V-2R, COLLINEAR 2M VERTICAL 138 175 MHz SO-239 3 DBD Type_Adaptors and Connectors you can purchase the ARF-500K

you can purchase the ARF-500K remote kit to modify your ALS-500M to use the ALS-500RC)  The ALS-500RC allows the amplifier to be located away from the operating station and still have access of the amplifiers front panel controls

15/12 Meters

4000 Watts PEP on all modes

It lets you use your linear amplifier for high power QSK CW

It also has a current meter

V-2R, COLLINEAR 2M VERTICAL 138 175 MHz SO-239 3 DBD Type_Adaptors and Connectors you can purchase the ARF-500KCovers 138 175 MHz 2 Meter vertical with 5. 2 dBi gain derived from the famous extended double zepp antenna design. Radiating elements are two collinear waves fed in phase. 2 sets of wave radials properly decouple lower radiator from the mast. SO 239, handles 500 Watts. 9 ft. Model Frequency Gain Input Power Wind Max Mast Height Weight V 2R 138 175 5. 2 dBi 500 Watts 105 mph 2 in. OD 9 foot 6 pounds V 42R 143 153, 7. 2 UHF dBi 200 Watts 100 mph 2 in.