We just received a XTL2500 with an HLN6042A as a station tone dispatch from our county dispatch center. We are a small rural fire department in Indiana. What I was trying to find out was what the impedance rating on the speaker in the HLN6042A was, if anyone happens to know. A brief search here on the forums as well as on google failed to provide that information. The reason I'm trying to locate that info is I'm trying to figure out the easiest way to add a few more speakers to the unit. Currently, it sits in the office, which is fine if we're in the office, but I'd like to be able to add a speaker to the vehicle bay. The easiest way I can think of is if I can find out what the impedance on the built in speaker is, then if I can find three more with the same impedance rating, I can run two in series and two in parallel off of the back factory connection, adding a total of 4 speakers while maintaining the exact same impedance, and avoid damaging any of the circuitry in the amplifier.
-
To anyone looking to acquire commercial radio programming software:
Please do not make requests for copies of radio programming software which is sold (or was sold) by the manufacturer for any monetary value. All requests will be deleted and a forum infraction issued. Making a request such as this is attempting to engage in software piracy and this forum cannot be involved or associated with this activity. The same goes for any private transaction via Private Message. Even if you attempt to engage in this activity in PM's we will still enforce the forum rules. Your PM's are not private and the administration has the right to read them if there's a hint to criminal activity.
If you are having trouble legally obtaining software please state so. We do not want any hurt feelings when your vague post is mistaken for a free request. It is YOUR responsibility to properly word your request.
To obtain Motorola software see the Sticky in the Motorola forum.
The various other vendors often permit their dealers to sell the software online (i.e., Kenwood). Please use Google or some other search engine to find a dealer that sells the software. Typically each series or individual radio requires its own software package. Often the Kenwood software is less than $100 so don't be a cheapskate; just purchase it.
For M/A Com/Harris/GE, etc: there are two software packages that program all current and past radios. One package is for conventional programming and the other for trunked programming. The trunked package is in upwards of $2,500. The conventional package is more reasonable though is still several hundred dollars. The benefit is you do not need multiple versions for each radio (unlike Motorola).
This is a large and very visible forum. We cannot jeopardize the ability to provide the RadioReference services by allowing this activity to occur. Please respect this.
XTL2500 and HLN6042A
- Thread starter dennhop
- Start date
- Status
prcguy
Member
The best way to add all those speakers is to put a 70 volt line transformer at the radio and matching transformers at each speaker. The 70 volt line transformer has a high impedance output and the corresponding transformers at each speaker have a high impedance input reducing speaker wire loss on long runs. These transformers usually have taps for different power levels to the speaker so you can have one radio volume setting and some speakers downstream can be louder than others depending on the tap used.
The Motorola speaker is probably somewhere between 4 and 8 ohms but that won't matter when using these transformers, just wire them all up and it should work ok. I would recommend using a high efficiency horn type speaker to cover a large area so it can put out a lot of acoustical energy without taking a lot of power from the radio. The stock Motorola speaker should be fine near the operator like in a dispatch area since it doesn't have to get very loud.
The Motorola speaker is probably somewhere between 4 and 8 ohms but that won't matter when using these transformers, just wire them all up and it should work ok. I would recommend using a high efficiency horn type speaker to cover a large area so it can put out a lot of acoustical energy without taking a lot of power from the radio. The stock Motorola speaker should be fine near the operator like in a dispatch area since it doesn't have to get very loud.
MTS2000des
5B2_BEE00 Czar
Whatever you do NOT connect any speaker to the radio's ground, chassis ground, or DC ground or you WILL destroy the audio PA.
IIRC it's an 8 ohm speaker with a limiting resistor inline.
IIRC it's an 8 ohm speaker with a limiting resistor inline.
prcguy
Member
Using a 70 volt line transformer will fix that, all speaker wires would be floating with no connection to ground.
- Status
