Models of Mizuho QRP
Transceivers Available
Model |
Band |
Price |
MX-3.5S |
80M |
25 Kč |
MX-7S |
40M |
25 Kč |
MX-14S |
20M |
50 Kč |
MX-18S |
17M |
50 Kč |
MX-21S |
15M |
50 Kč |
MX-28S |
10M |
50 Kč |
MX-6S |
6M |
50 Kč |
Please note that each
radio will take a maximum of two crystals at any one time.It is a simple
task to change crystals as they just plug in the transceiver underneath
the cover. ( no other adjustment needed).
GENERAL SPECIFICATIONS OF
TRANSCEIVERS
Construction : Metal case
throughout
Model |
Freq.
ranges [kHz] |
Mode |
MX-3.5S
|
3.500-4.000
|
LSB/CW
|
MX-7S
|
7.000-7.300
|
LSB/CW
|
MX-14S
|
14.000-14.350
|
USB/CW
|
MX-18S
|
18.068-18.168
|
USB/CW
|
MX-21S
|
21.000-21.450
|
USB/CW
|
MX-28S
|
28.000-28.600
|
USB/CW
|
MX-6S
|
50.000-52.000 |
SSB/CW
|
Semiconductors |
- 4 ICs
- 13 Trs
- 6 FETs
- 37 Diodes
|
|
|
Power supply voltages
|
- Internal 8.4-9VDC
*
6x AA drycells (When using drycells use
supplied dummy battery)
* 7x
Nicads.
-
External 9.5VDC (Do not put 12V directly
into the rig unless using optional DC/DC converter or charging
internal nicads !!!)
|
|
ower
consumption |
RX 70mA ( at no signal)
|
TX 620mA (maximum) |
|
Frequency
stability |
± 500Hz At power-up |
±
100Hz at 25
deg. C
after 30 Min. |
|
Antenna impedance
: |
50 W |
Dimensions : |
2.6" x 1.5" x 5.6" |
Weight : (including Batt.) |
MX-3.5S : |
645g |
all others : |
590g |
TRANSMITTER
SPECIFICATIONS
Maximum power output
:
|
2 Watts (1 watt MX-6S 6 meters)
|
Spurious radiation
:
|
-40 dB |
Modulation
:
|
Single sideband
(suppressed carrier)
|
Carrier suppression
:
|
40
db minimum
|
Crystal filter sideband
suppression :
|
40 db
minimum
|
Harmonic
Levels : |
2nd |
3nd |
4th |
5th |
6th |
7th |
8th |
9th |
-63dBc |
-59dBc |
-76dBc |
<-90dBc |
-82dBc |
-80dBc |
<-90dBc |
<-90dBc |
|
Built in microphone, LED
transmit indicator and mini CW key-button on
top panel.
|