i should clarify a generic radio repeater that inst meshtastic but is able to repeat LORA signal
Well, the numbers I gave would be the same since those Meshtastic “modes” are just profiles for different LoRa settings, and the same LoRa Settings + frequency slot still applies (Meshtastic just runs on top of that).
I think what you’re looking for is a dumb signal repeater, but I’m not super knowledgeable of the pros/cons/legality of those for the entire 915 MHz band. You’d be repeating anything in that frequency range, not just LoRa. And those also repeat noise the same as signal. Basically, it could end up making things worse in the long run by introducing noise.
Probably best to just coordinate with or start a community mesh group and settle on a specific frequency and LoRa settings.

























HeltecV3 is probably the lowest-cost point of entry. It doesn’t have GPS or battery (though it has a battery connector and charger built in if you want to add a battery later). Some come with a case, some don’t, but there are lots of cases for them if you have a 3D printer.
The LoRa antenna isn’t integrated though (uses a U.FL connector) but it comes with a little mini-whip. I’m not sure I can recall any Meshtastic-compatible boards that have a fully-integrated antenna.
Running it directly from a solar panel is possible, but the ESP32-based boards aren’t the most power-efficient. I have one of mine running from solar but it’s got a 2000 mAh battery to smooth it out.
The nRF-based boards are more power efficient but they’re a little more expensive and may lack Wifi.
Edit/Addition: Also, be careful powering at least the Heltecs from solar – make sure you use a solar panel with a voltage regulator. I used a small, unregulated 1W panel on two of them and it burnt out the USB->UART controller on them (they didn’t like its 6V). They both still work but can’t use the USB port for serial connection anymore (have to use an external serial adapter to the pin headers). One of those is now a base station connected over Wifi, and the other is acting as a repeater.