geoffrey
Regular Member
- Joined
- Aug 17, 2005
- Messages
- 135
- Reaction score
- 22
- Points
- 18
- Age
- 81
- Location
- Zichron Yaacov
- My Satellite Setup
- 2.4M ChannelMaster Offset with Smart Titanium TQS LNB. LG SMART TV with SuperTrack V-Box 2 on ChannelMaster 1.2M Offset. TBS5925 tuner with EBSPro on Windows 10 laptop. Satlook Digital NIT.
- My Location
- Israel
My last post came about because I could not get my Horizon HDSM to lock on anything at 28 east. There was no available file for the strongest transponder (2C) and nothing for 2B. The Horizon people sent me a file for Channel 4+1 on 2A North which locked a Satlook and a Skybox but not the HDSM - this was for 12480Ghz V.
Eventually Horizon let me have their SatEdit program (which I think is something that should be available as standard with the meter). With this its possible to define your own transponder frequencies and AFC ranges.
I then realized that the frequencies that Horizon were using for the Astra transponders did not correspond to the lock frequencies found by a Satlook Spectrum analyser.
If the frequencies found by the Satlook were used to define new Horizon files the meter worked fine - it will lock down to 3.3dB C/N and locks some transponders that the Satlook will not lock (ie Channel 4 on 12168v).
I then found that the frequencies shown by the Satlook differed from the published ones because my Invacom Quad LNB seems to have a LO which is offset by a few Mhz.
And its not just one LNB; I tried an Invacom Single,an Inverto Twin and an Invacom Single polarity with the following results for the locking frequencies indicated on a Satlook for Channel 5 on 10964H.
Invacom Quad QDF-031 : 10967
Inverto Twin 0.3dB : 10964
Invacom SPV-3SM : 10964
Invacom SNF-031 : 10967
The standard settings for the Horizon HDSM gives an AFC range of +-3Mhz which was just insufficient to cope with the Invacom Quad.
I hope this is of interest to someone - get the SatEdit file from Horizon technical support if you have similar problems. Trouble is that you need a Spectrum Analyser to first find the proper lock frequencies - maybe the new version of the Horizon with a spectrum display will help. This is the manual http://www.horizonhge.com/product_sheets/HDSM_USB_Manual.pdf
With this HDSM USB PLUS you can define one custom carrier with all the variations you can set with the SatEdit program; the spectrum display may be good enough to find the locking frequency.
Eventually Horizon let me have their SatEdit program (which I think is something that should be available as standard with the meter). With this its possible to define your own transponder frequencies and AFC ranges.
I then realized that the frequencies that Horizon were using for the Astra transponders did not correspond to the lock frequencies found by a Satlook Spectrum analyser.
If the frequencies found by the Satlook were used to define new Horizon files the meter worked fine - it will lock down to 3.3dB C/N and locks some transponders that the Satlook will not lock (ie Channel 4 on 12168v).
I then found that the frequencies shown by the Satlook differed from the published ones because my Invacom Quad LNB seems to have a LO which is offset by a few Mhz.
And its not just one LNB; I tried an Invacom Single,an Inverto Twin and an Invacom Single polarity with the following results for the locking frequencies indicated on a Satlook for Channel 5 on 10964H.
Invacom Quad QDF-031 : 10967
Inverto Twin 0.3dB : 10964
Invacom SPV-3SM : 10964
Invacom SNF-031 : 10967
The standard settings for the Horizon HDSM gives an AFC range of +-3Mhz which was just insufficient to cope with the Invacom Quad.
I hope this is of interest to someone - get the SatEdit file from Horizon technical support if you have similar problems. Trouble is that you need a Spectrum Analyser to first find the proper lock frequencies - maybe the new version of the Horizon with a spectrum display will help. This is the manual http://www.horizonhge.com/product_sheets/HDSM_USB_Manual.pdf
With this HDSM USB PLUS you can define one custom carrier with all the variations you can set with the SatEdit program; the spectrum display may be good enough to find the locking frequency.