Does anyone know what the theory behind these antennas is? all i can seem to see is that the radiator is about a full wave – but what about the. Ok, I know I just posted about Moxon antennas, but doing an image search for moxon antennas led me to the CJU antenna. Amateur Radio,Projects,Antenna Designs, Double Quad Beam,2m & 70cm SSB, Ham Satellites I found the 70cm CJU or IO works well on mhz as well.

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It sounds as if anrenna are more pleased with that,than the Yagi you built the other night. The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists When somebody uses these frequencies because they do not know the rules we must try to explain them, we must always be polite.

CJU 70cm Directional Orientation | QRZ Forums

We needed a lightweight boom which it could be of plastic of 0. We can not expect to hear it clearly, we will have to make an effort to pick the modulation up from the noise and we must add antenn we have to change the polarization and the frequency to face to the Doppler effect.

Nearly forgot,did it work ok for you. Who is online Users browsing antennna forum: No registered users and 3 guests. Je reageert onder je WordPress.

CJU Antenna

Service provided by Google FeedBurner. A bit slow at loading,but persevere. For the last months I have been looking at various sites to try to gather any information. It might antennna of interest to you, http: We can antennna find this feature in the cubical quad antennas. If anything, if you can imagine that the PVC is the handle of a frying pan, then it seems to be directional on the cooking surface.


He showed us how to program the HT memories and what skills we must develop to change the frequency while we are searching for the right polarization.

At this moment im definitely pleased with this antenna so far. I would be happy just cji know what the dbd gain was,I cannot even find that out.

CJU or IOIO Antenna for 70cm

I just wish there was more antwnna regarding the theory behind it and why the spacing between the driven element and reflector is what it is etc. Ik hoorde Pa0Ete op de ingang en draaide wat rond en je heb gelijk de juiste richting.

I bet you wished that I had not brought the aerial to your attention. I just got my ticket a week ago and have had a blast so far though I haven’t talked to anybody yet.

This way of working have given us a impressive outcome even with SSB LEO satellites, but I will not speak about them to clarify the article.

K5KDTJan 17, Deze werkt zeer leuk, en zeer makkelijk te bouwen en licht in gewicht en goedkoop. Well, in a couple of afternoons I have just built the vju, now Pedro EB4DKA had to test it because he is the expert at working in portable conditions. Various people say that it has the gain of a 4 element beam,even that can vary from design to design.


If it’s still not acceptable, I’ll find a way to get to the local ham store only open during office hours to get a better coax. I’ll shorten it first to see how that works.

Your name or email address: We cjj s earching around for some stuff suitable but we did not find it, so I talked about it with my father EA4ABV who apart antnna ham he enjoys raising canaries, and told me wait, perhaps the plastic stick where the canaries perch on in the canary jails has this measurement. Je reageert onder je Twitter account.

I think the latter is to the centre of the wire,if you are using 2 mm wire. Just joking regarding the PL Daarna een RF verzwakker tussen gezet om wat db-tjes te killen. Satellite Antenna Tips – Tips that may be of help with the most important part of an amateur ra Polarity can be “adjusted” merely by twisting it.

The CJU Antenna – related links We thought you might also be interested in these additional web sites, selected from the same category: It sounds like a problem with the reflector size or spacing