Hilberling RF Laboratories PT8000 HF/VHF Receiver User Manual 051208

Hilberling GmbH RF Laboratories HF/VHF Receiver 051208

UserManual.wiki >

Hilberling RF Laboratories >

PT8000 User Manual HTML Version

Users Manual Revised

HF / VHF Transceiver

PT-8000 A·B·C

Operating Manual

Version 1.0

–– This page is intentionally blank ––

HF / VHF Transceiver

Hilberling PT-8000

Operating Manual

PT-8000, HN-8000 and T9

are

developed and manufactured in the EU

Hilberling GmbH

Kieler Strasse 53

24768 Rendsburg

Germany

Logo and name of Hilberling GmbH are registered trademarks

ii Precautions / Content

Important

Read and save this Operating Manual carefully before attempting to operate the HF/VHF PT-8000

transceiver. This manual contains important safety and operating instructions for the transceiver.

Precautions

WARNING HIGH VOLTAGE! NEVER touch an antenna or internal antenna connector during

transmission. This may result in an electrical shock or burn of your skin.

NEVER apply AC to the DC socket (13.8V and 100V for PT-8000 B) on the transceiver rear

panel. This will ruin the transceiver and may cause fire.

NEVER allow any object touch any internal parts or connectors on the rear panel of the

transceiver. This could cause electrical shock and severe injury.

NEVER expose the PT-8000 A/B to precipitation like rain or any liquid nor operate the

transceiver in excessively dusty or very humid environment.

NEVER allow children or any unauthorized persons to operate the transceiver.

AVOID placing and using the transceiver in areas with temperatures below -15°C or above +50°C.

AVOID placing the transceiver against a wall. This may inhibit proper air circulation and could cause

overheat.

USE CARE when connecting the transceiver to a linear amplifier. Set the PT-8000 A/B RF-output level

to less than the linear amplifier’s maximum input level to prevent amplifier damage.

USE CARE when not operating the transceiver with Hilberling T-9 microphone. Others may have

different pin assignments and connecting to the transceiver may cause damage to the transceiver and

the microphone.

For U.S.A. only:

CAUTION: Changes or modifications to the PT-8000 A/B not expressively authorized by

Hilberling GmbH could void your authority to operate this transceiver under FCC regulations

For Canada only:

This class digital apparatus complies with Canadian ICES-003.

Cet appareil numériqué de la classe est conformé à la norme NMB-003 du Canada.

PT-8000

C Operating Manual iii

Table of content

Part A Introduction

1 PT-8000 Series Of Transceivers - Characteristics

1.1 Receiver (RX) .......................................................................................................................................................A–1

1.2 Transmitter (TX) ..................................................................................................................................................A–2

1.3 Power Supplies And Growth Potential ....................................................................................................................A–2

1.4 Technical Specifications ........................................................................................................................................A–3

1.5 Operating Limitations ...........................................................................................................................................A–4

Part B Installation

3 Unpacking And Installation Considerations

3.1 Unpacking ...........................................................................................................................................................B–1

3.2 About This Manual ...............................................................................................................................................B–1

3.3 Initial Installation Considerations ...........................................................................................................................B–2

3.4 Antenna Considerations ........................................................................................................................................B–2

4 Connectors

4.1 Rear Panel ...........................................................................................................................................................B–3

4.2 Connectors At Front Panel ....................................................................................................................................B–6

5 Power Supply

5.1 General ...............................................................................................................................................................B–7

5.2 Rear Panel ...........................................................................................................................................................B–8

5.3 Front Panel ..........................................................................................................................................................B–9

6 Zubehör

6.1 Microphone Hilberling T9 ....................................................................................................................................B–10

6.2 Wiring/Cables ....................................................................................................................................................B–10

6.3 Pull Out Instruction ............................................................................................................................................B–11

6.4 Operating Manual ...............................................................................................................................................B–11

6.5 Handles .............................................................................................................................................................B–11

Part C Installation And Operation

7 Installation And Connections ........................................................................................................ C–1

8 Front Panel Controls, Display And Their Function

8.1 Front Panel Controls .............................................................................................................................................C–2

8.2 Display ................................................................................................................................................................C–3

8.3 Clustered Front Panel Controls ..............................................................................................................................C–5

8.4 Controls With Integrated Push-Button Function And Controls For Adjustments .........................................................C–6

8.5 Side Panel Controls ..............................................................................................................................................C–7

8.6 Keys With LED and LEDs ......................................................................................................................................C–8

9 MAIN- And SUB-RX Operations ..................................................................................................... C–9

10 Modes Of Operation (MODE) ....................................................................................................... C–11

10.1 SSB / CW (Single Side Band / Continuous Wave) ................................................................................................C–11

10.1.1 SSB Single Side Band .....................................................................................................................................C–11

10.1.2 CW Continuous Wave ....................................................................................................................................C–12

10.2 ISB (Independent Side Band) ............................................................................................................................C–13

10.3 AM / FM (Amplitude Modulation / Frequency Modulation) ...................................................................................C–14

10.4 DATA Transmission ...........................................................................................................................................C–16

11 Selecting Frequencies ................................................................................................................. C–17

11.1 BAND Select .....................................................................................................................................................C–17

11.1.1 HF BANDS .....................................................................................................................................................C–16

11.1.2 VHF BANDS ...................................................................................................................................................C–18

11.1.3 Transverter Operation ....................................................................................................................................C–19

11.2 Numerical Frequency Input ...............................................................................................................................C–21

11.3 CHANNEL Operation ..........................................................................................................................................C–23

11.4 MAIN Tunung Knob ...........................................................................................................................................C–25

11.5 STEP-VFO Control .......................................................................................................................................C–26

iv Precautions / Content

11.6 VFO Management .............................................................................................................................................C–27

11.7 SPLIT Operation .........................................................................................................................................C–29

11.8 RIT / XIT .........................................................................................................................................................C–30

11.9 LOCK Function .................................................................................................................................................C–31

12 Memory Operation (MEM) ........................................................................................................... C–32

13 Filter Bandwith And Shift Function (WIDTH / Shift) .................................................................. C–34

14 Notch Functions / Noise Reduction / Noise Blanker

14.1 Notch Filter Functions (IF- And DSP-Notch) ........................................................................................................C–36

14.1.1 IF-NOTCH .....................................................................................................................................................C–36

14.1.2 DSP-NOTCH ..................................................................................................................................................C–36

14.2 Noise Reduction ...............................................................................................................................................C–37

14.3 Noise Blanker ...................................................................................................................................................C–37

15 Squelch Function ......................................................................................................................... C–38

16 RX Gain Control (AGC / RF-GAIN) .............................................................................................. C–39

17 Frequency Scanning (SCAN) ....................................................................................................... C–41

18 Calibration, Voice Recorder ......................................................................................................... C–42

18.1 Calibration Menu ..............................................................................................................................................C–43

18.1.1 Reference Calibration .....................................................................................................................................C–43

18.1.2 Preselector Calibration ...................................................................................................................................C–44

18.2 Brightness Of Display (DIM)...............................................................................................................................C–46

18.3 Recording Functions (Voice Recorder).................................................................................................................C–47

19 Metering Of PT-8000 (METER) .................................................................................................... C–48

20 Basic Settings RX/TX .................................................................................................................. C–49

21 Transmitter Controls ................................................................................................................... C–54

21.1 ZERO-BEAT ......................................................................................................................................................C–54

21.2 MIC .................................................................................................................................................................C–54

21.3 PROC ...............................................................................................................................................................C–54

21.4 TX-PWR ...........................................................................................................................................................C–55

21.5 VOX .................................................................................................................................................................C–55

21.6 ANTI-TRIP .......................................................................................................................................................C–55

21.7 DELAY (of VOX).................................................................................................................................................C–55

21.8 Monitoring Function (MONITOR) .......................................................................................................................C–55

21.9 TX-DELAY (CW) ................................................................................................................................................C–56

21.10 KEY SPEED .....................................................................................................................................................C–56

22 Operating Auxiliary Equipment ................................................................................................... C–56

Part D Annex

23 Software Update (TBD).................................................................................................................. D–1

24 Circuit Description ......................................................................................................................... D–3

25 Block Diagram .............................................................................................................................D–11

26 Maintenance (TBD) ......................................................................................................................D–12

27 Troubleshooting (TBD).................................................................................................................D–12

28 Cross Reference (TBD).................................................................................................................D–12

29 Glossar (TBD) ...............................................................................................................................D–12

30 List Of Pictures And Tables (TBD)................................................................................................ D–12

31 List Of Menus (TBD)..................................................................................................................... D–12

32 Warranty Terms (TBD) ................................................................................................................ D–12

A–1

Part A Introduction

1 PT-8000

ERIES

RANSCEIVERS

HARACTERISTICS

Hans Hilberling, DK7LG, the founder of Hilberling GmbH and a veteran Amateur Radio operator and RF

engineer specified the design requirements of his “dream-transceiver”:

1. It must include a single high-quality transmitter with two independent receivers covering the

entire HF and VHF spectrum.

2. VHF operation must be an integral part of the design, not an afterthought. VHF performance

must match HF.

3. Its operational frequency range must be easily expandable through the use of transverters.

4. It must include independent sideband (ISB) capability.

5. The design must incorporate both analogue and digital signal processing, using the best of both

technologies.

6. It must provide high output power on HF through the use of modern, efficient HF-MOSFETs at

50 V (PT-8000A) and 100 V (PT-8000B) drain voltage .

The result is the PT-8000 series of HF/VHF-Transceivers featuring cutting-edge design!

1.1 Receiver (RX)

Each of the two identical receivers are double super-heterodyne Rx with 70.7 MHz 1st intermediate

frequency (IF) and 10.7 MHz 2nd IF. The PT-8000 incorporates high quality, state-of-the-art receiver

design, including:

1. An automatically tuned preselector which is a series tuned circuit from 1.8 to 30 MHz. The main

inductance is based on a T-200 toroid. Research has shown that the IMD characteristics

correlate with the mass of the material and the transformation ratio used. The IP3 of this

preselector is outstanding +50dBm. The series circuit is tuned through software by 5 inductor

taps (5 bit) and an 8-bit capacitor set. A noise generator is used to tune and store all settings in a

table. In order to enhance the filter characteristics the circuit is operating at approximately 3

ohms – there are down and up transformers at the input and output.

2. Precision-matched first and second mixers with third intercept points at +40 dBm. The mixers are

designed specifically for Hilberling by Synergy Microwave, a respected name in the industry.

3. Three 6-pole roofing filters at 2.7 kHz, 6 kHz and 12 kHz for outstanding inband IMD and BDR

performance.

4. Six hybrid amplifiers from LF to VHF with third intercept points at +50 dBm

5. The first local oscillator is designed with quadruple microwave VCOs which offer excellent phase

noise characteristics: -130 dBc/Hz at 10 kHz and –145 dBc/Hz at 50 kHz. The first local oscillator

design features microwave VCOs designed specifically for Hilberling. It includes a 0.05 ppm

reference oscillator with organic DDS. Phase noise suppression is enhanced by means of 300 Hz

crystal filtering.

6. The PT-8000 uses ultra-sharp 10.7 MHz IF filtering. The key to the receiver’s performance is its

seven 16-pole ladder filters working in combination with DSP filters in the 10.7 MHz second IFs

of each receiver. The filter shape factor is an excellent 1.3 at 2.4 kHz. The same high-quality

filters are used in the transmitter stages as well. 17 of these filters are used in the PT-8000.

