View and Download President HR owner’s manual online. 10 Meter Amateur Transceiver. HR Transceiver pdf manual download. Also for: Hr View and Download PRESIDENT HR user manual online. 10 Meter Amateur Mobile Transceiver. HR Transceiver pdf manual download. PRESIDENT LINCOLN (HR ) MODS by Roger Perales ~ perales Conversion of this text from html format to PDF by Frank TomeŇ°.

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I’m currently investigating a more readily available part for this mod. The set should now lock from I bought mine from the friendly folks at Bill’s 2-way.

My had this mod in it when I got it. Sun, 12 Apr The Chipswitch replacement CPU will not compensate for this either, mabual the people at Chipswitch haven’t shown any interest in releasing a new version to allow for this mod. This will increase the amplitude of the beep. Remove the cover on the speaker side of the radio. The exreme left coil labeled L, adjusts USB.

President HR2510 Owner’s Manual

Connect a watt meter and a dummy load to the antenna jack. Doc’s Radio Repair Repair and Mods for lots of interesting hg2510. Seems kind of silly. Use a 10k ohm resistor if you only use the internal speaker. Set th output of the S. You can see this mod in my schematic of the RIT shifter for the crystal filter mod.

What will mnaual covered here is information that I have found through my own experiments that I have not seen he2510 elsewhere, as well as my own opinions on some of the other published mods. Zdravim vsechny, jiz nekolikrat se mi vyplatilo nechat si poradit, proto by mne i dnes zajimal Vas nazor: To modify this, remove Q and bend the Emmitter leg up from the circuit board and re install.


Locate the 3 tuning coils on the front left corner of the main PCB.

PRESIDENT HR2510 User Manual

The right coil labeled L, adjusts CW. An increase of 5 or 10 watts just isn’t enough to notice under most conditions.

The center coil is labeled L, adjusts LSB. I have not tried this mod, If anyone else has, please let me know the results. To h2r510 this, locate R96 a 2. During this step, set the S.

Uniden HR Service Manual

Anyone who has opened a has noticed the melted plastic of the LCD holder around the display lamp. Adjust L for 6. The new transistor has a different pin out from the original. Adjust ment Remarks Mode: With the Mode switch to AM, Frequency at Its easy and it does not require any new switches.

You can’t go wrong with these folks. These adjustments control the frequency of your carrier oscillators, and will knock your audio out of whack if not adjusted to spec. When I finally managed to acquire an HTX last year, I decided to investigate to try and prove or disprove this notion once and for all.

Seek-This causes the radio to seek for active channels. VR Adjust VR for As can be seen from manua, graph, the HTX filter is indeed significantly narrower than the filter.

HR Manual | Copper Electronics

Chipswitch can be ordered by Phone directly from the manufacurer, there address is: The only thing that I can add is that I placed a short across diode D when I did my mod. Replace the covers and the screws, you should now have between 50 and watts on SSB.

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When the DOWN button is pressed it grounds pin 9, causing the pulse train on pin 8 to be outputed to pin 10 through the isolation resistor to the grey wire on J, this will decrement the frequency of the selected digit on the HR, about 1 digit per pulse as long as the button is held down.

Repeat this two times. I paralleled C and C each with a high-quality computer grade. Sure enough, the USB carrier oscillator frequency is different in the hhr2510 radios! With the radio right side up, it will be found in the front right-hand corner of hr210 PCB. When the UP button is pressed it grounds pin 13, causing the pulse train on pin 12 to be outputed to pin 11 through the isolation resistor to the white wire on J, this will increment the frequency of the selected digit on the HR, about 1 digit per pulse as long as the button is held down.

The next question becomes ‘Can an HTX filter be transplanted into a for better performance?

If you get an external amplifier, just make sure you get one that is actually linear; many of the cheaper so-called ‘linear amplifiers’ operate in a class-C mode with no bias, and splatter the band horribly when used for SSB or AM. Bohuzel dost trpi na koncovy stupen – taky dost zere a topi.