27-Feb-2018 (©HB9CVQ, DK2VQ, D. A. Hansen)
--R&D Test Report Paper: Experimental efficiency estimation of small HF vehicular antennas--
Comparing HF-mobile Antennas at DL1A on 160/80/40/20m:
Stealth Telecom 9360 vs. Yaesu ATAS 120 A and el. small R&D 160/80m Monopoles
Diethard (Andy) Hansen HB9CVQ, DK2VQ, AK4IG, Christoph Schumacher DL7SAQ,
Dennis Willigmann DB6BD, Remo Reichlin HB9TPR, Reto Voser HB9TPX
http://www.dd1a.de/images/PDF/Comparing.pdf
Tuesday, July 10, 2018
Friday, July 6, 2018
M0UKD 9:1 Magnetic Longwire Balun / Unun
M0UKD 9:1 Magnetic Longwire Balun / Unun
https://m0ukd.com/homebrew/baluns-and-ununs/91-magnetic-longwire-balun-unun/
https://m0ukd.com/homebrew/baluns-and-ununs/91-magnetic-longwire-balun-unun/
Wednesday, July 4, 2018
Active antenna mini-Whip
Active antenna mini-Whip
The active antenna mini-Whip 10 kHz - 30 MHz
http://www.ra0sms.ru/p/video-antenna-miniwhip.html
http://www.ra0sms.ru/p/the-active-antenna-mini-whip-10-khz-30.html
The active antenna mini-Whip 10 kHz - 30 MHz
http://www.ra0sms.ru/p/video-antenna-miniwhip.html
http://www.ra0sms.ru/p/the-active-antenna-mini-whip-10-khz-30.html
HF QRM Eliminator
QRM Eliminator
No idea how well or if these work but some information here.
EBAY PCB: http://tinyurl.com/y7uh3w7j
http://m1kta-qrp.blogspot.com/2018/04/qrm-eliminator-x-phase.html
http://www.ra0sms.ru/p/qrm-eliminator-x-phase.html
No idea how well or if these work but some information here.
EBAY PCB: http://tinyurl.com/y7uh3w7j
http://m1kta-qrp.blogspot.com/2018/04/qrm-eliminator-x-phase.html
http://www.ra0sms.ru/p/qrm-eliminator-x-phase.html
NoGaWaTT Kit Information
NoGaWaTT Kit Information
NoGa (North Georgia QRP Club) has finished another production run of the world famous NoGaWatt Meter Kit. The NoGaWaTT was featured in an issue of the NJQRP "Homebrewer".
This is a QRP watt meter and swr meter kit based on the "Stockton" design found in the 1996 ARRL Handbook pp 22.36.
The kit includes 2 analog meters (forward and reverse), pc board and parts and instructions to complete the kit including a dummy load. Users supply the enclosure and connectors. The power out meter can be used for either 6 watts or 2 watts maximum or with the addition of a switch and another set of trim pots can be switched between these 2 ranges. The meter labels are included and were calibrated with a scope.
No batteries or external power are required to use this kit. The kit is Altoids compliant. Several club members have packaged the NoGaWaTT with their NoGa PiG (Power Indicator/Guard) and never go out without them.
NoGaQrp kit ordering Information.
http://www.nogaqrp.org/nogaqrp_kit_ordering_information.htm
NoGa (North Georgia QRP Club) has finished another production run of the world famous NoGaWatt Meter Kit. The NoGaWaTT was featured in an issue of the NJQRP "Homebrewer".
This is a QRP watt meter and swr meter kit based on the "Stockton" design found in the 1996 ARRL Handbook pp 22.36.
The kit includes 2 analog meters (forward and reverse), pc board and parts and instructions to complete the kit including a dummy load. Users supply the enclosure and connectors. The power out meter can be used for either 6 watts or 2 watts maximum or with the addition of a switch and another set of trim pots can be switched between these 2 ranges. The meter labels are included and were calibrated with a scope.
No batteries or external power are required to use this kit. The kit is Altoids compliant. Several club members have packaged the NoGaWaTT with their NoGa PiG (Power Indicator/Guard) and never go out without them.
NoGaQrp kit ordering Information.
http://www.nogaqrp.org/nogaqrp_kit_ordering_information.htm
Sunday, July 1, 2018
Outernet delivers a multi-media broadcast
Outernet delivers a multi-media broadcast to small, portable receivers. By uniting a globally-scalable satellite broadcast with easily-accessible technologies and rich, digital media, Outernet brings about a new communication platform accessible to all.
https://outernet.is/
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