📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: onallbands.com — 🔗 Leggi l’articolo originale Editor’s Note: OnAllBands is pleased to post a series of articles written by accomplished amateur radio contester and DX Engineering customer/technical support specialist Kirk Pickering, K4RO. The articles, originally published in the National Contest Journal from 2008-11 and updated with current information, offer valuable insights for both contesters new and old. *** I’ve been off the air again lately, this time due to a lightning…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Got this from a friend. Anyone know anything about it?

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Hi all, been away for a while and in the process I lost my login info. Thanks to CableGuy and AuduoShockWave for getting me back up. I truly appreciate you guys. Today we have a Mark 8 (8 Tube – 17DQ6B) amplifier on the desk. Yes, I’m now starting to do little repairs on these, although I don’t know much about them and…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: onallbands.com — 🔗 Leggi l’articolo originale For the last several years, my emphasis in amateur radio has been on activating parks for the National Parks on the Air (NPOTA), Parks on the Air® (POTA), and World Wide Flora & Fauna (WWFF) programs. While I maintain a station at home, it seems to be used surprisingly rarely. Run by the ARRL in 2016, the National Parks on the Air program…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale First may I say I love my 400HDHG Amp and Carl is good people. That being said, I have read on spec sheets 1 2SC2879 transistor max in says 10 watts PEP each. Carl says on his website about the amp “400 4 hg 2879, Class C bias, fan cooled. Max amp draw 110a, install recommended with 4ga wire and 125a fuse. Max…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: onallbands.com — 🔗 Leggi l’articolo originale For today’s product spotlight, we turn to the amateur radio experts at Hamplus, a Brazilian company founded by Celso, PP5CFS, and Marcus, PP5MS. The company’s well-built and smartly engineered products have been making the operation of multi-antenna stations simpler and more convenient for contesters and DX enthusiasts since 2008. DX Engineering is the exclusive North American distributor of Hamplus amateur radio gear. Find…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Why not start a discussion about the various bias designs, filtering and just basic theory based around transistorized RF amplifiers. Swap ideas, schematics etc. etc. I will start off with my first intro into it. How many of you guys use a transistor to turn on the bias supply at keyup? I have rarely used a relay I normally use something like a…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: onallbands.com — 🔗 Leggi l’articolo originale OnAllBands is thrilled to feature articles from noted author and amateur radio DXing legend Bob Locher, W9KNI. Bob will be sharing his favorite DXing memories along with insights on what it took to capture the rarest of the rare. Be sure to read part 1 of this series—his account of making contact with Gough Island, ZD9—in this OnAllBands article.                                                             *** Bob Locher,…

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: worldwidedx.com — 🔗 Leggi l’articolo originale Looking for input if adding this with my Heil PR-781 mic would make up for the low audio from my Icom 746 non-pro Klark Teknik Mic Booster CM-1 In-Line Microphone Preamplifier BH# KLMICBSTRCM1 • MFR #0838AAT86001 CAMVATE 48V Phantom Power Supply with USB Cable Adapter and XLR Cable BH# CAC2660 • MFR #C2660

📌 INFORMATIVA COPYRIGHT — I diritti appartengono al legittimo proprietario. Fonte: onallbands.com — 🔗 Leggi l’articolo originale Today, OnAllBands is looking at two archipelagic DXCC entities roughly 8,400 miles apart: The Republic of Trinidad & Tobago is a country in the southern Caribbean made up of the main islands of Trinidad and Tobago and several smaller islets. It’s scheduled to be on the air until Aug. 9 thanks to the 9Y4 activation by 8P6PE as 9Y4/8P6PE from Chaguanas on Trinidad….