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lylej
December 27th, 2000, 04:49 PM
can anybody out there help me increase signal strength on even transponders. I have great strength on odd numbers.

zrxk01
December 27th, 2000, 05:00 PM
Originally posted by lylej
can anybody out there help me increase signal strength on even transponders. I have great strength on odd numbers.


WHY????

lylej
December 27th, 2000, 05:14 PM
A bunch of channels are missing including most of the HBO, showtime etc. I live in northern canada and am wondering if a larger dish may help, or there may be an easier fix

lylej
December 27th, 2000, 06:02 PM
Thanks cellular, I live in Weagamow Lake ontario, it is about 300 miles north of Kenora On. I have already rigged a 5ft old mesh dish to work, sometimes I get some signal on Xpndr 2 which does bring in chanel 101 but most of the other even #s are at a 0 signal strength

VOLSkipper
December 28th, 2000, 11:01 PM
Make sure that your dish is mounted level. Switching from even to odd channels you switch from horizontal to vertical polarity if the dish is not level this could be the problem. Put a level on the mounting pole and check it for level all the way around. Once it's level aim the dish for max signal strength. You may also want to check the alignment of your LNB to make sure it's not tilted to one side in the rig you made.

If that doesn't help chech with another IRD and see if the problem is the same if so it's not the IRD and you may need to look at the LNB.

tweeter
December 29th, 2000, 12:00 PM
I had, or should say still have, the same 'problem'. One of the mods explained about the signal polarity coming from odd and even transponders and not to worry about it...so I don't worry about it!
All my odd xponders are in the mid 90s signal strength and all of the evens range from 60-83. Even if all xponders were in the mid 90s, you can only select one at a time, so I just change to another odd number and ignore the evens. Guess if it ain't broke...

zrxk01
December 29th, 2000, 04:44 PM
As long as one transponder ( whether even or odd) is in the 90's wouldn't you still be able to receive all the available channels?

lylej
December 29th, 2000, 08:18 PM
I just purchased from our freindly radio shack store, a signal amplifier, am I barking up the wrong tree???. If it does work, I will post to let you guys know that it does, or doesnt.

cUl8tr
December 30th, 2000, 04:37 PM
Sometimes larger is better, thats what I had to do in the Cayman Islands. Could not even find the sat with an 18" dish. Comes in great with a 36". YMMV

smack
December 31st, 2000, 03:28 AM
IT could just be lossy cable or a bad connection. How long are your cable runs from the dish to the multiswitch and/or IRDs? Maybe moving up to a better cable will get the voltage up enough at the LNB to trigger the polarity to change. Or if you have a flakey connector, you could lose enough voltage to the LNB to cause it to not switch.

If you're using amplifiers, the signal report may be artificially high....take out the amps and see what the base reading is.

If you do have a long cable run situation, you may be able to use a "voltage injector" to power the LNBs, then amp signal coming back (it sounds like the signal you have is very good, especially given you location).

If you have access to a volt meter, set it to DC volts....20-25 volt range, and see what you get for switching voltage AT THE LNB. With the IRD "Searching for Satellite Signal," you should see the voltage sweep between ~13VDC and ~18VDC. If the highest reading you get is low-to-mid 17VDC, then a voltage injector (like a Channel Master #8002IFD) would probably help you.


Hope this helps, Happy New Year!


Scott

RJ
December 31st, 2000, 01:45 PM
Here's a MAP OF TRANSPONDERS. Odd Transponders are circular left polrization, even transponders are circular right. This offers a better adjacent channel interferance reduction, but a slight loss in signal

1. 112 151 185 208 265 327 329 620 638 812 814 822

2. 116 142 150 229 231 273 282 358 530

3. 110 113 152 202 296 521 623 641 808 811 841 863

4. 254 260 264 350 351 366 370 917 936 938

5. 106 115 117 368 382 526 624 626 651 838 839 840 860 904

6. 207 252 399 523 532 607

7. 108 134 183 200 240 278 380 594 608 802 816 817 818 903

8. 263 313 909 910 911 912 914 915 937

9. 114 121 290 355 522 606 645 647 856 857 858 864

10. 128 140 178 205 212 269 333 354 528 601 609 611 700

11. 100 145 201 244 325 362 388 593 605 629 819 823 824 865 905

12. 291 339 550 916 920 923 924 925 926

13. 120 243 331 386 630 754 821 825 828 861 906

14. 130 165 170 233 300 527 596 800

15. 109 125 353 529 632 649 829 833 842 862

16. 292 317 372 402 595 918 919 9921 935

17. 138 168 249 280 301 634 639 652 804 805 830 831

18. 944 945 946 947 952 974 975 976 977

19. 122 148 180 242 315 335 637 813 834 836 843

20. 307 404 598 953 954 979 980 981 983

21. 135 299 311 375 384 643 720 806 859 889 902

22. 171 191 250 253 600 613 702 951

23. 111 118 190 204 220 309 356 533 603 610 636 699 753

24. 502 507 514 537 757 958 992 993 994 995

25. 119 203 218 246 248 377 653 654 735 901

26. 505 508 547 941 942 959 970 971 972 973

27. 105 107 155 160 245 247 390 520 628 900

28. 503 513 539 540 940 943 960 961 962 963

29. 182 206 256 360 531 621

30. 504 512 544 549 929 930 988 989 990 991

31. 258 364 381 383 387 389 597 955 956 964 965 967 968

32. 501 538 542 927 928 984 985 986 987

NEV1
January 5th, 2001, 09:52 PM
I have a very similar problem . Most times of the day i get very little signal from the evens. Early morning or late evening seems to be the best time for reception. Still i only get a signal on about 5 or 6 of the evens while my signal strength is in the 90s on the odds. I live in northeastern Alberta and i'm usind an old solid 6ft can-com dish. Any suggestions to improve would be greatly appreciated. NEV1

dssnowalittle
January 14th, 2001, 03:40 PM
To all in the North... The further to the north you go the weaker the signal.. You must increase the size of the dish, the further you go the bigger the dish must go...
I install them in my area all the time with the 18", and have had no problems, but if you go 150 miles north, people have to install the old Bellvu 24" dish, which seems to do the job fine... But if you go another 150-200 miles north of that, they have to use the Star-ch, 1 meter, dish... and so on, apparently there is a point, that is to far north, in which it is extremely hard to get the dish to pick up the signal... But I have heard of places using the 6' fibreglass dish, and are receiving very good signal... It is best to look around the naughborhood and ask others what they have found to work in that area...

smack
January 14th, 2001, 08:25 PM
The bigger dishes have a narower field of view, so you may have to do some fine tuning to the aim. According to other posts, aim it, check all of the transponders, if they're close, you good, if some are much stronger than the others, tweak the dish a little, check again...etc untill you have a fairly even signal across the board.

Also mentioned in other posts: Because of the Earth's "wobble" some transponders will come in stronger at different times of the day (...and some will be weaker at different times of the day).

If it helps, think of it as "Gardening for signal...."..

Good Luck

Scott