A–2 Part A Introduction

1.2 Transmitter (TX)

The transmitter frequency scheme follows the receiver design. In addition, the transmitter is capable of

transmitting two sidebands independently (ISB-operation). For example, one can transmit an SSTV

signal on LSB and a voice (phone) comment on USB for example. The transmit power is 100 or even

600 Watts with enhanced filtering:

1. The PT-8000 transmitter stage starts with a Class-A 10 W driver amplifier operating from 1.8 to

150 MHz. IMD3 is less than –50 dB at 2.5 W.

2. The 100 W power amplifier utilizes a 50 V HF-MOSFET which is actually a “Gemini” package

hence comprising two HF-MOSFETs working push-pull (SD2932). This HF-MOSFET is capable

to dissipate 500 Watts and delivering up to 300 Watts output power. The PA of the PT-8000A is

limited to 100 Watts hence presenting a signal with outstanding IMD characteristics.

3. The 600 W final amplifier includes a pair of high-efficiency (70%) SD3933 HF-MOSFETs — a

breakthrough in transmitter design.

4. The PT-8000 assures clean output thanks to innovating filtering, including the use of additional

three 70.7 MHz roofing filters in the transmitter stages.

5. A diplexer-filter guarantees optimum performance of the finals. An automatic antenna tuner

(ATU) is an integral part of the output design. In terms of power handling capability of these

components there is no difference between the 100/600 W models.

6. For VHF operation (144 MHz to148 MHz) a 13,8 V VHF-MOSFET (RD70HVF1) is used,

designed to deliver 25 watts output.

1.3 Power Supplies And Growth Potential

The HN-8000 consists of switching power supplies with full power factor correction (PFC) as demanded

by many energy suppliers. It is capable of delivering up to 1,000 W 13.8/50 V DC-power for the PT-

8000 A. The HN-8000 designed for the PT-8000 B is capable of delivering up to 2,000 watts DC power

at 13,8/100 V supply voltage. Both power supplies are rugged in design and deliver ample power for the

PT-8000 series. The DC-input power can easily monitored with the large front panel power meter.

As your operating horizons expand and new demands occur, your PT-8000 will respond:

1. The PT-8000 is the ideal platform for exploring the world above 50 MHz. Not only does it offer

outstanding 6 and 2 meter transceiver performance, the PT-8000 is designed with UHF and

microwave transverters in mind. It offers 1 Hz frequency resolution and the ability to connect

transverters to both receivers simultaneously.

2. The PT-8000 provides output taps at the first and second IFs for analysis, monitoring and

experimentation.

3. The PT-8000 firmware is easily upgraded – as described in Part D of this manual.

PT-8000

C User Manual A–3

1.4 Technical Specifications

RX: Double Super Heterodyne 1st IF 70.7MHz and 2nd IF 10.7MHz

Range 9 kHz ... 54 MHz / 110 ... 170 MHz (MAIN / SUB)

Xtal-Filter 1st and 2nd IF (BW) 70.7 MHz (2.7 kHz / 6.0 kHz / 12.0 kHz) MAIN 10.698 / SUB 10.702 MHz (0.5 ... 6.0 kHz / 12.0 kHz)

Sensitivity @ 10 dB S+N/N AM FM SSB ISB CW

200 kHz ... 1.8 MHz 6 kHz / 2 µV 12 kHz / 0.5 µV 2.4 kHz / 1 µV 3.1 kHz / 0.5 µV 0.5 kHz / 0.5 µV

1.8 MHz … 54 MHz 6 kHz /1.2 µV 12 kHz / 0.25 µV 2.4 kHz / 0.22 µV 3.1 kHz / 0.4 µV 0.6 kHz / 0.15 µV

110 MHz ...170 MHz 6 kHz / 1.0 µV 12 kHz / 0.22 µV 2.4 kHz / 0.22 µV 3.1 kHz / 0.22 µV 0.6 kHz / 0.18 µV

IP3 @ 20 kHz 0.5 MHz ... 170 MHz +39 dBm

IMD DR3 @ Spacing @ 2 kHz 86 dB; @ 5 kHz 97 dB; @ 10 kHz 104 dB; @ 20 kHz 108 dB; @ 100 kHz 113 dB;

Image Rejection And Spurious Signal Suppression >>70 dB

Digital Signal Processing (DSP) Variable bandwidth for 2nd IF 10.7 MHz Xtal filters; multiple automatic audio notch filtering;

Almost undistorted audio when engaging automatic noise reduction through enhanced algorithms

AF-Output 4.8 Watt (2 x 2.4 Watt MAIN / SUB); additional speaker in HN-8000 and optional alternate speaker

TX: Independent Transmission Of 2 Sidebands – ISB

Range 1.8 MHz … 54 MHz; 144 MHz … 148 MHz (160, 80, 60, 40, 30, 20, 17, 15, 12, 10, 6, 2 m-Band)

Mode /Output (max.-HF; 6m) AM / AME / ISB / FM SSB/CW IMD3 (PEP) IMD3 (Class A)

PT-8000 A 100 Watt 100 Watt -40 dB 2.5 Watt / -50 dB

PT-8000 B 125 Watt 600 Watt -36 dB 2.5 Watt / -50 dB

PT-8000 C 2.5 Watt 10 Watt -36 dB 2.5 Watt / -50 dB

VHF PT-8000 A / B / C 25 Watt 25 Watt -36 dB 2.5 Watt / -50 dB

Carrier Suppression SSB / ISB – 70 dB / PEP

Opposite Sideband Suppression SSB / ISB – 70 dB / @1 kHz

FM Frequency deviation ± 3 kHz FMN; repeater operations with variable shift 0 ... 2 MHz

General

Memory Channels Organized in 3 banks @ 99 channels; automatic scanning mode

Frequency Stability 0.05 ppm from 10C° to 60 C°; Reference Clock 20 MHz adjustable in 12 mHz steps; Ext. Clock 10 MHz

Environmental Conditions Temperatures 10C° to 60C° Avoid high humidity (operating below dew point) and dusty operating

conditions

Antenna Connectors N-type 2 x HF 50 Ohm; 1 x VHF 50 Ohm

Dimensions (H x B x T) approximately 175 mm x 425 mm (543 mm including handles) x 465 mm

Weight approximately. 52 lbs

HN-8000 Switching Power Supply for PT-8000A/B/C

Mains

Power Requirement

90 … 260 VAC Power Factor Correction (PFC)

117 VAC / 13 Amp.; 240 VAC / 7 Amp.

PT-8000A DC 13.8 V / 10 Amp. , 50 V / 10 Amp.

PT-8000B DC 13.8 V / 10 Amp., 100 V / 12 Amp.

Dimensions approximately 175 mm x 225 mm x 440 mm

Weight approximately 15 lbs

Accessories

All Versions Cable set (AC, DC, Ground, Speaker)

Ham Version - Desk Microphone T9 600 Ohm @ 1kHz, dynamic, RFI-proof, kidney-shaped acoustic response

- set of plugs

Specification Professional Version

TX-range according to customers specification; extended temperature range; UL-listed and more.

For additional information and special requirements please contact Hilberling GmbH

Table 1

A–4 Part A Introduction

1.5 Operating Limitations

TBD

B–1

Part B Installation

3 U

NPACKING

NSTALLATION

ONSIDERATIONS

3.1 Unpacking

Examine your PT-8000 for signs of damage during shipping. Should any damage be apparent please

take appropriate measures (contacting your carrier). We recommend to retain all packing material – it

might be used for shipment of the radio.

Listed below are the hardware and all accessories delivered with your PT-8000. Make sure you´ve

received and unpacked everything:

Quantity Description Picture

1 Power Supply HN-8000 6

1 Microphone T9 7

1 AC Power Cord HN-8000 8

1 DC Power Cord HN-8000PT-8000 9

1 Ground Wire HN-8000PT-8000 10

1 Speaker Cabel HN-8000PT-8000 11

1 Phono Plug 6.3mm

2 Phono Plug 3.5mm

1 DB-25 Male Plug

1 DA-15 Male Plug

2 DE-9 Male Plug

1 RS232 Cabel For Software Update 12

4 Handles 15

1 Operating Manual

Table 2

3.2 About This Manual

The PT-8000 represents primarily state of the art analog RF-design. However digital signal processing

and microprocessor controlled circuits add to this transceiver in a synergistic way. Hence, features and

functions can be easily improved and/or tailored to customer needs through updating the Hilberling

GmbH firmware using the RS232 interface. Owners will be informed about firmware upgrades as they

are released – please have a look at chapter Part D.

The latest version of PT-8000 Operating Manual will be posted as a PDF-document at Hilberling GmbH

website (www.hilberling.de)

In this handbook the following signs and symbols are used:

The STOP sign indicates a warning that must be obeyed for safety reasons

This sign indicates an important explanation or a specific advice which

should be obeyed

An additional information or explanation is indicated this way

B–2 Part B Installation

3.3 Initial Installation Considerations

When selecting the place for operating the PT-8000 bear in mind the general limitation concerning

environmental conditions as outlined in the specifications and the cautions at the very beginning of this

manual.

Select a power outlet that is capable to handle the power requirements especially for the PT-8000B.

Connect your PT-8000 to a proper ground system – which is important for optimum operation of any HF

transceiver – especially when operating high power either with the PT-8000B or using an external

amplifier. In the past, a ground connection to a copper water pipe was often used for this purpose.

Recent revisions to the National Electric Code has made this practice a code violation. Bear in mind that

modern supply water installations utilize plastic pipe – which do not function grounding purposes. Never

use a gas or electric pipe since the connection could cause an explosion or electric shock.

A good grounding system not only prevents electrical shock but also helps to ensure trouble free

operation and will diminish television and broadcast interference (TVI/BCI).

For your convenience you might raise the PT8000 and the HN-8000 by unfolding and locking into

position the front stand under the cabinet as shown on the picture.

Allways handle the PT-8000 with care – consider the weight of more than 50 lbs, please!

3.4 Antenna Considerations

Standing wave ratio (SWR) may increase significantly when using an antenna outside of the specific

frequency range for which it is tuned. The final power amplifier will operate at peak performance only

when its load is resistive – i.e. the SWR is close to 1.0. Therefore the PT-8000 is equipped with an

automatic antenna tuner (ATU) which does not actually tune the antenna. The ATU instead matches the

feedline to the final amplifiers so they always “see” and SWR of 1.0. The ATU has its limits – tuning

mismatches with SWR greater than 2.0 become difficult and will exceed the capabilities of the ATU.

Using a tuned or resonant antenna with 50 Ohm impedance at the feedpoint for the specific frequencies

is highly recommended. The purpose of the ATU is to ensure that a resonant antenna can be used at the

limits of the band selected with optimum performance of both PT-8000 and antenna system. Never try to

hook up a symmetrical open feeder line (balanced, twin-lead, ladder line etc,) directly to the PT-8000.

Instead use 50 ohm coaxial feeders only. The connectors supplied on the PT8000 are all Type N.

With the ATU it is acceptable to use a broadband antenna system like a log periodic or T2FD system

which trade wide bandwidth for an SWR ranging as high as 2.0.

Picture 1

PT-8000

C User Manual C–3

4 C

ONNECTORS

4.1 Rear Panel

A variety of jacks are accessible at the rear panel. Please unfold Picture 1 - pointing out all connections.

HF/VHF-Connection Sockets J1 ... J11

No NAME Type Description

J1 VHF-ANT

110 … 170 MHz

N-Type Connect a VHF-Antenna for 110 to 170 MHz (RX) and 144 to 148 MHz (TX)

J1A RX-ANT

9 kHz ... 54 MHz

BNC Connect a VLF/HF/VHF-antenna for receive only from 9 kHz … 52 MHz / 54 MHz (USA). For DUPLEX

mode the input may stay open during transmission.

