Hawaii Repeaters in the 1970s required a FCC license for repeaters, the "R" in the call is for "repeater"

   Repeater Kits of the 70s   

before internet there were "books" to study from

1970s CRYSTAL RADIOS               

1970s Real Hams Had "Motorola HTs"        

FIRST SYNTHESIZED RADIOS         

These were all great radios of the day. The ICOM 2AT may have been the most popular of them all, easy to use solid radios that are still in use today.

In 1976 repeaters were built from a kit or retuned commercial repeaters. The ICOM IC-215 and Kenwood TR-2200A were the radio of choice before Hand Held radios were on the market.

Mauna Kapu UFN operates WR6AVM VHF  Repeater 442.475+ and 146.62- pl 103.5 now open for public access using a General Electric Mastr II Repeater with 125watts out to a 6db gain antenna with 1/2" heliax. From  2200 feet high above the Waianae Mountain range it is the highest powered Amateur Radio Repeater on the Mountain top. Site is equipped with back up generator. 

From 250 feet above Waikiki the WR6AVM VHF Repeater 147.26+ is using a Motorola Micor with coverage to Hawaii Kai to Leeward Oahu running 100 watts to an Omni antenna.  With links to the Maunakapu UHF repeater high atop the Waianae Mountain range PL encode only 103.5

From 280 feet on the Kaimuki Ridge line the 147.36+ repeater is using a Motorola Micor with coverage to Hawaii Kai to Leeward Oahu running 100 watts to an omni antenna CSQ.

Diamond Head Repeaters 1970s

The 147.16 MHz HWARS repeater is seen on top of Hualalai (8000ft elevation), on the Big Island. Looking North, the picture shows the Haleakala summit (Maui Island) emerging from the clouds on the right.