gain

276 links - and 3 categories

A 5 elements Vee log-yagi for 10m - 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals
[ Hits: 4609 | Votes: 11 | Rating: 7.82 ]

2m VHF antennas with high gain - 2m SSB/CW-12.5 Ohm Yagis with extrem high gain and small bandwidth. These Yagis were constructed as ultra-light, portable Yagis with extrem high gain. They have small bandwidth and are working from 144,0-144,8MHz with good SWR.
[ Hits: 8262 | Votes: 12 | Rating: 7.75 ]
ZR6KMD 2M Beam Antenna - This design was adapted from an article in the ARRL Handbook and built with simplicity and duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db.
[ Hits: 2222 | Votes: 1 | Rating: 2 ]

Hairpin match for the 5 elements Tonna for 6 meter - How to improve the gain of your 5 element Tonna yagi for 50 MHz by roughly 3 db!
[ Hits: 2435 | Votes: 6 | Rating: 6 ]
A Hairpin match for 5 el. Tonna - An interesting modification to improve the gain of your 5 element Tonna Yagi beam for 50 MHz by roughly 3 db!
[ Hits: 1963 | Votes: 3 | Rating: 5.67 ]

Quadrifilar Helix antenna for 436 MHz - This is an antenna that author just built. Was intend for receiving the AO-27 downlink (at 436.800 +/- doppler). It is built with right hand circular polarization, and the gain is supposed to be in the neighborhood of 3 DB.
[ Hits: 3897 | Votes: 4 | Rating: 4.5 ]

80 meter frame antenna - This projects was developed as a result of experiments to become QRV on 80 meters, again, using the little balcony by SM0VPO
[ Hits: 6595 | Votes: 8 | Rating: 6.5 ]

Inverted Vee monoband antenna - This project will enable you to build a monoband long wire inverted vee with 3/4 wave length sides that will have a bit of gain
[ Hits: 2263 | Votes: 1 | Rating: 10 ]

Antenna Gain Comparison System - This device goal is to optimize homebrew antenna for the V/UHF band. This tool, is based itself on the simultaneously comparison between two antenna, directly in dB. by IK0BDO
[ Hits: 2212 | Votes: 12 | Rating: 5.58 ]

Morgain Antenna for 40/80 - Simple and cheap antenna for 40/80 meter band in Italian
[ Hits: 11247 | Votes: 36 | Rating: 6.3 ]

70cm Quadruple Quad - A suitable high gain 70cms antenna for SOTA operation by Richard Price GW0VMW
[ Hits: 11684 | Votes: 16 | Rating: 6.25 ]

G/T Simulations - by VE7BQH - Here you will find information on how antennas behave when stacked G/T is an important figure-of-merit for the antenna's overall receive performance, because it balances forward gain (G) against received thermal noise (T).
[ Hits: 849 | Votes: 8 | Rating: 7.87 ]
Calculate antenna gain - Guide to calculate effective gain of antennas
[ Hits: 10330 | Votes: 96 | Rating: 6.51 ]
Antenna Gain versus Height - Antenna gain for horizontal, vertical, and tilted orientation of a dipole for heights between 5 and 50 feet.
[ Hits: 1767 | Votes: 8 | Rating: 4.75 ]
Antenna Gain on Trial - Most people think it's a good thing to have and the more the better. However, this is not always true - and the amount of gain is often not what it appears to be. Assuming higher gain is what you need, how do you determine what will give the best performance?
[ Hits: 972 | Votes: 2 | Rating: 5.5 ]

Parabolic Discone antenna - This is the highest gain omni design the world may ever know having wide bandwidth
[ Hits: 2704 | Votes: 3 | Rating: 9.33 ]
DK7ZB 144 mhz Yagis - High gain, good pattern and acceptable bandwidth. These aims can be realized with a radiation-resistance of 25-35Ohms, because the 28-Ohm-feedpoint is very simple to match.
[ Hits: 1909 | Votes: 7 | Rating: 6.86 ]

A 2.4 Ghz High gain antenna ^pop - Here is how to build a high gain antenna for 2.4 gHz wireless networks. Several hams are experimenting with these devices in an effort to build a network. It is sometimes referred to as Hinternet or HSMM.
[ Hits: 61435 | Votes: 91 | Rating: 5.53 ]