J2 HF-ANT.1

1.8 ... 52 MHz

N-Type Connect VLF/HF/VHF-antenna #1 frequency coverage 9kHz ... 52 MHz / 54 MHz (USA)

J3 HF-ANT.2

1,8 ... 52 MHz

N-Type Connect VLF/HF/VHF-antenna #1 frequency coverage 9kHz ... 52 MHz / 54 MHz (USA)

IF 10.7 MHz

SUB

SMA

Output 1st IF 70.7 MHz of SUB-RX. The output is tapped after the 1st mixer and the IF-amplifier HV20-200

– thus being broadband when preselector is disengaged

IF 70.7MHz

SUB

SMA Output 2nd IF 10.7 MHz of SUB-RX. The output is tapped after the 2nd mixer and IF-notch and noise

blanker circuit. No AGC and no 10.7MHz xtal filter at that point. Thus bandwidths are determined by roofing

filter.

IF 10,7 MHz

MAIN

SMA

Output 1st IF 70.7 MHz of MAIN-RX. The output is tapped after the 1st mixer and the IF-amplifier HV20-200

– thus being broadband when preselector is disengaged

J7 IF 70.7MHz

MAIN

SMA Output 2nd IF 10.7 MHz of MAIN-RX. The output is tapped after the 2nd mixer and IF-notch and noise

blanker circuit. No AGC and no 10.7MHz xtal filter at that point. Thus bandwidths are determined by roofing

filter.

J8 HF-RX ANT. 2

SMA J6/J7 disconnects RX (MAIN/SUB) from HF-ANT.2 – J6 is either connected to J7 or to output of external

equipment (QRM-eliminator, ANT-switch panel etc.)

J9 HF-RX ANT. 2

OUT

SMA HF-ANT.2 (in RX-mode) either connected to J6 or to input of external equipment (QRM-eliminator, ANT-

switch panel etc.)

J10 HF-RX ANT. 1

SMA J8/J9 disconnects RX (MAIN/SUB) from HF-ANT.1 – J8 is either connected to J9 or to output of external

equipment (QRM-eliminator, ANT-switch panel etc.)

J11 HF-RX ANT. 1

OUT

SMA HF-ANT.2 (in RX-mode) either connected to J8 or to input of external equipment (QRM-eliminator, ANT-

switch panel etc.)

Table 3

J1J2J3J5 J6 J4 J7

Picture 2

J11 J10

J9 J8

J1A

C–4 Part C Installation And Operation

Connection Sockets J12 … J22

No NAME Type Description

Banana Plug 4mm Grounding wire – must be connected toHN-8000 power supply E

M6 Grounding stud – must be connected to HN-8000 power supply and to station ground

J12 10 MHz Ref.

OUT

BNC Output for an external 10 MHz reference signal (clock) for synchronization of PT-8000 to

other equipment

J13 10 MHz Ref.

BNC Input of internal/external 10MHz reference clock (internal: derived from 20 MHz system

clock with 0.05 ppm) for synchronization of external equipment to PT-8000

J14 TX ext.

+20 dBm

BNC TX external output (1.8…148 MHz). Level is +20 dBm to drive transverter or external

power amplifier

J15 ext. SPKR

add.

EIA-453 / IEC 60603-11

Phone Plug / TRS 3.5mm

Additional external speaker output. Use to connect the speaker at HN-8000 in addition to

built in speaker

J16 ext. SPKR

alt.

EIA-453 / IEC 60603-11

Phone Plug / TRS 3.5mm

Alternate external speaker output. Use to connect an alternate speaker to the built in

system

J17 AUX-TX

(PTT/ALC)

DE-9

(D-Sub 9pol)

J18 DC

CliffCon

4-pol

Power connector for interconnection cable to HN-8000 power supply

J19 Keyboard

mini-DIN

PS/2 Connector

To be implanted later.

J20 AUDIO

IN/OUT

DA-15

(D-Sub 15pol)

To be implanted later.

J21 Transverter

DB-25

(D-Sub 25pol)

To be implanted later.

J22 Remote

RS 232

DE-9

(D-Sub 9pol)

Interface to update firmware of PT-8000

Table 4

J12 J13 J14 J16 J17 J18 J19 J20 J21 J22 J15

Picture 3

PT-8000

C User Manual C–5

Wiring of J15 … J22

Nr. Name Typ Function And Outline

J15

J16

ext. SPKR

add.

ext. SPKR

alt.

Connect an additional (PT-8000 speaker will stay ON) or an

alternate speaker (PT-8000 speaker will be OFF)

1 Tip + audio output (4,5 W max)

2 Ring + audio output

3 Sleeve GND

Caution: Using mono type plugs will shorten the

audio output and may damage the

transceiver

J17 AUX-TX

(PTT/ALC)

To be implanted later.

J18 DC

PT-8000A PT-8000B PT-8000C

1 (2-) 13,8 VDC 13,8 VDC 13,8 VDC

2 (1+) 50 VDC PA <Not Connected> <Not Connected>

3 (1-) GND GND GND

4 (2+) <Not Connected> 100 VDC PA <Not Connected>

J19 Keyboard

To be implanted later.

J20 AUDIO

IN/OUT

To be implanted later.

J21 Transverter

To be implanted later.

J22 Remote

RS 232

1 <Not Connected> 6 <Not Connected>

2 RS232 TX 7 RS232 RTS

3 RS232 RX 8 <Not Connected>

4 RS232 DTR 9 <Not Connected>

5 GND

Table 5

C–6 Part C Installation And Operation

Miscellaneous

DC-Fuse 13.8 V DC circuit breaker for final PA rated 13,8 V / 25 Amp. for PT-8000C and

50 V / 15 Amp. or 100 V / 15 Amp. for PT-8000A/B

TX-ALC Sensitivity of ALC input (J17, pin 6) from external PA to reduce TX power out.

AUDIO IN Sensitivity of Audio data input (J20, pin 2) – rated 0 dBm.

4.2 Connectors At Front Panel

Connection Sockets 1 ... 3

Nr. Name Typ Beschreibung

1 MIC-PTT

Microphone Socket

8-pol

Microphone connector for Hilberling T9 and Data input 0 dBm

2 PHONE

EIA-453 / IEC 60603-11

TRS 6.3 mm

Headphones low impedance (8 Ω). When plugged in the speaker(s) will be cut off.

NOTE: pushing the volume controls for MAIN and SUB will switch on the speaker(s)

momentarily

3 CW-KEY

EIA-453 / IEC 60603-11

TRS 6.3 mm

Keyer for CW

Table 6

1 2 3

Picture 4

PT-8000

C User Manual C–7

Wiring

Nr. Name Typ Funktion und Anschlussbelegung

1 MIC-PTT

0 dBm

1 MIC-Audio

2 PTT

3 RX-MAIN Audio (headset)

4 0 dBm IN

5 MIC IN +DC

6 RX-SUB Audio (headset))

7 MIC-GND

8 PTT-GND

2 PHONE

1 Tip + Audio OUT

2 Ring + Audio OUT

3 Sleeve GND

NOTE: Audio for PHONE is derived from audio preamplifier

especially designed for phone operations.

Caution: Using mono type plugs will shorten the

audio output and may damage the

transceiver

3 CW-KEY

1 Tip DOT CW-Key

2 Ring DASH <Not Connected>

3 Sleeve GND GND

STATUS: Keyer ON Keyer OFF

Table 7

5 P

OWER

UPPLY

5.1 General

Each model PT-8000 A/B is equipped with its appropriate power supply all named HN-8000. The only

difference in appearance for the PT-8000A-model and the PT-8000B-model is the final amplifier DC

input power instrument at the front panel.

The HN-8000 is a switching power supply with industry standard. It complies with special regulations in

some countries regarding power factor compensation (PFC).

Operating voltages from the mains can be in the range of 90 VAC to 260 VAC without any degradation in

output power. Only the efficiency will vary slightly. The HN-8000 operating temperature is controlled by

up to 4 fans (PT-8000B). The HN-8000 accompanied with the PT-8000A and PT-8000B delivers 50 VDC

@ 15Amps and 100 VDC @15 A for the high power B-model.

5.2 Rear Panel

Electret Mic

Dynamic Mic

C–8 Part C Installation And Operation

Connection Sockets J1 ... J5

Miscellaneous

AC-FUSE Circuit breaker for AC mains at rear panel plug J5 rated 16 A @ 90 … 270 V AC

5.3 Front Panel

Nr. Name Type Description

J1 AC IEC-60320-C13 Input main power 90 – 270V AC

J2/3 13,8 V DC Banana Plug 4 mm + Clamp Auxiliary output 13.8V DC

Banana Plug 4 mm Grounding wire – must be connected to PT-8000 transceiver

M6 Grounding stud – must be connected to PT-8000 transceiver and to station ground.

J4 SPKR 8 Ω EIA-453 / IEC 60603-11

Phonostecker / TRS 3.5 mm Input for built in speaker from PT-8000 J15 or J16

J5 DC CliffCon

4-pol

Power connector for interconnection cable to PT-8000 J18.

Table 8

E J4 J5

Circuit breaker for AC

Picture 5

PT-8000

C User Manual C–9

Miscellaneous

DC FUSE Circuit breaker for DC AUX at rear panel banana plugs J2/J3 rated 5 A @ 13.8 V DC

6 A

CCESSORIES

ON/OFF for DC Low Power

DC AUX

ON/OFF

DC Power Amplifier

DC-Fuse

AUX Power Meter

The power meter indicates

the DC input power of the

final power amplifier – hence

computation of efficiency

could be easily done by

comparing RF-power out as

indicated on PT-8000 display

and DC-input shown here.

Picture 6

C–10 Part C Installation And Operation

6.1 Microphone Hilberling T9

Best suited for all voice operations is the Hilberling T9 microphone especially

designed for the PT-8000.

Isolated from any mechanical vibrations and designed to be used from more

closer as well as from greater distance it will always guarantee high fidelity

audio and if desired an extra punch to the signal.

Impedance is 600 Ω @ 1kHz. The acoustic characteristic is kidney-shaped.

6.2 Wiring/Cables

AC-line voltage cable for HN-8000; length appr. 1,70 m

DC-cable HN-8000PT-8000; length appr. 1,10 m

Ground cable HN-8000PT-8000; length appr. 1,50 m

Speaker cable HN-8000PT-8000; length appr. 1,50 m

BILD fehlt RS232-data cable to connect a PC; length appr. 1,80 m

6.3 Pull Out Instruction

Picture 7

Picture 8

Picture 10

Picture 11

Bild 12

Picture 9

PT-8000

C User Manual C–11

Just pull out the two quick reference cards to obtain useful information – a quick operating reference and

A conversion table dBm – dBµV – S-units.

 Upper left hand card  Lower right hand card

6.4 Operating Manual

This Operating Manual Version 1.0

6.5 Handles

Two handles may attached to the PT-8000 easily

using the mounting material provided.

Picture 13 Picture 14

Picture 15

C–12 Part C Installation And Operation

–– This page is intentionally blank ––

Part C Installation And Operation

PT-8000

C User Manual C–13

NSTALLATION

ONNECTIONS

Prior to any operation of the PT-8000 read this Operation Manual carefully.

The PT-8000 will be delivered with the following presettings:

• The preselector is aligned and all data’s are stored in RX-CPU memory which is buffered through

a NiCd battery

• The transmitter is limited to the frequencies in compliance with FCC regulations

The default values for the operation variables are (these default values are set after a hard reset as well)

TBD

Prior applying main power to the power supply HN-8000 verify:

Rear panel

• Antenna(s) are connected properly

• Grounding stud is connected to station ground

• Grounding wire is connected to both PT-8000 and HN-8000

• DC-cable is connected to both HN-8000 and PT-8000

For initial operation we recommend not to connect external amplifier, transverter or devices for remote

operation.

