EME3-432 – A Complete Solution for 432 MHz 1200 W Transmit-Receive 70 cm Contests and EME with Split RX
QRO – Extreme power on transmit and super low noise on receive with integrated Input band-pass filter. Three connectors. Separate receive and transmit connectors.
QRO made on low dielectric loss RT/duroid® 5880 Laminates (not on FR4 Important!).
|1.82 MHz||< – 60 dB|
|3.80 MHz||< – 60 dB|
|7.1 MHz||< – 60 dB|
|14 MHz||< – 60 dB|
|28 MHz||< – 53 dB|
|50 MHz||< – 38 dB|
|70 MHz||< – 30 dB|
|144 MHz||< – 13 dB|
|148 MHz||< – 12 dB|
|432 MHz||+19.7 dB, NF= 0.68 dB, Input RL= -14 dB, IP3out > 37 dBm|
|440 MHz||+19.7 dB, NF= 0.68 dB, Input RL= -14 dB, IP3out > 37 dBm|
|450 MHz||+19.7 dB, NF= 0.68 dB, Input RL= -14 dB, IP3out > 37 dBm|
|930 MHz||< – 19 dB (GSM)|
|1296 MHz||< – 26 dB|
|Frequency:||Input Return Loss (S11):||Insertion Loss (S21):|
|432 MHz||< – 34 dB||0.06 dB|
|450 MHz||< -41 dB||0.07 dB|
|Power consumption:||+ 12 V, 200 mA|
|Max. power SWR 1:1||1200 W|
|Max. power SWR 1:1.5||1000 W|
|Max. power SWR 1:2||600 W|
|Max. power SWR 1:3||400 W|
|By order:||7/16 DIN|
|Outdoor version:||+9 EUR|
How to properly connect any EME2 or EME3 for any band to the sequencer?
Use these schematics. Quality sequencer is mandatory.
How does the fail-safe option works?
Fail-safe relay is the possibility to have information, on did EME2-432 is switched to transmit position or not.
In that situation, the additional Fail Safe “FS” relay will switch to ground or not an additional line.
That information sequencer could use to take another step in switching linear amplifiers or transceivers.
If by chance +12V was not disconnected from EME2 (receive position) linear amplifier will not burn the preamplifier, because the sequencer will not have information that EME2 fail-safe relay is switched.
Summary: With a fail-safe relay, a linear amplifier or transceiver will never burn the preamplifier because of any problematic situation.
It could work only if the sequencer has an input port for a fail-safe relay (line). And logic to use it.
Our EME – EME family. Band-Pass filters + VLNA + Transmit Receive Relays:
6 meter band, EME2 – 50: EME2-50
6 meter band, EME3 – 50: EME3-50
4 meter band, EME2-70: EME2-70
4 meter band, EME3-70: EME3-70
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