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Reviews Categories | Antenna Switching, Phasing, Controllers | MS-S7 Remote Antenna Switch. Help

Reviews Summary for MS-S7 Remote Antenna Switch.
Reviews: 1 Average rating: 5.0/5 MSRP: $US 156.00
Description: This Bulgarian sourced remote antenna switch (E bay)
consists of two units,the weatherproof switching box that
mounts on your tower or mast and the control unit that is
placed at your operating position.
The MS-S7 provides ease in switching without disconnecting
a connector.This 7 position remote switch can be used for
46 -75 ohm systems and handle 2000 watt SSB and 1500 watts
CW. Tested for extended periods with an Acomm 1500 watt
All unused terminals are automatically grounded for static
and lightening protection.
High power relays are used, max current 16 amp 1KV relays.
All contacts grounded on power off.
Frequency range 1.6 - 60 mhz Max SWR - 3:1.
Attenuation 0.05 db at 30 mhz
Voltage supply to relay 10 - 15 vdc < 300ma.
Mast size brackets supplied for 11/2 - 2" .
Connectors Teflon SO-239 with gold plated contacts.
Control line any 8 conductor UTP cable
Control box uses easy to read LED indicators.
Product is in production.
More info: http://"
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VK2NZA Rating: 5/5 Sep 26, 2017 05:00 Send this review to a friend
Quality unit at a very fair price.  Time owned: more than 12 months
I purchased the MS-S7 remote antenna switch from the supplier via E bay in 2015, not having seen a review to date on E Ham I felt it was worthy of a review.
It has been fitted to my center mast at 12 meters in the hot Australian sun feeding an 80 meter OCF, a ZS6BKW and an 80 meter half wave dipole since and has performed flawlessly.
The unit is rated at 2 KW PEP however I rarely reach 200 watts and can't attest to its rated power handling however suffice to say it is a very well built unit and so far its weather handling capabilities have been excellent.
The switch box is a metal box with LED's and a smoothly operating rotary switch for selection of antenna.
It has a pigtail for wiring to the remote unit and uses an Ethernet Cat 5E network LAN cable to connect , this is not supplied however it is a very inexpensive easily obtained cable available in many lengths, in my case 20 meters.
The remote unit is an attractive blue coloured octagonal shape, quite robust and very well designed with quality SO-239's for coaxial cable.
It come supplied with 2 clamps for mounting to a 11/2 - 2 inch mast and connection to the control box is as simple as plugging the two ends in.
The control box has a DC connection for 10 -15 vdc to operate the heavy duty relays rated ata claimed. 16 amps and 1 KV
I have no reason to disbelieve the ratings as the quality is excellent especially for the price.
I replaced an Ameriton unit with the MS-S7 and it is IMHO a better quality device.
It switches positively, grounds unused positions and grounds all connectors when switched off.
I have been impressed with this product, it operates very well and it has a quality feel and appearance to it that is often lacking with certain other competitors in the price range.


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