background image

4  TECHNICAL SPECIFICATIONS

TECHNOLOGY

Active Hybrid with send and return gain, auto-adjusted by audio 

limiter and AGC. Balanced telephone lines floating with ground 

isolation by Nickel-Ferrite transformers.

VQR System 

to improve the audio quality of telephone lines (HL203-

VQ).

AGC OUTPUT LEVEL 

Constant level to console, independent from line level due to the 

action of the internal AGC. A 15 dB phone level change causes less 

than 3 dB change at the Output
Output level control on the front panel. Nominal level +4 dBu, variable

between -60/+8 dBu

Priority: 

The speaker at the Studios have priority over the caller, 

causing an attenuation fo 12 dB on the incoming call. 

TELEPHONIC INPUTS

HL202: 

2 lines in conference with croosed gain. The 2 inputs for land 

lines or wired cell phone, are isolated and floating with transformer. 

HL203-VQ:

 

Adds a third line through a cell linked by Bluetooth to 

avoid physical connections and allow up to 10 meters away. The cell 

phone can be operated from HL203, receiving calls. 

AUDIO SEND FILTERS

Band-Pass filters in send channel, limits response to 400 – 2.200 Hz 

to eliminate on-air sound coloration.

INPUT LEVEL 

Audio limiter to operate with signals from -5 to + 8 dBu.

OUTPUT TO CONSOLE

N 4 dBm balanced 600 ohms or hi Z

Adjustable level with needle Vumeter.

 

Symetric output with XLR-3 connector.

SEND TO PHONE LINE

0 dBm +/- 1 dB, measured over 2 KM artificial phone line 

FEQUENCY RESPONCE

250 - 3.400 Hz +/- 1 dB  (VQR off)

VQR on (HL203)

: improve the spectrum between 50 – 12.000 Hz

GAIN

Adjustable until 30 dB

HARMONIC DISTORTION

Lower than 0,2 % at the console output at 1 kHz

NIVEL DE RUIDO

S/R better than 75 dBA, measured over 2 KM artificial phone line, 

with 

VQR. Better than 60 dBA without VQR

HYBRID REJECTION

Better than 40 dB @ send of +4dBu at 1 Khz.  Measured over 2 KM 

artificial phone line.

SOLIDYNE

Telephonic Hybrids

Page 31

Summary of Contents for HL 202

Page 1: ...Rev August 2021 TELEPHONE HYBRIDS HL202 2 4 6 lines HL203 VQ 3 lines expansible up to 7 lines User s manual info solidynepro com www SolidynePRO com HL 203 VQ HL 202...

Page 2: ...Page 2 Telephonic Hybrids SOLIDYNE...

Page 3: ...Bluetooth wireless link only models HL203 VQ 12 2 3 2 1 Linking the cell phone with the hybrid 12 2 3 2 2 Re connections 13 2 3 2 3 Adjusting the volume 14 2 4 AUDIO CONNECTIONS 14 2 4 1 Connecting t...

Page 4: ...Q 24 3 2 1 Receive a calling 24 3 2 2 Calling on the air and calling in hold 26 3 2 3 End a call 26 3 2 4 Power off Bluetooth 27 3 3 VOICE QUALITY RESTORATION VQR 27 3 6 1 Using the VQR 27 Low band 28...

Page 5: ...to link units 2 RJ 11 telephonic wires 4 self adhesive rubber pads 1 Warranty certificate 1 user manual Please check that all components are okay when you receive the packaging About the montage Soli...

Page 6: ...ntenance to qualified personnel El cable provisto con el equipo posee conexi n a tierra No lo reemplace ni use adaptadores ASEG RESE DE CONTAR CON UNA TOMA A TIERRA CONFIABLE The exclamation icon with...

Page 7: ...lost in the telephone transmission The user can adjust the signal level restored from two independent knobs for bass and treble In addition VQR has a noise gate allows to obtain values of 70dBA SNR i...

Page 8: ...em The operation is very simple and error free despite its security s logical and automated control circuits A Recording Output allows recording the conferences directly from the hybrid This output is...

Page 9: ...sition OFF The lines can be connected directly to the public phone lines or the PBX of radio station The private lines deteriorate hybrid rejection therefore we recommend connecting the console to pub...