Front panel

• Microphone attached

These controls ahould be set fully counter clockwise:

• Volume controls MAIN/SUB

• TX-RWR

• MIC-GAIN

• PROC

Power ON sequence PT-8000

• Turn ON both LINE and PA on HN-8000

• Turn ON POWER at PT-8000

The POWER switch at the PT-8000 does not switch the voltage from the PA

power supply. This is done by the PA switch at the HN-8000 only.

It is up to the operator to switch PA OFF during reception only.

8 F

RONT PANEL

ONTROLS

ISPLAY AND THEIR

UNCTION

8.1 Front Panel Controls

Volume MAIN- and SUB-RX

Speaker ONOFF

C–14 Part C Installation And Operation

Function NAME Description

Power ON/OFF POWER Main power is supplied through this switch.

Before turning ON verify audio volume settings for MAIN and SUB-RX are turned

counter-clockwise. After switching to ON:

 LED MAIN-RX will illuminate

 an intermitted beep will indicate that the initialization is in progress

 the display will stay dark completed (approximately 5 seconds) until the initialization process is

completed

Display ÷ The displayrepresents the primary means to control through soft switches and to show all relevant

data for RX and TX operations.

Volume MAIN-RX : MAIN Volume for audio MAIN-Receiver. The RX is always turned on – audio is always present

regardless of RX-status (active or in the background – see below). Pushing toggles the speaker

ON and OFF (depending on NORMAL or SPLIT Audio Mode – see page C42)

Volume SUB-RX : SUB Volume for audio SUB-Receiver. The RX is always turned on – audio is always present regardless

of RX-status (active or in the background – see below). Pushing toggles the speaker ON and OFF

(depending on NORMAL or SPLIT Audio Mode – see page C42)

Primary

Tuning Knob

÷ Tuning of VFO A/B of “active” RX. MAIN- and SUB-RX are always receiving. The term “active” is

used in the following context: “Active” means which RX (MAIN or SUB) is controlled by the main

Display (through soft switches) and which RX-Data is completely shown in the display.

Default setting: MAIN RX is the active RX

SUB VFO Tuning of VFO A/B of RX, which is not the „active“ one i.e. working in the Background (see

above). Default setting: SUB-RX is in the background

Secondary

Tuning Knob

REF-SET When operating the PT-8000 with an external reference (10MHz-clock) this control will allow

aligning the timing in small increments. This mode is indicated by the LED „EXT-REF“

Table 9

8.2 Display

The display of the PT-8000 shows relevant data of MAIN- and SUB-RX and the TX.

POWER

ONOFF TFT-Display Main Tuning

Tuning 2nd RX

LED for status

MAIN-RX / TX / SUB-RX

Softkeys

Picture 16

PT-8000

C User Manual C–15

• All settings fort the active RX

• Main settings for the non-active resp. for the RX

in the background

• General Data for RX and TX

• Functions to be activated by the adjacent keys

(Soft keys)

The keys right next to the functions depicted on the display are the so-called

„Soft keys“. They activate/select the functions named on the display. These

functions will vary with the menu selected through pressing different controls

on the front panel.

RX in background (here: SUB) with

limited access through controls

Selected VFO for RX in background

which is selected as

active

Note: Each VFO

setting includes

bandwidth and mode

SWR

Squelch Marker

S-Meter

Power Output Soft keys Function of Key

Selected VFO

Frequency + ID

(A or B)

Bandwidth 2nd IF

Filter allocated to

selected VFO

RX- ID (MAIN/SUB)

standby VFO

Frequency + ID

(A or B)

Selected VFO

allocated Mode

Mode Frequency Bandwidth of

2nd IF filters

DSP Filter Marker

RX ID

(MAIN/SUB

TRansVerter/CONVerter)

Band Information

or Linear Scale

Picture 17

ALC

Soft keys

and

Soft key menu

AMP AMP 7+ AMP 14+ . Preselect

Statusfield – display options

C–16 Part C Installation And Operation

A blank status field indicates that the corresponding

function is OFF (ATT; AMP; Presel; NB/NR; Notch etc.)

8.3 Clustered Front Panel Controls

TX 3-Band-Equalizer

if EQ-menu is selected

VOX ON

HF Mode

VHF Mode

DSP-

noise reduction

RX-

noise blanking

NR + NB

DSP-

Notchfilter

IF-

Notchfilter

DSP + IF

Notchfilter

for f ≥ 1.8 MHz

for f >7 MHz for f >14 MHz

available between f = 1.8 ...30 MHz

Preamplifier

Attenuator

Preselector

Selected antenne

Picture 18

RIT/XIT ON

LEVeler ON PROC ON PA TemperatureEQ ON

MAIN-CPU Temperature

PT-8000

C User Manual C–17

Various controls are clustered – indicated through

surrounding white boxes painted on the panel

8.4 Controls With Integrated Push-Button Function And Controls For Adjustments

BAND

– Select HF-Ham Band

Note: 60m not present

– Numerical input of

frequencies

ANT-TUNER and MOX

– Activation of Tuner

– Start tuning cycle

– Manual TX/ON - MOX

DISPLAY

– Select special MENU

DSP

Activation of

– Digital Filter

– Automatic Notch Filter

– Automatic Noise Reduction (NR)

FUNCTION

– Automatic Gain Control (AGC)

– Activate Scan Function

– Lock VFO

– toggle VFO A/B

– Activation of RIT/XIT

MODE

– Select VHF-Band

„0“- Key for numerical Input

– Select basic RX/TX- menu

– Storage of frequencies

– Filter selection (Xtal and DSP)

– STEP-VFO

– Activate numerical Input

– Selct RX (MAIN or SUB)

– Recall channels and Channel storage management

– Select mode (SSB/CW/AM/FM/DATA)

Picture 19

C–18 Part C Installation And Operation

8.5 Side Panel Controls

NOISE BLANKER

Activate

IF-NOTCH FILTER

Activate

SQUELCH threshold and

Override

RF-GAIN

AGC Off

Volume MONITOR

TX-Delay

Adjustments / settings for VOX

Sensitivity ANTI TRIP DELAY

ZERO BEAT

Activate

MIC-GAIN

VOX

PROCESSOR

Activate

TX-POWER

High/Low

CW Key Speed

Volume MAIN RX

Push function switches speaker

according to AUDIO Normal/Split

Volume SUB RX

Push function switches speaker

accordin

to AUDIO Normal/S

lit

See also AUDIO Menu on page C42

Filter WIDTH/SHIFT

toggle

STEP VFO MEM/CH

select digit select channel

Picture 20

Picture 21

PT-8000

C User Manual C–19

Left hand side

P2 coarse adjustment of microphone sensitivity

front panel 1: MIC-PTT pin 1/5

P6 adjustment of data input (0 dBm) sensitivity

front panel 1: MIC-PTT pin 4

The adjustment of sensitivity from MIC and

Data Input are twofold: coarse adjustment is

Done at an early stage right after the input

transformers. MIC gain settings from the

front panel controls amplifier and gain leveler

circuit on the TX board.

Right hand side

P1 coarse adjustment of audio volume MAIN-RX

front panel 1: MIC-PTT pin 3

P3 coarse adjustment of audio volume MAIN-RX

rear panel J20: AUDIO IN/OUT pin 5

P4 coarse adjustment of audio volume SUB-RX

front panel 1: MIC-PTT pin 3

P5 coarse adjustment of audio volume SUB-RX

rear panel J20: AUDIO IN/OUT pin 20

Use an appropriate tool to adjust the controls to prevent any damage to the

variable resistors

8.6 Keys With LED And LEDs

Picture 22

Picture 23

C–20 Part C Installation And Operation

Because the operator should be aware of some major functions whether they

are active or deactivated certain push buttons incorporate a LED:

MEM MENU

CHANNEL METER

DATA FILTER

LOCK NOTCH

RIT/XIT NR

TUNE AGC

START SCAN

The PT-8000 incorporates a transmitter and two independent receivers (MAIN

and SUB). Both receivers are permanently operating. Even if a receiver is „in

the background“ i.e. not fully accessible through all main controls the receiver

is operating with its last settings when it has been the „active“ one.

One transmitter and two receivers are operated in three main modes:

• MAIN-RX is active and SUB is working in the

background (green MAIN-RX LED is on)

• SUB-RX is active and MAIN is working in the

background (yellow SUB-RX LED is on)

• TX is operating (red TX-LED is on).

Note: The MAIN RX VFOs will always determine the transmit frequencies

The red LED EXT REF will be on when the PT-8000 20 MHz system clock is

no longer the internal one. An external 10MHz signal is representing the

frequency reference when this LED is on.

9 MAIN-

SUB-RX

PERATIONS

Picture 24

MAIN RX

and

SUB RX

PT-8000

C User Manual C–21

The PT-8000 incorporates a transmitter and two independent receivers (MAIN

and SUB). Both receivers are permanently operating. Even if a receiver is „in

the background“ i.e. not fully accessible through all main controls the receiver

is operating with its last settings when it has been the „active“ one.

Two controls are doubled, hence for these functions MAIN-/SUB-RX are

always accessible regardless of their status:

1. The selected VFO of the RX working in the background is always

accessible through SUB VFO.

2. The volume of MAIN- and SUB-RX are permanently adjustable through

the respective controls MAIN and SUB.

3. Both knobs have a “push” function: Depending on the AUDIO setting

NORMAL/SPLIT the audio from MAIN and SUB are allocated to the

speakers and are turned ON and OFF (see page C42)

The push button MAIN/SUB (see picture 27 page C11) toggles between the

two RX changing their status „active“ or „background“. During initial start up

the PT-8000´s MAIN-RX is the active one.

• LED MAIN-RX and LED SUB-RX indicate which

RX is the active one

• The Display shows in the upper left corner MAIN

or SUB

• Frequency, mode, filter bandwidths are

displayed for MAIN and SUB respectively

Activation of noise blanker, DSP, DSP-notch and the squelch marker are

displayed for the active RX exclusively.

Picture 25

Settings from

RX which is in

the active one

Settings from RX

which is in the

back

round

Picture 26

C–22 Part C Installation And Operation

When toggling between MAIN- and SUB-RX the actual settings of the controls

used at last are not transferred to the new active RX – instead the former

settings of this RX are the actual one – until they are overwritten by the

respective control.

The squelch threshold set to the RX working in the background will stay the

actual one when this RX becomes the active – until one touches the squelch

control to set the threshold to a new setting.

The large S-meter is always allocated to the active RX. The smaller S-meter

is indicating the fieldstrenght of the RX working in the background.

Pressing PTT when SUB-RX is the active one will toggle MAIN- and SUB-RX

instantaneously. As mentioned before only the MAIN-RX can operate with the

TX as a transceiver.

When transmitting SUB-RX may be used to monitor own RF-signal. Receiving

with SUB-RX on a separate antenna is limited however: Excessive field

strength may trip the protection circuits. Receiving at frequencies adjacent to

the tranmitting frequency may be limited even by the superior dynamic

characteristics of the PT-8000 receivers - which are of course finite.

Example

PT-8000

C User Manual C–23

SSB/CW menu

10 M

ODES

PERATION

(MODE)

In order to select different modes pushbuttons are available (see Figure ….)

in the clustered area MODES:

• SSB / CW (where ISB is selectable)

• AM / FM

• DATA

When SSB/CW or AM/FM is pressed the last selected mode (SSB/CW or

AM/FM) is memorized and reactivated. The display shows the activated mode

inverse.

