Question about Sennheiser Evolution 100 G2 (SEN-EW152G2) Professional Headset

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I HAVE A SENNHEISER RECIEVER WITH A 700 MHZ FREQUENCY AND PACKS THAT HAVE A 500 MHZ FREQUENCY. HOW CAN I PAIRS THESE DEVICES?

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Sennheiser HDR120 - missing transmitter / alternative OR replacement?


The system is working in the 860 Mhz range, so not that common. Most of the time it is cheaper to by a complete new system then to tray to buy components. Just keep looking in the thrift stores you find a transmitter for this headphone for a good price.

Jun 15, 2014 | Sennheiser HDR 130 Consumer Headphones

1 Answer

Sennheiser Wireless Headphone picks up unwanted transmissions


This headset uses a 900 MHz frequency for connection from the headset to the base.
You will always incur lots of interference in a busy office using that frequency band. Any antennas on the roof or close by?
Amateur radio users?
The other thing, you might have a faulty power supply or "dirty power" coming into the unit. You can try and isolate in a current regulating power bar and see if that helps.
Else, consider changing technologies and moving to, say a DECT band.
Avoid, 2.4 and 5 GHz bands as they are in the wireless devices range and likely will incur equal amounts of interference.

Jan 08, 2014 | Sennheiser RS 120 Consumer Headphones

1 Answer

Intel dh55tc how many RAM slots is there


Dear p_raveen8376, there are 4 RAM slots on Intel DH55TC board. But you have to use the slots systematically. You'll have to use those in pairs. Four slots are marked by separate colors (i.e. 2 in Blue & 2 in Ash Color) and demarketed as DIMM_0 & DIMM_1. First, you'll have to use pairs of DIMM_0 with same RAM (same frequency like 800 MHz or 1333 MHz or so on), preferably same make. Thereafter, if you like to upgrade, you can use rest pairs of slots with different RAM i.e. other frequency, or other make.

Feb 21, 2011 | Intel DH55TC Motherboard

1 Answer

HP Pavilion Media Center PC not detecting memory in slots 3 & 4.All memory works in slots 1 &2.Memory is all the same.


Info from the manual:

Memory configurations

You can install 128 MB, 256 MB, 512 MB, and 1GB DDR SDRAM DIMMs into the DIMM sockets using the memory configurations in this section.

• Install only identical (the same type and size) DDR DIMM pairs

using the recommended configurations.

• Make sure that the memory frequency matches the CPU FSB

(Front Side Bus). Refer to the Memory frequency/CPU FSB

synchronization table on the next page.

• This motherboard does not support double-sided 16-bit DDR DIMMs.

• Do not create a three-DIMM configuration in dual-channel mode. The
third DIMM is ignored in the dual-channel operation.

Recommended memory configurations

Memory frequency/CPU FSB synchronization

* Use only identical DDR DIMM pairs.

Sockets

Mode DIMM1 DIMM2 DIMM3 DIMM4

Single-channel (1) Installed - - -

(2) - Installed - -

(3) - - Installed -

(4) - - - Installed

Dual-channel* (1) Installed - Installed -

(2) - Installed - Installed

(3) Installed Installed Installed Installed


CPU FSB DDR DIMM Type Memory Frequency

800 MHz PC3200 400 MHz
533 MHz PC3200/PC2700 400/333 MHz

Feb 18, 2011 | ASUS PTGD-LA Motherboard

1 Answer

Scheme diagram to change an ew100 microphone and receiver from 700 Mhz to 500 Mhz.


Even if you can find a schematic, it's not going to help you. Changing a radio's operating frequency by almost 30% requires changing a fair number of parts. You'd have to know which ones and what the new values would need to be. Then the radios would need retuning and adjustment, which requires test equipment you aren't likely to have. Their operation would might also be unreliable as well, and this could be a problem if these are used in performances. Then the radios would no longer even be legal, since their governmental approval is based on their operation at the original design frequency. You could be liable for fines if you're ever identified as the source of interference to other radios with the modified equipment.

In short, you'd be better off buying new radios already in the range you need than trying to change these.

Thanks for using Fixya!

Feb 26, 2010 | Sennheiser EW100ENG-G2 2-Way Radio

2 Answers

Hi ihave brought helicopter ftw 730 but the remote control was not its own .the helicopter ftw 730 remote control frequency is 40 mhz but the one i have is 27 mhz so how can i make as 40 mhz remote...


Unfortunately you can't. You will need to change the receiver or the transmitter so they are both the same frequency range eg 40mhz or 27mhz. Then you will need to check the crystal is the same frequency for the Transmitter and receiver eg 40.25mhz. NB. you can't put a 27mhz crystal into a 40mhz set or vise versa it won't work.

Aug 21, 2009 | RC Remote Control Rc Mini Helicopter

2 Answers

Frequency clash


There are different frequencies available and being used in each location.

To get a basic idea of which frequencies are available in your area, try this online tool:
http://www.sennheiserusa.com/findfrequency/
or use the literature provided with the Sennheiser gear (usually a useful chart comes with the wireless gear).

Also, remember that your transmitting frequencies need to be spaced apart a minimum of .400 MHz (or 400 kHz).

Frequency selection shouldn't cause feedback problems though. If you select a frequency for a mic that a local TV station is already using to broadcast, it will cause RF Interference (Radio Frequency). You'll probably hear static noises, pops, or since your Sennheiser has a Squelch feature, just drop-outs in audio.

So first consult the available charts to find a set of frequencies that should be available in your area. Then, if one of your mics is experiencing such an issue, try moving it .400 MHz to the nearest unused frequency and see if the RFI goes away. Repeat until the RFI no longer manifests.

Jan 30, 2009 | Sennheiser 100/500 G2 Series Wireless...

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