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Ten-Tec OMNI-VII, User Manual

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Ten-Tec OMNI-VII User Manual Download Page 39

588 manual

Second release – August 2007

39

Part #74409
Printed in USA

CW Keyer Speed Range:

5-63 WPM, adjustable weighting.

CW Rise & Fall Times:

Adjustable 3-10 ms.

CW Offset:

Programmable 100-1270 Hz in 10 Hz steps. Sidetone pitch
automatically matches selected CW offset.

FM Deviation:

+/- 5 kHz peak nominal.

Current Drain:

25 A max. @ 100 W output.

Figure 6-1 OMNI-VII Block Diagram

455 Filters

.5-54MHz

1st Mix

2nd Mix

R

R

T

T

T

R

T

R

TX Filters

R

T

70MHz 125MHz

69.545MHz

3rd Mix

3rd L.O.

DSP TX

3rd L.O.

469kHz

14kHz

469kHz

Omni VII Block Diagram

DSP RX
14kHz

Preselect

P-P amp

70MHz IF

455 amp

Power
Amp

455 IF &
analog agc

Baseband
amp/filter

20kHz

6kHz

2.5kHz

.5kHz

.3kHz
.3kHz

1st L.O.

2nd L.O.

ALC

TX Amps

Amp

Low pass
filter

Mixer

20kHz

4kHz

Summary of Contents for OMNI-VII

Page 1: ...8 6 AF RF ENCODER 8 7 MIC 8 8 TUNE 10 9 PWR 10 10 11 V M and M V 10 12 MODE 10 13 STEP 11 14 ANT 11 15 SWP 11 16 AGC 12 17 BAND CHANGE AND DIRECT FREQUENCY ENTRY KEYPAD 12 18 A B A B SPL REV 12 19 MAI...

Page 2: ...OTE F3 24 REMOTE ENC 24 POD ENC RATE 24 VFO ENC RATE 25 RIT ENC RATE 25 VFO SPDSHIFT 25 DISPLAY 25 SPEECH PROC 25 I F FILTER 25 ENABLE 300 HZ ENABLE 500 HZ 26 Section 5 OPERATION NOTES AND ACCESSORY C...

Page 3: ...USA MASTER RESET 33 UPDATING OMNI VII FIRMWARE 33 DIAGNOSTIC AND IP DATA ENTRY SCREEN 34 SIGN ON THE SCREEN 34 TROUBLESHOOTING 35 Section 6 SPECIFICATIONS AND TECHNICAL DATA GENERAL 37 RECEIVER 37 TR...

Page 4: ...ams are not included in this manual but are available for download from the www rfsquared com firmware website This manual was written by Scott E Robbins W4PA Qty Part Description 1 27074 Mini ATC Bla...

Page 5: ...a given spacing are present for test purposes General coverage HF transceivers today are of an upconverting VHF level first I F followed by two or three more conversion stages This VHF I F first stage...

Page 6: ...ia the serial RS 232 port on the rear panel The transceiver then can be controlled by the user from the local PC from the front panel controls or both REMOTE STATE is when the transceiver is placed in...

Page 7: ...ms load will be useable with the transceiver Headphones above 16 ohms like 32 can be used without damage to the transceiver but audio output to the headphones may be reduced When headphones are plugge...

Page 8: ...alue A green LED indicator is next to the BW and PBT legends on the front of the radio above the encoder Press the encoder to switch between BW and PBT The BW control is used to set the value of the D...

Page 9: ...an electret condenser requiring a polarizing voltage Chassis ground and mic signal ground are separated to reduce the possibility of introducing stray hum or RFI into the transmit audio signal We reco...

Page 10: ...reamp is on or off and FM CTCSS tone in use If you want to exit the memory save function above WITHOUT saving the memory to a location instead of pressing V M the second time to save the memory press...

Page 11: ...transmitting via ANT 1 or ANT 2 depending on which is selected When AUX RX is in use on receive switching back and forth between ANT 1 and ANT 2 for transmit requires the AUX RX antenna be turned off...

Page 12: ...ain VFO using the keypad To direct enter a frequency press ENT The main display will change to a series of green dashed lines Enter the frequency using the numbers and decimal point If entering a freq...

Page 13: ...itting In CW modes the TX and ALC LED s will blink on and off with each character transmitted In LSB and USB modes the TX LED will be lit as long as the radio is in transmit The ALC light is used to a...

Page 14: ...ning the MULTI knob while speaking into the microphone The red ALC LED will flash When the light is flashing consistently on voice peaks the proper mic gain level has been set There is some variabilit...

Page 15: ...e done while holding the SPOT button down to hear the tone or the spot volume as it tracks The alternate function of this button is sidetone volume S T Press ALT then S T Turn the MULTI knob to adjust...

Page 16: ...audio sleeve is ground Requirements for an external speaker connected to OMNI VII is minimum 4 watts power handling 4 ohms minimum impedance 31 ACC 1 Figure 3 1 ACC 1 jack pin out diagram The ACC 1 j...

