There is No LO on twinhan card

[gloworm]

This needs to be said. As a twinhan card owner. I thank all for past and future post from all. But all advice tells you to set the "LO" this and that. there is no "LO" on the twinhan card software. it is LNB 1 and LNB 2 NO "LO" so please say in your helping others... put freq xxx into lnb1 or lnb2 not "LO"

yes every receiver on the planet has "LO" but not twinhan.

speaking for myself. i don't know what "LO" is.... twinhan is the only receiver I have ever used.

[rainman]

some receivers ask for lo and hi freq numbers on universal lnb's.

[starman]

LOF = Local Oscillator Frequency. You are correct, however the Twinhan software has spaces for lof, they name them lnb1 and lnb2 which is incorrect, it should read lof1 and lof2. I've e-mailed the company in the past, no reply. I understand how it can be very confusing. Maybe if enough people e-mail????

[wejones]

Originally Posted by gloworm

This needs to be said. As a twinhan card owner. I thank all for past and future post from all. But all advice tells you to set the "LO" this and that. there is no "LO" on the twinhan card software. it is LNB 1 and LNB 2 NO "LO" so please say in your helping others... put freq xxx into lnb1 or lnb2 not "LO"

yes every receiver on the planet has "LO" but not twinhan.

speaking for myself. i don't know what "LO" is.... twinhan is the only receiver I have ever used.

The other response explained what LO stood for, but I think it needs to be explained further that it is the Local Oscillating frequency of the LNB. Ie these frequencies are not used in the receivers at all, they are the frequency that the LNB mixes with the downlink frequency to downconvert a band from C or Ku band down to the L band intermediate frequency that the receiver actually uses. Basically the software uses the LO freq to know what freq to tune to. Some receiver software does't even use LO freq at all, but just uses the IF freq. Ie on one receiver I have, if I want to receive a transponder at say 11800 MHz, I have to input 1050 MHz, ie since I use an LNB with a LO freq of 10750 on Ku, 11800-10750=1050). And even on some software written for the Twinhan, you can just use zero for the LO freq, and enter the IF freq directly. These receivers where you enter LO freq do so just so you don't have to do the calculation yourself.
But back to your post, while I understand that it is confusing, it is still correct that we refer to LO freq, because that is in fact the parameter that you are selecting, whether or not the Twinhan software actually calls it or not. Ie it is the Twinhan software or documentation that is misleading, not the people on this list. Perhaps we could use another sentence to explain the Twinhan software, but personally I don't even recommend using the Twinhan software. Personally I use TSREADER with either VLC or a Roku, and virtually never use the Twinhan software, so I don't keep up with what Twinhan is calling things in their current software.
But use of the term LO is correct, and I don't think there should be a problem with using terminology which is correct. The worst thing that can happen is for people to learn what the parameters actually refer to.

[starman]

Wejones, very nice explaination, all the local oscillator, intermediate frequency references in your post took me back to ham radio lessons I"d forgotten how some of that stuff related, thanks for the refresher.

[gloworm]

vlc .... what is that

Originally Posted by wejones

The other response explained what LO stood for, but I think it needs to be explained further that it is the Local Oscillating frequency of the LNB. Ie these frequencies are not used in the receivers at all, they are the frequency that the LNB mixes with the downlink frequency to downconvert a band from C or Ku band down to the L band intermediate frequency that the receiver actually uses. Basically the software uses the LO freq to know what freq to tune to. Some receiver software does't even use LO freq at all, but just uses the IF freq. Ie on one receiver I have, if I want to receive a transponder at say 11800 MHz, I have to input 1050 MHz, ie since I use an LNB with a LO freq of 10750 on Ku, 11800-10750=1050). And even on some software written for the Twinhan, you can just use zero for the LO freq, and enter the IF freq directly. These receivers where you enter LO freq do so just so you don't have to do the calculation yourself.
But back to your post, while I understand that it is confusing, it is still correct that we refer to LO freq, because that is in fact the parameter that you are selecting, whether or not the Twinhan software actually calls it or not. Ie it is the Twinhan software or documentation that is misleading, not the people on this list. Perhaps we could use another sentence to explain the Twinhan software, but personally I don't even recommend using the Twinhan software. Personally I use TSREADER with either VLC or a Roku, and virtually never use the Twinhan software, so I don't keep up with what Twinhan is calling things in their current software.
But use of the term LO is correct, and I don't think there should be a problem with using terminology which is correct. The worst thing that can happen is for people to learn what the parameters actually refer to.

[wejones]

Originally Posted by gloworm

vlc .... what is that
.........

http://www.videolan.org/
VLC is a free program that can play video on your computer, or it can stream it over a network. Many people with the Twinhan card use a program called TSREADER. The full version of TSREADER costs money, but there is a free evaluation version. TSREADER can stream a video program from the Twinhan card to the VLC program, and VLC then plays the video on the computer. TSREADER can also stream the video across a local network so that it can be played on another computer in your house.
I have my Twinhan card on a computer in my basement. I almost NEVER use the Twinhan software, but instead I use TSREADER to stream video over my network so that I can view it either on my laptop upstairs or on my TV via a Roku HD1000.
Even if you don't use VLC with the Twinhan, it is recommended as it is free, always improving, and plays more types of video files than any other program I've seen. Even with a file, you can tell VLC to stream the file over your network to be played by another copy of VLC on another computer, and it can transcode the video on the fly. A really powerful program.