10.1 SSB / CW (Single Side Band / Continuous Wave)

Pressing SSB/CW will call up the SSB/CW soft key menu:

10.1.1 SSB (Single Side Band)

Upper Side Band

Lower Side Band

Continuous Wave normal mode (CW-pitch in USB)

Continuous Wave inverse mode (CW-pitch in LSB)

Independent Side Band – the ISB menus will appear (see below)

Cyclic change of frequency tuning steps:

→ 1 Hz → 10 Hz → 100 Hz → 1 kHz →

Picture 27

Picture 28

C–24 Part C Installation And Operation

10.1.2 CW (Continuous Wave)

When CW or CW- is selected pushing the WIDTH/SHIFT control will cycle

between Pitch – Width – BFO. Turn WIDTH/SHIFT to control:

Pitch - will change the beat frequency of the received signal. At the same

time the center frequency of the DSP-filter is shifted accordingly.

Range 400 … 1000 in 50 increments

Width – will change the DSP-filter width with following values:

50 / 100 / 200 / 400 / 500 / 600 Hz

When DSP is disabled: 500 Hz fixed.

BFO – will change the beat frequency of the CW signal from –250 Hz to

+250 Hz in 10 Hz increments without changing the center frequency of the

DSP filter.

PT-8000

C User Manual C–25

ISB Menü

10.2 ISB (Independent Side Band)

During independent sideband operations MAIN- and SUB-RX are tuned to the

same frequency but on different sidebands. Both sidebands are transmitted

and modulated independently.

Pressing ISB will call up the ISB menu:

„0dBm“ input (connected to MIC jack) will be transmitted on USB/LSB –

depending on status of ISB NORM/INV

DATA input (connected to J17 on rear panel) will be transmitted on USB/LSB

– depending on status of ISB NORM/INV

ISB normal - 0dBm or DATA input are transmitted on USB. Voice will be on

LSB

ISB inverse - 0dBm or DATA input are transmitted on LSB. Voice will be on

USB

In ISB mode one sideband is selected for transmission of data either trough

„0dBm“ or „DATA“ input either on USB (ISB normal) or LSB (ISB inverse).

The other sideband will always transmit the voice signal fed trough the MIC-

jack at the front panel.

10.3 AM / FM (Amplitude Modulation / Frequency Modulation)

Picture 29

C–26 Part C Installation And Operation

AM menu

FM menu

Pressing AM / FM will place the PT-8000 in AM/FM mode whatever has been

the last mode. If the mode is already AM or FM the alternate mode will be

activated.

The according soft key menu (AM or FM) will be called up.

Amplitude Modulation (carrier and two sidebands)

AM Synchronous (carrier and Lower Sideband)

AM Synchronous (carrier and Upper Sideband)

AM single sideband (AME – AM Equivalent) (carrier and Lower Sideband)

AM single sideband (AME – AM Equivalent) (carrier and Upper Sideband

Cyclic change of frequency tuning steps:

→ 1 Hz → 10 Hz → 100 Hz → 1 kHz →

Frequency Modulation (standard mode)

FM repeater mode. The transmit frequency is lower than the receive

frequency (standard). Frequency shift default value is 600 kHz

FM repeater mode. The transmit frequency is higher than the receive

frequency (inverse). Frequency shift default value is 600 kHz

Press and hold to monitor the transmit frequency – squelch is

deactivated ; RX RPT is displayed inverse.

(Only available if repeater mode is selected)

Press to set the frequency shift for repeater mode (see note below)

Cyclic change of frequency tuning steps:

→ 1 Hz → 10 Hz → 100 Hz → 1 kHz →

How to set the repeater frequency shift

Picture 30

Picture 31

PT-8000

C User Manual C–27

If the soft key SET RPT is depressed

• SET RPT will be inverse

• VFO display will show actual transmit frequency

• Set VFO to desired transmit frequency hence

define the shift within a tuning range from 0 …

2.000kHz.

The frequency resolution selected for the VFO

will apply for this setting.

• Pressing the SET RPT pushbutton again will

terminate the SET RPT modus.

Changing to a different mode will terminate SET RPT as well.

Numerical frequency input not possible

10.4 DATA Transmission

C–28 Part C Installation And Operation

DATA menu

Picture 32

Pressing DATA will call up the DATA soft key menu:

• DATA - LED will turn on

• If ISB mode is activated the ISB menu will be

called up. Otherwise the following menu will be

displayed

•

Signals at the 0dBm input will be transmitted

Signals at the DATA input will be transmitted

TX 0dBm and TX DATA are working alternatively. Only one signal can be

selected

DATA mode may be selected in all modes

If DATA mode is not selected PTT through RS232 handshake signal is not

possible

Pressing the DATA pushbutton again will terminate the DATA modus but only

if the DATA menu is displayed. Call up of this menu is mandatory for the

termination. After termination the DATA-LED will be off.

11 S

ELECTING

REQUENCIES

Termination of

DATA Operation

PT-8000

C User Manual C–29

To select a frequency four different means are available:

7. Select a BAND

8. Numerical input

9. Recall from a channel

10. Tuning with VFO

11.1 BAND select

11.1.1 HF BANDS

Pressing a BAND pushbutton selects one of

two stored frequency within the desired BAND.

The last used frequency of this BAND will be

recalled. Pressing BAND again will toggle

between the last two frequencies used within

this BAND.

In case the BAND limits are exceeded trough

tuning the last valid frequency that has been

stored will remain.

Mode and bandwidth are stored together with the respective frequency.

The following BANDS are defined in the PT-8000 software

Pushbutton Band Frequencies

1.8 1 160 m 1.800 ... 2.000 MHz

3.5 2 80 m 3.500 ... 4.000 MHz

n/a 60 m 5.3305 / 5.3465 / 5.3665 / 5.3715 / 5.4035 MHz

7.0 3 40 m 7.000 ... 7.300 MHz

10 4 30 m 10.100 ... 10.150 MHz

14 5 20 m 14.000 ... 14.350 MHz

18 6 17 m 18.068 ... 18.168 MHz

21 7 15 m 21.000 ... 21.450 MHz

24 8 12 m 24.890 ... 24.990 MHz

28 9 10 m 28.000 ... 29.700 MHz

0 VHF + Soft key 6 m 50.000 ... 54.000 MHz

0 VHF + Soft key 2 m 144.000 ... 148.000 MHz

Table 10

Picture 33

Formatted: Bullets and Numbering

C–30 Part C Installation And Operation

VHF menu

A numerical input of a frequency within the selected band will overwrite one of

the two stored frequencies (the last frequency used).

The two stored frequencies of a band are correlated to each VFO. Selecting

the alternate VFO will give access to another two frequencies in that band

(which were used with this VFO). Of course this is applicable for both MAIN-

and SUB-RX.

11.1.2 VHF-Bands

Two VHF-bands are covered – 6m (50 MHz) and 2m (144 MHz). Pushing

0 VHF (located in the cluster MODE) will call up the VHF menu and will recall

the last frequency used in VHF (50 MHz or 144 MHz). The respective band

will be displayed inverse. Like on HF the last two frequencies used on VHF

are recalled through the band pushbutton 0 VHF.

If a transverter has been used the last time VHF was activated the respective

softkey will be displayed inverse. The specific transverter will be activated

again.

Activates 6m band (here it is activated). Pushing repeatedly will toggle

between the last two frequencies used in this band

Activates 2m band. Pushing repeatedly will toggle between the last two

frequencies used in this band

Activates transverter #1

Activates transverter #2

Activates transverter #3

VFO menu will be called up

After selecting a tranverter the last used tranverter frequency will be displayed

and the tranverter menu will be called up.

Only one transverter can be activated at a time for each of the receivers. To

operate two transverters MAIN- and SUB-RX must be allocated to different

transverters.

11.1.3 Transverter Operation

Picture 34

PT-8000

C User Manual C–31

TRANSVERTER menu

Picture 35

Pushing Trans 1 softkey (VHF menu) will call up allocated Transverter menu

(same applies to the other transverter settings):

Transverter operation 28 MHz band (28 ... 30 MHz)

Transverter operation 50 MHz band (50 ... 52 MHz)

Transverter operation 144 MHz band (142 ... 148MHz)

The allocated band for the transverter will be displayed inverse. If the soft key

is pushed and held the transverter operation frequency band are displayed

instead of the standby VFO frequency.

• Call up VHF menu (pushing = VHF)

• Select transverter #1 … #3

• Selects transverter band – push and hold

respective soft key

Changing of

allocated

transverters

Picture 36

C–32 Part C Installation And Operation

The display shows instead of standby VFO frequency the transverter

operation frequency band. Using control STEP VFO / MEM/CH gives access

to all transverter operation frequency bands as listed below.

Frequencies

432 ... 434 MHz

435 ... 437 MHz

1.268 ... 1.270 GHz

1.296 ... 1.298 GHz

2.320 ... 2.322 GHz

3.400 ... 3.402 GHz

3.456 ... 3.458 GHz

5.760 ... 5.762 GHz

10.368 ... 10.370 GHz

10.450 … 10.452 GHz

24.048 … 24.050 GHz

47.088 ... 47.090 GHz

75.976 ... 75.978 GHz

Table 11

When operating with transverters the TX signal is only available at TX-ext.

J14 at the rear panel. Max. power level at J14 is +20dBm. Hooking up

multiple transverters requires external distribution of TX signals from TX-ext.

J14

Transverter Operation

Frequency Bands

PT-8000

C User Manual C–33

ENTER menu

11.2 Numerical Frequency Input

Pressing ENTER (located in the cluster MODE) will activate the numerical

frequency input.

When pressing ENTER

• The frequency display will show blanks for all

digits. A cursor indicates which field can be

edited.

The number of blanks/digits shown depends on the resolution selected

(see10.4 VFO menu).

• Pressing the respective numbers from 1.8 1 to

28 9 allocated to the BAND buttons (located in

the cluster BAND) and 0 VHF (located in the

cluster MODE) will insert the digits from left to

right.

• The ENTER menu will call up

Pushing ESC soft key will terminate the numerical input. The last used

frequency will be displayed instead. The last used menu will be called up

Pushing  deletes the last numerical input. The curser will reappear at the

position

Pushing ENTER soft key acknowledges the frequency input. The last used

soft key menu will be called up.

Pi t 37

Picture 38

Picture 39

C–34 Part C Installation And Operation

It is not necessary to key all digits. Pushing ENTER after the last digit will set

all lower digits to zero. After a valid numerical input is acknowledged the

frequency will be displayed and the respective RX will operate on that

frequency.

After the least significant digit is typed in the numerical input is terminated and

the frequency is transferred to the respective VFO.

In case the input is not acknowledged through ENTER soft key or finished

after 10 seconds the numerical input will be terminated and the last frequency

used will be selected again. The last used soft key menu will be called up.

In case the input frequency is a valid BAND frequency one of the stored

frequency in that BAND will be overwritten by the numerical input.

PT-8000

C User Manual C–35

CHANNEL menu

11.3 CHANNEL Operation

Pressing CHANNEL (located in the cluster MODE) gives access to 3 banks

of memory channels each storing 99 frequencies

When pressing CHANNEL

• the last used channel will be activated.

• the CHANNEL LED will be on

• the CHANNEL menu will be called up

• The frequency of the standby VFO will

disappear. Instead information about the active

channel are displayed (see page C24)

When a CHANNEL is selected toggling between MAIN-/SUB-RX and VFO-

A/B is inhibited

The Channel softkey menu offers the following function:

Selecting bank #1

Selecting bank #2

Selecting bank #3

Select (earmark) actual channel for SCAN-Modus

Writing channel to selected VFO (A or B) from active RX (MAIN or SUB)

Writing frequency of selected VFO (A or B) to selected channel

Picture 40

Picture 41

C–36 Part C Installation And Operation

PT-8000

C User Manual C–37

After selecting the memory bank (#1 … #3) the control MEM/CH / STEP-VFO

gives access to the 99 stored frequencies.

