, the customer makes the deposit.

(4) Manufacturing will be started as soon as the payment is confirmed by our bank.

(5) Ship out the goods within the agreed delivery deadline.


5. Can you do OEM for us?

Yes. If there is a certain order quantity, we can do OEM including printing, logo, and customized model for you.


6. How about the Warranty?

There are 12 months for the warranty.

While the warranty is not responsible for those broken by violence or updated with other brands.

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