Page 10: ...others lines 2 3 USING WITH CELL PHONES 2 3 1 Wired cell phones in HL202 HL203 VQ Both RJ 11 inputs supports cell phones The cellular connects to the hybrid using the free hands connection that the c...

Page 11: ...y from the hybrid The Bluetooth wireless link provides better audio quality since the signal remains digital from the cell phone to the HL203 VQ 2 3 2 1 Linking the cell phone with the hybrid By linki...

Page 12: ...lt See your phone s manual for details 4 HL203 s ID is now stored at the cell phone s memory You don t need to repeat this procedure for this phone In the front panel of the hybrid the light will chan...

Page 13: ...set the Bluetooth level again To turn off HL203 s Bluetooth press and hold the Bluetooth button until LED turn off 2 4 AUDIO CONNECTIONS 2 4 1 Connecting to a console using send return for external H...

Page 14: ...g mono 1 4 Balanced output female XLR Tip tip Ring pin 2 Sleeve GND sleeve pin 1 pin 3 n c I O connection to an external hybrid in Solidyne 2300 consoles Stereo plug brings two cables Y cable shield a...

Page 15: ...connected to a balanced line input on the console to send calls to air PGM To connect this output to an unbalanced input leave pin 3 unconnected connect only 1 GND 2 signal Send to phone line is the a...

Page 16: ...Page 16 Telephonic Hybrids SOLIDYNE...

Page 17: ...ition to the audio of the lines in Hold is normal to hear an audio remnant of on air lines When HL202 units are connected in cascade CUE outputs remains independent Each unit presents its CUE audio ou...

Page 18: ...nes or between all lines land lines and cell phones CUE outputs are independent in each hybrid Each CUE output gives audio of the lines plugged to this unit All units can be connected to the AC outlet...

Page 19: ...SOLIDYNE Telephonic Hybrids Page 19...

Page 20: ...as the background music will cause the attenuation of the audio incoming from telephone line In conventional interviews and dialogues the action of priority system is natural and is not detected by th...

Page 21: ...al In order to air the call press AIR and open the corresponding channel on the console The function OFF disconnect the telephone line from hybrid and connecting to the phone set When the operator doe...

Page 22: ...the audio signal that goes to air So in Solidyne hybrids we use a processed return channel to avoid distortion at the on air signal There are hybrids manufacturers that maintain the return control le...

Page 23: ...Bluetooth stage start up by pressing and holding down BLUET until the LED glows green 2 sec approx After releasing the button the green led flashes slowly The cell phone must be switched on and less...

Page 24: ...n to maintain signal retained with air return But when there is a call on the air and a second calling enters to the Bluetooth cell phone the talk back circuit of 2300 console can not be used because...

Page 25: ...if you wants to talk in private with the caller you needs to return the call to the cell phone In our example this is done taking the call with the phone then accessing the Options menu and selecting...

Page 26: ...um lost due the transmission As you know the bandwidth transmitted through a telephone line reduces approximately to 300 Hz 3 000 Hz because this is the range of the human voice Therefore the componen...

Page 27: ...the fader closed there is no reconstruction for low frequencies The level of reconstruction or amount of low frequencies that is possible to add to the signal depends on the audio quality of the tele...

Page 28: ...h background noise REMEMBER The optimal level of work is obtained when the indicator VU meter reaches the red zone Lower audio levels can affect the behavior of the VQR processing NOISE Control expand...

Page 29: ...ise from a street for example it agrees not to use the NOISE CONTROL to avoid that during the pauses it activates and deactivates generating an intermittent background sound In these cases it is prefe...

Page 30: ...Page 30 Telephonic Hybrids SOLIDYNE...

Page 31: ...03 VQ Adds a third line through a cell linked by Bluetooth to avoid physical connections and allow up to 10 meters away The cell phone can be operated from HL203 receiving calls AUDIO SEND FILTERS Ban...

Page 32: ...OV Siemens Resist discharge capacitor charged to 2 000 V in laboratory tests LINES ISOLATION Independents inputs balanced and floating with transformer Isolation 250 V CA ALIMENTACION 220 115 V 50 60...

Reviews: