EME144 2.6GHz Relay Kit

EME144 2.6GHz Omron Relay Kit

Completed EME144 2.6GHz Relay Kit

Please Note: that all information including pictures on this web page are copyright to Mini-Kits & must not be used on any other web site, or reproduced in any publication.

This Relay Kit is suitable for switching RF from DC to 3.4GHz, and has a low loss and high 50ohm return loss. The Omron G6Z-1F-A-DC12 Relay is specified for up to 10Watts @ 900MHz, but has been used to reliably switch up to 20Watts FM on 1.2GHz.

We have tested these relays up to 50 Watts FM on both the 2M 144MHz and 70cm 430MHz bands. We were not able to detect any rise in temperature which would be RF loss when operated over long periods in time. These as with all relays should not be hot switched which would reduce the life of the relay contacts.


  • Return Loss: 34dB @ 430MHz, 27dB @ 1.3GHz, 15.5dB @ 2.5GHz, 15dB @ 3.4GHz
  • Insertion Loss: 0.25dB @ 1.3GHz, 0.2dB @ 2.5GHz, 0.8dB @ 3.4GHz
  • Isolation between any ports: 65dB @ 430MHz, 60dB @ 1.3GHz, 49dB @ 2.5GHz, 32dB @ 3.4GHz
  • PC Board Size: 29.5 x 37mm, does not include SMA connectors

EME144 Tests:

Unfortunately when we did these tests, the files saved the curves in light Green which has made it difficult to read. All tests were done on a modern calibrated Anritsu Network Analyzer. All test cables & connectors were used when calibrating the Analyzer to cancel the influence of these on the readings. The first set of readings are from 500MHz to 1.5GHz & the second set from 1.5GHz to 3.5GHz.

The tests show that the Relay & PC board have got excellent properties for use up to 3.5GHz.

S11 return loss at 1.2GHz

1.2GHz S11 return loss through the relay terminated 50ohms.

S21 relay isolation at 1.2GHz

1.2GHz S21 relay isolation to open relay port.

S21 relay at loss 1.2GHz

1.2GHz S21 relay through loss port 1 to 2

S11 return loss from 1.5 to 3.5GHz

1.5 to 3.5GHz S11 return loss through the relay terminated 50ohms

S21 relay isolation 1.5 to 3.5GHz

1.5-3.5GHz S21 relay isolation to open relay port.

s21 relay loss 1.5 to 3.5GHz

1.5-3.5GHz S21 relay through loss port 1 to 2

Kit Constructors Alert:

There are no reported issues with this Kit.

Kit Changes & Modifications


1/ There are no changes to this Kit

This & all subsequent pages © to Mini-Kits 1999 - 2017, All rights reserved