Both MAIN- and SUB-RX can read and write into the memory

Channels which are selected for SCAN operation are marked by an asterisk

(*). If the frequency of the marked channel lies within the SCAN boundaries it

will be used for SCAN operations.

Pushing CHANNEL again will terminate the CHANNEL operation:

• the last used VFO frequency will be activated

• the channel menu will be called up again in case

a different soft key menu was activated during

channel operations

• otherwise the channel soft key menu will be left

and the last used soft key menu will be called up

• the CHANNEL LED will be off

CHANNEL

information display

Termination of

CHANNEL Operation

Bank # Channel # Mode Bandwidth Stored Frequency SCAN identifier

Picture 42

C–38 Part C Installation And Operation

VFO menu

11.4 MAIN Tuning Knob

Primary means of tuning the active RX (Main- or SUB-RX) is the main tuning

knob.

General frequency coverage is 9 kHz to 54 MHz and 110 MHz to 170 MHz.

Due to the frequency scheme of the PT-8000 the frequency from 54 MHz to

110 MHz is blanked out.

Transmit operation is only possible on the allocated amateur radio bands (see

Tab on page C20)

In case the transmit boundaries are to be modified (commercial application;

new amateur radio frequencies) please contact Hilberling GmbH for further

information about a software update.

The tuning increments are adjustable through STEP selection, which is

allocated to the VFO soft key menu.

STEP up (towards fine tuning) decreases the tuning increments by power of

10. Additional digits appear at the VFO frequency readout

STEP down (towards coarse tuning) increases the tuning increments by

power of 10. Lesser digits appear at the VFO frequency readout

The selectable increments are 1 Hz / 10 Hz / 100 Hz / 1 kHz.

Not displayed digits are set to 0.

VFO frequency displayed Transceiver-Frequency Tuning with

1.234.567 1.234,567 kHz 1 Hz increments

1st pushing STEP up

1.234.56 1.234,560 kHz 10 Hz increments

2nd pushing STEP up

1.234.5 1.234,500 kHz 100 Hz increments

3rd pushing STEP up

1.234 1.234,000 kHz 1 kHz increments

Table 12

Example

Picture 43

PT-8000

C User Manual C–39

Pushing STEP down will initiate the reverse process towards fine tuning

Each mode has been allocated a default tuning increment setting

 AM / FM: 100 Hz

 SSB / CW: 10 Hz

Changing modes will reset the current setting to the default values.

11.5 STEP-VFO Control

The STEP-VFO Control is placed in the cluster MODE. The control enables to

tune in 10 kHz, 100 kHz and 1 MHz increments.

Pushing the knob activates the STEP-VFO function:

• A curser appears at the 100 kHz digit of the

frequency display.

Turning the knob will now tune the VFO by 100 kHz steps. Pushing the knob

a second time will move the curser to the 10 kHz digit. Turning the knob will

result in tuning the VFO by 10 kHz steps. Pushing the knob another time will

display the curser under the 1 MHz digit – hence tuning can now be

established by 1 MHz steps.

Pushing the knob again will result in a movement of the curser again to the

100 kHz digit, then 1 kHz and 1 MHz again.

Neither pushing the knob nor turning the control for more than 3 seconds will

terminate the STEP-VFO function. If re-activated by pushing the knob the

cursor will be at the place used at last.

When power up the PT-8000 the curser will initially alway occur at the 100

kHz (default value) position when activating STEP-VFO.

Picture 44

Picture 45

C–40 Part C Installation And Operation

11.6 VFO Management

Both receivers (MAIN- and SUB-RX) have its own VFOs – VFO A

and VFO B. Switching between VFO A and VFO B is established

through VFO A/B pushbutton. The button is located in the cluster

VFO.

In addition to the frequencies the VFOs store the filter

(bandwidth) and mode information.

When pressing VFO A/B:

• In case the VFO softkey menu is already

displayed the respective RX will change its VFO

(A=>B or B=>A).

• If a different softkey menu is displayed the first

push of VFO A/B will call up the VFO softkey

menu. The second push will alter the VFO A an

VFO B.

• Both frequencies displayed for the active RX will alter its

position. The white display always shows the selected

VFO. The VFO can be identified through the red

nominators A/B.

• The smaller green display always shows the alternate

VFO that is not selected and in red its identifier.

Only the SUB-RXs selected VFO frequency is displayed without its identifier.

Active RX

(shown MAIN-RX)

selected VFO (shown VFO A)

RX in background

(shown SUB-RX)

uenc

of selected VFO

Picture 46

Picture 48

Picture 47

PT-8000

C User Manual C–41

VFO menu MAIN

VFO menu SUB

The VFO softkey menu offers the following function:

The frequency of the selected VFO (shown VFO B) from the active RX

(shown MAIN-RX) is copied to the selected VFO from the SUB-RX

The frequency of the selected VFO (shown VFO B) is copied to the alternate

VFO

VFO SPLIT: The Frequency of the selected VFO (shown VFO B) will be used

for receive; the alternate VFO (shown VFO A) will determine transmit

frequency

SPLIT operation using VFO A and VFO B (= “VFO SPLIT”) is only possible

with the MAIN-RX.

The frequency of the selected VFO (shown VFO B) from the active RX

(shown SUB-RX) is copied to the selected VFO from the MAIN-RX

The frequency of the selected VFO (shown VFO B) is copied to the alternate

VFO

VFO SPLIT not applicable for SUB-RX

Picture 49

Picture 50

C–42 Part C Installation And Operation

11.7 SPLIT Operation

There are various ways to split between transmit- and receive frequencies.

Keep in mind that the PT-8000 represents a transmitter with two identical

receivers. However, to link a receiver with the transmitter as a transceiver is

only possible with the MAIN-RX. Hence only the MAIN-RX VFOs can

determine the transmit frequency.

Three ways for SPLIT operation are available:

• Operating with MAIN-RX using SPLIT VFO

function as described in 11.6.

This is the “regular” method which gives you

quick access to the desired SPLIT.

This way the resources of the PT-8000 are used

economical.

• Tuning MAIN-RX on the desired transmit

frequency and using SUB-RX for receive.

This way you can listen to the transmit and to the

receive frequency simultaneously which can give

some advantages in difficult (crowded)

environments. However all resources of the PT-

8000 are used. The SUB-RX can not be tasked

with other valuable operations like band

monitoring, transverter operation etc.

• Using MAIN-RX and detuning RX or TX through

RIT and XIT.

The least elegant method. SPLIT is limited to

10kHz.

SPLIT Operation using VFO SPLIT function

Tune with VFO A to the station you would like to call. Select VFO B and tune

to the desired transmit frequency. Make sure the same mode is selected.

Reselect VFO A. Press SPLIT. Now VFO A is for receive and VFO B is for

transmit.

Of course you can tune with VFO B to receive and tune VFO A to the

(split)transmit frequency. Selecting SPLIT will always chose the alternate VFO

for transmit. Pressing VFO A/B will alternate RX and TX frequencies.

Pressing SPLIT again will terminate SPLIT operation.

The actual operating frequency in RX/TX will always be displayed as the

selected VFO frequency; i.e. during SPLIT the display will change with T/R

switching.

SPLIT Operation using MAIN-RX and SUB-RX

Tune with SUB-RX (either VFO) to the station you would like to call. Tune with

MAIN-RX to the desired transmit frequency. You can monitor the stations

calling and the station to be called simultaneously. This might give

advantages in crowded environments. Use the volume control for MAIN and

SUB to adjust convenient monitoring.

SPLIT Operation using RIT/XIT

Tune with MAIN-RX to the frequency of the station you want to call. Engage

XIT and select an offset that you desire to call the station.

PT-8000

C User Manual C–43

RIT/XIT menu / RIT/XIT offset

Tune MAIN-RX to the desired transmit frequency to call a station that works

split. Engage RIT and tune RIT to receive the station you want to call.

The offsets for XIT/RIT are limited to 9.999kHz.

11.8 RIT / XIT

RIT (Receiver Incremental Tuning) allows to shift/adjust the receiving

frequency plus/minus 9.999 kHz from the transmit frequency. The MAIN-RX

and the transmitter are no longer „transceive“. RIT is only possible with the

MAIN-RX.

XIT (Transmitter Incremental Tuning) allows to shift/adjust the transmitting

frequency plus/minus 9.999 kHz from the receiving frequency. The MAIN-RX

and the transmitter are no longer „transceive“. RIT is available with the MAIN-

RX only.

The tuning range of RIT/XIT is always plus/minus 9.999 kHz

When pushing RIT/XIT located in the cluster VFO:

• RIT/XIT-LED will be on

• The RIT/XIT softkey menu will be called up - RIT

or XIT are displayed inverse to show status

• CLAR control is enabled

• RIT or XIT and the offset is displayed right next

to the frequency

In case of RIT only the display will show the actual frequency resulting from

the RIT offset. During XIT always the receiving frequency will be displayed.

The status RIT or XIT will be shown in the display together with the offset

adjusted.

Activate RIT (shown)

Activate XIT

Clear the offset to 0

Only for RIT: resulting

RX fre

uenc

Offset RIT and XIT RIT or XIT

Pi t 51

Pi t 52

C–44 Part C Installation And Operation

When activating RIT/XIT the last used status (RIT or XIT) will be selected.

Pushing RIT/XIT again will terminate the RIT/XIT function.

To adjust the offset frequency turn the knob called CLAR (clarifier) located

next to the cluster VFO.

The tuning increments of the CLAR control is identical to the selected STEP

rate.

RIT/XIT are not available for SUB-RX.

In case the SUB-RX is the active oneXIT/RIT and the offset are no longer

displayed.

In case the SUB-RX is the active one and XIT is activated for the MAIN-RX,

pushing PTT will display the MAIN-RX as the active one. XIT and the offset

are indicated.

If the RIT/XIT softkey menu is displayed pushing RIT/XIT will terminate this

modus. If the menu is not displayed pushing RIT/XIT will call it up and a

second push will terminate ROT/XIT operation.

The RIT/XIT-LED will extinguish.

Changing MODE will always terminate RIT/XIT operation

11.9 LOCK Function

All controls that will have an effect on the frequency selected can be locked

through pushing LOCK which is located in the cluster VFO.

Engaging LOCK will turn its LED on

The following controls (knobs, buttons) are effected by LOCK:

• MAIN-RX VFO

• SUB-RX VFO

• STEP-VFO

• BAND

• CHANNEL / MEM

• RIT / XIT

Termination of

RIT/XIT operation

Pi t 53

Picture 54

PT-8000

C User Manual C–45

MEM menu

• MAIN / SUB

• VFO A / B

• MODE

Pushing LOCK again will terminate locking of controls.

12 M

EMORY

PERATION

(MEM)

Pushing MEM in the cluster MODE will store the frequency of the active RX to

one of the 99 memories organized in thee banks.

Other than CHANNEL operation (see page C-23) the RX will stay on its tuned

frequency while MEM functions are executed.

• MEM-LED will be on

When activating MEM toggling between MAIN- and SUB-RX and VFO-A/B

are inhibited.

• MEM softkey menu will be called up:

Selecting bank #1

Selecting bank #2

Selecting bank #3

Write displayed VFO frequency of active RX to selected memory (see below).

MODE and filter selection will be stored as well.

Picture 55

Picture 56

C–46 Part C Installation And Operation

Display Information

Pushing softkey BANK 1, BANK 2 and BANK 3 gives access to other banks.

Use MEM/CH to select desired memory/channel. Pushing softkeys VFO >

MEM“ will write the VFO frequency to the selected memory.

