The upload speed depends a lot more on the antenna gain and VSWR than the download speed, i.e. how well and efficiently it focuses the signal transmission towards the mast. The dish is unable to focus the low frequencies on the low bands, so with band 20 the LHG performs no better than an omni-directional antenna, whereas the Iskra and other LPDA antennas offer better gain. If the mast was closer where I could use band 1 or 3 as the primary band, the LHG would make a dramatic improvement on the upload speed also.
Based on the above reading, it's probably not worth upgrading unless really need the additional 20Mbps. With such as a strong RSRP, the upload speed is likely as good as you'll get as the upload speed usually does not improve much further once the RSRP reaches around -85dBm to -90dBm from my experience.
Based on the above reading, it's probably not worth upgrading unless really need the additional 20Mbps. With such as a strong RSRP, the upload speed is likely as good as you'll get as the upload speed usually does not improve much further once the RSRP reaches around -85dBm to -90dBm from my experience.