carpy Posted September 27, 2005 Share Posted September 27, 2005 I spoke to Promax a week ago and they informed me that this new TV meter was in full production and that many units were already being sold. There was a backlog of about 1 month before they could deliver a new unit. I wondered if anyone has tried these yet? They look mighty fine from where I am standing. Comments? I am in the UK by the way, and the retail price here is £1500 + 17.5% VAT Link to comment Share on other sites More sharing options...
scorpio1503559530 Posted September 28, 2005 Share Posted September 28, 2005 I spoke to Promax a week ago and they informed me that this new TV meter was in full production and that many units were already being sold. There was a backlog of about 1 month before they could deliver a new unit.I wondered if anyone has tried these yet? They look mighty fine from where I am standing. Comments? I am in the UK by the way, and the retail price here is £1500 + 17.5% VAT <{POST_SNAPBACK}> Any web links? Link to comment Share on other sites More sharing options...
carpy Posted September 28, 2005 Author Share Posted September 28, 2005 Any web links? <{POST_SNAPBACK}> http://www.promax.es/ing/NOTICIAS/tvexplorer/index.htm Link to comment Share on other sites More sharing options...
scorpio1503559530 Posted September 29, 2005 Share Posted September 29, 2005 http://www.promax.es/ing/NOTICIAS/tvexplorer/index.htm <{POST_SNAPBACK}> That's Promax Prodig 5. Looking forward to see it in action very soon ... Link to comment Share on other sites More sharing options...
I am not a duck Posted October 1, 2005 Share Posted October 1, 2005 (edited) Where are the specs? Not on the pdf at the link above and couldn't navigate to find them on the site. Edited October 2, 2005 by marcj Link to comment Share on other sites More sharing options...
bellotv Posted October 2, 2005 Share Posted October 2, 2005 Saw one at a DJ Coulter trade show several months ago Check their web site Link to comment Share on other sites More sharing options...
cofdmstuff Posted October 4, 2005 Share Posted October 4, 2005 Where are the specs?Not on the pdf at the link above and couldn't navigate to find them on the site. <{POST_SNAPBACK}> http://www.promax.es/ing/NOTICIAS/tvexplorer/index.htm .....and then you can navigate through the page by clicking on the left links, just below the Overview. Link to comment Share on other sites More sharing options...
I am not a duck Posted October 4, 2005 Share Posted October 4, 2005 Technical specifications as distinct from glossy presentation? Haven't been able to find them, but not for lack of looking. Like to see more than pretty pictures and highlights of some of the instrument's operating parameters. (My spanish friend tells me noticias = the news. I want data from whence to derive my own interpretation of the facts.) Link to comment Share on other sites More sharing options...
jackdoggie Posted October 7, 2005 Share Posted October 7, 2005 Try this to see it in Australia http://www.rapserv.com.au/prod6170.htm Link to comment Share on other sites More sharing options...
jackdoggie Posted October 7, 2005 Share Posted October 7, 2005 Also here for flyers http://www.rapserv.com.au/files/Promax-PD-...cifications.jpg Link to comment Share on other sites More sharing options...
jackdoggie Posted October 7, 2005 Share Posted October 7, 2005 About $5k Link to comment Share on other sites More sharing options...
I am not a duck Posted October 8, 2005 Share Posted October 8, 2005 Those links still glossy pictures. emailed Promax direct and was able to get the information I was after. Link to comment Share on other sites More sharing options...
cofdmstuff Posted October 10, 2005 Share Posted October 10, 2005 Those links still glossy pictures.emailed Promax direct and was able to get the information I was after. <{POST_SNAPBACK}> .....and, can you publish them in the forum? Link to comment Share on other sites More sharing options...