Always the last used bank # is selected and displayed with its first empty

memory

In case all memories are written the last used memory will be displayed and

overwritten.

• The frequency display of the standby VFO will

be substituted by the information shown below:

Memories are accessible from both MAIN- and SUB-RX.

When attempting to overwrite memories there will be no warning.

If the MEM softkey menu is displayed pushing MEM will terminate this modus.

If the menu is not displayed pushing MEM will call it up and a second push

will terminate MEM operation. MEM-LED will turn off.

Bank # Memory # Mode Bandwidth Stored Frequency SCAN Marker

Pi t 57

Termination of

MEM modus

PT-8000

C User Manual C–47

13 F

ILTER

ANDWIDTH AND

HIFT

UNCTION

IDTH

HIFT

)

Filtering in the PT-8000 is obtained by Roofing Filters (1st IF @ 70.7 MHz)

and Channel Filters (2nd IF @ 10.7 MHZ). The channel filters can be further

enhanced by a DSP (Digital Signal Processing) working in the audio range.

The DSP filtering will:

• Interpolate between analogue filter bandwidths

• Sharpen the filter flanks

• Shift the placement of the filters

Acitvating DSP filtering is accomplished by the pushbutton FILTER in the

cluster called DSP. If DSP filtering is engaged, FILTER-LED is on.

After power on the DSP filters are off (Default value).

Appropriate roofing filters are selected automatically

WIDTH and SHIFT control located in the cluster MODE is used to adjust the

filter bandwidth and to shift the passband across the spectrum.

Pushing the knob will toggle between WIDTH and SHIFT function.

In case the FILTER-LED is off only the analogue (Xtal) filters are active. The

selected bandwidth is dispayed and graphically expressed.

The position of the passband relative to the carrier frequency (represented by

a vertical line) is indicated as well.

Pushing FILTER button will activate the DSP. Additional filter will enhance the

overall filter response:

FILTER-LED will be on

The display will indicate DSP operation

Depending on the MODE there are analogue filters available which are

interpolated in bandwidth by the DSP.

Pi t 58

Picture 59

C–48 Part C Installation And Operation

Depending on MODE the following Xtal-filters (analogue filters) and passband

shifts are available (using WIDTH and SHIFT control):

Width 1.8 / 2.0 / 2.4 / 2.7 / 3.1 / 6.0 kHz

Shift 100 Hz - 600 Hz in 100 Hz steps

The 2.7 kHz filter is the allocated roofing filter for SSB

Width 0.5 / 1.8 kHz

Shift/Pitch 400 Hz – 10000 Hz in 100 Hz steps

The 2.7 kHz filter is the allocated roofing filter for CW

Width 6.0 / 15 kHz

Shift n/a

The 6.0 and 12.0 kHz filter are the respective roofing filter for AM

Width 6.0 / 7.5 / 15.0 kHz

Shift n/a

The 6.0 / 7.5 and 12.0 kHz filter are the respective roofing filter for FM

For 7.5 and 15.0 kHz the 10.7 MHz Xtal filters are bypassed.

For FM the “bandwidth” is related to the audio response only; RF-bandwidth

remains always 6 or 12 kHz respectively

Depending on MODE the following bandwidths (through the combination of

digital and analogue filters) and passband shifts are available (using WIDTH

and SHIFT control):

Width 1.0 / 1.2 / 1.4 / 1.6 / 1.8 / 1.9 / 2.0 / 2.1 / 2.2 / 2.3 / 2.4 / 2.5

2.6 / 2.7 / 2.8 / 2.9 / 3.0 / 3.1 / 3.2 / 3.3 / 3.4 / 3.5 / 4.6 / 6.0 kHz

Shift 0 Hz – 600 Hz in 50 Hz steps

The 2.7 kHz filter is the allocated roofing filter for SSB

Width 50 / 100 / 200 / 400 / 500 / 600 / 800 / 1000 Hz

Shift/Pitch 400– 1000 Hz in 50 Hz steps

The 2.7 kHz filter is the allocated roofing filter for CW

Width 4 / 5 / 7 / 8 kHz

Shift n/a

The 6.0 and 12.0 kHz filter are the respective roofing filter for AM

Width 2.4 / 2.5 / 2.6 / 2.7 / 2.8 / 2.9 / 3.0 / 3.1 / 3.2 / 3.3 / 3.4 / 3.5

4.6 / 6.0 / 7.5 kHz / 8.0 kHz (Bypass)

Shift n/a

The 6.0 and 12.0 kHz filter are the respective roofing filter for FM

For > 4.6 kHz the 10.7 MHz Xtal filters are bypassed.

For FM the “bandwidth” is related to the audio response only; RF-bandwidth

remains always 6 or 12 kHz respectively

DSP OFF

LSB/USB

DSP ON

LSB/USB

PT-8000

C User Manual C–49

14 N

OTCH

OISEREDUCTION

OISEBLANKER

14.1 Notch Filter Functions

Two Notch filter of different type are available in the PT-8000. One is working

at 1st IF 70.7 MHz – it´s the classical type of manual notch filtering using a

Xtal bridge – the IF-NOTCH. The other one is part of the DSP – it´s an

Automatic Notch Filter (ANF) – here called the DSP NOTCH.

DSP NOTCH and IF-NOTCH may be engaged simultaneously.

Notch filtering is not available in AM and FM. In case NOTCH filtering is active

and modes are changed to AM/FM both NOTCHs will cease operation.

After power on both NOTCH filters are off (Default value).

14.1.1 IF-NOTCH

The IF-NOTCH will be activated by pushing the control IF-

NOTCH which is located as depicted. On the display it is

outlined as NOTCH 2.

• The display will show NOTCH 2

• Turning IF-NOTCH will adjust the varable notch

through the passband hence the interference will

be almost nullified.

14.1.2 DSP-NOTCH

Pushing the button NOTCH located in the cluster DSP will activte the

automatic notch filtering. On the display the DSP NOTCH is outlined as

NOTCH 1.

The DSP will now detect even multiple interferences and will cancel them

effectively.

• DSP NOTCH-LED will be on

• The display will show NOTCH 1

Picture 60

Picture 61

Picture 62

Picture 63

C–50 Part C Installation And Operation

14.2 Noise Reduction

Pushing the button NR located in the cluster DSP will active the Automatic

Noise Reduction (ANR or NR). On the display the DSP NR is outlined as NR.

• DSP NR-LED will be on

• The display will show NR

After power on NR is off (default value)

14.3 Noise Blanker

The RX-NB will be activated by pushing the control RX-NB

which is located as depicted. On the display it is outlined

as NB.

• The display will show NOTCH 2

Turning the RX-NB control will adjust the threshold of the noise blanker to the

specific situation. Noise is dramatically reduced hence improving the

readability of weak signals.

After power on NR is off (default value)

15 S

QUELCH

Picture 64

Picture 65

Picture 66

Picture 67

PT-8000

C User Manual C–51

The SQUELCH (SQ) will be activated by pushing the

control SQL which is located as depicted.

The threshold for squelch operation is adjusted by turning

the knob. Observing the S-Meter one can monitor the

threshold adjustment through the squelch marker

(triangle).

A triangle is moving in the S-meter according to the threshold setting of the

SQL control.

Once the SQL is activated and the threshold has engaged i.e. the RX is silent,

push and hold the SQL to override the threshold momentarily.

16 RX

AIN

ONTROL

(AGC

RF-GAIN)

Picture 68

Picture 69

C–52 Part C Installation And Operation

AGC menu

Picture 71

The AGC (Automatic Gain Control) is active after power on, its hang time is 2

seconds (default value). Manual control of the AGC system is initiated through

the AGC pushbutton located in the cluster FUNCTION.

AGC-LED is off during standard operation.

Pushing AGC will call AGC menu

• AGC-LED will be on.

• The AGC softkey menu will be called up:

Select AGC hang time 3 sec

Select AGC hang time 2 sec (default value)

Select AGC hang time 1 sec

Select AGC hang time 500 msec

Select AGC hang time 100 msec

The key toggles between RF-AGC / Audio-AGC (see below)

To prevent missing of weak signals during tuning the MAIN- or SUB-RX AGC

hang time will be always 100 msec.

The AGC-voltage is derived from the RF-signal after it has passed the

channel filters (10.7 MHz). The DSP will narrow the passband – hence out of

(DSP)- filter signals may still derive AGC voltage. This can be annoying

especially during CW operation. The solution is to switch to Audio-AGC.

AGC is derived from the audio to overcome situations described above.

Normal operation is RF-AGC.

Picture 70

RF-AGC

Audio-AGC

PT-8000

C User Manual C–53

The control knob RF is located as depicted. It allows to cut

off AGC action by pushing and to adjust an RF threshold

by turning.

AGC threshold

Turning the control RF will adjust the AGC threshold to a level which can be

monitored by observing the S-Meter. The AGC threshold can be raised to a

certain level where signals below are significantly less audible than signals

above the threshold where AGC action will level out the audio.

AGC OFF

Pushing the RF control will cut off any AGC action.

• 1. The display will show AGC-OFF

• 2. AGC-LED will be on

• 3. S-Meter will fall back to zero

In case a signal is present the audio volume may exceed the comfort level

Turning the RF control allows to adjust the RF gain according to the situation.

17 F

REQUENCY

CANNING

(SCAN)

Picture 72

C–54 Part C Installation And Operation

SCAN menu

Pushing the button SCAN located in cluster FUNCTION will activate scanning

of channels which are earmarked for scanning (see page C33). The receiver

will scan any frequency between 9 kHz and 29.999 MHz, and it will scan

frequencies from 50.0 to 54.0 MHz and 144.0 to 148.0 MHz.

These frequencies will be checked for a signal.

The RX will scan the channels from lower to higher frequencies with the

stored MODE and bandwidth.

• If the squelch is engaged scanning will Stopp

when a signal on a scanned channel opens the

squelch

• If the squelch is open, the RX will pause on the

scanned frequency for a time defined. After this

time has elapsed the scanning will continue.

• If the squelch engages during the pause

scanning will continue immediately

Pushing SCAN will:

• SCAN-LED will be on

• The frequency of the standby VFO will

disappear. Instead information about the

scanned channel is displayed as in channel

modus (see page C33)

• SCAN softkey menu will be called up

Delay time is 5 seconds

Delay time is 10 seconds

Delay time is 15 seconds

Delay time is 20 seconds

Delay time is 25 seconds

Delay time is infinite

Scanning will be terminated upon activating PTT, VFO tuning, STEP-VFO or

pushing SCAN. The frequency of the stanby VFO will reappear.

5 s

10 s

15 s

20 s

25 s

∞

Picture 74

Pi t 74

PT-8000

C User Manual C–55

MENU menu

Picture 76

18 C

ALIBRATION

OICE

ECORDER

The button MENU located in the cluster DISPLAY provides access to various

settings and calibration routines of the PT-8000, to the spectrum display

(band scope and channel scope) and the voice recorder.

Pushing the button MENU

• MENU-LED will be on

• MENU Softkey menu will be called up

Display software version RX CPU and access to update software

Internal reference and preselector

Brightness of display

Voice recorder (recording functions)

The key toggles between Audio Norm/Split (see below)

Various test functions may be activated TBD

Audio Normal will feed audio from MAIN and SUB to both speakers (PT-8000

and HN-8000). The volume of both RX is controlled by the appropriate knobs

MAIN and SUB.

Pushing MAIN or SUB in Audio Normal will turn off PT-8000 speaker (MAIN)

or HN-8000 speaker (SUB)

Audio Split will separate audio from MAIN and SUB hence MAIN is fed to

PT-8000 speaker and SUB to HN-8000 speaker.

