Numbers Stations, The Woodpecker etc.
The so-called “Numbers Stations“ are a favorite topic on the Interwebs. Some obvious open source information is available but wild speculation about them is widespread. I won’t try to duplicate […]
Mil Radio Ops at FOB COVID 2020
The following is a brief After Action Report on Military Radio training operations at Forward Operating Base COVID, July 2020. Scheduling difficulties required delaying from the June 2020 ARRL Field […]
AN/APR-1 & APR-4 Radar/Comm Surveillance Receiver
AN/APR-1 Radar/Communications surveillance receiver. (aka APR-1). Below: Type 13 and 22 Air Search Radars aboard the Imperial Japanese Navy destroyer HARUTSUKI. They were also installed on some IJN submarines after […]
TRC-88 HF CW/SSB Transceiver
UPDATED 7/1/19 A work in progress. I am currently working on reviving an RT-665( )/TRC-88 transceiver. This will be a challenge since I cannot find any documentation on the set […]
TRC-77A HF CW Transceiver
UPDATED 7/18/20 A friend recently gave me an RT-654A/TRC-77. Also known as the TRC-77A. The RT-654(*) is the basic component of the “AN/TRC-77” set. (“TRC” = Transportable Radio Communications. The […]
Fast Patrol Torpedo Boats / PTF-17
PTF-17, PTF’s in general and Coastal River Division 21 Ops: Updated – 11/24/2020 A Work in Progress.First, a little background: Why PTF’s? The Green Water Navy. Despite what several Keyboard […]
The PRC-47 HF SSB/CW/RATT Transceiver
Updated 4/2/20 Some notes regarding the Collins PRC-47. This radio was designed by Collins and produced by them but they also subcontracted with Bendix to produce additional sets. All Collins […]
AN/GRC-109 “Special Forces” Radio Set
UPDATED 11/9/20: My favorite “Black Radio” even with its few quirks. Probably the ultimate “SHTF Radio” for trained (or trainable) personnel. Some research, observations and adventures below; probably more than […]
SCR-284 Radio Set
UPDATED 29 June 2020. The SCR-284 was used extensively during WWII. The basic component is the BC-654-A receiver transmitter. Designed as a portable field radio, the complete field set could […]
PRC-25 Radio Set
UPDATED 6 Jan 2021 The AN/PRC-25 (AKA “Prick-25”) had a relatively short but very successful history before it was soon replaced by the PRC-77. In 1967 General Creighton Abrams, deputy […]