I am not a duck Posted October 10, 2005 Share Posted October 10, 2005 Didn't think there was any interest as kept getting referred to the glossy brochures - I have a thing about that. Comments would be appreciated. UNIVERSAL TV EXPLORER PRODIG-5 1.1 Specifications CONFIGURATION FOR MEASURING LEVEL AND POWER TUNING Digital frequency synthesis. Continuous tuning from 45 to 865 MHz and from 950 to 2150 MHz Tuning modes Chanel or frequency (IF or downlink at satellite band). Channel plan configurable on demand Resolution 45-865 MHz: 50 kHz 950-2150 MHz: < 200 kHz (span FULL-500-200-100-50-32-16 MHz). Automatic search (Explorer) Threshold level selectable. DVB-T or DVB-C selection Signal identification Analogue and digital. Automatic. RF INPUT Impedance 75 W Connector Universal, with BNC or F adapter. Maximum signal 130 dBµV Maximum input voltage DC to 100 Hz 50 Vrms (powered by the AL-103 power charger) 30 Vrms (not powered by the AL-103 power charger) 45 MHz to 2150 MHz 130 dBµV DIGITAL SIGNALS MEASUREMENT POWER RANGE COFDM: 45 dBµV to 100 dBµV. QAM: 45 dBµV to 110 dBµV. QPSK: 44 dBµV to 114 dBµV. MEASUREMENTS DVB-T (COFDM): Power, CBER, VBER, MER, C/N Presentation: Numeric and level bar. DVB-C (QAM): Power, BER, MER, C/N Presentation: Numeric and level bar. DVB-S (QPSK): Power, CBER, VBER, MER, C/N Presentation: Numeric and level bar. COFDM SIGNAL PARAMETERS Carriers 2k / 8k (Selected by the user). Guard Interval 1/4, 1/8, 1/16, 1/32 (Selected by the user). Code Rate 1/2, 2/3, 3/4, 5/6, 7/8. Modulation QPSK, 16-QAM, 64-QAM. Spectral inversion Selectable: ON, OFF. Hierarchy Indicates hierarchy mode. QAM SIGNAL PARAMETERS Demodulation 16/32/64/128/256 QAM. Symbol rate 1000 to 7000 kbauds. Roll-off (a) factor of Nyquist filter 0.15. Spectral inversion Selectable: ON, OFF QPSK SIGNAL PARAMETERS Symbol rate 2 to 45 Mbauds. Roll-off (a) factor of Nyquist filter 0.35. Code Rate 1/2, 2/3, 3/4, 5/6, 7/8 and AUTO. Spectral inversion Selectable: ON, OFF VIDEO Format MPEG-2 / DVB (MP@ML). Services decoding Service list and PIDs ANALOGUE SIGNALS MEASUREMENT LEVEL MEASUREMENT Measurement range Terrestrial TV & FM bands 10 dBµV to 120 dBµV (3.16 µV to 1 V) Satellite TV band 30 dBµV to 120 dBµV (31.6 µV to 1 V) Reading Auto-range, reading is displayed on an OSD window Digital Absolute value calibrated in dBµV, dBmV or dBm. Analogue Relative value through an analogue bar on the screen. Measurement bandwidth 230 kHz (Terrestrial band) + 4 MHz (Satellite band) (maximum band ripple 1 dB). Audible indicator LV audio. A tone with pitch proportional to signal strength. Accuracy Terrestrial bands ±1.5 dB (30-120 dBµV, 45-865 MHz) (22 °C±5 °C) Satellite band ±2.5 dB (40-100 dBµV, 950-2050 MHz) (22 °C ± 5 °C) Overrange indication , ¯ MEASUREMENTS MODE Terrestrial bands Analogue channels Level, Video-Audio ratio and Carrier-Noise ratio. Digital channels Channel power, Carrier-Noise ratio and Channel identification. Satellite band Analogue channels Level and Carrier-Noise ratio. Digital channels Channel power and Carrier-Noise ratio. SPECTRUM ANALYSER MODE Satellite band 30 dBµV to 120 dBµV (31.6 µV to 1 V) Terrestrial bands 10 dBµV to 120 dBµV (3.16 µV to 1 V) Measurement bandwidth Terrestrial 230 kHz Satellite 4 MHz Span Terrestrial Full span (full band) - 500 - 200 - 100 - 50 - 32 - 16 - 8 MHz selectable. Satellite Full span (full band) - 500 - 200 - 100 - 50 - 32 - 16 MHz selectable. Markers 