Picture 75

Audio-Norm

Audio-Split

C–56 Part C Installation And Operation

CAL menu

Ref CAL menu

Pi t 78

18.1 Reference Calibration And Preselector Calibration

Pushing CAL softkey will call up Calibration menu:

Return to MENU menu

Call Ref CAL menu (internal reference)

Call Pre CAL menu (alibration routine for preselector)

18.1.1 Reference Calibration

Pushing Ref CAL softkey will call up Reference Calibration menu:

Return to CAL menu

Activate entry of correction value for reference oscillator through VFO

MAIN/REF-SET control. Values are –16106 to +16106

Store the correction value

Set correction value back to zero

Picture 77

PT-8000

C User Manual C–57

Pre CAL menu

Pi t 80

Toggle reference output ON / OFF

The display will change to a blue screen

(TBD)

18.1.2 Preselector Calibration

Pushing Pre CAL softkey will call up Preselector Calibration menu:

Return to the CAL menu

Start calibration routine

Call CAL L menu (adjust inductors of preselector manually)

TBD

Pi t 79 (TBD)

C–58 Part C Installation And Operation

CAL L menu

Pi t 82

Pushing CAL L softkey will call up a menu which allows to calibrate the

preselector manually by tuning the L component. Segments of the main

inductor may be added by activating A/B/C/D simultaneously:

The display will change

The alignment of the preselector can be done

manually. Both C and L may be tuned. This function is

preliminary – it will only work on the actual frequency

tuned – i.e. there is no storage of data yet.

To align use a signal received on the tuned frequency

or by means of a signal generator.

The capacitors of the preselector may be manually

tuned by rotating the STEP-VFO control. Tuning range

is between 1 and 255.

Tuning the Cs is possible without activating a software

menu – unlike tuning L (see below).

Return to the Pre CAL menu

Select part A of main inductor

Select part B of main inductor

Select part C of main inductor

Select part D of main inductor

TBD

Tuning of preselector is normally not necessary – the alignment has been

done in the factory. However if done one should bear in mind preselector

calibration will take around 30 minutes. No HF antenna should be attached to

the unit during calibration.

Pi t 81

PT-8000

C User Manual C–59

DIM menu

18.2 Brightness Display (DIM)

Pushing DIM softkey will call up DIM menu:

Return to the MENU menu

Pushing repeatedly will dim the display

Pushing repeatedly will increase background light of display

Pi t 83

C–60 Part C Installation And Operation

VOICE REC menu

18.3 Recording Functions (Voice Recorder)

Activation of voice recorder by pushing softkey VOICE REC:

The VOICE REC softkey menu will be called up:

Leave VOICE REC submenu and get to MENU

Select source for recording in a sequential order: MAIN-RX; SUB-RX; TX –

the respective sources will be displayed

Start and Stop of recording (toggle mode); Start and Stop will be displayed

accordingly

Play and Stop playing (toggle mode); Play and Stop will be displayed

accordingly

Clear recording memory; all records are deleted

Loop all recordings

• If the last recording is not deleted the actual

recording will be added

• In case the memory has reached its capacity the

recording will be ceased. Rec Start will be

displayed. However a new record in not possible

until the memory has been cleared.

The memory has a capacity to record 120 seconds

• Playback will always start at the very beginning

of the records

If the records are to be transmitted simply key the TX

• When playback is finished (end of record or

Stop) Play softkey is displayed.

Pi t 84

Recording

Playback

PT-8000

C User Manual C–61

METER menu

• The loop function may be activated during

playback; the record will be repeated endless

until Stop is activated

ETERING

PT-8000

(METER)

The button METER located in the cluster DISPLAY allows to change the

units displayed for the S.Meter (active RX):

Hams radio units S + dB, dBm or dBµV.

The meaning of the smaller right hand scale may also be altered from ALC

and Compression level.

Pushing METER will:

• METER-LED will be on

• The METER softkey-menu will be called up

ALC (Automatic Level Control) from TX will be displayed

Compression level from TX will be displayed

S-Meter indicates ham

radio standard: S + dB

S-Meter indicates: dBm

S-Meter indicates: dBµV

Picture 85

Pi t 86

Pi t 87

Pi t 88

C–62 Part C Installation And Operation

RX menu HF

Picture 90

ASIC

ETTINGS

RX/TX

Pushing the button RX/TX located in the cluster MODE will call up two types

of menus which gives access to various basic settings for RX and TX.

If the last used menus (TX or RX) will be called up.

Depending on whether HF or VHF is selected the menus and display

described below may vary.

RX menu HF

Select antenna #1 or – second press – antenna #1 for TX and an additional

RX antenna. Softkey will be shown invers. The Display will show ANT 1 or

ANT 1 RX if appropriate.

Select antenna #2 – softkey will be shown invers. The Display will show ANT

2 if appropriate.

Preamplifier may be switches ON, ON + 7kHz HPF and ON + 14kHz HPF.

Softkey will be shown invers. The Display will show blank, AMP, AMP 7+ or

AMP 14+

Preselector may be switches ON or OFF. Softkey will be shown invers. The

Display will show Preselect in the status field if appropriate.

This softkey will give access to a sub menu to select different roofing filters

and to activate the attenuator

Access to TX menu

When working VHF preselector is not available (see below).

Picture 89

PT-8000

C User Manual C–63

ATT / RoF menu HF

RX menu VHF

Pushing ATT / RoF softkey will call up ATT/RoF menu HF

Pushing ESC will return to the RX menu

Activate 6dB Attenuator

Select Roofing Filter 12.0 kHz

Select Roofing Filter 6.0 kHz

Select Roofing Filter 2.7 kHz

Switch back to normal i.e. automatic selection of roofing filters

If the Noise Blanker is activated the 12 kHz roofing filter will always be

selected

If MODE is changed the selection will be normal, i.e. automatic. Same is true

for power ON condition.

RX menu VHF

This softkey will give access to a sub menu to select different roofing filters

When activating this function 12 Volt DC are fed to the coaxial cable in order

to run remote switches or remotely operated amplifiers through this supply

voltage. The current is rated to 1 Amps.

Pi t 91

C–64 Part C Installation And Operation

RoF menu VHF

TX menu

Access to TX menu

Pushing RoF softkey will call up RoF menu VHF

Pushing ESC will return to the RX menu

Select Roofing Filter 12.0 kHz

Select Roofing Filter 6.0 kHz

Select Roofing Filter 2.7 kHz

Switch back to normal i.e. automatic selection of roofing filters

The TX softkey menu offers the following functions:

Access to 3 band EQUALIZER menu for TX to enhance audio as desired.

Toggle Leveler ON/OFF

Access to KEYER menu

Access to TX-Filter / TX-Shift menu

Toggle built-in automatic (iambic) CW-keyer ON/OFF

Pi t 93

PT-8000

C User Manual C–65

EQUALIZER menu

KEYER menu

Access to TX Out menu

Access to RX menu

Pushing EQU softkey will call up the EQUALIZER menu:

Back to TX menu

Increase gain of selected EQU-band in 1dB Steps. Maximum gain is +9dB

Select EQU-band in a cyclic manner. EQU-band is depicted on the display

Decrease gain of selected EQU-band in 1dB Steps. Maximum gain is -9dB

Reset all previous settings to 0 dB for all 3 EQU-bands

Toggle Equalizer ON / OFF

The EQU-bands are defined:

0 ... 200 Hz / 200 ... 1500 Hz / 1500 ... 3000Hz

Pushing Keyer softkey will call up the KEYER menu:

Back to TX menu

Selects “iambic” mode of the internal keyer

Selects “normal” mode of internal keyer

Reverses paddle function to accommodate left-/right hand operation

Pi t 94

Picture 95

C–66 Part C Installation And Operation

TX-Filter / TX-Shift menu

Picture 97

TX-OUT menu

Shuts off internal keyer to allow use of external keying device

Pushing TX-Fi / TX-Sh softkey will call up the TX-Filter / TX-Shift menu:

Return to TX menu

Press and hold while turning STEP-VFO control to select filter bandwidths

between 2.5 kHz and 3.4 kHz

Press and hold while turning STEP-VFO control to adjust TX filter shift (TX-

passband) from 0 Hz to +300 Hz in 25 Hz increments

Select 2.7 kHz 70.7 MHz bandwidth

Select 6.0 kHz 70.7 MHz bandwidth

Select 12 kHz 70.7 MHz bandwidth

Pushing TX-OUT softkey will call up TX OUT menu

Return to TX menu

TX-signal will be routed to internal power amplifier

TX-signal will be routed to J14 (BNC; +20dBm) at rear panel to drive external

equipment. Internal power amplifier will be shut down.

PT-8000

C User Manual C–67

21 T

RANSMITTER

ONTROLS

Various controls for transmitter settings are located on the front panel as depicted.

21.1 ZERO-BEAT

Pushing ZERO-BEAT control will activate a 440 Hz tone

in RX and TX mode.

In TX mode a 440 Hz tone will be transmitted.

In RX the tone can be heard in both RX. The volume might be adjusted by

turning the knob.

Given both transmitting and receiving stations can activate a 440 Hz tone an

interference might be heard in case both station vary in RX and/or TX

frequencies.

21.2 MIC

Turning MIC will adjust microphone sensitivity. Adjust

not to exceed ALC limits shown on the ALC-meter.

Pushing MIC will turn ON and OFF VOX

21.3 PROC

Pushing PROC will turn ON and OFF microphone

processor. Turning the knob will increase the processor

level. Adjust not to exceed COMP limits shown on the

COMP-meter.

If PROC is active COMP ON will be displayed

PROC is only available in USB/LSB

Picture 99

Picture 100

Picture 101

C–68 Part C Installation And Operation

21.4 TX-PWR

Pushing the TX-PWR control will toggle the transmitter

between low- and high power (10/25 Watts on HF/VHF

and 100/600Watts on HF for Model A/B). Turning the

knob allows continuous variation of power output in

these two ranges.

21.5 VOX

If VOX has been turned on this control adjusts the

trigger level for VOX activation. Adjust sensitivity to your

convenience and speech habits.

21.6 ANTI-TRIP

Signals from the speaker(s) might trigger or trip the VOX

unintentionally. ANTI-TRIP will countereffect this. Adjust

to get both reliable action and anti-trip of VOX circuit.

21.7 DELAY (of VOX)

DELAY of VOX circuit allows to adjust the hold time of

VOX activation hence to get smooth VOX operation and

to counteract any VOX switching between fluently

spoken voice.

21.8 Monitoring Function (MONITOR)

Turning the MONITOR control will adjust the volume auf

the audio to monitor the transmission of PT-8000.

Picture 102

Picture 103

Picture 104

Picture 105

Picture 106

PT-8000

C User Manual C–69

21.9 TX-DELAY (CW)

Turning TX-Delay clockwise will increase the time for

transmit/receive switching (turn-around time) during CW

mode. Setting TX-Delay fully counter clockwise ensures

the shortest T/R turn-around possible – called BK (break

in).

21.10 KEY SPEED

Turning KEY SPEED controls the speed of the internal

iambic keyer between 5 and XX WPM.

The CW weight remains constant.

22 O

PERATING

UXILIARY

QUIPMENT

TBD

Picture 107

Picture 108

C–70 Part C Installation And Operation

Part D Annex

OFTWARE

PDATE

TBD

PT-8000

C User Manual C–71

–– This page is intentionally blank ––

C–72 Part C Installation And Operation

Hilberling RF Laboratories PT8000 HF/VHF Receiver User Manual 051208

Hilberling GmbH RF Laboratories HF/VHF Receiver 051208

Users Manual Revised

Navigation menu

Namespaces

Views

Navigation