[Elecraft] K2 & 6m transverters

[Dave]

Trev

I've just bought a second hand Microwave Modules MMT144/28 transverter. =
They are quite old now but work OK for most purposes and can be found =
cheaply on the second hand market. I don't know if there was a 50 MHz =
version. The box is small enough to fit a K2 sized case, although at the =
moment mine is not cased that way. Power output is 10 Watts from a 12 =
Volt supply - 300 mA on receive and 2.5 A on transmit. They use diode =
switching and will need the 2nd receiver (K160M) and KIO2 options in the =
K2 plus a simple two transistor interface (2 x 2N2222) to ground a 12 =
volt floating input at 80 mA. The drive level is a maximum of 500 mW, I =
use a 2 Watt 10 dB attenuator made in pi style from 2 x 100 Ohm and 1 x =
75 Ohm 2 Watt resistors. All straightforward stuff.

If you want a copy of the switching circuit, let me know.

73's Dave, G4AON
K2 #1892


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