PCARA
POLK COUNTY AMATEUR RADIO ASSOCIATION
PCARA
N9XH REPEATERS
147.195 + (110.9)

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HQ-110 Looking & Performing Like New
HQ110_1
Photos: Rick W9WS
March 22, 2014 - Fresh off the tech-bench at Rick's W9WS QTH, this Hammarlund HQ-110 receiver is ready for daily use. Available from the venerable superheterodyne receiver manufacturer since the mid-1950's, this amateur band unit was very popular.
HQ110_2
March 22, 2014 - Rick reports excellent CW receive utilizing the receivers built-in Q-multipier. Stability is also very good. After just an hour of warm-up time Rick experienced much better performance with this unit in comparison to the one he had back in 1967.
HQ110_3
March 22, 2014 - The final assembly after the refurbishment includes a new quartz clock movement, replacing the original motor and gear driven unit. Be sure to ask Rick about his "new" HQ-110 the next time you see him. Perhaps you'll even have the pleasure of working him on HF in the future so that he may hear your signal on this beautiful ham receiver
 
Ben KC9ROI Reveals K3 to AH4 Interface
KC9ROI AH4-K3 Interface
Photos: Rick W9WS
Mach 8, 2014 - How do you interface an Icom AH4 auto-tuner and the Elecraft K3? A prototype was on display at the March PCARA club meeting. The project developed when Steve NØXC and his son Ben KC9ROI wanted to use the auto-tune control on the K3 to activate their favorite antenna tuner already installed at their QTH. But, there is no interface available. No problem, Ben just decided to invent one! Using the product manuals for both rigs, he found out a pulse system was needed by the AH4 and the serial control of the K3 interfaced using command codes. An Arduino micro controller required custom written code to decipher the pulse system and provide communications to the K3.
K3 - AH4 Interface
March 8, 2014 - The prototype K3 - AH4 interface made by Ben KC9ROI and his father Steve NØXC required a custom circuit board which they laid out using specialized software, followed by their etching a glass-epoxy board. Version 1.0 is shown above, however a 2nd version is already being planned to incorporate additional features. The keyed buttons allow for easy interface to multiple functions.
 
CLUB
EVENTS
April
7th - 9pm Net
WM9E
12th - Meeting
Balsam Lake
14th - 9pm Net
W9GWG
21st - 9pm Net
KD6TWC
28th - 9pm Net
W9WS

CLUB
OFFICERS
President
Rick W9WS
Vice President
Mark W9GWG
Secretary
Greg N9CHA
Treasurer
Chris KC9NVV
N9XH - Polk County Amateur Radio Association - 1732 Forest Circle - Balsam Lake - WI - 54810 - Info@N9XH.org