Ok sofa king where would I look for a antenna for the 436? Targeting my hard to receive system, 760 to 860 mzh. I did see a 3 element yagi on that English site, low gain, with these specific freqs.
Outdoor antenna for 700 - 800...only? I'd go to one of the bigger hamfest and look for a surplus commercial omnidirectional. You could probably also find a cheap yagi too, if that's what you need. At one time I was looking to pick up a distant county on 800 and actually played with a ~5' mid gain omni, a 7 element yagi, and my Discone...all on 7/8" hardline about 75' long. Yes, the dedicated 800 antennas did do somewhat better, but the Discone did a fair job. But I kept the Discone up for all the many other frequencies it works well on. Hearing so much stuff out of Miami (some 150 miles away) on VHF and UHF blew my mind. I hardly ever heard that stuff with RG8 type 9913, but as soon as I put 7/8" hardline on it, the doors blew open. I moved since then, and put the Discone on a shorter 40' run of 1/2" hardline, but the results are the same. I hear things often that are so far away that it amazes me. Yes, I know a lot of it is tropospheric ducted, but the point is my so-called "unity gain" Discone gets those signals, and the hardline preserves them. On 1/25/17 I was listening to many Border Patrol repeaters all around Texas and even out to AZ a d CA on high band!!! Then the next day out to the Bahamas and then down to Puerto Rico on VHF and UHF!
Now that may not matter to pickup local repeaters, or big tower trunked systems, but if you are trying to hear simplex MOBILE stations, this really does matter. And let me tell you...The amount of juicy surveillance I routinely receive in my town is a direct result of the good choices I made on my antenna system. For comparison, my friends with HP-2's and 536 scanners using stock or indoor antennas don't hear it at all...unless they are within a couple of miles. They are missing out on some of the best listening there is. Real bad criminals being watched and taken down by "real good guys". Hardly any of that was on repeaters or big trunked systems.
Phil