Page 17: ...re update site at www rfsquared com Brief instructions on firmware updating your transceiver are provided in UPDATING OMNI VII FIRMWARE in Section 5 35 AMP KEY OMNI VII is equipped with an open collec...

Page 18: ...el Use no less than 14 gauge 12 recommended stranded wires for three foot long connections to accommodate the high current demand during transmit Use heavier gauge wire for longer power supply leads 4...

Page 19: ...ther ANT 1 or ANT 2 being used as the transmit antenna Antennas are selected using the ANT front panel button See the description of 14 ANT in Section 2 of this manual The automatic antenna tuner opti...

Page 20: ...ter can be disabled by changing this line item to OFF SSB TX BW Available settings 1000 4000 Hz in 200 Hz steps The SSB TX BW control determines the bandwidth of a transmitted SSB signal It is selecta...

Page 21: ...splayed FM TX CTCSS is active in FM mode only If a value is selected and the radio is in any other mode this line item is ignored by the transceiver and the tone will not be transmitted There is no CT...

Page 22: ...ndividual transmitted CW characters A setting of 0 is full break in CW A delay of 100 is approximately a 1 second recovery time before receive audio is restored Please note that this control is not us...

Page 23: ...0 watts output Each band is calibrated in production This sets the required DSP output The CW waveform is generated in DSP and uses a raised cosine for the attack and decay The level of the DSP wavefo...

Page 24: ...es the function of the front panel REV button See 18 A B A B SPL REV in Section 2 A B duplicates the function of the front panel A B button See 18 A B A B SPL REV in Section 2 A B duplicates the funct...

Page 25: ...nsity of the backlighting on the display screen Lower values are darker lighting higher values are brighter lighting At 0 the screen lettering is almost unreadable on a dark background At 100 the scre...

Page 26: ...An installed optional 500 Hz or 300 Hz filter can be disengaged by selecting NO For example if the optional 500 Hz filter is installed ENABLE 500 Hz is set to NO and I F FILTER is set to AUTO when tu...

Page 27: ...user changes bands and does not hit tune before transmitting the tuner is in bypass mode and SWR is that of the antenna connected The automatic antenna tuner will operate on either ANT 1 or ANT 2 dep...

Page 28: ...initial linear amplifier tune up If an automatic antenna tuner is installed in your OMNI VII go into the menu and disable it with the AUTO TUNER line item Pressing the TUNE button will provide approxi...

Page 29: ...nd fine but no signal will be on the frequency you re listening to Worse perhaps would be not only is no desired signal present but that loud signal and other ones near it might even be throwing spuri...

Page 30: ...c gain control that is accessible under the front of the bottom panel Transmit bandwidth is both the frequency response of the transmitted signal and the amount of spectrum occupied by that signal Typ...

Page 31: ...ing level Speech processing is generally not used for higher fidelity SSB audio its use is primarily for added intelligibility for communications grade SSB audio It is also possible with high levels o...

Page 32: ...ing the power switch or your 13 8 Vdc power source OVER TEMP OMNI VII uses an internal temperature gauge on the final amplifier If the temperature exceeds 70 degrees C this message will appear on the...

Page 33: ...s equipped with a drag control To adjust the drag on the main tuning knob hold the silver skirt still while rotating the knob about a quarter turn There will be a gentle click feel as the knob is loos...

Page 34: ...KEY WAS PRESSED will appear along with hexadecimal information on the right side of the screen Encoder function can be tested by turning the encoders Each encoder 5 of them including the main tuning k...

Page 35: ...essor An excessively high setting can reduce audio quality A frequent cause of a distorted SSB signal is inadequate RF grounding resulting in RF feedback Common RF grounding problems are no ground con...

Page 36: ...nsmitting for a minimum of one minute See ON SCREEN STATUS MESSAGING elsewhere in this manual Problem No operation in VOX Is VOX highlighted at the bottom of the screen If not VOX is turned off Check...

Page 37: ...ccupied bandwidth Display STN transmissive color LCD display with CFL backlight 320 x 240 pixels PC control ports Serial EIA 232 standard DB 9F Integrated 10 mb s Ethernet CAT5 or CAT6 RJ 45 Supply Vo...

Page 38: ...eadphones Usable at 8 ohms AUX Audio Output 500 mv RX Notch Filter IF DSP 50 dB depth adjustable width Auto Notch IF DSP multi tone adjustable RX Noise Reduction IF DSP adjustable Noise Blanker IF DSP...

Page 39: ...FM Deviation 5 kHz peak nominal Current Drain 25 A max 100 W output Figure 6 1 OMNI VII Block Diagram 455 Filters 5 54MHz 1st Mix 2nd Mix R R T T T R T R TX Filters R T 70MHz 125MHz 69 545MHz 3rd Mix...

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