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Remtron Repair

remtron remote control pictureWe repair older style Remtron concrete pumping remote controls. Remtron stopped manufacturing the 72 and 49 Megahertz RCT-4 pump controls a number of years ago  They no longer repair nor have parts for these units. We repair these remote controls using original parts and factory service information. There are other industrial controls by Remtron such as the RCT-804 used on trucks which are similar.  We repair these as well as other obsolete units from Remtron.

We used to  repair the Pump Boss units which replace the RCT-4. Laird has cut off the sale of parts for the circuit board, which makes repair of anything other than the antenna cable possible only at Laird (Phone 234-806-0018).

We strive to keep a stock of the most commonly used items, but less frequently used items such as cases, etc. must be ordered and fabricated since parts are no longer available from the factory.

Since most repairs of these units involve replacing switches which get contaminated inside with concrete dust, grit and water, we will install rubber boots over the switch(es) on repaired units unless you specify otherwise.

If you have extra remotes, or spare boards used in these remotes, call us at (541) 991-3084. We may purchase them ourselves or refer other concrete pumpers to you. Help a fellow line pumper keep his system going.

Click here for some tips on the RCT4 and its receiver.

Do it yourself and save!

Some pump owners like to do everything themselves. That is a great idea, so long as you have the skills to accomplish it successfully. One source for antenna parts in particular is Ham Radio Outlet (HRO), which has stores in several metropolitan areas. There are a number of others as well, such as AES, Universal Radio, R&L and Gigaparts. One customer recently was able to buy a magmount base at HRO, while another who needed the plug end of the Remtana for the Pump Boss was able to find it at their local HRO. Right angle adaptors for the older remotes are available at Radio Shack as 2780199. Although I sell the Amphenol 83-1AP which is a high grade part for maximum range, the Radio Shack part will work in many applications and is available practically anywhere immediately.

If you are going to attempt replacement of the antenna plug on the Remtana, download this customer drawing. It shows how the coax should be trimmed to fit the plug. If you want long service life, you will need a good crimper to crimp firmly the crimp ring that keeps everything in place. Ask where you buy the plug whether they can sell you a crimper for RG58. A good one will set you back $30-$40, but will insure long service on the repaired cable. I bought an AIM CAMBRIDGE 249958P at

Need a pouch for your older style (RCT-4 ) remote? - New Lower Price!

The Yoder's at Plycrete  Pumping in Sarasota, Florida use these remotes (along with new ones). 

They ran out of pouches for them, so they had some made up, enough for themselves and more to sell.  The price is $30 with free shipping to the lower 48, or $20 if you pick one up at their shop.

Email them at  for more information. Or call  (cell) 941-685-4511.

Alternatives to the Pump Boss

Because the Pump Boss spares have become more expensive and the repair work less reliable than it used to be, pumpers have asked me what the alternatives are. One, supplied by, is by Microtronics Controls. Another better known one is Omnex.

Power Connections on Pump Boss Receivers

I recently had one of my customers have a problem with intermittent operation on a Pump Boss setup. When I got it here, I noticed that the black ground wire was considerably shorter than the other leads. Someone had connected up just the red power wire and the control wires and got it to work.

It is NOT designed to work this way. There is a connection from the case to the board, but it is not designed to carry power and it is not soldered on where it is connected to the case. As weather and time take their toll, the fast-on connector inside the case gets erratic and so does operation. So, please, use the black ground wire in a direct connection to the electrical system to assure reliable performance!

Antennas for the Pump Boss Receivers

I receive questions about possible replacements for Pump Boss Antennas, since they are expensive and factory issue antennas are not locally available.

I suggest you consider the following combinations of mounts and antennas.  They are available at:

and other web stores and should be available through electronic stores, ham radio outlets and land mobile installation and repair organizations.

Maganetic NMO Bases: Maxrad CMHFML195C, Larid G195TI. Permanent Mount:  Maxrad MHFML195 (select a Male TNC connector)

Antennas: (These are all listed as having high gain.) Larsen NMO5T900B, Laird TRA9023N, Maxrad BMAX9105, Maxrad MUF9035. 

The Laird 9023N and Maxrad MHFML195C would be most useful for non-metalic surfaces, such as a fiberglass pump cover.

An  appropriate rubber duck type antenna wouild be a Laird 902EXRTN, available at and through the outlets mentioned above.

Another antenna worth considering would be Linx ANT-DB1-LP-RM-01-N available from Mouser Electronics. It has 8.5 db gain and costs about $50.  It needs an adaptor from  N female to TNC male, which costs under $5.

WARNING:  I have not tried these out myself as I am not a concrete pumper.  These are reputable companies and the combination of antenna and mount will cost much less than the factory antenna, and may be available in a larger city near you. I welcome feedback about successful and unsuccessful combinations.

If you go looking for an antenna, you are looking for a TNC Male connector and the frequency the antenna is designed for is 900 Mhz..