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Relay with FT 857

Aug 13th 2017, 07:13


Joined: Mar 31st 2008, 23:00
Total Topics: 0
Total Posts: 0
What is the most economical relay switch to use for operating on battery power that would sustain battery life using a YAESU FT 857 and a 12V rechargeable battery? A low transmitting power is desired 0-15 watts.

I looked at two different relays (see below) but not sure what to use and if these relays are compatible with the specifications of a FT-857.

Relay#1) SPDT Electromechanical Relay Failsafe Switch DC to 26.5 GHz,SMA, 20 Watts, 12V Control, TTL, Diodes, Indicators ($129.56 - $169.15)

Relay #2) SMA Female SPDT Relay Switch DC-3 GHz, 12 Vdc
Bracke Part Number: BM14068
Aug 13th 2017, 10:08


Joined: Apr 4th 1998, 00:00
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Total Posts: 0
Those relays appear to be RF relays. Exactly what are you trying to switch?
Aug 14th 2017, 12:35


Super Moderator

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
I use a lot of SMA relays on the microwave bands. There are lots of cheap relays that will work up to 6M--just check out homebrew remote switch articles.

Zack W1VT
ARRL Senior Lab Engineer

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