Kawagoe Musen 50MHz Direct Down Preamplifier (High Power Compatible)

Kawagoe Musen 50MHz LNA Antenna Direct Mount Preamplifier (High Power Compatible)
Used for several years, but offering to those interested due to a change in plans.
Effective for improving the S/N ratio of the receiving system, especially when cable loss is significant.
[Product Specifications]
Kawagoe Musen Homepage: https://moai.c.ooco.jp/sub6.html
Kawagoe Musen Part Number: 015 50MHz / High Power / Gain 32db / NF 0.2db
Operating Voltage: 12V-14V
Input/Output Connector: NJ-NJ
Maximum Mast Diameter: 65mm (U-bolt included)
Input Power: FM 600W, SSB 1.3KW
Included Accessories: Simple instruction manual and power cable that came with the purchase.

[Appearance] For waterproofing reinforcement, the joint of the main unit case was waterproofed with waterproof tape, and it was installed on the mast inside a plastic box. Therefore, there are some traces of waterproof tape remaining, but the case is glossy and I believe it is in beautiful condition.
[Operating Status] Just to be sure, I performed a desk test for transmission and reception on 2026/4/17 (FT8 & CW / 1KW) and confirmed normal operation.
Although the specifications state an input power of FM 600W, it withstood my IC-PW1/1KW in my installation environment. (This does not guarantee input power, and all usage is at your own risk.)
[Notes]
1. Due to the characteristics of LNA, clear effects may not be obtained depending on the usage environment. Please consider carefully before making a decision.
2. When installing, as noted in the attached simple instruction manual, please confirm that there are no issues with desk testing or PTT transmission/reception switching before installation. Incorrect installation can cause immediate damage.

#50MHz
#6m
#Preamplifier
#LNA
#AntennaDirect