PRC-351 First Impressions, Compared to Modern Handhelds.
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- Опубліковано 28 лис 2024
- First impressions of the PRC-351 VHF FM military manpack from the 80s and how it compares to VHF/UHF handhelds today. Please see: / radioprepper DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Freedom means freedom from persecution based on any human trait or belief such as, non exhaustively, race, gender, religion, sexual orientation or nationality. The Radio Prepper channel is a technology and science channel with a focus on preparedness and use of radio technology for disaster relief and small group communications in times of need. It is apolitical and open to anyone sharing the same interests. .
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You can connect two of them with the Intercom cable, select "Auto-Rebroadcast" on both radios and you have setted up an automatic repeater that can work completely unattended as long as they have some power in the batteries or a power supply pluged in.
And the two stations of the repeater can be placed everywhere between 50m (15 with the Selectivity Unity installed) and up to 3000m away from each other!
E.g. On the two sides of a mountain.
I have thought about it, more than once! Something I might do...
UK PRC 351. Frequency range 30 - 75.975 MHz. 1840 channels at 25 KHz spacing. Basic planning range of 8KM, 16KM if fitted with a 20 watt amp.
One of the advantages to owning military transceivers are that they are gapless. Granted, in a normal situation, you can only use the Amateur Radio frequencies. In a total breakdown, you have a wider range to use with the PRC-351. Let’s hope it never comes to this =) 73!
Very true. I might use my 320 for maritime purposes...
Nicely done sir!
Thank you!
Gil, I'm pretty sure you can use that whip without the SURF. If I'm not mistaken its mainly used to combat interference with and from close by radios. Do you have the manual?
VK6OP Absolutely, but I wanted a bit more oomph... Better efficiency with a near-half-wave longer whip and tuner...
Gil what do you use to charge your PRC-351 24v NiCd battery? I have seen a couple of different solutions & would appreciate your opinion.
www.componentshop.co.uk/500ma-smart-charger-for-12v-24v-race-packs-10-20-cell-pack.html
Same as the Tenergy... I will be building a 12V charger soon with cheap Chinese circuits..
That's great. Many thanks it will get me started. Fortunately my local club runs a 6m net once a week so I am hoping to experiment with a PRC-350. As I have only just got my licence I am cautious about plunging into power supplies just yet until I have gained a bit of experience & know what I am doing but am interested in building a charger that monitors the temperature using the diode output & cuts off if the readings start to diverge too much. I love watching your videos. Chris M6NZX
Thanks, good luck!
Hi Chri, I use a 28v DCCU and a 'bodged' laptop charger. Works a treat
The 20W PA is not used portable, only when fixed or mobile
I use it portable :-) not on my back though...
What does the radiation warning (sticker) mean? (on some devices)
Radium paint on the needles (glowing in the dark)... I think.
SURF unit to measure Radio waves going though the unit.
The SURF is a band-pass filter.
@@RadioPrepper I'm kinda new to this so I'm not too sure about it but I do know the dial has something to do with radio waves.
Piękne radio, ciężkie, delikatne - obudowa z słabego materiału jakim jest duraluminium - nie wytrzymuje upadku z 1 metra jak nowoczesne radia i wiele metrów (smartphone) , ale to tak samo jak inne radiostacje podobnej wielkości - ciężkie i nieodporne na upadek.
Działa super :-). bardzo dobry akumulator, dużo godzin pracy w TX.
Słabej jakości słuchawka - bardzo delikatna.
Ja następny
10 km zasięgu w płaskim terenie miedzy dwoma takimi samymi radiami z dłuższymi antenami bez SURF, z dala od miasta.
Pozdrawiam serdecznie :-)
Regarding your disclaimer, when you have to explain yourself in that manner, you're explaining yourself to Nazi's. I'm a prepper and a vet, that doesn't make me a terrorist, regardless what the media says.
Right on.
17 Min video and 30 seconds call
It's not the call that matters. It's the other 16:30.
gil have you built a simple tunner that maybe the ticket ???? jg
+jerome grzelak Hi, I have the SURF unit now but also use my T1 auto tuner.
Tank mounted Radio communication and Portable
Dear Group
Attached is the link for PRC-77 price list recently uploaded to the
group FILES : groups.yahoo.com/group/Racal-manpacks/files/ -Under anthony hendra
Our firm is a legitimate company based in indonesia and we dont have any website and will most probably never have any.
Previously we only deal exclusively to government issued purchase
order and we have legit papers for that - incl advanced payment bond, bank guarantee and performance bond issued by Bank of America (BofA).
Our contract is strictly government. including instructions from BofA
addressed to the Commander in Chief of The Indonesian Army.
We'd prefer to sell and ship them in whole. these merchandise have been sitting dusty but are kept and maintained in fine condition. as stated before - these are just leftover stocks that we are happy to clean out. :)
MODULE SPECIFICATIONS
A11A - DISCRIMINATOR SYNTHESIZER - D875705
A16A - VOLTAGE REGULATOR - D875708
A17A - PHASE COMPARATOR - D875704
A18A - 5.6 MHZ IF AMPLIFIER - D875722
A21A - RECEIVER IF AMPLIFIER LIMITER - SMD 875724
A23 - TONE GENERATOR - 447316
A31 - TRANSMITTER FREQUENCY CONTROL - 448740
A32 - RECEIVER INPUT - 448741
A33 - RECEIVER FIRST RF - 448742
A34 - RECEIVER SECOND RF - 448743
A35A - RECEIVER MIXER - D875692
A36 - TRANSMITTER PA - 448744
A37 - TRANSMITTER IPA - 448745
A38 - TRANSMITTER VFO - 448746
A39A - SYNTHESIZER VFO - D875672
A40A - INTERVAL OSCILLATOR - 875659
A43A - 53 MC FILTER - 448739
A44A - FIRST MIXER - 621272
A45A - 1 MHZ SPECTRUM GENERATOR - D875701
A50 - XMTR MIXER - 448753
A54A - TONE SQUELCH - 875637
A55 - RECEIVER AUDIO - 448752
www.nj7p.org/Manuals/Index_Manuals.php/ ua-cam.com/video/yaDh4hIjlSI/v-deo.html&feature=share
Ok, I will let this through, once. Anthony, do you have military antennas? Send me the list and prices to gil@radiopreppers.com, thanks.