LNR KD1JV Скачать руководство пользователя страница 1 | Manualshive

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LNR KD1JV Скачать руководство пользователя страница 1

The Mountain Topper by Steve Weber (KD1JV)

(MTR)

www.LNRprecision.com

FULLY ASSEMBLED – Manufactured by LNR Precision, Inc.

A very small, very efficient three band QRP CW rig.

Specifications:

Three bands, 40M, 30M, 20M

Receiver:

MDS: ~0.2 uV
Small signal band width ~ 500 Hz
Audio output limited to ~ 1200 mv p-p

Headphone output, 16 ohms min recommended.

Transmitter:

2.5 watts @ 9 volt supply typical

Spurs -50 dBc or better

Size: 3.8” x 2.7” x 1” (LWH)
Weight: 4.4 ounces.

Power requirements:

6 volts minimum, 12 volts maximum.

Receive current:

~ 35 ma, no signal.

Transmit current:

~ 400 ma @ 9V, 20M
~ 550 ma @12V, 20M

(transmit current is slightly less on 40 and 30 meters)

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Содержание KD1JV

Страница 1: ...er MDS 0 2 uV Small signal band width 500 Hz Audio output limited to 1200 mv p p Headphone output 16 ohms min recommended Transmitter 2 5 watts 9 volt supply typical Spurs 50 dBc or better Size 3 8 x 2 7 x 1 LWH Weight 4 4 ounces Power requirements 6 volts minimum 12 volts maximum Receive current 35 ma no signal Transmit current 400 ma 9V 20M 550 ma 12V 20M transmit current is slightly less on 40 ...

Страница 2: ...ition of this switch is changed the digit for the band selected will flash on the display When changing bands after initial power up the last used frequency for that band will be loaded Volume control There is none Instead an automatic level control is built into the rig This circuit limits the audio output level to about 420 mV rms which is about 10 mW into a 16 ohm load typical for a pair of ste...

Страница 3: ...he Tx frequency as illustrated by the diagram A 0 is displayed when Rx Tx frequency A side tone beep is also sounded when you tune back to the frequencies being equal When you tune above or below the Tx frequency but by less then 250 Hz the display will show When you tune beyond delta 250 Hz LED segments above or below the center segment will light changing in a clock wise direction for above the ...

Страница 4: ...SWR into an unknown load Power output starts at a few 100 mw and it takes a few seconds for the power to ramp up to about 2 watts If full power output is desired for say checking power output into a 50 ohm load dummy or antenna with a supply voltage greater then 10 0 Volts put the rig into straight key mode by holding closed the Dash paddle while tuning power on Reset to paddle mode when done by c...

Страница 5: ...e location an store up to 63 characters which includes word spaces Upon releasing the Fn switch after the letter M has been annunciated the receiver will mute and entry of the message via the paddle may begin If keyer memory entry has been selected by mistake clicking the Fn switch will exit this mode without disturbing the contents of the memory provided the paddle has not yet been used Timing fo...

Страница 6: ...l decrement the delay by 1 second increments but can not be reduced below the default 3 second initial delay time Messages in straight key mode If messages are in memory they can be also used in straight key mode In this case they can only be activated by the front panel switches Message pause is not available but the message can be terminated by closing the key while the message is being sent P P...

Страница 7: ...f battery power options are available to choose from A single 9V transistor radio battery will supply several hours of operating time and is often used for Sprint type contests when station weight is a factor in the scoring A battery pack made up of AAA or AA batteries will supply many hours of operating time Choose from using as little as 4 cells for 6V QRPp operation or 8 cells for full power of...

Страница 8: ...to the rigs antenna jack and placed near the TP1 test point should pick up plenty of signal If you have no means of accurately measuring 10 MHz skip through this procedure by clicking the Fn switch after step 6 and go directly to the LO cal procedure 1 Click and hold closed both the RIT and Tune UP switches 2 Apply power 3 CR will be annunciated by the side tone C and then r will appear on the LED...

Страница 9: ...ou tweak the LO frequency be sure to go back to the headphone jack and reset the BFO frequency to peak in the audio filter 7 Click the Fn button again to finish the calibration The rig will reset and restart ...

Страница 10: ...Schematics Receiver section ...

Страница 11: ...CPU TRANSMITTER Sections ...

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