1 with Frequency and level indications. Measurements Terrestrial bands Analogue channels Level. Digital channels Channel power. Satellite band Analogue channels Level. Digital channels Channel power. MONITOR DISPLAY Monitor TFT colour 5 inches. Colour system PAL, SECAM and NTSC TV standard M, N, B, G, I, D, K and L Spectrum mode Variable span, dynamic range and reference level by means of arrow cursors. Sensibility 40 dBµV for correct synchronism. BASE BAND SIGNAL VIDEO External video input Scart. Sensibility 1 Vpp (75 W) positive video Video output Scart (75 W) SOUND Input Scart Outputs Built in speaker, Scart. Demodulation TV PAL, SECAM, NTSC system according to DVB-T, DVB-C, DVB-S and MPEG standards. De-emphasis 50 µs Subcarrier Digital frequency synthesis according to the TV standard. RS-232C INTERFACE For service and calibration. EXTERNAL UNITS POWER SUPPLY Through the RF input connector. Terrestrial and Satellite External or 5/13/15/18/24 V 22 kHz signal Selectable in satellite band. Voltage 0.6 V ± 0.2 V Frequency 22 kHz ± 4 kHz Maximum power 5 W DiSEqC GENERATOR According to DiSEqC 1.2 standard. POWER SUPPLY Internal Batteries 7.2 V 11 Ah Li-Ion battery. Autonomy > 3.5 hours in continuous mode. Recharging time 3 hours up to 80% (instrument off) External Voltage 12 V Consumption 35 W Auto power off Programmable. After the selected amount of minutes without operating on any control. Deactivable. OPERATING ENVIRONMENTAL CONDITIONS Altitude Up to 2000 m Temperature range From 5 to 40 °C (Automatic disconnection by excess of temperature). Max. relative humidity 80 % (up to 31°C), decreasing lineally up to 50% at 40 °C. MECHANICAL FEATURES Dimensions 230 (W) x 161 (H) x 76 (D) mm (Total size: 2.814 cm3) Weight 1.9 kg (without holster) INCLUDED ACCESSORIES 1x CB-044 Rechargeable Li+ battery 7,2 V 11 Ah 1x AD-055 "F"/F-BNC/F adapter 1x AD-056 "F"/F-"DIN"/F adapter 1x AD-057 "F"/F-"F"/F adapter 1x AL-103 External DC charger 1x DC-261 Carrying bag. 1x AA-103 Car lighter charger. 1x CA-005 Mains cord. OPTIONAL ACCESSORIES DC-299 Transport suitcase. 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cofdmstuff Posted October 11, 2005 Share Posted October 11, 2005 Didn't think there was any interest as kept getting referred to the glossy brochures - I have a thing about that. Comments would be appreciated. UNIVERSAL TV EXPLORER PRODIG-5 1.1 Specifications CONFIGURATION FOR MEASURING LEVEL AND POWER TUNING Digital frequency synthesis. Continuous tuning from 45 to 865 MHz and from 950 to 2150 MHz Tuning modes Chanel or frequency (IF or downlink at satellite band). Channel plan configurable on demand Resolution 45-865 MHz: 50 kHz 950-2150 MHz: < 200 kHz (span FULL-500-200-100-50-32-16 MHz). Automatic search (Explorer) Threshold level selectable. DVB-T or DVB-C selection Signal identification Analogue and digital. Automatic. RF INPUT Impedance 75 W Connector Universal, with BNC or F adapter. Maximum signal 130 dBµV Maximum input voltage DC to 100 Hz 50 Vrms (powered by the AL-103 power charger) 30 Vrms (not powered by the AL-103 power charger) 45 MHz to 2150 MHz 130 dBµV DIGITAL SIGNALS MEASUREMENT POWER RANGE COFDM: 45 dBµV to 100 dBµV. QAM: 45 dBµV to 110 dBµV. QPSK: 44 dBµV to 114 dBµV. MEASUREMENTS DVB-T (COFDM): Power, CBER, VBER, MER, C/N Presentation: Numeric and level bar. DVB-C (QAM): Power, BER, MER, C/N Presentation: Numeric and level bar. DVB-S (QPSK): Power, CBER, VBER, MER, C/N Presentation: Numeric and level bar. COFDM SIGNAL PARAMETERS Carriers 2k / 8k (Selected by the user). Guard Interval 1/4, 1/8, 1/16, 1/32 (Selected by the user). Code Rate 1/2, 2/3, 3/4, 5/6, 7/8. Modulation QPSK, 16-QAM, 64-QAM. Spectral inversion Selectable: ON, OFF. Hierarchy Indicates hierarchy mode. QAM SIGNAL PARAMETERS Demodulation 16/32/64/128/256 QAM. Symbol rate 1000 to 7000 kbauds. Roll-off (a) factor of Nyquist filter 0.15. Spectral inversion Selectable: ON, OFF QPSK SIGNAL PARAMETERS Symbol rate 2 to 45 Mbauds. Roll-off (a) factor of Nyquist filter 0.35. Code Rate 1/2, 2/3, 3/4, 5/6, 7/8 and AUTO. Spectral inversion Selectable: ON, OFF VIDEO Format MPEG-2 / DVB (MP@ML). Services decoding Service list and PIDs ANALOGUE SIGNALS MEASUREMENT LEVEL MEASUREMENT Measurement range Terrestrial TV & FM bands 10 dBµV to 120 dBµV (3.16 µV to 1 V) Satellite TV band 30 dBµV to 120 dBµV (31.6 µV to 1 V) Reading Auto-range, reading is displayed on an OSD window Digital Absolute value calibrated in dBµV, dBmV or dBm. Analogue Relative value through an analogue bar on the screen. Measurement bandwidth 230 kHz (Terrestrial band) + 4 MHz (Satellite band) (maximum band ripple 1 dB). Audible indicator LV audio. A tone with pitch proportional to signal strength. Accuracy Terrestrial bands ±1.5 dB (30-120 dBµV, 45-865 MHz) (22 °C±5 °C) Satellite band ±2.5 dB (40-100 dBµV, 950-2050 MHz) (22 °C ± 5 °C) Overrange indication , ¯ MEASUREMENTS MODE Terrestrial bands Analogue channels Level, Video-Audio ratio and Carrier-Noise ratio. Digital channels Channel power, Carrier-Noise ratio and Channel identification. Satellite band Analogue channels Level and Carrier-Noise ratio. Digital channels Channel power and Carrier-Noise ratio. SPECTRUM ANALYSER MODE Satellite band 30 dBµV to 120 dBµV (31.6 µV to 1 V) Terrestrial bands 10 dBµV to 120 dBµV (3.16 µV to 1 V) Measurement bandwidth Terrestrial 230 kHz Satellite 4 MHz Span Terrestrial Full span (full band) - 500 - 200 - 100 - 50 - 32 - 16 - 8 MHz selectable. Satellite Full span (full band) - 500 - 200 - 100 - 50 - 32 - 16 MHz selectable. Markers 1 with Frequency and level indications. Measurements Terrestrial bands Analogue channels Level. Digital channels Channel power. Satellite band Analogue channels Level. Digital channels Channel power. MONITOR DISPLAY Monitor TFT colour 5 inches. Colour system PAL, SECAM and NTSC TV standard M, N, B, G, I, D, K and L Spectrum mode Variable span, dynamic range and reference level by means of arrow cursors. Sensibility 40 dBµV for correct synchronism. BASE BAND SIGNAL VIDEO External video input Scart. Sensibility 1 Vpp (75 W) positive video Video output Scart (75 W) SOUND Input Scart Outputs Built in speaker, Scart. Demodulation TV PAL, SECAM, NTSC system according to DVB-T, DVB-C, DVB-S and MPEG standards. De-emphasis 50 µs Subcarrier Digital frequency synthesis according to the TV standard. RS-232C INTERFACE For service and calibration. EXTERNAL UNITS POWER SUPPLY Through the RF input connector. Terrestrial and Satellite External or 5/13/15/18/24 V 22 kHz signal Selectable in satellite band. Voltage 0.6 V ± 0.2 V Frequency 22 kHz ± 4 kHz Maximum power 5 W DiSEqC GENERATOR According to DiSEqC 1.2 standard. POWER SUPPLY Internal Batteries 7.2 V 11 Ah Li-Ion battery. Autonomy > 3.5 hours in continuous mode. Recharging time 3 hours up to 80% (instrument off) External Voltage 12 V Consumption 35 W Auto power off Programmable. After the selected amount of minutes without operating on any control. Deactivable. OPERATING ENVIRONMENTAL CONDITIONS Altitude Up to 2000 m Temperature range From 5 to 40 °C (Automatic disconnection by excess of temperature). Max. relative humidity 80 % (up to 31°C), decreasing lineally up to 50% at 40 °C. MECHANICAL FEATURES Dimensions 230 (W) x 161 (H) x 76 (D) mm (Total size: 2.814 cm3) Weight 1.9 kg (without holster) INCLUDED ACCESSORIES 1x CB-044 Rechargeable Li+ battery 7,2 V 11 Ah 1x AD-055 "F"/F-BNC/F adapter 1x AD-056 "F"/F-"DIN"/F adapter 1x AD-057 "F"/F-"F"/F adapter 1x AL-103 External DC charger 1x DC-261 Carrying bag. 1x AA-103 Car lighter charger. 1x CA-005 Mains cord. OPTIONAL ACCESSORIES DC-299 Transport suitcase. <{POST_SNAPBACK}> Thanks a lot, if you can and have it, can you give me a contact person (name and email) at Promax. As far as specs go, it seems to me as an excellent meter, it's got the accuracy (on paper), its got the spectrum, BER/MER, MPEG-2 and it weights 1.9 Kg. I'm really looking forward to see it working, if it is half as good as they say, I'm seeing bad selling times for the Unaohms as, personally, I prefer one meter for all than one meter for each modulation, specially with this weight. Cheers Link to comment Share on other sites More sharing options...
cofdmstuff Posted October 11, 2005 Share Posted October 11, 2005 Thanks a lot, if you can and have it, can you give me a contact person (name and email) at Promax.As far as specs go, it seems to me as an excellent meter, it's got the accuracy (on paper), its got the spectrum, BER/MER, MPEG-2 and it weights 1.9 Kg. I'm really looking forward to see it working, if it is half as good as they say, I'm seeing bad selling times for the Unaohms as, personally, I prefer one meter for all than one meter for each modulation, specially with this weight. Cheers <{POST_SNAPBACK}> Just got a price and demo from Electrocraft for 4.2K + GST, and what can I say, the meter really does the job. Link to comment Share on other sites More sharing options...
I am not a duck Posted October 11, 2005 Share Posted October 11, 2005 The person I contacted was: Jordi Castel, area manager Promax, email jcastell@promax.es From my reading, doesn't have data logging, constellation display, minimum power range for COFDM measurements at 45dBuV is a bit high for my liking. Apart from that, nice machine, since it is almost one size fits all, but as I already have another instrument or three, my interest academic only. I also wonder what latency for the various functions is. Link to comment Share on other sites More sharing options...
bellotv Posted October 12, 2005 Share Posted October 12, 2005 The person I contacted was:Jordi Castel, area manager Promax, email jcastell@promax.es From my reading, doesn't have data logging, constellation display, minimum power range for COFDM measurements at 45dBuV is a bit high for my liking. Apart from that, nice machine, since it is almost one size fits all, but as I already have another instrument or three, my interest academic only. I also wonder what latency for the various functions is. <{POST_SNAPBACK}> I agree about cofdm measurements being a bit high Perhaps the Unaohms with their higher sensitivity and low latency may still be in the race after all Link to comment Share on other sites More sharing options...
