Well I was thinking about something about 1 meter long, rigid (aluminum?), with an SMA connector. I don’t want anything that could deform or be damaged as I don’t have a good way to really test the antenna. I thought perhaps I could stick the antenna on a mast top or on its own spike or something depending on the surrounding foliage conditions for a horizontal signal with a vertical mounting. Perhaps if the surroundings were right I could even hang it from something vertically, something that would work better with a rigid antenna with a bit of weight to it I think. I guess it could also be used on a rope between trees suspended horizontally and become a vertical for FM, perhaps with a rig or transverter mounted to the antenna as well. If I were to hang my yagi between trees along its boom on a rope it would be pointing at a tree, but the slot antenna would be focused broad side of course. I have an M2 yagi ( 23CM22EZA) but it does put stress on a mast and you really have to know who you want to work, and it seems a bit fragile but it has grabbed a nice contact for me and it is very light. I think the M2 would have been a better design with a mid mast boom mounting point of some sort.
I don’t know yet exactly how much gain a slot antenna of 1m long can get me, but it seems like it doesn’t take much length to get reasonable gain and it seems like a durable antenna.
I am not nuts about trying myself to get the measurements dead on for a microwave band, and I don’t have a good 1.2ghz analyzer so I am thinking about buying a slot antenna ready made. The only SWR indicator I have for 1.2ghz is the SG labs indicator light on the transverter.
The ARRL handbook says that tropo is more common at 23cm than at 2m, so I have hopes that some random TX might get me something when I was not expecting it…but I don’t have much 23cm experience right now.
I was really eyeing something from this guy: