P38A The wonderful RF Filter fix for insomniac BeCM's

DanClarke said:

I recently treated myself to one of the RF filter devices for Range Rover P38 “V1 and V2” RF receivers. I got it from p38webshop which is run by our friend and colleague on this board MartyUK.

OK, why did I buy it when I already had a <£10 “Jog-Unit” in place; as this essentially makes the Revision 1 & 2 RF receivers totally “deaf” until you “jog” it?

My reasons were:

1. That the jog unit I had employed had no ‘tell-tale’ to indicate whether it was engaged or not; and I found myself continually doubting whether it was “ON” and the RF unit was therefore disabled or “Off” and my battery was at risk of being drained.

2. I found myself trying to unlock/lock my car with my fob far more frequently in order to test whether the Jog unit was on or off.

3. I kept getting inconsistent results with the “one-two” combination of “Press Jog-Unit” then “Press Unlock on my keyfob” which led to doubts as to status.

4. The jog unit was yet another “fob” on and already busy and bulky keyring.

5. I wanted the convenience of a working Revision 3 Landrover RF unit without paying the ridiculous Landrover price.


OK, so that was my reasoning for buying the RF filter @ £79.99 + P&P.

Looks like i will invest in one of these then off Marty if he still does them???

Was it hard to fit?
No, it comes with a plug and socket exactly the same as those of the RF-Unit itself and so is a simple unplug-re-plug in series operation. A supplied cable-tie tethers the RF-Filter to the RF-Unit or to the metalwork in the vicinity.

Does It Work?
I am very pleased to report that …Yes it does!

My Range Rover is parked in close proximity (<20 feet) to 3 Wireless door-bells and a Garage door opener that all operate on 433Mhz. Knowing that pressing my doorbell also trips my neighbour’s chime-unit is a testament to the swamped RF interference that used to flatten my battery.

Sure, the “Jog-Unit” switched the RF receiver “off” but ensuring what state things were in and getting reliable “pop & go” of my door locks was inconsistent with the Jog-Unit & key fob combo.

Not so with the RF filter and the fob, it’s so very much better.

I have no affiliation with the supplier, this is just my honest view, I’d rather spend this modest amount than the exorbitant ransom value LR want to charge to eradicate a problem of their own making.

Click to expand...

DanClarke said:

I recently treated myself to one of the RF filter devices for Range Rover P38 “V1 and V2” RF receivers. I got it from p38webshop which is run by our friend and colleague on this board MartyUK.

OK, why did I buy it when I already had a <£10 “Jog-Unit” in place; as this essentially makes the Revision 1 & 2 RF receivers totally “deaf” until you “jog” it?

My reasons were:

1. That the jog unit I had employed had no ‘tell-tale’ to indicate whether it was engaged or not; and I found myself continually doubting whether it was “ON” and the RF unit was therefore disabled or “Off” and my battery was at risk of being drained.

2. I found myself trying to unlock/lock my car with my fob far more frequently in order to test whether the Jog unit was on or off.

3. I kept getting inconsistent results with the “one-two” combination of “Press Jog-Unit” then “Press Unlock on my keyfob” which led to doubts as to status.

4. The jog unit was yet another “fob” on and already busy and bulky keyring.

5. I wanted the convenience of a working Revision 3 Landrover RF unit without paying the ridiculous Landrover price.


OK, so that was my reasoning for buying the RF filter @ £79.99 + P&P.

Was it hard to fit?
No, it comes with a plug and socket exactly the same as those of the RF-Unit itself and so is a simple unplug-re-plug in series operation. A supplied cable-tie tethers the RF-Filter to the RF-Unit or to the metalwork in the vicinity.

Does It Work?
I am very pleased to report that …Yes it does!

My Range Rover is parked in close proximity (<20 feet) to 3 Wireless door-bells and a Garage door opener that all operate on 433Mhz. Knowing that pressing my doorbell also trips my neighbour’s chime-unit is a testament to the swamped RF interference that used to flatten my battery.

Sure, the “Jog-Unit” switched the RF receiver “off” but ensuring what state things were in and getting reliable “pop & go” of my door locks was inconsistent with the Jog-Unit & key fob combo.

Not so with the RF filter and the fob, it’s so very much better.

I have no affiliation with the supplier, this is just my honest view, I’d rather spend this modest amount than the exorbitant ransom value LR want to charge to eradicate a problem of their own making.

Click to expand...

DanClarke said:

I recently treated myself to one of the RF filter devices for Range Rover P38 “V1 and V2” RF receivers. I got it from p38webshop which is run by our friend and colleague on this board MartyUK.

OK, why did I buy it when I already had a <£10 “Jog-Unit” in place; as this essentially makes the Revision 1 & 2 RF receivers totally “deaf” until you “jog” it?

My reasons were:

1. That the jog unit I had employed had no ‘tell-tale’ to indicate whether it was engaged or not; and I found myself continually doubting whether it was “ON” and the RF unit was therefore disabled or “Off” and my battery was at risk of being drained.

2. I found myself trying to unlock/lock my car with my fob far more frequently in order to test whether the Jog unit was on or off.

3. I kept getting inconsistent results with the “one-two” combination of “Press Jog-Unit” then “Press Unlock on my keyfob” which led to doubts as to status.

4. The jog unit was yet another “fob” on and already busy and bulky keyring.

5. I wanted the convenience of a working Revision 3 Landrover RF unit without paying the ridiculous Landrover price.


OK, so that was my reasoning for buying the RF filter @ £79.99 + P&P.


I have just registered with P38 shop and emailed them as it looks like they are based very close to me in Swindon.

Regards, Brendan

Was it hard to fit?
No, it comes with a plug and socket exactly the same as those of the RF-Unit itself and so is a simple unplug-re-plug in series operation. A supplied cable-tie tethers the RF-Filter to the RF-Unit or to the metalwork in the vicinity.

Does It Work?
I am very pleased to report that …Yes it does!

My Range Rover is parked in close proximity (<20 feet) to 3 Wireless door-bells and a Garage door opener that all operate on 433Mhz. Knowing that pressing my doorbell also trips my neighbour’s chime-unit is a testament to the swamped RF interference that used to flatten my battery.

Sure, the “Jog-Unit” switched the RF receiver “off” but ensuring what state things were in and getting reliable “pop & go” of my door locks was inconsistent with the Jog-Unit & key fob combo.

Not so with the RF filter and the fob, it’s so very much better.

I have no affiliation with the supplier, this is just my honest view, I’d rather spend this modest amount than the exorbitant ransom value LR want to charge to eradicate a problem of their own making.

Click to expand...

wammers said:

Never had problems with mine. But it's certainly cheaper than third generation RF receiver. Land Rover made a killing out of that. Was never fitted to any production car, came out after production had stopped. That tells me they knew about the problem and should have retrofitted at least those cars still under warranty. For maybe £10.00 quids worth of parts the price is ridiculous.

Click to expand...