TOA WM4310 D02 Radio Mic Channel list

[Bazz339]

Hi, 

Does anyone have a list giving frequency against numbers on the dial of the multi position rotary switches used to set the freqency please?
I have downloaded a copy of the manual and searched on line but not come up with anything. 

I have a TX passed to me for repair as non functioning, the RX is still on site some way away. I am sure I have tested this unit before using my Sennheiser UHF receivers but am not get anything from it. It may be I am not finding the right frequency. The actual lavalier mic is working although in need of replacement, it has been repaired that many times. I am suspecting a TX fault. 

Does anyone know what the spec of the DC connector to the RX is please?  I.e diameter of socket and central pin. 

[Yorkie]

Bizarrely that model number rings a bell... just found documents from thirteen years ago, with a paper I wrote for a church:

Receiver: TOA WT-4810 D02  - Back panel 13-18V DC 250mA, Manual 12V DC 130mA, Polarity and size not stated
Beltpack Transmitter: TOA WM-4310 D02

Frequencies:

• 0 - 854.900
• 1 - 855.275
• 2 - 855.900
• 3 - 856.175
• 4 - 856.575
• 5 - 857.625
• 6 - 857.950
• 7 - 858.200
• 8 - 858.650
• 9 - 860.400
• A - 860.900
• B - 861.550
• C - 863.375
• D - 863.925
• E - 864.375
• F - 864.725

[bruce]

I've got a couple of TOA WT-4800 receivers going spare, if anyone has a use for them. Cover postage costs, and put something in the charity bucket...

 

The mics died some time ago when the batteries leaked,

 

[Bazz339]

Thanks Yorkie that is what I needed, Bruce thank you, unfortunately it is the TX that is faulty. I will recommend replacement. The capsule and aerial are both beyond repair so not economic to pursue an electronic fault. 

[Jon Wiles]

On 3/8/2023 at 5:16 PM, Yorkie said:

Bizarrely that model number rings a bell... just found documents from thirteen years ago, with a paper I wrote for a church:

Receiver: TOA WT-4810 D02  - Back panel 13-18V DC 250mA, Manual 12V DC 130mA, Polarity and size not stated
Beltpack Transmitter: TOA WM-4310 D02

Frequencies:

• 0 - 854.900
• 1 - 855.275
• 2 - 855.900
• 3 - 856.175
• 4 - 856.575
• 5 - 857.625
• 6 - 857.950
• 7 - 858.200
• 8 - 858.650
• 9 - 860.400
• A - 860.900
• B - 861.550
• C - 863.375
• D - 863.925
• E - 864.375
• F - 864.725

That's all the old Ch69 stuff that can't be used anyway

[Yorkie]

1 hour ago, Jon Wiles said:

That's all the old Ch69 stuff that can't be used anyway

The last four are in Ch70

[sunray]

7 hours ago, Yorkie said:

The last four are in Ch70

And they will play nicely together, unlike some brands with 4channels of CH70

Edited March 11, 2023 by sunray

[Bazz339]

I am sure every small band, every small rural church, venue, dance studio etc. Is fully licenced and aware of the frequency band changes and fully compliant with them 

Edited March 11, 2023 by Bazz339

[paulears]

One of the cheapest and best tools for RF work is a simple SDR dongle - twenty five quid, free software and you can find anything from virtually audio to microwave!

[sunray]

10 hours ago, Bazz339 said:

I am sure every small band, every small rural church, venue, dance studio etc. Is fully licenced and aware of the frequency band changes and fully compliant with them 

I imagine by now everyone is fully aware of the band changes some 12 years ago...

Even the hire company who supplied 8 channels of hh mics  last year with a band PA and added a fee of  £80 for (and copy of) their radio mic license.

Wanting to use mics nearby I checked those mics with frequency counter, they had supplied a ch 65, a ch38 and 6 in ch69, leaving me loads of space.

Edited March 11, 2023 by sunray

[DavePallant]

I'm always surprised (no not really) by how much wireless mic gear is sold on ebay, quite often from production companies, in bands other than GB or E with no mention of the fact that it would be generally illegal to turn it on in the UK. Just checked and there are plenty of examples of Sennheiser G3 in bands B and C. The frequencies are plain to see in the photos and sometimes the descriptions and there is nothing wrong with selling the items at all but it might be fairer to point out they are not UK frequencies!