Hi,
I’m trying to extend the Wi-Fi HaLow link of an EZVIZ EP7 video intercom (European version) installed in Spain.
The problem is not normal 2.4/5 GHz Wi-Fi. The indoor monitor communicates directly with the outdoor doorbell using IEEE 802.11ah / Wi-Fi HaLow.
What we have confirmed so far:
European band: 865–867 MHz
Channel bandwidth: 2 MHz
Security: WPA/WPA2 / WPA-PSK/WPA2-PSK
EZVIZ calls the connection “AP pairing”
The indoor monitor and outdoor unit are already paired
EZVIZ told us that the pairing implementation is proprietary
The internal SSID and PSK/password are not available to the user
The EP7 is not Wi-Fi CERTIFIED HaLow, although it uses IEEE 802.11ah
The distance is roughly 60 m, but there are stone walls, elevation difference, a terrace/floor structure and other obstacles
Neither the indoor monitor nor the outdoor unit can realistically be moved to a better position
The link sometimes works surprisingly well even when the monitor reports zero bars, but at other times live view fails with “network unstable”, so the RF margin is clearly too small.
Ideally I want to place one intermediate device approximately halfway between the two EZVIZ units:
EZVIZ indoor monitor → HaLow → repeater/relay → HaLow → EZVIZ outdoor unit
without modifying either EZVIZ device.
I have already investigated several options.
AsiaRF ARFHL-ORL: AsiaRF engineering confirmed to me that their EU HaLow products use 1 MHz channels, and their relay cannot transparently repeat an existing third-party HaLow link without configuration; it requires knowing/configuring the SSID. Therefore it does not fit this case.
ANJIELO: their documentation is more interesting because it mentions APSTA (“Repeater mode”), 1/2/4/8 MHz bandwidths, WPA-PSK and Quick Pairing / AT+PAIR. I have contacted them to ask whether APSTA/Quick Pairing can interoperate with a third-party HaLow AP and somehow obtain credentials when the SSID/PSK are unknown.
I am also investigating Newracom NRC7394, LILYGO T-HaLow-RJ45 and professional RF off-air/on-frequency repeaters.
So my main questions are:
Is there any 802.11ah repeater/relay that can transparently extend a third-party HaLow link without knowing the original SSID/PSK?
Is there any HaLow implementation supporting something like transparent L2 relay, WDS, 4-address mode or MAC proxying that could work in this situation?
Could a repeater using the same SSID/security parameters work if it were able to learn them automatically through pairing?
If this is impossible at the Wi-Fi layer, does anyone know of a legal EU 865–867 MHz off-air RF repeater capable of transparently repeating a 2 MHz OFDM/TDD 802.11ah signal, without demodulating the Wi-Fi network?
I am specifically trying to avoid replacing antennas, modifying the EZVIZ hardware or running coax/Ethernet cables through walls.
If anyone has practical experience with Wi-Fi HaLow repeaters, Morse Micro, Newracom, ANJIELO, AsiaRF or transparent sub-GHz RF repeaters, I would really appreciate any advice.
Thanks.
Additional question:
Does IEEE 802.11ah S1G Relay require explicit support from the endpoint devices, or can it operate transparently between two third-party HaLow devices that do not themselves support S1G Relay?
In my case, the two EZVIZ devices are already paired with each other and cannot be reconfigured.