I am not a duck Posted October 13, 2005 Share Posted October 13, 2005 Welll, don't know if apples are apples here, On page 7 of Unaohm T 40 manual, spec for 8Mhz bandwidth is -40dBuV LNB off to -45dBuV LNB on (I presume LNB is a typo, and I'm waiting for Laceys to get back to me on that one), and Roversat PDA-7 implies minimum useful 30dBuV, but will go to 25dBuV. Latency is worse on the PDA-7, but in my experience it out-performs the T-40 in the sensitivity stakes. Link to comment Share on other sites More sharing options...
cofdmstuff Posted October 13, 2005 Share Posted October 13, 2005 Welll, don't know if apples are apples here,On page 7 of Unaohm T 40 manual, spec for 8Mhz bandwidth is -40dBuV LNB off to -45dBuV LNB on (I presume LNB is a typo, and I'm waiting for Laceys to get back to me on that one), and Roversat PDA-7 implies minimum useful 30dBuV, but will go to 25dBuV. Latency is worse on the PDA-7, but in my experience it out-performs the T-40 in the sensitivity stakes. <{POST_SNAPBACK}> Excuse the long text, I took th liberty of sending the following mail to Castell from promax and got his reply below: Dear Mr. Castell, I have just ordered a PRODIG-5 and looking at the specs of it, I found that the minimum channel power for decoding COFDM is 45 dBuV. Is that the case? What would be the result if the meter is put to measure COFDM levels below that? What is the latency of the COFDM measurements? How is this meter as compared to the Unaohms and Rover's? I currently own a PROLINK-2 and a PROLINK4C Premium, how would it compare to both? Cheers Dear John, Thanks a lot for purchasing a PG5. Lots of questions. Some of them I may be able to answer exactly, but a comparative analysis between our meter and the competition is hard for me to do as, first of all, it is very difficult for me to be objective and second, although I know the different models of Unaohm and Rover, I am not an expert on them, what I can do is to explain what we do and then you compare it to the others: - The minimum level at which the COFDM tuner will lock is not 45 dBuV, in fact, this is just a minimum value recommended for a digital reception. The meter will lock and display MER and BER values for power levels from 35 dBuV onwards although you must take into consideration that the MER's will also depend upon the type of modulation used (64 QAM, QPSK, etc). The MER has a top measured value of 32.9 dB's although this value you will hardly get in a real live installation. - The latency (I assume you mean the time it takes for the meter to lock and display the info) is almost immediate. I cannot give you a figure because it has too many variables (quality, levels, SR's, echoes, etc), but all you can do is compare it to the PROLINK's that you have and you'll see that the response is much faster. For instance, the explorer function has the ability to find out all the parameters of the digital signal under test, if you go to a QPSK or COFDM signal and tell the meter that the signal under test is ANALOGUE (thus you are lying to the meter), and them press the EXPLORER KEY, it will not take more than 1.5 seconds to get back to you with a MER and BER value, it is then to be understood that the meter will be real fast to refresh the proper values once the right parameters have been found. Just try it when you have a chance. - As for a comparison between our meter and the competitors, I can only say that, apart from the mechanical advantage, the pg5 has a real spectrum display with arrow keys to change SPAN's and REFERENCE LEVELS, you can never go wrong with the digital parameters, it has Lithium Ion batteries as standard, MPEG-2 and all three modulations on one instrument. Just look at what instrument from the competitors has that (and what price they quote). The PROLINK-4 Premium has to be seen as a more professional meter (constellations, loggers, measuring filters, DAB, etc) but the sure option for a day to day installer will definitely be the PRODIG-5. Please let me know if you have any more questions, I'll be glad to help you out. Best regards At 18:10 13/10/05 +1000, you wrote: Dear Mr. Castell, I have just ordered a PRODIG-5 and looking at the specs of it, I found that the minimum channel power for decoding COFDM is 45 dBuV. Is that the case? What would be the result if the meter is put to measure COFDM levels below that? What is the latency of the COFDM measurements? How is this meter as compared to the Unaohms and Rover's? I currently own a PROLINK-2 and a PROLINK4C Premium, how would it compare to both? Cheers Jordi Castell Area Manager PROMAX ELECTRONICA S.A. Francesc Moragas 71 08907 HOSPITALET SPAIN TEL: 34 93 260 2002 FAX: 34 93 338 1126 http://www.promax.es Link to comment Share on other sites More sharing options...
