Trojica Petr OK1BOA, Petr OK1FCJ, David OK6DJ sa pripravuje na DX expedíciu TU5PCT. Je to časť partie úspešnej expedície S9OK.…
antenna
W3DZZ, G5RV, DK7ZB, G0KSC, DG7YBN,… what do these marks mean? They are KV and VHF antenna designs. The antenna is a decisive factor in reception and transmission, which significantly affects the result. Other types of antennas include quad, parabolic antennas, quagi, K9AY, beverage, slooper, etc. The advantages and disadvantages of each type of antenna can be discussed for a long time.
While searching for more detailed information on the multiband end-fed half-wave (EFHW) antenna, I was drawn to an article by Indian radio amateur Basu (VU2NSB): Multiband End-fed…
The End Fed Half Wave (EFHW) antenna is light, low-cost, multi-band and therefore attractively lucrative at first glance. To help…
The construction of an antenna mast can be simple and safe as long as it is done correctly. Radio amateurs when broadcasting from transit stations are…
E2A je častým násobičom v svetových contestoch ako je CQ WW DX CW contest. Nie je to prekvapujúce, lebo Siam…
CQ WW DX contest sa nezadržateľne blíži a viacero rádioamatérov sa vydalo do odľahlých kútov Zeme. 3B8M bude QRV počas…
Nechcete si prenajať špičkové pracovisko na CQ WW DX CW contest? Przemek ponúka možnosť prenájmu amatérskej rádiostanice na súťaž CQWW CW…
While last year the popular EME and microwave seminar had to be canceled due to the restrictions of COVID-19, this time it will hopefully be able to take place...
Maintenance of the OM0OUX converter on Sitna, a little longer reading about the joys and sorrows of sysop Since 2013, when it was put into…
MOTTO OF THE MEETING: "AGAIN IN HOLICY!" The 31st international meeting of radio amateurs should be held on 27-28 8.2021 traditionally in the vicinity of the cultural center and sports...
One of the goals of VHF radio amateurs is to cross the Atlantic. While this is a common issue on most HF bands, on VHF...
The BIG SIGNAL – Antenna Systems company has a radio amateur background, Juan Pedro, EA5GJ. The company also cooperates with the well-known Máximo EA1DDO. They specialize in…
SR7VC beacon repaired by Kazimierz SP7CKH. This beacon is located in the JO91RR and transmits to the antenna slot 2 x 10 with a power of 2.5…
The effectiveness of parabolic antennas also depends on the accuracy of the surface of the parabola and the correct placement of the irradiator in the focal point. On sunny days, it is offered…
Imagine the situation - you go up a hill and you need to find out where north is. You don't have a compass or compass. What to do? Reach for…
The terrain profile is important for choosing a suitable location for VKV. Any obstacle in the path of the signal causes attenuation. Very important…
Contesty ako sú CQ WXP SSB contest sú vždy motorom pre DX expeditions. Ruský tím si to namieril do Botswany,…
Finding a suitable antenna for cramped conditions can be a real challenge. Kow, JA0PI, did it. In the building, he implemented an antenna for…