• 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.

Astron base station alternative

Status
Not open for further replies.

ht396jm

Member
Joined
Aug 29, 2015
Messages
223
Location
NJ
Can anyone recommend an alternative to providing power to multiple CDM1250s (40 watts) in a command center setting? As opposed to buying multiple astron power supplies?
 

SteveC0625

Order of the Golden Dino since 1972
Premium Subscriber
Joined
Oct 24, 2009
Messages
2,800
Location
Northville, NY (Fulton County)
Can anyone recommend an alternative to providing power to multiple CDM1250s (40 watts) in a command center setting? As opposed to buying multiple astron power supplies?

Motorola HPN4002 power supplies are readily available for under $50 each. They even have the right connector for the CDM’s.
 

mmckenna

I ♥ Ø
Joined
Jul 27, 2005
Messages
26,748
Location
United States
We use a handful of CDM's in our dispatch center for monitoring local agencies.
We're using a pair of Newmar PM-12-40 power supplies 12V DC, 24V DC and 48V DC Rack Mount DC Power Module Power System Series | 10 Amps to 80 Amps | 560 Watts to 2000 WattsPower Module Series | Newmar Powering the Network
Each of those is connected to one side of this breaker panel: Rack Mount DC Distribution Panel | 12V DC | 24V DC | 48V DC | 450 Amps to 900 Amps | Newmar Powering the Network

That way, if one power supply goes down, we only lose half the radios. If it's not that critical, you can buss the two power supplies together (they have blocking diodes on the outputs) and use a single buss breaker panel. Or just use one power supply (they have 40 amp models and 80 amp models)
 

WB9YBM

Active Member
Joined
May 6, 2019
Messages
1,390
Can anyone recommend an alternative to providing power to multiple CDM1250s (40 watts) in a command center setting? As opposed to buying multiple astron power supplies?

Last I checked, astrons come in different sizes--unless there are space restrictions wouldn't a larger size astron work?
 

Project25_MASTR

Millennial Graying OBT Guy
Joined
Jun 16, 2013
Messages
4,558
Location
Texas
If you look, those radios will pull about 10A (DC) a piece when transmitting. You can typically run four off a single 30A supply as long as you are transmitting on no more than two at once (most 30A supplies are rated for 22A continuous). This is great if your radios are all within the same rack or nearby one another. If your power leads have to be over 10 ft long you should be using individual supplies for the radios.

Another thing you can do, convert to a DC plant (only recommend this for rack based ops). MeanWell makes some fairly low cost 24 VDC power supplies, a dual circuit redundancy module and a very low cost 40A UPS module which can easily be paired with DC-DC converters to step down to 12V or up to 48V at amperage ratings to run a radio or two on. Worth looking into as everything but the batteries will fit on 18" of DIN rail.
 
Status
Not open for further replies.
Top