2012年12月1日 · The R-390 was a very hard radio to maintain as well as expensive so that is why the 390A was developed. Ive worked on scores of both in the USN and later when they started showing up surplus in the late 60's and I had a moonlight job for Herb Gordon Company getting them up to specs. Toss in quite a few R-388's and 51J4's.

2017年12月4日 · You might notice the covers are missing on my R-390A. Just purchased a set of brand new top and bottom covers for it this morning. These are a pair of reproduction covers made for the R-390A.

2017年9月1日 · The general consensus was that it was a good altho overly complicated radio that had competition such as the 51J4, 50S1, R-390A to contend with, was not easily maintainable, and was obsolete by then. As with most equipment designed in the 50's it …

2020年11月11日 · When sunspots were down so were the signals on Band 4. Even my beefed up HRO-60 and Collins R-390A suffer on the higher frequencies as does any of the super expensive SS gear. SX-140. Really nice looking and lends itself to mods. Mine wound up with double conversion, a real BFO and Product Detector. The T-150 shown isnt even a TX it is a R-100 ...

2003年8月5日 · Receivers reported among the check-ins included examples from the Collins 75A series, and the Collins-designed R-390A military receiver. A wide geographic area was represented among the check-ins, from stations as far south as Virginia to as far west as Michigan, but predominantly among the northeastern states.

2025年1月5日 · Terrence R. Redding became a silent key today. He was fighting a battle with cancer. He was a great father, an educator, a husband, and just an overall good man. Terry had a heart of gold and he was loved by many. It’s sad to see him go and he will be dearly missed by everyone who knew him. Life is way too short. Rest in peace my good friend.

2011年7月8日 · John R Waltner, N0SD SK Birth Date: Dec 11 1938 10-10 Number: 12939 QCWA Number: 27284 SIOUX FALLS — John Randolph Waltner, age 72, died unexpectedly, but peacefully, on July 8, 2011, at his home in Sioux Falls. Services will be held on Friday, July 15, at 11:00 a.m., at Pioneer Hall in Freeman. John led a rich and full life.

2024年12月19日 · Raisa R1BIG sta facendo il suo primo salto nell'entusiasmante mondo delle DXpeditions, e che salto! Insieme al veterano capo spedizione Yuri N3QQ, si sta preparando per una rara attivazione di Cano Island, Costa Rica, operando con il nominativo di chiamata TI1RRC.

2025年2月13日 · Discover how the Motorola R7 transforms communication with its next-level noise suppression technology. It's noise suppression technology is one of the...

2025年1月25日 · Posted on DX World by NIKOS, SV2WT on January 27, 2025 at 2:10 pm: Illegal operation, the Holly Epistasia has send an email and clear things, NEVER...