Resonant frequency [Resonance frequency]: 28, 21, 14 MHz
Frequency [Frequency]: 24, 18 MHz Logoperiodic
Number of elements [Number of elements]:
-28MHz 3 elements plus structure
-21MHz 3 elements plus structure
-14MHz 3 elements plus structure
-24MHz: structure
-18MHz: structure
(Structure includes four elements: dipole 14MHz, 21MHz dipole, dipole Reflector + 28MHz)
Maximum profit for [Max. Gain for]
– 14MHz 8.6 dBd
– 18MHz 6.8 dBd
– 21MHz 9.0 dBd
– 24MHz 6.8 dBd
– 28MHz 9.3 dBd
Damping Front – rear (front to back ratio)
– 28MHz , 21MHz, 14MHz: 30dB
– 24MHz: 15dB
– 18MHz: 10dB
bandwidth for SWR of 1.5: 1 (Bandwidth 1.5: 1)
– 28MHz: 600 KHz
– 21MHz 350 KHz
– 14MHz: 350 kHz
– 24 MHz nierezonansowe , increased SWR [non resonanse band, higher SWR]
– 18 MHz nierezonansowe, increased SWR [non resonanse band, higher SWR]
Boom length [Boom lenght]: 5,2 m
Longest element [Longest element]: 11.33 m
Radius [Turning radius]: 6.09 m
minimum height of the mast for installation on the roof [Min. Antenna height over the building (roof)] 7 m
minimum height of the mast for mounting on the ground [Min. Antenna height in (open space) over the ground]: 12 m
diameter handle connecting the boom to the mast [The clamb 50 or 60mm diameter for boom – mast bracket]: 50mm or 60mm
Weight [Weight]: 27 kg NOTE: You can add 1 element for which you need to do a separate power supply. It will then worked as a rotary dipole and here we choose the following frequencies: 10, 7, 3.5, 3.8 MHz. With version Dipol 10 and 7 MHz are your short and long, about which versions can be suspended decides mast height at which the base antenna is installed. (*) The GXP-7 antenna band 18 and 24 MHz is separated and can occur logoperiodyku SWR increased, which can compensate for the length of the power cord. NOTE: You can add one element for Which do you need it for a separate power supply. It will then worked as a rotary dipoles and here we choose the Help Us frequencies: 10, 7, 3.5, 3.8 MHz. When chose dipole version 10 and 7 MHz are your short and long, about Which versions can hang determines the height of the mast, he Which is the basic antenna installed. (*) Bands 18 and 24 MHz in the antenna GXP-7 are separated In this logoperiodic with Increased SWR, Which can be compensate for the length of the feeder. – See More Link
Contesting
Listen to your QSO with V47T during the CQWW SSB 2015 contest!
N0w you can listen your QSO in CQ WW SSB 2015 Visit and try: Real Sample: K3LR 160m SSB : QSO found but no audio available 80m SSB : QSO found... Read more
ARRL Announces Club Competition Eligibility Changes
Earlier this year, following a challenge that resulted in the realignment of several club scores in the ARRL 10 Meter Contest, it became clear that th... Read more
FT4 contests announced – RSGB
RSGB FT4 Contest Series A series of three short duration events on 80m to allow entrants to experience the latest machine-generated contest mode As th... Read more
2016 CQ WW CW Disqualification List
List of entries disqualified from the 2016 CQ WW CW Contest . 5Z4/DJ6TF 5Z4/DL2RMC 9M2R BA3MM BG3IAY CO8ZZ CR5K DR5E EE8E EU8R I1EIS KP4BD OU2W R5WW R... Read more
2020 CQ WW CW Raw Scores Available
Photo: ZF1A “We are happy to announce that the raw scores for the 2020 CQ WW CW Contest are now available. This includes 9001 entries received b... Read more
VHF
IARU Region 1 VHF Newsletter released
WRC 2015 When drafting this issue, the World Radio Conference 2015 had concluded his work. During 4 weeks more than 3000 participants attended this co... Read more
Icom Launches New IC-M25 VHF Marine Radio at the Southampton Boat Show 2015
Icom UK will be showcasing its latest range of marine communication products at this year’s Southampton Boatshow. Launching at this year’s Southampton... Read more
New 60 MHz Beacon Now on the Air from Ireland
The first — and so far only — beacon on 60 MHz went on the air on December 16. The call sign is EI1KNH. In early 2018, the 60 MHz (5-meter) band was a... Read more
VHF Contesting with the ICOM 9700
“Our entry into the RSGB 2m Backpackers contest, using the new ICOM 9700. We made 79 contacts into 6 DXCC during the 4 hour contest and got sunb... Read more
Baofeng DM-5R : Tier II Support [ Update ]
Baofeng DM-5R Radioddity has updated the DM-5R listing with this cryptic note about Tier II support: “Support DMR repeater function (DMR Tier I;... Read more
News
Ham radio hobbyists offer help during disasters
Ham radio hobbyists offer help during disasters By JENNIFER CALHOUN When a tornado ripped through Enterprise eight years ago and wiped out most forms... Read more
Chinese Amateur Radio Satellite Launches Delayed
CAMSAT says the CAS-7A launch has been postponed until next May, and CAS-5A until next June. “Because of COVID-19, many things have been delayed,” CAM... Read more
Radio Amateur first to pick up Titanic’s distress call
Source: The South Wales Argus reports radio amateur Artie Moore (MNX) was the first to receive the Titanic’s distress call but no-one bel... Read more
The World of Amateur Radio-Amateur Radio Vintage Film
The World of Amateur Radio-Amateur Radio Vintage Film Read more
Kazakhstan Joins the Growing 60-Meter Community
Radio amateurs in Kazakhstan now have access to the band 5,351.5-5,366.5 kHz on a secondary basis. The allocation came in the wake of a request by the... Read more
Equipment
SX-2000 QRP HF transceiver with touch screen
SX-2000 QRP HF transceiver “”I had in mind for a long time to realize an HF transceiver complete with all the functions of a commercial ap... Read more
TitanSDR – 9 kHz to 32 MHz frequency coverage
TitanSDR Multichannel HF Receiver Parallel Demodulation, Recording and Analysis of up to 40 HF Emissions Applications Homeland security... Read more
How to Build A 130 Watt Dummy Load for HF Ham Radio
In this video I go through the building of a paint can dummy load that a ham radio operator may require for testing and tu... Read more
Kenwood TS-990S HF/6m Flagship Base Station Being Built
Kenwood TS-990S HF/6m Giving you a rare glimpse behind the scenes at Kenwood’s Communications Division factory at Yamagata, in northern Japan,... Read more
Xiegu X108G
X108G Outdoor is X108’s upgraded version, It is a compact single conversion HF transceiver covering 0.5 to 30 MHz. Special optimized the Receive Chann... Read more
Warning: file_get_contents(https://plusone.google.com/_/+1/fastbutton?url=https%3A%2F%2Fqrznow.com%2Fantenna-yagi-gxp-7-7-elements-5-bands%2F): failed to open stream: HTTP request failed! HTTP/1.0 404 Not Found in /home/qrznow/public_html/wp-content/themes/goodnews5/framework/functions/posts_share.php on line 151