To the world of 10 Meter amateur radio communications! You have purchased what we feel to be the finest 10 Meter mobile transceiver available. Your HR 251 0 has been designed using the latest state of the art electronics to give you years of. Add dozens of handy features, and operate at 10, 11, and 12 Meters with a CHIPSWITCH Enhanced Microcomputer. View and Download President HR2510 owner's manual online. 10 Meter Amateur Transceiver. HR2510 Transceiver pdf manual download. GENERAL PROGRAMMING NOTES:.default = The first time the CHIPSWITCH is installed on the HR2510 / HR2600 / LINCOLN, these are the values that will be displayed upon entering PROGRAM MODE. Any frequency type feature. Oct 19, 2001 HR2510 Tips and Tricks. AM, FM, and CW will display normally. The Chipswitch replacement CPU will not compensate for this either, and the people at Chipswitch haven't shown any interest in releasing a new version to allow for this mod. The HR2510 service manual makes no mention of them, but the HTX100 service manual tells the secret.
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The President HR2510 is an all mode 10 meter radio. It has AM, FM, LSB, USB and CW modes. 6 digit frequency display and built in SWR meter. An unlocked HR-2510 can have coverage from 24.800 - 29.999 MHz. It can transmit up to 30 watts and are tunable up to 40 watts.
With a General Class HAM radio license, using the HR2510 is both legal and productive for making long distance contacts on 10-meter with excellent signal reports. **
**This has been challenged. A transceiver that can transmit both on Citizen Band and Amateur Radio is not legal in the U.S. However it is a fact that the HR2510 is legal for amateur radio use as long as the radio has not been modified to operate out of band. Now since this was sold as a 10 meter radio you have to have it converted for it to work on the CB bands. There are a couple of different ways to do the modification and the results can vary - in some cases you may lose certain functions if you do the mod - or the freq will not display the correct channel - or in other cases you can add additional functions as is the case with the chipswitch modification. Once converted the HR2510 can have coverage from 24.800 - 29.999 MHz.
Due to the abuse of this radio, as in the illegal modifications allowing unlicensed individuals to operate on CB band, the FCC has deemed the President HR250 as 'blacklisted.' This may be referred to as having an unlocked clarifier. The FCC Market Blacklist due to CB Related Abuse does not make it illegal to own or buy this radio. It is illegal to market and advertise the product, so manufacture, import, and commercial sale of the President HR2510 was banned by the FCC. It is unfortunate as this truly is a 5-star 10-meter rig when used legally.
The President HR2510 was relatively inexpensive and could allow an entry level Tech class licensed HAM to make distant contacts on the HR band. In fact, a tech class is allowed CW, Data, and RTTY from 28.0 to 28.3Mhz. A Tech can also use SSB/CW from 28.3 to 28.5Mhz. This opens up an area of HF for the teach class for under $200.
LEGAL USE OF MODIFIED RADIO: It is true that in the event of a life threatening emergency, where all other forms of communication have been exhausted, you may operate out-of-band to find help. The FCC will forgive this out-of-band use in a life threatening emergency. Also, the disaster preparation community prefers to have these radios 'unlocked' so the option is available in an emergency. An unlocked Uniden President HR2510 may still be legally operated within the correct band for a licensed operator, reserving the use of out-of-band frequencies for an extreme emergency situation. That's why it is nice to have it unlocked, even though it should not be used out-of-band.
specifications
RF Power output: AM/FM/CW: 10 W and SSB: 25 W
Deadkey on these radios from the factory was around 8-10 watts and should not be set any higher.
Standard features included Volume, Squelch, R.F. Gain, and a receive-only RIT control. Other features included a P.A. function, a switchable roger beep, a two position Mike Gain switch, and an effective Noise Blanker. The 10 segment LCD bar graph meter included S/R.F. and SWR functionality.
The frequency plan for the CB band, as well as the upper and lower portions of the 'freeband', is included in the factory microprocessor's tuning tables, which only required a simple modification to enable.
The nomenclature is said to be something like this: the HR stands for Ham Radio, the 25 is for 25W PEP which is the output power, and the 10 because it's a 10m radio. This is not a confirmed or published fact, merely what has been stated by operators and is widely believed.
Factory frequency coverage: 28-29.7 MHz
Modified frequency coverage: 26-29.999 MHz
Bands: band selector switch after modification
Controls
modification
There are many mods available for this radio. However, some of the power output claims are false. One common completely false claim was that the pre-driver and final could be modified to get 90 Watts PEP output from the President HR-2510. This resulted in high sales of Motorola transistors necessary for the mod. In reality you can achieve an average increase of 15 Watts PEP or less than a 50% increase in output power. This increase amounts to approximately 1.5 dB or 1/2 of an “S” unit. The caution is that this might be at the expense of worse harmonics.
Repeater Split Mod
Avoid this mod. The use of switching diodes across the IF crystal filter in this mod will make it transmit dirty and destroy the diodes. Use a chipswitch
service and repair
The original transmit final transistor, the MRF 477 has been discontinued, and supplies have all but dried up. If you run out of spares, you are basically left with few options. It is possible to adapt a Japanese replacement transistor, but power output will likely be less. You can also retrofit the beefier MRF-450, 455 or similar stud mount 'pill' type transistors. Power output will still not be as good as the original, but it will be a more reliable device.
External Resources
Retrieved from 'http://wiki.robotz.com/index.php?title=Uniden_President_HR2510&oldid=14205'
This page has various modifications for the HR2510 / 2600 / Lincoln
The President Lincoln is also found under the name Uniden 2830 and in the United States and many non-European countries it was marketed as the President or Uniden HR2510 which has minor differences in the controls but otherwise operation is the same. There is also an HR2600, which looks identical, but this one has repeater shifts and CTCSS tones, which the Lincoln/2830/2510 doesn't, and the 2600 cannot be modified to 27Mhz without serious surgery.
Haynes Manual Download
Beatbox mini bluetooth speaker user manual. GoTo the HR2600 Power Increase page
GoTo the Bleep Improvement's page
GoTo the Button Press Bleep Mod page
GoTo the Auto Squelch Improvement's page
GoTo the 26.000-29.699/29.999 Mhz Expansion page (2510/lincoln only)
GoTo the 24.000 Mhz Frequency Expansion page (all models)
GoTo the 24 Mhz Frequency Expansion For The Chipswitchpage
Go To the Hard To Find Info page
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