Lets Talk LTE Interference
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signcarver
- Expert
- Posts: 9533
- Joined: Wed Jan 24, 2007 1:04 am
- Device ID: 10802091 131B34B7 13231F92 1070A18E 1073ED6F 15300C36
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Re: Lets Talk LTE Interference
I had purchased one many months ago (I want to say about a year) and another in October for the 4K. Both were labeled identically as 600MHz though I have been told they have since updated the label and that they were the same filter (supposedly didn't change internals, only label or documentation recently) and that it should not affect 35 and 36. I do admit 35 has always been a problem channel for me. I am 100 yards from 2 cell towers and power transfer station. I do believe the CM performed better than the 700MHz filters I have with my other channels. I am only going by signal strength (and actually not having issues watching) when I do the comparisons and 35 and 36 are already fairly weak for me (around -67dBm) that nearly any drop can cause problems.
Re: Lets Talk LTE Interference
Purchased mine in Oct. 29, 2020. It also has the 5-599 / 600-3000 label.
Though the third party frequency response measurements I've seen were done Feb. 12, 2020. -3.3 dB on channel 36. That's about the same as a two way splitter and similar to the third party measurement I've seen of the SD filter. Suggesting that the actual spec is more like 5-608 / 609-3000. Like the current label.
Oh, also I just remembered. The tech specs page on the CM3201 product page when I bought mine was Pass: 5-608 MHz; Block: 609-3000 MHz
Though the third party frequency response measurements I've seen were done Feb. 12, 2020. -3.3 dB on channel 36. That's about the same as a two way splitter and similar to the third party measurement I've seen of the SD filter. Suggesting that the actual spec is more like 5-608 / 609-3000. Like the current label.
Oh, also I just remembered. The tech specs page on the CM3201 product page when I bought mine was Pass: 5-608 MHz; Block: 609-3000 MHz
Last edited by NOYB on Tue Feb 16, 2021 5:24 pm, edited 2 times in total.
Re: Lets Talk LTE Interference
I concur - if you are seeing -3.3dB on channel 36 it will be a 5-608 filter.NOYB wrote: ↑Tue Feb 16, 2021 3:15 pm Purchased mine in Oct. 29, 2020. It also has the 5-599 / 600-3000 label.
Though the third party frequency response measurements I've seen were done Feb. 12, 2020. -3.3 dB on channel 36. That's about the same as a two way splitter and similar to the third party measurement I've seen of the SD filter. Suggesting that the actual spec is more like 5-608 / 609-3000. Like the current label.
Re: Lets Talk LTE Interference
I never liked the name "LTE Filter". Band-pass filter would be better.
I'd like to see a dual High VHF/ UHF band-pass filter marketed in the US. 174-216MHz and 470-608MHz pass built into one filter. That would cover most viewers in the US to block FM and LTE ranges.
I'd like to see a dual High VHF/ UHF band-pass filter marketed in the US. 174-216MHz and 470-608MHz pass built into one filter. That would cover most viewers in the US to block FM and LTE ranges.