I am not a duck Posted November 23, 2005 Share Posted November 23, 2005 minimum power range for COFDM measurements at 45dBuV is a bit high for my liking. <{POST_SNAPBACK}> After making that gratuitous comment I checked the 3 instruments I have and the readings on all of them deteriorates once the level drops below 45dBuV. Some of the installations I do are in areas where the incoming signal is <45dBuV, my solution is to add a preamplifier to the antenna being used for testing to get more of an idea of what the final result at the wallplate will be. This is much easier if the instrument in use has a power feed as it is not necessary to carry a battery on your person. Link to comment Share on other sites More sharing options...
dig2all Posted November 24, 2005 Share Posted November 24, 2005 really surprised you guys keep talking about signal level when it is BER / MER that matters. Link to comment Share on other sites More sharing options...
bellotv Posted November 24, 2005 Share Posted November 24, 2005 Agree but if you can't get a stable reading becuase the meter keeps going below level where it will work then its frustrating and time consuming. I also use an inline masthead amp powered off my T40 when doing tests in terminally weak areas as the extra gain brings the BER /MER reading up to a stable point. With experience I know how far to the limit to push it for reliable recieption. Just because the channel power is below 40dBuV doesn't mean don't waste your time installing digital. As long as the MER comes up to at least 24 with an amp and the channel BER is not much less than 1E03 then you can be fairly confident of a happy customer However at these borderline cases I inform customer of potential for failure. Customers happy to have such wonderful pictures after many years of analog ghosty,bendy ,snowy,distorted crap Link to comment Share on other sites More sharing options...
cofdmstuff Posted November 24, 2005 Share Posted November 24, 2005 Agree but if you can't get a stable reading becuase the meter keeps going below level where it will work then its frustrating and time consuming.I also use an inline masthead amp powered off my T40 when doing tests in terminally weak areas as the extra gain brings the BER /MER reading up to a stable point. With experience I know how far to the limit to push it for reliable recieption. Just because the channel power is below 40dBuV doesn't mean don't waste your time installing digital. As long as the MER comes up to at least 24 with an amp and the channel BER is not much less than 1E03 then you can be fairly confident of a happy customer However at these borderline cases I inform customer of potential for failure. Customers happy to have such wonderful pictures after many years of analog ghosty,bendy ,snowy,distorted crap <{POST_SNAPBACK}> Totally agree with Bellotv. MER and BER are the important results, but all decoders (comercial decoders) have a threshold below which, they cannot give up a proper Transport Stream out to the MPEG-2 decoder and thus causes pixellation. If you power up the signal well above this threshold, you then have some room for a good MER reading under worst enviromental conditions, so Channel Power does matter under marginal conditions. As for Powering the MH Amplifiers, the PRODIG-5 also has the possibility to do so. Link to comment Share on other sites More sharing options...
dig2all Posted November 24, 2005 Share Posted November 24, 2005 does the new Promax show cofdm reflections? Link to comment Share on other sites More sharing options...
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